The inducible co-activator PGC-1α plays a crucial role in adaptive thermogenesis and increases energy expenditure in brown adipose tissue(BAT). Meanwhile, chronic inflammation caused by infiltrated-macrophage in the ...The inducible co-activator PGC-1α plays a crucial role in adaptive thermogenesis and increases energy expenditure in brown adipose tissue(BAT). Meanwhile, chronic inflammation caused by infiltrated-macrophage in the white adipose tissue(WAT) is a target for the treatment of obesity. Bofutsushosan(BF), a traditional Chinese medicine composed of 17 crude drugs, has been widely used to treat obesity in China, Japan, and other Asia countries. However, the mechanism underlying anti-obesity remains to be elucidated. In the present study, we demonstrated that BF oral administration reduced the body weight of obese mice induced by high-fat diet(HFD) and alleviated the level of biochemical markers(P < 0.05), including blood glucose(Glu), total cholesterol(TC), triglyceride(TG), low density lipoprotein(LDL-C) and insulin. Our further results also indicated that oral BF administration increased the expression of PGC-1α and UCP1 in BAT. Moreover, BF also reduced the expression of inflammatory cytokines in WAT, such as tumor necrosis factor-α(TNF-α) and interleukin-6(IL-6). These findings suggested that the mechanism of BF against obesity was at least partially through increasing gene expression of PGC-1α and UCP1 for energy consumption in BAT and inhibiting inflammation in WAT.展开更多
Uncoupling protein 1(UCP1)is a proton transporter/channel residing on the inner mitochondrial membrane and is involved in cellular heat production.Using immunohistochemistry,we investigated the expression of UCP1 and ...Uncoupling protein 1(UCP1)is a proton transporter/channel residing on the inner mitochondrial membrane and is involved in cellular heat production.Using immunohistochemistry,we investigated the expression of UCP1 and UCP3 in a series of 98 patients with non-small cell lung cancer(NSCLC)treated with surgery.Expression patterns were correlated with histopathological variables,prognosis,and the expression of enzymes/proteins related to cell metabolism.Bronchial epithelium did not express UCP1 or UCP3,while alveolar cells strongly expressed UCP1.In tumors,strong expression of UCP1 and UCP3 was recorded in43/98(43.8%)and 27/98(27.6%)cases,respectively.UCP1 was significantly associated with squamous cell histology(P=0.05),whilst UCP3 was more frequently overexpressed in large cell carcinomas(P=0.08),and was inversely related to necrosis(P=0.009).In linear regression analysis,UCP1 was directly related to markers of glycolysis[hexokinase(HXKII)and phosphofructokinase(PFK1)]and anaerobic glucose metabolism[pyruvate dehydrogenase kinase(PDK1)and lactate dehydrogenase(LDH5)].UCP3 was directly linked with a glucose transporter(GLUT2),monocarboxylate transporter(MCT2),glycolysis markers(PFK1 and aldolase),and with the phosphorylation of pyruvate dehydrogenase(p PDH).Kaplan-Meier survival analysis showed that UCP3 was significantly related to poor prognosis in squamous cell carcinomas(P=0.04).UCP1 and UCP3 are overexpressed in a large subgroup of non-small cell lung tumors and their expression coincides with increased glucose absorption,intensified glycolysis,and anaerobic glucose usage.Whether UCPs are targets for therapeutic interventions in lung cancer is a hypothesis that demands further investigation.展开更多
Uncoupling protein 1(UCP1,also known as thermogenin or SLC25A7)plays an important role in the uncoupling of oxidative phosphorylation and adaptive non-shivering thermogenesis(NST).The genomic location for UCP1 is chro...Uncoupling protein 1(UCP1,also known as thermogenin or SLC25A7)plays an important role in the uncoupling of oxidative phosphorylation and adaptive non-shivering thermogenesis(NST).The genomic location for UCP1 is chromosome 4 q31.1:140,555,770--140,568,961(GRCh38/hg38)and its size is 13,192 bases split into 6 exons.In dbSNP,3650 short genetic variations of human UCP1 are documented.In this study,UCP1 serves as an example to construct polymorphism-trait networks and enable a func-tional classification.展开更多
