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Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria
Bacterial cancer therapy (BCT) approaches have been extensively investigated because bacteria can show unique features of strong tropism for cancer, proliferation inside tumors, and antitumor immunity, while bacteria are also possible agents for drug delivery. Despite the rapidly increasing number o...
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Published in: | Nuclear medicine and molecular imaging 2021, 55(1), , pp.7-14 |
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description | Bacterial cancer therapy (BCT) approaches have been extensively investigated because bacteria can show unique features of strong tropism for cancer, proliferation inside tumors, and antitumor immunity, while bacteria are also possible agents for drug delivery. Despite the rapidly increasing number of preclinical studies using BCT to overcome the limitations of conventional cancer treatments, very few BCT studies have advanced to clinical trials. In patients undergoing BCT, the precise localization and quantification of bacterial density in different body locations is important; however, most clinical trials have used subjective clinical signs and invasive sampling to confirm bacterial colonization. There is therefore a need to improve the visualization of bacterial densities using noninvasive and repetitive in vivo imaging techniques that can facilitate the clinical translation of BCT. In vivo optical imaging techniques using bioluminescence and fluorescence, which are extensively employed to image the therapeutic process of BCT in small animal research, are hard to apply to the human body because of their low penetrative power. Thus, new imaging techniques need to be developed for clinical trials. In this review, we provide an overview of the various in vivo bacteria-specific imaging techniques available for visualizing tumor-treating bacteria in BCT studies. |
doi_str_mv | 10.1007/s13139-021-00689-4 |
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Despite the rapidly increasing number of preclinical studies using BCT to overcome the limitations of conventional cancer treatments, very few BCT studies have advanced to clinical trials. In patients undergoing BCT, the precise localization and quantification of bacterial density in different body locations is important; however, most clinical trials have used subjective clinical signs and invasive sampling to confirm bacterial colonization. There is therefore a need to improve the visualization of bacterial densities using noninvasive and repetitive in vivo imaging techniques that can facilitate the clinical translation of BCT. In vivo optical imaging techniques using bioluminescence and fluorescence, which are extensively employed to image the therapeutic process of BCT in small animal research, are hard to apply to the human body because of their low penetrative power. Thus, new imaging techniques need to be developed for clinical trials. 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In this review, we provide an overview of the various in vivo bacteria-specific imaging techniques available for visualizing tumor-treating bacteria in BCT studies.</description><subject>Bacteria</subject><subject>Bioluminescence</subject><subject>Cancer</subject><subject>Cardiology</subject><subject>Clinical trials</subject><subject>Fluorescence</subject><subject>Imaging</subject><subject>Imaging techniques</subject><subject>In vivo methods and tests</subject><subject>Medical imaging</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Nuclear Medicine</subject><subject>Oncology</subject><subject>Orthopedics</subject><subject>Radiology</subject><subject>Review</subject><subject>Tropism</subject><subject>방사선과학</subject><issn>1869-3474</issn><issn>1869-3482</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kUtP3DAUha2qCBDwB1hUkbppFynXj4ntTSU66mMkEAgNa8txbkIgiamdVOq_r2cCU9oF3lzL9zvHvj6EnFL4RAHkWaSccp0DozlAoXQu3pBDqgqdc6HY291eigNyEuM9pMWZBi73yQHnhUiYOCTLG3Q4jNl18E3AGLN2yMY7zC59h27qbMhWvW3aocl8na2n3od8HdCOm5Mv1o0YWntM9mrbRTx5qkfk9tvX9fJHfnH1fbU8v8jdAtSYK76QVSVdWSDHunQlAi4qlK5QVNsCKWPcFlBxxjRDxJLKCjQXVUU1Y7LmR-Tj7DuE2jy41njbbmvjzUMw5zfrldGSS6Z4Yj_P7ONU9lhtZgy2M4-h7W34vVX-2xnau-Tzy0ilKEidDD48GQT_c8I4mr6NDrvODuinaJjQIqFyi77_D733UxjSVyRKaQAtFSSKzZQLPsaA9e4xFMwmUjNHalKkZhupEUn07uUYO8lzgAngMxBTa2gw_L37Fds_dimrVQ</recordid><startdate>20210201</startdate><enddate>20210201</enddate><creator>Kang, Sae-Ryung</creator><creator>Min, Jung-Joon</creator><general>Springer Singapore</general><general>Springer Nature B.V</general><general>대한핵의학회</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><scope>ACYCR</scope><orcidid>https://orcid.org/0000-0001-6358-2798</orcidid><orcidid>https://orcid.org/0000-0003-0172-5508</orcidid></search><sort><creationdate>20210201</creationdate><title>Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria</title><author>Kang, Sae-Ryung ; Min, Jung-Joon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c508t-8357dd7cb6e3efbcbe0e5de7c6819a6e1223a60d32292eeeb17d0934dd19227f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Bacteria</topic><topic>Bioluminescence</topic><topic>Cancer</topic><topic>Cardiology</topic><topic>Clinical trials</topic><topic>Fluorescence</topic><topic>Imaging</topic><topic>Imaging techniques</topic><topic>In vivo methods and tests</topic><topic>Medical imaging</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Nuclear Medicine</topic><topic>Oncology</topic><topic>Orthopedics</topic><topic>Radiology</topic><topic>Review</topic><topic>Tropism</topic><topic>방사선과학</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kang, Sae-Ryung</creatorcontrib><creatorcontrib>Min, Jung-Joon</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>Korean Citation Index (Open Access)</collection><jtitle>Nuclear medicine and molecular imaging</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kang, Sae-Ryung</au><au>Min, Jung-Joon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria</atitle><jtitle>Nuclear medicine and molecular imaging</jtitle><stitle>Nucl Med Mol Imaging</stitle><addtitle>Nucl Med Mol Imaging</addtitle><date>2021-02-01</date><risdate>2021</risdate><volume>55</volume><issue>1</issue><spage>7</spage><epage>14</epage><pages>7-14</pages><issn>1869-3474</issn><eissn>1869-3482</eissn><abstract>Bacterial cancer therapy (BCT) approaches have been extensively investigated because bacteria can show unique features of strong tropism for cancer, proliferation inside tumors, and antitumor immunity, while bacteria are also possible agents for drug delivery. 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subjects | Bacteria Bioluminescence Cancer Cardiology Clinical trials Fluorescence Imaging Imaging techniques In vivo methods and tests Medical imaging Medicine Medicine & Public Health Nuclear Medicine Oncology Orthopedics Radiology Review Tropism 방사선과학 |
title | Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria |
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