Loading…

Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil

The lifetime risk of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) development differs among ethnic groups. To better understand these differences, this prospective cohort study was conducted to investigate the cytokine profile and the HTLV-1 proviral load (PVL) in Japanese and...

Full description

Saved in:
Bibliographic Details
Published in:PloS one 2017-04, Vol.12 (4), p.e0174869-e0174869
Main Authors: Domingos, João Américo, Soares, Luana Silva, Bandeira, Larissa M, Bonin, Camila Mareti, Vicente, Ana C P, Zanella, Louise, Puga, Marco Antonio Moreira, Tozetti, Inês Aparecida, Motta-Castro, Ana Rita Coimbra, da Cunha, Rivaldo Venâncio
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3
cites cdi_FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3
container_end_page e0174869
container_issue 4
container_start_page e0174869
container_title PloS one
container_volume 12
creator Domingos, João Américo
Soares, Luana Silva
Bandeira, Larissa M
Bonin, Camila Mareti
Vicente, Ana C P
Zanella, Louise
Puga, Marco Antonio Moreira
Tozetti, Inês Aparecida
Motta-Castro, Ana Rita Coimbra
da Cunha, Rivaldo Venâncio
description The lifetime risk of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) development differs among ethnic groups. To better understand these differences, this prospective cohort study was conducted to investigate the cytokine profile and the HTLV-1 proviral load (PVL) in Japanese and non-Japanese populations with HAM/TSP and asymptomatic carriers (ACs). The serum IL-2, IL-4, IL-6, IL-10, IL-17, TNF-α, and IFN-γ levels were quantified using the Cytometric Bead Array in 40 HTLV-1-infected patients (11 HAM/TSP and 29 ACs) and 18 healthy controls (HCs) in Brazil. Among ACs, 15 were Japanese descendants and 14 were non-Japanese. Of 11 patients with HAM/TSP, only one was a Japanese descendant. The HTLV-1 PVL was quantified by real-time PCR. The HTLV-1 PVL was 2.7-fold higher in HAM/TSP patients than ACs. Regardless of the clinical outcome, the PVL was significantly higher in patients younger than 60 years than older patients. The HAM/TSP and ACs had higher IL-10 serum concentrations than that of HCs. The ACs also showed higher IL-6 serum levels than those of HCs. According to age, the IL-10 and IL-6 levels were higher in ACs non-Japanese patients older than 60 years. HAM/TSP patients showed a positive correlation between IL-6 and IL-17 and a negative correlation between the PVL and IL-17 and IFN-γ. In the all ACs, a significant positive correlation was observed between IL-2 and IL-17 and a negative correlation was detected between IL-10 and TNF-α. Only 6.25% of the Japanese patients were symptomatic carriers, compared with 41.67% of the non-Japanese patients. In conclusion, this study showed that high levels of HTLV-1 PVL was intrinsicaly associated with the development of HAM/TSP. A higher HTLV-1 PVL and IL10 levels found in non-Japanese ACs over 60 years old, which compared with the Japanese group depicts that the ethnic background may interfere in the host immune status. More researches also need to be undertaken regarding the host genetic background to better understand the low frequency of HAM/TSP in Japanese HTLV-1-infected individuals.