Objective We aimed to explore how fermented barley extracts with Lactobacillus plantarum dy-1(LFBE) affected the browning in adipocytes and obese rats.Methods In vitro, 3T3-L1 cells were induced by LFBE, raw barley ex...Objective We aimed to explore how fermented barley extracts with Lactobacillus plantarum dy-1(LFBE) affected the browning in adipocytes and obese rats.Methods In vitro, 3T3-L1 cells were induced by LFBE, raw barley extraction(RBE) and polyphenol compounds(PC) from LFBE to evaluate the adipocyte differentiation.In vivo, obese SD rats induced by high fat diet(HFD) were randomly divided into three groups treated with oral gavage:(a) normal control diet with distilled water,(b) HFD with distilled water,(c) HFD with 800 mg LFBE/kg body weight(bw).Results In vitro, LFBE and the PC in the extraction significantly inhibited adipogenesis and potentiated browning of 3T3-L1 preadipocytes, rather than RBE.In vivo, we observed remarkable decreases in the body weight, serum lipid levels, white adipose tissue(WAT) weights and cell sizes of brown adipose tissues(BAT) in the LFBE group after 10 weeks.LFBE group could gain more mass of interscapular BAT(IBAT) and promote the dehydrogenase activity in the mitochondria.And LFBE may potentiate process of the IBAT thermogenesis and epididymis adipose tissue(EAT) browning via activating the uncoupling protein 1(UCP1)-dependent mechanism to suppress the obesity.Conclusion These results demonstrated that LFBE decreased obesity partly by increasing the BAT mass and the energy expenditure by activating BAT thermogenesis and WAT browning in a UCP1-dependent mechanism.展开更多
解耦联蛋白1(uncoupling protein 1,UCP1)是线粒体内膜的核编码蛋白,主要在棕色脂肪组织(brown adipose tissue,BAT)中表达,在调节能量代谢和线粒体稳态等方面发挥重要作用。UCP1调节BAT线粒体生物合成、线粒体动力学稳态和线粒体自噬,...解耦联蛋白1(uncoupling protein 1,UCP1)是线粒体内膜的核编码蛋白,主要在棕色脂肪组织(brown adipose tissue,BAT)中表达,在调节能量代谢和线粒体稳态等方面发挥重要作用。UCP1调节BAT线粒体生物合成、线粒体动力学稳态和线粒体自噬,而三者的动态平衡有助于线粒体正常功能的发挥。本文主要对UCP1的结构与分布、UCP1调控BAT能量代谢相关机制、UCP1调控BAT线粒体稳态等方面进行综述。展开更多
基金supported by Opening Project of Shanghai Key Laboratory of Complex Prescription(Shanghai University of Traditional Chinese Medicine)(11DZ2272300)Huahai Pharmaceutical Graduate Student Innovation Fund(HH13B011)+1 种基金National Natural Science Foundation of China(No.81573484)Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
文摘The inducible co-activator PGC-1α plays a crucial role in adaptive thermogenesis and increases energy expenditure in brown adipose tissue(BAT). Meanwhile, chronic inflammation caused by infiltrated-macrophage in the white adipose tissue(WAT) is a target for the treatment of obesity. Bofutsushosan(BF), a traditional Chinese medicine composed of 17 crude drugs, has been widely used to treat obesity in China, Japan, and other Asia countries. However, the mechanism underlying anti-obesity remains to be elucidated. In the present study, we demonstrated that BF oral administration reduced the body weight of obese mice induced by high-fat diet(HFD) and alleviated the level of biochemical markers(P < 0.05), including blood glucose(Glu), total cholesterol(TC), triglyceride(TG), low density lipoprotein(LDL-C) and insulin. Our further results also indicated that oral BF administration increased the expression of PGC-1α and UCP1 in BAT. Moreover, BF also reduced the expression of inflammatory cytokines in WAT, such as tumor necrosis factor-α(TNF-α) and interleukin-6(IL-6). These findings suggested that the mechanism of BF against obesity was at least partially through increasing gene expression of PGC-1α and UCP1 for energy consumption in BAT and inhibiting inflammation in WAT.
