1.Expression and significance of SCIN in breast cancer tissue
Chenqin LI ; Biao WU ; Jia ZHU ; Dongdi WU ; Tiantian QI ; Lingzhi JIANG ; Renhong TANG
Chinese Journal of Endocrine Surgery 2019;13(4):324-327
Objective To investigate the expression of Scinderin(SCIN myoprotein) in breast cancer tissues and adjacent tissues,and to explore the relationship between the expression of Scinderin and different molecular subtypes of breast cancer as well as the clinical factors.Methods Immunohistochemical staining method was used to detect the expression of SCIN in 120 cases of breast carcinoma and 30 adjacent tissues.The relation between SCIN expression in breast cancer tissue and molecular subtypes,pathologic stage,age,tumor size,lymph node metastasis was analyzed.Results SCIN expression level in breast cancer tissue was lower than in the tissues adjacent to carcinoma (6.06±3.32 vs 7.77±3.32,P<0.05).SCIN expression was associated with breast cancer molecular subtypes (P<0.05),and it was irrelevant with age,tumor size,histological grade,lymph node metastasis,or clinical stage (P>0.05).Conclusions The expression of SCIN in breast cancer tissues was lower than in the adjacent tissues.It is associated with breast cancer molecular subtypes.SCIN could become the protein markers of breast cancer molecular targeted therapy.
2.Mechanism of Radix Paeoniae Rubra-Radix Aconiti Lateralis in Treatment of Acute-on-chronic Liver Failure Based on Macrophage Polarization
Nianhua TAN ; Yunan CAO ; Chenqin TANG ; Jie PENG ; Bin CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(15):35-41
ObjectiveTo observe the therapeutic effect of Radix Paeoniae Rubra-Radix Aconiti Lateralis on acute-on-chronic liver failure (ACLF) rats and its effect on M1/M2 macrophage polarization. MethodMale SD rats were randomly divided into normal group, model group, positive group (lactulose, 1.8 g·kg-1) and traditional Chinese medicine (TCM) group (Radix Paeoniae Rubra-Radix Aconiti Lateralis, 5.85 g·kg-1), six in each group. The ACLF rat model was established by subcutaneous and tail vein injection of bovine serum albumin combined with intraperitoneal injection of D-galactosamine+lipopolysaccharide. Then the modeled rats were intervened with corresponding drugs for one week. The normal group and model group were given the same dose of distilled water. The histopathological changes of liver tissue were observed by hematoxylin-eosin (HE) staining. The mRNA and protein expression levels of CD86, inducible nitric oxide synthase (iNOS), CD206 and arginase 1 (Arg1) were detected by real-time polymerase chain reaction (Real-time PCR), Western blot and immunohistochemistry. ResultCompared with the conditions in the normal group, pseudolobule formation in liver tissue and morphological changes and necrosis of hepatocytes were observed in ACLF rats, accompanied by a large number of inflammatory cell infiltration. Moreover, the mRNA and protein expression levels of CD86, iNOS were up-regulated(P<0.01). Compared with the model group, the treatment groups had improved necrosis and inflammatory infiltration of hepatocytes, down-regulated mRNA and protein expression of CD86 and iNOS (P<0.01) and up-regulated mRNA and protein expression of CD206 and Arg1 (P<0.05, P<0.01), with the up regulation in the TCM group better than that in the positive group. ConclusionACLF rats had unbalanced M1/M2 macrophage polarization, and the imbalance shifted towards M1. Radix Paeoniae Rubra-Radix Aconiti Lateralis inhibited the activation of M1 macrophages and reduced the inflammatory response of liver failure by promoting the polarization of liver macrophages towards M2.
3.Study on the Mechanism of TCM Prevention and Treatment of Liver Fibrosis Based on Autophagy
Xiaoling TIAN ; Chenqin TANG ; Yu ZHANG ; Bin CHEN
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(11):3692-3703
Hepatic fibrosis(HF)is a common pathological process of many chronic liver diseases,and it is also the early reversible stage of cirrhosis.To prevent or reverse hepatic fibrosis is the key to reduce the occurrence of liver cirrhosis and liver cancer.The development of hepatic fibrosis is a complex and dynamic process involving multiple cellulars and molecular mechanisms.More and more studies have shown that dysfunction of autophagy may be an important factor leading to the progression of HF.In recent years,researchers have begun to look for drugs that can reverse HF by regulating autophagy.With the depth of study,TCM continues to make new breakthroughs in the prevention and treatment of liver fibrosis.More and more studies have confirmed that TCM can play a role in the treatment of HF by intervening in autophagy,and its effects can be summarized into two aspects:promoting autophagy(filling its deficiency)and inhibiting autophagy(damaging its excess),and finally restoring the balance of autophagy microenvironment.Thus,it has an anti-fibrosis effect.