Alterations of actin cytoskeleton and arterial protein level in patients with obstructive jaundice

Vascular hypo-responsiveness to vasopressors in patients with obstructive jaundice (OJ) is a common anesthetic event, which leads to perioperative complications and increased mortality. The cause of this clinical issue remains unclear. In this study, we estimated the actin cytoskeleton and arterial...

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Bibliographic Details
Published in:Genetics and molecular biology 2022-01, Vol.45 (3), p.e20210419
Main Authors: Wang, Hong-Qian, Meng, Xiao-Yan, Zhang, Jin-Min, Chen, Jia-Ying, Zhang, Bao-Hua, Wu, Fei-Xiang
Format: Article
Language:English
Subjects:
Actin
Anesthesia
Aorta
artery
Bile ducts
BIOCHEMISTRY & MOLECULAR BIOLOGY
Cholecystitis
Complications
Cytoskeleton
Electrophoresis
GENETICS & HEREDITY
Hemangioma
hemodynamic changes
Human and Medical Genetics
Jaundice
Mass spectrometry
Mass spectroscopy
Noradrenaline
Norepinephrine
obstructive jaundice
Pancreatic carcinoma
Patients
Proteins
Proteomics
Reactivity
Tumors
Vascular hypo-reactivity
Veins & arteries
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Summary:Vascular hypo-responsiveness to vasopressors in patients with obstructive jaundice (OJ) is a common anesthetic event, which leads to perioperative complications and increased mortality. The cause of this clinical issue remains unclear. In this study, we estimated the actin cytoskeleton and arterial protein level in the artery of OJ patients by proteomic analysis. Ten patients with OJ due to bile duct diseases or pancreatic head carcinoma were enrolled, while another ten non-jaundice patients with chronic cholecystitis or liver hemangioma as the control group. Vascular reactivity to noradrenaline was measured before anesthesia on the day of surgery. Artery samples in adjacent tissues of removed tumor were collected and evaluated by 2-dimensional electrophoresis. Proteins with differential expression were detected by MALDI-TOF mass spectrometry with immunoblot confirmation. The results confirmed the phenomenon of vascular hypo-reactivity in OJ patients as suppressed aortic response to noradrenaline were existed in these patients. We also found that actin cytoskeleton and several actin-binding proteins were up- or down-regulated in the artery of OJ patients. These proteins changed in OJ patents might be the basic mechanism of vascular hypo-reactivity, further studies to uncover the role of these proteins in OJ is critical for clinical treatment of these patients.
ISSN:1415-4757
1678-4685
1678-4685
DOI:10.1590/1678-4685-GMB-2021-0419