文摘Uncoupling protein 1(UCP1)is a proton transporter/channel residing on the inner mitochondrial membrane and is involved in cellular heat production.Using immunohistochemistry,we investigated the expression of UCP1 and UCP3 in a series of 98 patients with non-small cell lung cancer(NSCLC)treated with surgery.Expression patterns were correlated with histopathological variables,prognosis,and the expression of enzymes/proteins related to cell metabolism.Bronchial epithelium did not express UCP1 or UCP3,while alveolar cells strongly expressed UCP1.In tumors,strong expression of UCP1 and UCP3 was recorded in43/98(43.8%)and 27/98(27.6%)cases,respectively.UCP1 was significantly associated with squamous cell histology(P=0.05),whilst UCP3 was more frequently overexpressed in large cell carcinomas(P=0.08),and was inversely related to necrosis(P=0.009).In linear regression analysis,UCP1 was directly related to markers of glycolysis[hexokinase(HXKII)and phosphofructokinase(PFK1)]and anaerobic glucose metabolism[pyruvate dehydrogenase kinase(PDK1)and lactate dehydrogenase(LDH5)].UCP3 was directly linked with a glucose transporter(GLUT2),monocarboxylate transporter(MCT2),glycolysis markers(PFK1 and aldolase),and with the phosphorylation of pyruvate dehydrogenase(p PDH).Kaplan-Meier survival analysis showed that UCP3 was significantly related to poor prognosis in squamous cell carcinomas(P=0.04).UCP1 and UCP3 are overexpressed in a large subgroup of non-small cell lung tumors and their expression coincides with increased glucose absorption,intensified glycolysis,and anaerobic glucose usage.Whether UCPs are targets for therapeutic interventions in lung cancer is a hypothesis that demands further investigation.
基金supported by the National Natural Science Foundation of China(No.31470716,310003233and 31070672)the Natural Science Foundation of Jiangsu Province,China(No.BK20131272).
文摘Uncoupling protein 1(UCP1,also known as thermogenin or SLC25A7)plays an important role in the uncoupling of oxidative phosphorylation and adaptive non-shivering thermogenesis(NST).The genomic location for UCP1 is chromosome 4 q31.1:140,555,770--140,568,961(GRCh38/hg38)and its size is 13,192 bases split into 6 exons.In dbSNP,3650 short genetic variations of human UCP1 are documented.In this study,UCP1 serves as an example to construct polymorphism-trait networks and enable a func-tional classification.
基金supported by the National Natural Science Foundation of China [31701598]the National Natural Science Foundation of China [31371760]the Priority Academic Program Development of Jiangsu Higher Education Institutions
文摘Objective We aimed to explore how fermented barley extracts with Lactobacillus plantarum dy-1(LFBE) affected the browning in adipocytes and obese rats.Methods In vitro, 3T3-L1 cells were induced by LFBE, raw barley extraction(RBE) and polyphenol compounds(PC) from LFBE to evaluate the adipocyte differentiation.In vivo, obese SD rats induced by high fat diet(HFD) were randomly divided into three groups treated with oral gavage:(a) normal control diet with distilled water,(b) HFD with distilled water,(c) HFD with 800 mg LFBE/kg body weight(bw).Results In vitro, LFBE and the PC in the extraction significantly inhibited adipogenesis and potentiated browning of 3T3-L1 preadipocytes, rather than RBE.In vivo, we observed remarkable decreases in the body weight, serum lipid levels, white adipose tissue(WAT) weights and cell sizes of brown adipose tissues(BAT) in the LFBE group after 10 weeks.LFBE group could gain more mass of interscapular BAT(IBAT) and promote the dehydrogenase activity in the mitochondria.And LFBE may potentiate process of the IBAT thermogenesis and epididymis adipose tissue(EAT) browning via activating the uncoupling protein 1(UCP1)-dependent mechanism to suppress the obesity.Conclusion These results demonstrated that LFBE decreased obesity partly by increasing the BAT mass and the energy expenditure by activating BAT thermogenesis and WAT browning in a UCP1-dependent mechanism.
文摘解耦联蛋白1(uncoupling protein 1,UCP1)是线粒体内膜的核编码蛋白,主要在棕色脂肪组织(brown adipose tissue,BAT)中表达,在调节能量代谢和线粒体稳态等方面发挥重要作用。UCP1调节BAT线粒体生物合成、线粒体动力学稳态和线粒体自噬,而三者的动态平衡有助于线粒体正常功能的发挥。本文主要对UCP1的结构与分布、UCP1调控BAT能量代谢相关机制、UCP1调控BAT线粒体稳态等方面进行综述。
