1.Expression and clinical significance of aquaporin 1 and aquaporin 4 in human pulmonary adenocarcinoma
Yanping XIE ; Xiaohong WEN ; Zhiqiang JIANG ; Huanqin FU ; Licheng DAI ; Hui HAN
Chinese Journal of Postgraduates of Medicine 2011;34(30):2-5
ObjectiveTo explore the expression and clinical significance ofaquaporin (AQP) 1 and AQP 4 in human pulmonary adenocarcinoma H1299 cell line.MethodsH1299 cell line in human pulmonary adenocarcinoma(pulmonary adenocarcinoma group) were obtained,the expressions of AQP1 and AQP4 in mRNA level and their locations were determined in H1299 cell line respectively by semiquantitative reverse transcription polymerase chain reaction (RT-PCR) and Western blot analysis.The migration of tumor cells were observed by Matrigel invasion assay.Then normal tissues adjacent of pulmonary adenocarcinoma (above cancer line 3 cm,no tumor cell with pathological proven) were as control group.ResultsThe results of RT-PCR showed that AQP1,AQP4 mRNA was 1.030 ± 0.070 and 1.140 ± 0.190 in conlrol group,which were lower than those in pulmonary adenocarcinoma group (2.021 ± 0.250 and 2.180 ±0.180)(P<0.05 ).The results of Western blot showed AQP1,AQP4 located on the membrane of H1299 cell.Both AQPI and AQP4 mRNA expressed very high in pulmonary adenocarcinoma group,while expressed very low in control group (P<0.05).Matrigel invasion assay showed that the invasion was positively related to AQP1,AQP4(r =0.351,P < 0.05 ).ConclusionAQP1,AQP4 significantly over express in H1299 cell line,both of them phy important roles in the growth of tumor tissue and cell migration.
2.Serum biomarkers for the early diagnosis of minimal hepatic encephalopathy
Qinfu ZHANG ; Huanqin HAN ; Weiqiang ZHENG
Journal of Clinical Hepatology 2020;36(12):2819-2821
Minimal hepatic encephalopathy (MHE) refers to a state of neuropsychological or neurophysiological abnormality and normal cognitive function in patients with liver cirrhosis, which is commonly seen in patients with liver cirrhosis. Early diagnosis and treatment of MHE can improve the quality of life of patients and reduce accidental deaths. At present, Psychometric Hepatic Encephalopathy Score is mainly used for the diagnosis of MHE, but its operation is complicated and time-consuming and is affected by age and educational level, with unsatisfactory reliability in clinical diagnosis. Serum biomarkers are objective reference indicators with simple and convenient measurement and can easily be promoted in clinical practice. Potential serum biomarkers such as S100β, 3-nitrotyrosine, and arterial blood ammonia have their own advantages and disadvantages in specificity, sensitivity, and diagnostic value. This article reviews the above-mentioned serum biomarkers.
3.Effect of different antiviral drugs in reducing the risk of hepatitis B virus-related hepatocellular carcinoma
Lixian WU ; Weiqiang ZHENG ; Huanqin HAN
Journal of Clinical Hepatology 2022;38(5):1165-1168
Antiviral therapy can reduce the risk of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B. As for the first-line antiviral drugs, more studies have shown that tenofovir disoproxil fumarate may be better than entecavir in reducing the risk of HCC, especially among Asian patients; a limited number of studies have shown that tenofovir alafenamide fumarate may be better than tenofovir disoproxil fumarate in reducing the risk of HCC; interferon has a better effect than nucleos(t)ide analogues alone in reducing the risk of HCC. Among the currently available drugs, interferon combined with nucleos(t)ide analogues may be the best choice to reduce the risk of HCC in patients at a high risk of HCC. The level of evidence-based medicine is weak for comparing the effect of different drugs in reducing the risk of HCC, and randomized controlled trials are needed for further clarification. In practice, it is necessary to weigh the risk of HCC, drug tolerance and economic affordability based on the patient's basic conditions and actual situations, so as to develop individualized anti-viral strategies.
4.Immunogenic molecules associated with gut bacterial cell walls: chemical structures, immune-modulating functions, and mechanisms.
Ruopeng YIN ; Tao WANG ; Huanqin DAI ; Junjie HAN ; Jingzu SUN ; Ningning LIU ; Wang DONG ; Jin ZHONG ; Hongwei LIU
Protein & Cell 2023;14(10):776-785
Interactions between gut microbiome and host immune system are fundamental to maintaining the intestinal mucosal barrier and homeostasis. At the host-gut microbiome interface, cell wall-derived molecules from gut commensal bacteria have been reported to play a pivotal role in training and remodeling host immune responses. In this article, we review gut bacterial cell wall-derived molecules with characterized chemical structures, including peptidoglycan and lipid-related molecules that impact host health and disease processes via regulating innate and adaptive immunity. Also, we aim to discuss the structures, immune responses, and underlying mechanisms of these immunogenic molecules. Based on current advances, we propose cell wall-derived components as important sources of medicinal agents for the treatment of infection and immune diseases.
Gastrointestinal Microbiome
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Intestinal Mucosa
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Bacteria
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Immune System
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Symbiosis
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Immunity, Mucosal
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Immunity, Innate