doi_str_mv 10.1371/journal.pone.0174869
format article
fullrecord <record><control><sourceid>gale_plos_</sourceid><recordid>TN_cdi_plos_journals_1884118361</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A488519974</galeid><doaj_id>oai_doaj_org_article_42ec3efe7a8e429e8c6e9bb9fea73e70</doaj_id><sourcerecordid>A488519974</sourcerecordid><originalsourceid>FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3</originalsourceid><addsrcrecordid>eNqNk8Fu1DAQhiMEoqXwBggiISE4ZImdrO1ckMoK6KKVKkHp1Zokk6yXxF7spFCOPDnOblo2qAfkgy37m9-efzxB8JTEM5Jw8mZjequhmW2NxllMeCpYdi84JllCI0bj5P7B-ih45NwmjueJYOxhcERFwlmc0ePg9-K6M9-UxnBrTaUaDEGXw_pKWWjCxkAZQmt0HX6CLWh0GKq2VbUF3bkdq42O_p7pCosOy_CH6tbh2cXqMiJ-M4QdhrrEVhUhWITQVOE7C79U8zh4UEHj8Mk4nwRfP7y_WJxFq_OPy8XpKipYRruIiIxRTismuM81Z0AZyeacMyx9hozwIk84zeM8p5izWKSczlMAoHnJOYciOQme73W3jXFytM9JIkRKiPAKnljuidLARm6tasFeSwNK7jaMrSXYThUNypRikWCFHASmNENRMMzyPKsQeII89lpvx9v6vMWyQN15Qyei0xOt1rI2V9LXKE5o4gVejQLWfO_RdbJVrsCm8U6bfv_ulBFBUo---Ae9O7uRqsEn4Ctl_L3FICpPUyHmJMv4oDW7g_JjVzr_14ZPMg14PQnwTIc_uxp65-Tyy-f_Z88vp-zLA3aN0HRrZ5q-U0a7KZjuwcIa5yxWtyaTWA6tcuOGHFpFjq3iw54dFug26KY3kj9kDw5w</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1884118361</pqid></control><display><type>article</type><title>Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil</title><source>PubMed Central</source><source>ProQuest Publicly Available Content database</source><creator>Domingos, João Américo ; Soares, Luana Silva ; Bandeira, Larissa M ; Bonin, Camila Mareti ; Vicente, Ana C P ; Zanella, Louise ; Puga, Marco Antonio Moreira ; Tozetti, Inês Aparecida ; Motta-Castro, Ana Rita Coimbra ; da Cunha, Rivaldo Venâncio</creator><contributor>Jacobson, Steven</contributor><creatorcontrib>Domingos, João Américo ; Soares, Luana Silva ; Bandeira, Larissa M ; Bonin, Camila Mareti ; Vicente, Ana C P ; Zanella, Louise ; Puga, Marco Antonio Moreira ; Tozetti, Inês Aparecida ; Motta-Castro, Ana Rita Coimbra ; da Cunha, Rivaldo Venâncio ; Jacobson, Steven</creatorcontrib><description>The lifetime risk of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) development differs among ethnic groups. To better understand these differences, this prospective cohort study was conducted to investigate the cytokine profile and the HTLV-1 proviral load (PVL) in Japanese and non-Japanese populations with HAM/TSP and asymptomatic carriers (ACs). The serum IL-2, IL-4, IL-6, IL-10, IL-17, TNF-α, and IFN-γ levels were quantified using the Cytometric Bead Array in 40 HTLV-1-infected patients (11 HAM/TSP and 29 ACs) and 18 healthy controls (HCs) in Brazil. Among ACs, 15 were Japanese descendants and 14 were non-Japanese. Of 11 patients with HAM/TSP, only one was a Japanese descendant. The HTLV-1 PVL was quantified by real-time PCR. The HTLV-1 PVL was 2.7-fold higher in HAM/TSP patients than ACs. Regardless of the clinical outcome, the PVL was significantly higher in patients younger than 60 years than older patients. The HAM/TSP and ACs had higher IL-10 serum concentrations than that of HCs. The ACs also showed higher IL-6 serum levels than those of HCs. According to age, the IL-10 and IL-6 levels were higher in ACs non-Japanese patients older than 60 years. HAM/TSP patients showed a positive correlation between IL-6 and IL-17 and a negative correlation between the PVL and IL-17 and IFN-γ. In the all ACs, a significant positive correlation was observed between IL-2 and IL-17 and a negative correlation was detected between IL-10 and TNF-α. Only 6.25% of the Japanese patients were symptomatic carriers, compared with 41.67% of the non-Japanese patients. In conclusion, this study showed that high levels of HTLV-1 PVL was intrinsicaly associated with the development of HAM/TSP. A higher HTLV-1 PVL and IL10 levels found in non-Japanese ACs over 60 years old, which compared with the Japanese group depicts that the ethnic background may interfere in the host immune status. More researches also need to be undertaken regarding the host genetic background to better understand the low frequency of HAM/TSP in Japanese HTLV-1-infected individuals.