2.Review on clinical research progress of immunotherapy in liver cancer
Shi-jia YAN ; Xian-ya LIU ; Guo-hui WAN
Acta Pharmaceutica Sinica 2019;54(10):1749-1754
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors, which is characterized by complex pathogenesis, inconspicuous early symptoms, rapid progress and poor prognosis. Immunotherapy and targeted therapy are important methods to treat advanced and metastatic liver cancer in recent years. With the FDA's approval of sorafenib and other tyrosine kinase inhibitors and programmed cell death protein 1 and cytotoxic T lymphocyte-associated antigen-4 immune checkpoint inhibitors for the treatment of liver cancer, great progress has been made in single-agent therapy and combination therapy, bringing a new turning point for the improvement of survival rate of patients with advanced liver cancer. However, the mechanism of immunotherapy and drug resistance is still unclear, and its clinical application combined with targeted and other therapies is still under research, which needs to be further explored by researchers. In this paper, the clinical research progress of immunotherapy combined with other therapies in advanced hepatocellular carcinoma was reviewed, in order to grasp the current development trend of the treatment of hepatocellular carcinoma and provide reference for the further development direction of immunotherapy.
3.Influence of Zea mays L. saponin (ZMLS) on ultrastructure of kidney and pancreas in diabetes rats induced by streptozocin.
Ming-San MIAO ; Gui-Lan ZHANG ; Yan-Yan MIAO ; Jing-Jing SHI ; Hui-Li LIU
China Journal of Chinese Materia Medica 2008;33(10):1179-1183
OBJECTIVETo discuss the effect of Zea mays L. saponin (ZMLS) on ultrastructure of kidney and pancreas in the diabetes rats induced by streptozocin.
METHODThe diabetic rat model was established by injections of STZ, blood glucose, the ultrastructure of the kidney and pancreas were observed.
RESULTCompared with the model group, the large, middle-dose ZMLS groups and melbinum group could remarkably decrease the blood glucose (P < 0.01), the large, middle, small-dose ZMLS groups could remarkably prevent the pancreatic islet beta-cell from the injury induced by Streptozotocin. Melbinum and the large, middle-dose ZMLS groups could remarkably increase mitochondrial Vv, deltam and euchromatin Vv (P < 0.01), and significantly decrease the delta, Nucleus delta and heterochromatin Vv (P < 0.01). The small dose of ZMLS obviously increases mitochondrial Vv (P < 0.05).
CONCLUSIONZMLS showed good effect on decreasing blood glucose and protection action on the kidney and pancreas injury of induced by STZ.
Animals ; Blood Glucose ; drug effects ; Diabetes Mellitus ; drug therapy ; Diabetes Mellitus, Experimental ; drug therapy ; Humans ; Kidney ; drug effects ; ultrastructure ; Male ; Pancreas ; drug effects ; ultrastructure ; Plant Extracts ; administration & dosage ; Rats ; Rats, Wistar ; Saponins ; administration & dosage ; Streptozocin ; Zea mays ; chemistry
4.Effects of docosahexaenoic acid on cell apoptosis, invasion and migration of cervical cancer cells in vitro.
Cui YANG ; Guang-Ping ZHANG ; Yong-Ning CHEN ; Fan-Liang MENG ; Shi-San LIU ; Shi-Peng GONG
Journal of Southern Medical University 2016;36(6):848-856
OBJECTIVETo investigate the effect of docosahexaenoic acid (DHA) on apoptosis, migration and invasion of cervical cancer cell lines.
METHODScervical cancer cell lines Hela and Siha in logarithmic phase were treated different concentrations of DHA. The morphological changes of the cells were observed microscopically and cell apoptosis was observed using Hoechst 33258 fluorescent staining. MTT assay was used to evaluate the effect of DHA in suppressing cell growth, and flow cytometry was employed to analyze the changes of cell apoptotic rate following DHA stimulations. Wound healing assay and Transwell migration assay were used to evaluate the migration of the cell lines. The expression levels of Bax, Bcl-2 cleaved caspase3, MMP-9 and VEGF proteins were detected by Western blotting.
RESULTSDHA exposure of the cells caused obvious morphological changes and dose-dependently increased the number of apoptotic bodies in the cells. MTT assay showed that DHA inhibited the growth of the cancer cells in a time- and concentration-dependent manner. DHA also effectively suppressed migration and invasion of the cancer cells. The cells exposed to DHA showed significantly down-regulation of Bcl-2, MMP-9 and VEGF proteins and up-regulation of cleaved-caspase 3 and Bax.
CONCLUSIONDHA can promote cervical carcinoma cell apoptosis by down-regulating the anti-apoptotic proteins Bax, Bcl-2 and cleaved-caspase3 and suppress cell invasion by decreasing MMP-9 and VEGF expressions.
