Although vaccines have been developed,mutations of SARS-CoV-2,especially the dominant B.1.617.2(delta)and B.1.529(omicron)strains with more than 30 mutations on their spike protein,have caused a significant decline in...Although vaccines have been developed,mutations of SARS-CoV-2,especially the dominant B.1.617.2(delta)and B.1.529(omicron)strains with more than 30 mutations on their spike protein,have caused a significant decline in prophylaxis,calling for the need for drug improvement.Antibodies are drugs preferentially used in infectious diseases and are easy to get from immunized organisms.The current study combined molecular modeling and single memory B cell sequencing to assess candidate sequences before experiments,providing a strategy for the fabrication of SARS-CoV-2 neutralizing antibodies.A total of 128 sequences were obtained after sequencing 196 memory B cells,and 42 sequences were left after merging extremely similar ones and discarding incomplete ones,followed by homology modeling of the antibody variable region.Thirteen candidate sequences were expressed,of which three were tested positive for receptor binding domain recognition but only one was confirmed as having broad neutralization against several SARS-CoV-2 variants.The current study successfully obtained a SARS-CoV-2 antibody with broad neutralizing abilities and provided a strategy for antibody development in emerging infectious diseases using single memory B cell BCR sequencing and computer assistance in antibody fabrication.展开更多
Polycystic ovary syndrome(PCOS)is a prevalent endocrine disorder among women of reproductive age,with a global prevalence ranging from 5%to 18%(Shrivastava and Conigliaro,2023).Currently,a total of 12.13 million cases...Polycystic ovary syndrome(PCOS)is a prevalent endocrine disorder among women of reproductive age,with a global prevalence ranging from 5%to 18%(Shrivastava and Conigliaro,2023).Currently,a total of 12.13 million cases of infertility(Liu et al.,2024)and 0.24 million cases of cardiovascular disease(Wan et al.,2024)are attributable to PCOS worldwide,and nearly 8 billion US dollars are spent in the USA and Europe for the management of PCOS every year.However,there are still many challenges in understanding and treatment of PCOS.展开更多
基金supported by the Jiangsu Provincial Key Research and Development Program (Grant No.BE2020616)the National Key R&D Program of China (Grant No.2018YFC1200603)+1 种基金the National Science and Technology Major Project (Grant No.2019SWAQ05-5-4)Jiangsu Key Lab of Cancer Biomarkers,Prevention and Treatment,Collaborative Innovation Center for Cancer Personalized Medicine,Nanjing Medical University.
文摘Although vaccines have been developed,mutations of SARS-CoV-2,especially the dominant B.1.617.2(delta)and B.1.529(omicron)strains with more than 30 mutations on their spike protein,have caused a significant decline in prophylaxis,calling for the need for drug improvement.Antibodies are drugs preferentially used in infectious diseases and are easy to get from immunized organisms.The current study combined molecular modeling and single memory B cell sequencing to assess candidate sequences before experiments,providing a strategy for the fabrication of SARS-CoV-2 neutralizing antibodies.A total of 128 sequences were obtained after sequencing 196 memory B cells,and 42 sequences were left after merging extremely similar ones and discarding incomplete ones,followed by homology modeling of the antibody variable region.Thirteen candidate sequences were expressed,of which three were tested positive for receptor binding domain recognition but only one was confirmed as having broad neutralization against several SARS-CoV-2 variants.The current study successfully obtained a SARS-CoV-2 antibody with broad neutralizing abilities and provided a strategy for antibody development in emerging infectious diseases using single memory B cell BCR sequencing and computer assistance in antibody fabrication.
基金supported by the National Key Research and Development Program of China(2021YFC2700403)Shanghai Municipal Science and Tech-nology Major Project(2023SHZDZX02)+1 种基金the National Natural Science Foundation of China(81873660 and 32371333)the Science and Technology Commission of Shanghai Municipality(23XD1423300 and 23ZR1411000).
文摘Polycystic ovary syndrome(PCOS)is a prevalent endocrine disorder among women of reproductive age,with a global prevalence ranging from 5%to 18%(Shrivastava and Conigliaro,2023).Currently,a total of 12.13 million cases of infertility(Liu et al.,2024)and 0.24 million cases of cardiovascular disease(Wan et al.,2024)are attributable to PCOS worldwide,and nearly 8 billion US dollars are spent in the USA and Europe for the management of PCOS every year.However,there are still many challenges in understanding and treatment of PCOS.