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0174869</identifier><identifier>PMID: 28376092</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Aged ; Asian Continental Ancestry Group ; Biology and life sciences ; Brazil - epidemiology ; Care and treatment ; Carrier State - epidemiology ; Carrier State - immunology ; Carrier State - virology ; Carriers ; Case-Control Studies ; Central nervous system diseases ; Cohort Studies ; Correlation ; Cytokines ; Cytokines - blood ; Emigrants and Immigrants ; Etiology (Medicine) ; Female ; Gene expression ; Hereditary spastic paraplegia ; HTLV-I (Virus) ; HTLV-I Infections - epidemiology ; HTLV-I Infections - immunology ; HTLV-I Infections - virology ; Human T-lymphotropic virus 1 - isolation &amp; purification ; Human T-lymphotropic virus 1 - pathogenicity ; Humans ; Immigrants ; Immune status ; Immunology ; Infections ; Interleukin 1 ; Interleukin 10 ; Interleukin 17 ; Interleukin 2 ; Interleukin 4 ; Interleukin 6 ; Japan - ethnology ; Low frequencies ; Male ; Medicine and Health Sciences ; Middle Aged ; Minority &amp; ethnic groups ; Noncitizens ; Paraparesis, Tropical Spastic - epidemiology ; Paraparesis, Tropical Spastic - immunology ; Paraparesis, Tropical Spastic - virology ; Pathogenesis ; Patients ; People and places ; Polymerase chain reaction ; Prospective Studies ; Proviruses - isolation &amp; purification ; Research and Analysis Methods ; Serum levels ; Spastic paraparesis ; Spinal cord ; Studies ; Syphilis ; Tropical spastic paraparesis ; Tumor necrosis factor ; Tumor necrosis factor-TNF ; Viral Load ; γ-Interferon</subject><ispartof>PloS one, 2017-04, Vol.12 (4), p.e0174869-e0174869</ispartof><rights>COPYRIGHT 2017 Public Library of Science</rights><rights>2017 Domingos et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2017 Domingos et al 2017 Domingos et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3</citedby><cites>FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1884118361/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1884118361?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28376092$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Jacobson, Steven</contributor><creatorcontrib>Domingos, João Américo</creatorcontrib><creatorcontrib>Soares, Luana Silva</creatorcontrib><creatorcontrib>Bandeira, Larissa M</creatorcontrib><creatorcontrib>Bonin, Camila Mareti</creatorcontrib><creatorcontrib>Vicente, Ana C P</creatorcontrib><creatorcontrib>Zanella, Louise</creatorcontrib><creatorcontrib>Puga, Marco Antonio Moreira</creatorcontrib><creatorcontrib>Tozetti, Inês Aparecida</creatorcontrib><creatorcontrib>Motta-Castro, Ana Rita Coimbra</creatorcontrib><creatorcontrib>da Cunha, Rivaldo Venâncio</creatorcontrib><title>Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>The lifetime risk of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) development differs among ethnic groups. To better understand these differences, this prospective cohort study was conducted to investigate the cytokine profile and the HTLV-1 proviral load (PVL) in Japanese and non-Japanese populations with HAM/TSP and asymptomatic carriers (ACs). The serum IL-2, IL-4, IL-6, IL-10, IL-17, TNF-α, and IFN-γ levels were quantified using the Cytometric