Apoptosis ; Caspase 3 ; metabolism ; Cell Cycle ; Cell Line, Tumor ; drug effects ; Cell Movement ; Cell Proliferation ; Docosahexaenoic Acids ; pharmacology ; Down-Regulation ; Female ; HeLa Cells ; drug effects ; Humans ; Matrix Metalloproteinase 9 ; metabolism ; Neoplasm Invasiveness ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Up-Regulation ; Uterine Cervical Neoplasms ; pathology ; Vascular Endothelial Growth Factor A ; metabolism ; bcl-2-Associated X Protein ; metabolism
5.Diagnostic value of CA125, HE4 and Copenhagen Index in differentiating benign from malignant epithelial ovarian tumors.
Shi-Peng GONG ; Yong-Ning CHEN ; Ya-di ZHANG ; Wei YAO ; Li CHEN ; Shi-San LIU ; Huan WU
Journal of Southern Medical University 2017;37(5):628-632
OBJECTIVETo analyze diagnostic value of Copenhagen Index based on pretreatment serum CA125, HE4 and age in differentiating benign and malignant epithelial ovarian tumors.
METHODSThe clinical data were analyzed for 208 consecutive patients with epithelial ovarian tumors (including 100 with malignant and 108 with benign tumors) treated in our department between September, 2014 and September, 2016. The receiver-operating characteristic curve was drawn based on the golden standard of pathological diagnosis for calculation of the diagnostic sensitivity and specificity of CA125, HE4 and the Copenhagen Index.
RESULTSIn the overall cases, early stage cases and advanced stage cases, the prediction probabilities of CA125, HE4 and Copenhagen Index were all significantly higher for malignant than in benign tumors (P<0.001). The sensitivities of CA125, HE4, Copenhagen Index for differentiating benign and malignant tumors were 81.0%, 86.0% and 91.0% in the overall cases, 64.0%, 68.0% and 72.0% in early stage cases, and 86.7%, 92.0% and 97.3% in advanced stage cases, and their diagnostic specificities were 88.0%, 93.5% and 96.3%, respectively. Copenhagen Index had the highest diagnostic sensitivity (but not in early stage cases) and specificity followed by HE4 and then by CA125 (P<0.001) (P>0.05).
CONCLUSIONCopenhagen Index combined with CA125, HE4 and age hase better diagnostic value than HE4 or CA125 alone for differentiation between benign and malignant epithelial ovarian tumors, and can be used clinically to improve the early diagnostic rate of epithelial ovarian cancer.
6.Reinfection of HBV and its possible mechanism in patients with liver-transplantation.
Qing FANG ; Lian-san ZHAO ; Tao-you ZHOU ; Jun LIU ; Li LIU ; Hong TANG ; Shi-chun LU
Chinese Journal of Hepatology 2005;13(3):225-227
Adult
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Female
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Hepatitis B, Chronic
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complications
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surgery
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Humans
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Liver Cirrhosis
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etiology
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surgery
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Liver Neoplasms
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surgery
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virology
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Liver Transplantation
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Male
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Middle Aged
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Postoperative Complications
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etiology
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Recurrence
7.Study on exons 3 and 4 of alpha-synuclein gene in Chinese familial Parkinson disease patients.
Xi CHEN ; Yue-ting LIU ; Jin-ru LI ; Ling CHEN ; Yan-ming XU ; Yong-hui PAN ; Xiao-hong MENG ; Shi-hui XING
Chinese Journal of Medical Genetics 2003;20(6):536-538
OBJECTIVETo study the relationship of Chinese familial Parkinson disease with alpha-synuclein gene.
METHODSPolymerase chain reaction-single strand conformational polymorphism (PCR-SSCP) and polymerase chain reaction-heteroduplex analysis(PCR-HA) were employed to detect the abnormal mobilization in the familial Parkinson disease and sporadic Parkinson disease patients, then it was verified by gene sequencing.
RESULTSNo mutation was found in alpha-synuclein gene exons 3 and 4 by PCR-SSCP together with PCR-HA. An inserted c and an inserted t were found in intron 4, position 23 and position 67 respectively.
CONCLUSION(1) Exons 3 and 4 of alpha-synuclein gene are not the mutational hot spots of Chinese familial Parkinson disease. (2) Two polymorphisms were found in intron 4 of alpha-synuclein gene. They are 23 ins c and 67 ins t.
Adult ; Aged ; Exons ; Female ; Heteroduplex Analysis ; Humans ; Male ; Middle Aged ; Mutation ; Nerve Tissue Proteins ; genetics ; Parkinson Disease ; genetics ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Synucleins ; alpha-Synuclein
8.Prospective study on the use of nickel-titanium temperature-dependent memory-shape device (CAR27) for anastomosis after colorectal surgery.
