[ Objective] This study aimed to investigate the biochemical and genetic characteristics of F1 hybrids of Ctenopharyngodon idellus ♀× Elopichthys bambusa ♂ - [ Method ] By using vertical polyacrylamide gel elec...[ Objective] This study aimed to investigate the biochemical and genetic characteristics of F1 hybrids of Ctenopharyngodon idellus ♀× Elopichthys bambusa ♂ - [ Method ] By using vertical polyacrylamide gel electrophoresis technology, three isozymes (LDH, EST, MDH) in nine tissues (heart, brain, eyes, liver, kidney, spleen, fin, muscle, plasma) of F1 hybrids of C. ideUus and parents were compared. [Result] Three isozymes in F1 hybrids of ♀× E. bambusa ♀ were analyzed; differences in isozyme and proteins between F1 hybrids idellus ♀× E. bambusa ♀ exhibited varying degrees of tissue-specificity; isozymes and proteins in F, hybrids were signiticandy different from the parents. [ Conclusion] These nine differences could be used as indicators to identify F1 hybrids and parents.展开更多
Tumor-resident microbiota in breast cancer promotes cancer initiation and malignant progression.However,targeting microbiota to improve the effects of breast cancer therapy has not been investigated in detail.Here,we ...Tumor-resident microbiota in breast cancer promotes cancer initiation and malignant progression.However,targeting microbiota to improve the effects of breast cancer therapy has not been investigated in detail.Here,we evaluated the microbiota composition of breast tumors and found that enterotoxigenic Bacteroides fragilis(ETBF)was highly enriched in the tumors of patients who did not respond to taxane-based neoadjuvant chemotherapy.ETBF,albeit at low biomass,secreted the toxic protein BFT-1 to promote breast cancer cell stemness and chemoresistance.Mechanistic studies showed that BFT-1 directly bound to NOD1 and stabilized NOD1 protein.NOD1 was highly expressed on ALDH+breast cancer stem cells(BCSCs)and cooperated with GAK to phosphorylate NUMB and promote its lysosomal degradation,thereby activating the NOTCH1-HEY1 signaling pathway to increase BCSCs.NOD1 inhibition and ETBF clearance increase the chemosensitivity of breast cancer by impairing BCSCs.展开更多
基金Supported by Project of Project of Science and Technology of Wuhan City(2013021001010464)
文摘[ Objective] This study aimed to investigate the biochemical and genetic characteristics of F1 hybrids of Ctenopharyngodon idellus ♀× Elopichthys bambusa ♂ - [ Method ] By using vertical polyacrylamide gel electrophoresis technology, three isozymes (LDH, EST, MDH) in nine tissues (heart, brain, eyes, liver, kidney, spleen, fin, muscle, plasma) of F1 hybrids of C. ideUus and parents were compared. [Result] Three isozymes in F1 hybrids of ♀× E. bambusa ♀ were analyzed; differences in isozyme and proteins between F1 hybrids idellus ♀× E. bambusa ♀ exhibited varying degrees of tissue-specificity; isozymes and proteins in F, hybrids were signiticandy different from the parents. [ Conclusion] These nine differences could be used as indicators to identify F1 hybrids and parents.
基金supported by National Key Research and Development Program of China(2023YFC2506400,2020YFA0112300)National Natural Science Foundation of China(Grant Nos.82230103,81930075,82073267,82203399,82072903)+7 种基金“Ten Thousand Plan”—National High-Level Talents Special Support Plan WR-YK5202101Program of Shanghai Academic/Technology Research Leader 20XD1400700Program for Outstanding Medical Academic Leader in Shanghai(2019LJ04)The innovative research team of high-level local university in ShanghaiThe Fudan University Research Foundation(IDH 1340042)The Research Foundation of the Fudan University Shanghai Cancer Center(YJRC1603)Shanghai Anticancer Association EYAS PROJECT(SACA-CY23B07)The Natural Science Foundation of Hunan Province(2020JJ4916).
文摘Tumor-resident microbiota in breast cancer promotes cancer initiation and malignant progression.However,targeting microbiota to improve the effects of breast cancer therapy has not been investigated in detail.Here,we evaluated the microbiota composition of breast tumors and found that enterotoxigenic Bacteroides fragilis(ETBF)was highly enriched in the tumors of patients who did not respond to taxane-based neoadjuvant chemotherapy.ETBF,albeit at low biomass,secreted the toxic protein BFT-1 to promote breast cancer cell stemness and chemoresistance.Mechanistic studies showed that BFT-1 directly bound to NOD1 and stabilized NOD1 protein.NOD1 was highly expressed on ALDH+breast cancer stem cells(BCSCs)and cooperated with GAK to phosphorylate NUMB and promote its lysosomal degradation,thereby activating the NOTCH1-HEY1 signaling pathway to increase BCSCs.NOD1 inhibition and ETBF clearance increase the chemosensitivity of breast cancer by impairing BCSCs.