Bead Array in 40 HTLV-1-infected patients (11 HAM/TSP and 29 ACs) and 18 healthy controls (HCs) in Brazil. Among ACs, 15 were Japanese descendants and 14 were non-Japanese. Of 11 patients with HAM/TSP, only one was a Japanese descendant. The HTLV-1 PVL was quantified by real-time PCR. The HTLV-1 PVL was 2.7-fold higher in HAM/TSP patients than ACs. Regardless of the clinical outcome, the PVL was significantly higher in patients younger than 60 years than older patients. The HAM/TSP and ACs had higher IL-10 serum concentrations than that of HCs. The ACs also showed higher IL-6 serum levels than those of HCs. According to age, the IL-10 and IL-6 levels were higher in ACs non-Japanese patients older than 60 years. HAM/TSP patients showed a positive correlation between IL-6 and IL-17 and a negative correlation between the PVL and IL-17 and IFN-γ. In the all ACs, a significant positive correlation was observed between IL-2 and IL-17 and a negative correlation was detected between IL-10 and TNF-α. Only 6.25% of the Japanese patients were symptomatic carriers, compared with 41.67% of the non-Japanese patients. In conclusion, this study showed that high levels of HTLV-1 PVL was intrinsicaly associated with the development of HAM/TSP. A higher HTLV-1 PVL and IL10 levels found in non-Japanese ACs over 60 years old, which compared with the Japanese group depicts that the ethnic background may interfere in the host immune status. More researches also need to be undertaken regarding the host genetic background to better understand the low frequency of HAM/TSP in Japanese HTLV-1-infected individuals.</description><subject>Aged</subject><subject>Asian Continental Ancestry Group</subject><subject>Biology and life sciences</subject><subject>Brazil - epidemiology</subject><subject>Care and treatment</subject><subject>Carrier State - epidemiology</subject><subject>Carrier State - immunology</subject><subject>Carrier State - virology</subject><subject>Carriers</subject><subject>Case-Control Studies</subject><subject>Central nervous system diseases</subject><subject>Cohort Studies</subject><subject>Correlation</subject><subject>Cytokines</subject><subject>Cytokines - blood</subject><subject>Emigrants and Immigrants</subject><subject>Etiology (Medicine)</subject><subject>Female</subject><subject>Gene expression</subject><subject>Hereditary spastic paraplegia</subject><subject>HTLV-I (Virus)</subject><subject>HTLV-I Infections - epidemiology</subject><subject>HTLV-I Infections - immunology</subject><subject>HTLV-I Infections - virology</subject><subject>Human T-lymphotropic virus 1 - isolation &amp; purification</subject><subject>Human T-lymphotropic virus 1 - pathogenicity</subject><subject>Humans</subject><subject>Immigrants</subject><subject>Immune status</subject><subject>Immunology</subject><subject>Infections</subject><subject>Interleukin 1</subject><subject>Interleukin 10</subject><subject>Interleukin 17</subject><subject>Interleukin 2</subject><subject>Interleukin 4</subject><subject>Interleukin 6</subject><subject>Japan - ethnology</subject><subject>Low frequencies</subject><subject>Male</subject><subject>Medicine and Health Sciences</subject><subject>Middle Aged</subject><subject>Minority &amp; ethnic groups</subject><subject>Noncitizens</subject><subject>Paraparesis, Tropical Spastic - epidemiology</subject><subject>Paraparesis, Tropical Spastic - immunology</subject><subject>Paraparesis, Tropical Spastic - virology</subject><subject>Pathogenesis</subject><subject>Patients</subject><subject>People and places</subject><subject>Polymerase chain reaction</subject><subject>Prospective Studies</subject><subject>Proviruses - isolation &amp; purification</subject><subject>Research and Analysis Methods</subject><subject>Serum levels</subject><subject>Spastic paraparesis</subject><subject>Spinal cord</subject><subject>Studies</subject><subject>Syphilis</subject><subject>Tropical spastic paraparesis</subject><subject>Tumor necrosis factor</subject><subject>Tumor necrosis factor-TNF</subject><subject>Viral Load</subject><subject>γ-Interferon</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNqNk8Fu1DAQhiMEoqXwBggiISE4ZImdrO1ckMoK6KKVKkHp1Zokk6yXxF7spFCOPDnOblo2qAfkgy37m9-efzxB8JTEM5Jw8mZjequhmW2NxllMeCpYdi84JllCI0bj5P7B-ih45NwmjueJYOxhcERFwlmc0ePg9-K6M9-UxnBrTaUaDEGXw_pKWWjCxkAZQmt0HX6CLWh0GKq2VbUF3bkdq42O_p7pCosOy_CH6tbh2cXqMiJ-M4QdhrrEVhUhWITQVOE7C79U8zh4UEHj8Mk4nwRfP7y_WJxFq_OPy8XpKipYRruIiIxRTismuM81Z0AZyeacMyx9hozwIk84zeM8p5izWKSczlMAoHnJOYciOQme73W3jXFytM9JIkRKiPAKnljuidLARm6tasFeSwNK7jaMrSXYThUNypRikWCFHASmNENRMMzyPKsQeII89lpvx9v6vMWyQN15Qyei0xOt1rI2V9LXKE5o4gVejQLWfO_RdbJVrsCm8U6bfv_ulBFBUo---Ae9O7uRqsEn4Ctl_L3FICpPUyHmJMv4oDW7g_JjVzr_14ZPMg14PQnwTIc_uxp65-Tyy-f_Z88vp-zLA3aN0HRrZ5q-U0a7KZjuwcIa5yxWtyaTWA6tcuOGHFpFjq3iw54dFug26KY3kj9kDw5w</recordid><startdate>20170404</startdate><enddate>20170404</enddate><creator>Domingos, João Américo</creator><creator>Soares, Luana Silva</creator><creator>Bandeira, Larissa M</creator><creator>Bonin, Camila Mareti</creator><creator>Vicente, Ana C P</creator><creator>Zanella, Louise</creator><creator>Puga, Marco Antonio Moreira</creator><creator>Tozetti, Inês Aparecida</creator><creator>Motta-Castro, Ana Rita Coimbra</creator><creator>da Cunha, Rivaldo Venâncio</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20170404</creationdate><title>Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil</title><author>Domingos, João Américo ; Soares, Luana Silva ; Bandeira, Larissa M ; Bonin, Camila Mareti ; Vicente, Ana C P ; Zanella, Louise ; Puga, Marco Antonio Moreira ; Tozetti, Inês Aparecida ; Motta-Castro, Ana Rita Coimbra ; da Cunha, Rivaldo Venâncio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aged</topic><topic>Asian Continental Ancestry Group</topic><topic>Biology and life sciences</topic><topic>Brazil - epidemiology</topic><topic>Care and treatment</topic><topic>Carrier State - epidemiology</topic><topic>Carrier State - immunology</topic><topic>Carrier State - virology</topic><topic>Carriers</topic><topic>Case-Control Studies</topic><topic>Central nervous system diseases</topic><topic>Cohort Studies</topic><topic>Correlation</topic><topic>Cytokines</topic><topic>Cytokines - blood</topic><topic>Emigrants and Immigrants</topic><topic>Etiology (Medicine)</topic><topic>Female</topic><topic>Gene expression</topic><topic>Hereditary spastic paraplegia</topic><topic>HTLV-I (Virus)</topic><topic>HTLV-I Infections - epidemiology</topic><topic>HTLV-I Infections - immunology</topic><topic>HTLV-I Infections - virology</topic><topic>Human T-lymphotropic virus 1 - isolation &amp; purification</topic><topic>Human T-lymphotropic virus 1 - pathogenicity</topic><topic>Humans</topic><topic>Immigrants</topic><topic>Immune status</topic><topic>Immunology</topic><topic>Infections</topic><topic>Interleukin 1</topic><topic>Interleukin 10</topic><topic>Interleukin 17</topic><topic>Interleukin 2</topic><topic>Interleukin 4</topic><topic>Interleukin 6</topic><topic>Japan - ethnology</topic><topic>Low frequencies</topic><topic>Male</topic><topic>Medicine and Health Sciences</topic><topic>Middle Aged</topic><topic>Minority &amp; ethnic groups</topic><topic>Noncitizens</topic><topic>Paraparesis, Tropical Spastic - epidemiology</topic><topic>Paraparesis, Tropical Spastic - immunology</topic><topic>Paraparesis, Tropical