Xin-Xiang LI ; San-Jun CAI ; Jin GAO ; De-Bing SHI ; Wei-Li GU ; Zu-Qing GUAN ; Ye XU ; Fang-Qi LIU ; Li-Yong HUANG
Chinese Journal of Gastrointestinal Surgery 2011;14(5):330-332
OBJECTIVETo prospectively evaluate the safety and efficacy of nickel- titanium temperature-dependent memory-shape device(CAR27) for colorectal anastomosis.
METHODSSixty colorectal cancer patients were randomly divided into two groups and received colorectal anastomosis with CAR27 or traditional stapling device. Complications, bowel function return, and the extrusion of anastomosis ring were prospectively monitored.
RESULTSBoth CAR27 and stapler group had one case of anastomotic leakage. Other complications such as stricture or obstruction were not found. Time for anastomosis of the two groups were (10.1±1.2) minutes and (11.2±2.1) minutes respectively. Time to first flatus was(3.2±1.2) days and (3.5±1.4) days respectively. Time to food intake resumption was (4.0±1.4) days and (4.3±1.3) days respectively. The differences above between the two groups were not statistically significant(P>0.05). The ring was expelled with stool within 7-16 days. The two groups were similar in operative time and the return of bowel function.
CONCLUSIONCAR27 is safe and simple for colorectal anastomosis.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anastomosis, Surgical ; instrumentation ; Colorectal Neoplasms ; surgery ; Colorectal Surgery ; instrumentation ; Female ; Humans ; Male ; Middle Aged ; Nickel ; Prospective Studies ; Titanium ; Young Adult
9.Molecular biological identification of Batai virus isolated in China.
Shi-hong FU ; Xiao-hong SUN ; Huan-yu WANG ; Yu-xi CAO ; Huan-qin WANG ; Wei-bin LIU ; San-ju TAO ; Guo-dong LIANG
Chinese Journal of Experimental and Clinical Virology 2005;19(4):331-334
BACKGROUNDTo study the molecular characteristics of YN92-4 strain isolated from mosquitoes in Yunnan Province and define its classification.
METHODSThe S segment of YN92-4 strain was amplified and sequenced by 2 different sets of primers. The phylogenic tree of S fragment was constructed by Phylip bio-software. The amino acid sequences of N and NSs proteins were also studied.
RESULTSYN92-4 strain could be amplified by 2 sets of primers respectively, S segment showed a highest homology with Batai virus (X73464), reached 96.4%, the homology of protein N and NSs amio-acid sequence with Batai virus was 99.1% and 98% respectively.
CONCLUSIONThe YN92-4 strain belongs to Batai virus, this is the first report of molecular biological identification of Batai virus in China.
Amino Acid Sequence ; Animals ; Bunyamwera virus ; classification ; genetics ; isolation & purification ; China ; Culicidae ; virology ; DNA, Complementary ; chemistry ; genetics ; Molecular Sequence Data ; Phylogeny ; RNA, Viral ; genetics ; isolation & purification ; Reverse Transcriptase Polymerase Chain Reaction ; Sequence Analysis, DNA ; Sequence Homology, Amino Acid
10.Synthesis of 2-hydroxyl-5-butyramidobenzoic acid and its effect on acetic acid-induced colitis in rats.
Rui-cai SHI ; Jian-feng XING ; Zhao-guo LIU ; Zhi-zhao YUAN ; San-qi ZHANG ; Xiao-li BIAN ; Ai-guo ZENG
Journal of Southern Medical University 2009;29(9):1843-1845
OBJECTIVETo study the method for synthesis of 2-hydroxyl-5- butyramidobenzoic acid and test its effect on acetic acid-induced colitis in rats.
METHODS2-hydroxyl-5-butyramidobenzoic acid was synthesized from 5-aminosalicylic acid and butyric acid by amidation, esterification and hydrolization. The effect of 2-hydroxyl-5-butyramidobenzoic acid on acetic acid enema-induced colitis in rats was investigated.
RESULTSThe structure of 2-hydroxyl-5-butyramidobenzoic acid was identified by IR and 1H-NMR. After treatment with acetic acid, the colon mucosal damage index (CMDI), fecal occult blood (OB) test, and activity of myelperoxidase (MPO) increased significantly in the rats as compared to the control levels. 2-hydroxyl-5- butyramidobenzoic acid obviously reduced the CMDI and OB, and reduced the level of MPO in the rats with colitis.
CONCLUSIONThe synthesis of 2-hydroxyl-5-butyramidobenzoic acid requires only mild conditions with simple procedures, and the synthesized 2-hydroxyl-5-butyramidobenzoic acid shows obvious therapeutic effects on mucosal damage of in rats with acetic acid-induced colitis.
Acetic Acid ; Aminobenzoates ; chemical synthesis ; chemistry ; pharmacology ; therapeutic use ; Animals ; Colitis, Ulcerative ; chemically induced ; drug therapy ; Male ; Protective Agents ; chemical synthesis ; pharmacology ; therapeutic use ; Rats ; Rats, Sprague-Dawley ; Salicylates