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One of the key mechanisms of immunological self-tolerance (i.e., unresponsiveness to self-constituents) is T cell-mediated dominant control of self-reactive lymphocytes. We have shown that CD25+CD4+ regulatory T (Treg) cells, which are naturally produced in the immune system, are actively engaged in suppressive control of a variety of physiological and pathological immune responses including autoimmune responses. Dysfunction or deficiency of CD25+CD4+ natural Treg cells is indeed a cause of autoimmune disease, allergy, and inflammatory bowel disease in humans. On the other hand, reduction of Treg cells or attenuation of their suppressive activity is able to enhance immune responses such as those against tumor antigens or microbes, while the increase in number or potentiation of their suppressive activity can establish immunological tolerance to organ grafts. A key feature of natural Treg cells is that they express the transcription factor Foxp3 as a master control gene for their development and function. One of the research projects of this laboratory is to determine the molecular and cellular basis of Treg development and function, in particular, how Foxp3 controls other genes and confer suppressive activity to Treg cells, how they are produced in the normal immune system, and how they can be exploited to control immune responses in clinical settings such as autoimmune disease.
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论文共 642 篇作者统计合作学者相似作者
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Kenji Ichiyama, Jia Long, Yusuke Kobayashi, Yuji Horita, Takeshi Kinoshita,Yamami Nakamura, Chizuko Kominami,Katia Georgopoulos,Shimon Sakaguchi
Immunityno. 9 (2024): 2043-2060.e10
Yoshiaki Yasumizu,Masaki Hagiwara, Yuto Umezu,Hiroaki Fuji,Keiko Iwaisako,Masataka Asagiri, Shinji Uemoto,Yamami Nakamura, Sophia Thul,Azumi Ueyama,Kazunori Yokoi,Atsushi Tanemura,Yohei Nose,Takuro Saito,Hisashi Wada,Mamoru Kakuda,Masaharu Kohara,Satoshi Nojima,Eiichi Morii,Yuichiro Doki,Shimon Sakaguchi,Naganari Ohkura
NAR cancerno. 2 (2024)
crossref(2024)
crossref(2024)
Advances in Experimental Medicine and Biology (2024): 67-82
crossref(2024)
INTERNATIONAL IMMUNOLOGYno. 4 (2024): 167-182
Cell genomicspp.100473-100473, (2024)
Natureno. 8018 (2024): 976-983
biorxiv(2024)
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#Papers: 641
#Citation: 84231
H-Index: 103
G-Index: 289
Sociability: 8
Diversity: 0
Activity: 3
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