Spastic - virology</topic><topic>Pathogenesis</topic><topic>Patients</topic><topic>People and places</topic><topic>Polymerase chain reaction</topic><topic>Prospective Studies</topic><topic>Proviruses - isolation &amp; purification</topic><topic>Research and Analysis Methods</topic><topic>Serum levels</topic><topic>Spastic paraparesis</topic><topic>Spinal cord</topic><topic>Studies</topic><topic>Syphilis</topic><topic>Tropical spastic paraparesis</topic><topic>Tumor necrosis factor</topic><topic>Tumor necrosis factor-TNF</topic><topic>Viral Load</topic><topic>γ-Interferon</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Domingos, João Américo</creatorcontrib><creatorcontrib>Soares, Luana Silva</creatorcontrib><creatorcontrib>Bandeira, Larissa M</creatorcontrib><creatorcontrib>Bonin, Camila Mareti</creatorcontrib><creatorcontrib>Vicente, Ana C P</creatorcontrib><creatorcontrib>Zanella, Louise</creatorcontrib><creatorcontrib>Puga, Marco Antonio Moreira</creatorcontrib><creatorcontrib>Tozetti, Inês Aparecida</creatorcontrib><creatorcontrib>Motta-Castro, Ana Rita Coimbra</creatorcontrib><creatorcontrib>da Cunha, Rivaldo Venâncio</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Opposing Viewpoints Resource Center</collection><collection>Science (Gale in Context)</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>ProQuest Nursing and Allied Health Journals</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>ProQuest_Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database (Proquest)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agriculture Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>ProQuest Biological Science Journals</collection><collection>Engineering Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest advanced technologies &amp; aerospace journals</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials science collection</collection><collection>ProQuest Publicly Available Content database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Domingos, João Américo</au><au>Soares, Luana Silva</au><au>Bandeira, Larissa M</au><au>Bonin, Camila Mareti</au><au>Vicente, Ana C P</au><au>Zanella, Louise</au><au>Puga, Marco Antonio Moreira</au><au>Tozetti, Inês Aparecida</au><au>Motta-Castro, Ana Rita Coimbra</au><au>da Cunha, Rivaldo Venâncio</au><au>Jacobson, Steven</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2017-04-04</date><risdate>2017</risdate><volume>12</volume><issue>4</issue><spage>e0174869</spage><epage>e0174869</epage><pages>e0174869-e0174869</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The lifetime risk of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) development differs among ethnic groups. To better understand these differences, this prospective cohort study was conducted to investigate the cytokine profile and the HTLV-1 proviral load (PVL) in Japanese and non-Japanese populations with HAM/TSP and asymptomatic carriers (ACs). The serum IL-2, IL-4, IL-6, IL-10, IL-17, TNF-α, and IFN-γ levels were quantified using the Cytometric Bead Array in 40 HTLV-1-infected patients (11 HAM/TSP and 29 ACs) and 18 healthy controls (HCs) in Brazil. Among ACs, 15 were Japanese descendants and 14 were non-Japanese. Of 11 patients with HAM/TSP, only one was a Japanese descendant. The HTLV-1 PVL was quantified by real-time PCR. The HTLV-1 PVL was 2.7-fold higher in HAM/TSP patients than ACs. Regardless of the clinical outcome, the PVL was significantly higher in patients younger than 60 years than older patients. The HAM/TSP and ACs had higher IL-10 serum concentrations than that of HCs. The ACs also showed higher IL-6 serum levels than those