Breast and lung cancers are the leading causes of mortality and most frequently diagnosed cancers in women and men,respectively,worldwide.Although the antitumor activity of chalcones has been extensively studied,the m...Breast and lung cancers are the leading causes of mortality and most frequently diagnosed cancers in women and men,respectively,worldwide.Although the antitumor activity of chalcones has been extensively studied,the molecular mechanisms of isoliquiritigenin analog 2',4',4-trihydroxychalcone(metochalcone;TEC)against carcinomas remain less well understood.In this study,we found that TEC inhibited cell proliferation of breast cancer BT549 cells and lung cancer A549 cells in a concentration-dependent manner.TEC induced cell cycle arrest in the S-phase,cell migration inhibition in vitro,and reduced tumor growth in vivo.Moreover,transcriptomic analysis revealed that TEC modulated the activity of the JAK2/STAT3 and P53 pathways.TEC triggered the senescence-associated secretory phenotype(SASP)by repressing the JAK2/STAT3 axis.The mechanism of metochalcone against breast cancer depended on the induction of SASP via deactivation of the JAK2/STAT3 pathway,highlighting the potential of chalcone in senescence-inducing therapy against carcinomas.展开更多
皮肤衰老是衰老研究领域的一个分支,生物标志物可用于客观评价皮肤衰老程度,包括了特定蛋白基因、信号通路的激活以及一系列细胞分泌因子。本文概述了皮肤衰老相关分泌表型(skin aging related secretion phenotype,SASP)的组成及其生...皮肤衰老是衰老研究领域的一个分支,生物标志物可用于客观评价皮肤衰老程度,包括了特定蛋白基因、信号通路的激活以及一系列细胞分泌因子。本文概述了皮肤衰老相关分泌表型(skin aging related secretion phenotype,SASP)的组成及其生理功能、SASP在皮肤衰老过程中的变化,以及针对SASP为功效靶点设计的化妆品功效测试组合方法,旨在对基于SASP靶点的相关功效化妆品研究有一个更加全面深刻的认识。展开更多
Senescence is a cell fate that can be induced by intra/extracellular stresses such as DNA damage,oncogenic mutations,telomere shorting,and inflammation[1].Senescent cells develop a characteristic secretion profile inc...Senescence is a cell fate that can be induced by intra/extracellular stresses such as DNA damage,oncogenic mutations,telomere shorting,and inflammation[1].Senescent cells develop a characteristic secretion profile including a range of cytokines,chemokines,proteases,and other factors,which is termed the senescence-associated secretory phenotype(SASP)[2].Accumulating evidence indicates that SASP factors provoke multiple chronic diseases,even tumorigenesis and aggressiveness[3].Our recent studies reveal that heavy ion could induce senescence with lower dose than X-ray in various tumor cells[4;5].However,very little is known about the SASP of senescent tumor cells induced by heavy ions.In the present study,human melanoma cell line 92-1 cells were exposed to 10 Gy of carbon ion beams or X-rays,respectively.The cell culture supernatants were harvested 3 days post-irradiation,and the SASP were measured using human antibody arrays including 507 factors.展开更多
基金funded by the National Natural Science Foundation of China(82003879)Project of Science and Technology Department of Sichuan Province(2023NSFSC1928,2023NSFSC1992)+3 种基金Young Elite Scientists Sponsorship Program China Association for Science and Technology(CACM-2020-QNRC1-01)Project of State Administration of Traditional Chinese Medicine of China(ZYYCXTD-D-202209)Project of Undergraduate Training Programs for Innovation and Entrepreneurship(S202310610637)the Open Research Fund of State Key Laboratory of Southwestern Chinese Medicine Resources(SKLTCM202205).
文摘Breast and lung cancers are the leading causes of mortality and most frequently diagnosed cancers in women and men,respectively,worldwide.Although the antitumor activity of chalcones has been extensively studied,the molecular mechanisms of isoliquiritigenin analog 2',4',4-trihydroxychalcone(metochalcone;TEC)against carcinomas remain less well understood.In this study,we found that TEC inhibited cell proliferation of breast cancer BT549 cells and lung cancer A549 cells in a concentration-dependent manner.TEC induced cell cycle arrest in the S-phase,cell migration inhibition in vitro,and reduced tumor growth in vivo.Moreover,transcriptomic analysis revealed that TEC modulated the activity of the JAK2/STAT3 and P53 pathways.TEC triggered the senescence-associated secretory phenotype(SASP)by repressing the JAK2/STAT3 axis.The mechanism of metochalcone against breast cancer depended on the induction of SASP via deactivation of the JAK2/STAT3 pathway,highlighting the potential of chalcone in senescence-inducing therapy against carcinomas.
文摘皮肤衰老是衰老研究领域的一个分支,生物标志物可用于客观评价皮肤衰老程度,包括了特定蛋白基因、信号通路的激活以及一系列细胞分泌因子。本文概述了皮肤衰老相关分泌表型(skin aging related secretion phenotype,SASP)的组成及其生理功能、SASP在皮肤衰老过程中的变化,以及针对SASP为功效靶点设计的化妆品功效测试组合方法,旨在对基于SASP靶点的相关功效化妆品研究有一个更加全面深刻的认识。
文摘Senescence is a cell fate that can be induced by intra/extracellular stresses such as DNA damage,oncogenic mutations,telomere shorting,and inflammation[1].Senescent cells develop a characteristic secretion profile including a range of cytokines,chemokines,proteases,and other factors,which is termed the senescence-associated secretory phenotype(SASP)[2].Accumulating evidence indicates that SASP factors provoke multiple chronic diseases,even tumorigenesis and aggressiveness[3].Our recent studies reveal that heavy ion could induce senescence with lower dose than X-ray in various tumor cells[4;5].However,very little is known about the SASP of senescent tumor cells induced by heavy ions.In the present study,human melanoma cell line 92-1 cells were exposed to 10 Gy of carbon ion beams or X-rays,respectively.The cell culture supernatants were harvested 3 days post-irradiation,and the SASP were measured using human antibody arrays including 507 factors.