of HCs. According to age, the IL-10 and IL-6 levels were higher in ACs non-Japanese patients older than 60 years. HAM/TSP patients showed a positive correlation between IL-6 and IL-17 and a negative correlation between the PVL and IL-17 and IFN-γ. In the all ACs, a significant positive correlation was observed between IL-2 and IL-17 and a negative correlation was detected between IL-10 and TNF-α. Only 6.25% of the Japanese patients were symptomatic carriers, compared with 41.67% of the non-Japanese patients. In conclusion, this study showed that high levels of HTLV-1 PVL was intrinsicaly associated with the development of HAM/TSP. A higher HTLV-1 PVL and IL10 levels found in non-Japanese ACs over 60 years old, which compared with the Japanese group depicts that the ethnic background may interfere in the host immune status. More researches also need to be undertaken regarding the host genetic background to better understand the low frequency of HAM/TSP in Japanese HTLV-1-infected individuals.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>28376092</pmid><doi>10.1371/journal.pone.0174869</doi><tpages>e0174869</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1932-6203
ispartof PloS one, 2017-04, Vol.12 (4), p.e0174869-e0174869
issn 1932-6203
1932-6203
language eng
recordid cdi_plos_journals_1884118361
source PubMed Central; ProQuest Publicly Available Content database
subjects Aged
Asian Continental Ancestry Group
Biology and life sciences
Brazil - epidemiology
Care and treatment
Carrier State - epidemiology
Carrier State - immunology
Carrier State - virology
Carriers
Case-Control Studies
Central nervous system diseases
Cohort Studies
Correlation
Cytokines
Cytokines - blood
Emigrants and Immigrants
Etiology (Medicine)
Female
Gene expression
Hereditary spastic paraplegia
HTLV-I (Virus)
HTLV-I Infections - epidemiology
HTLV-I Infections - immunology
HTLV-I Infections - virology
Human T-lymphotropic virus 1 - isolation & purification
Human T-lymphotropic virus 1 - pathogenicity
Humans
Immigrants
Immune status
Immunology
Infections
Interleukin 1
Interleukin 10
Interleukin 17
Interleukin 2
Interleukin 4
Interleukin 6
Japan - ethnology
Low frequencies
Male
Medicine and Health Sciences
Middle Aged
Minority & ethnic groups
Noncitizens
Paraparesis, Tropical Spastic - epidemiology
Paraparesis, Tropical Spastic - immunology
Paraparesis, Tropical Spastic - virology
Pathogenesis
Patients
People and places
Polymerase chain reaction
Prospective Studies
Proviruses - isolation & purification
Research and Analysis Methods
Serum levels
Spastic paraparesis
Spinal cord
Studies
Syphilis
Tropical spastic paraparesis
Tumor necrosis factor
Tumor necrosis factor-TNF
Viral Load
γ-Interferon
title Cytokine profile and proviral load among Japanese immigrants and non-Japanese infected with HTLV-1 in a non-endemic area of Brazil
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T04%3A38%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Cytokine%20profile%20and%20proviral%20load%20among%20Japanese%20immigrants%20and%20non-Japanese%20infected%20with%20HTLV-1%20in%20a%20non-endemic%20area%20of%20Brazil&rft.jtitle=PloS%20one&rft.au=Domingos,%20Jo%C3%A3o%20Am%C3%A9rico&rft.date=2017-04-04&rft.volume=12&rft.issue=4&rft.spage=e0174869&rft.epage=e0174869&rft.pages=e0174869-e0174869&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0174869&rft_dat=%3Cgale_plos_%3EA488519974%3C/gale_plos_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c692t-1896272f687748b6a26195776ed203617cb372b0bb2eb60847254aaa2bd777ac3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1884118361&rft_id=info:pmid/28376092&rft_galeid=A488519974&rfr_iscdi=true