Induction of regulatory CD4⁺ cells and prolongation of survival of fully allogeneic murine cardiac grafts by danazol

Transplantation Proceedings
M UchiyamaMasanori Niimi

Abstract

Danazol, a modified testosterone, has been used to treat endometriosis and pretreatment before in vitro fertilization and embryo transfer, although its reproductive mechanisms remain unclear. We investigated the effect of danazol on alloimmune responses in murine heart transplantation. CBA male mice (H2(k)) that underwent transplantation of C57BL/6 (B6, H2(b)) hearts received danazol (0.4 and 4 mg/kg/d) by intraperitoneal injection from the day of transplantation to days 6. We performed an adoptive transfer study to determine regulatory cells as well as cell proliferation, cytokine, and flow cytometry assessments. Danazol-treated (4 mg/kg/d) CBA mice showed prolonged allograft survival (median survival time [MST], 63 days). Moreover, secondary CBA recipients of whole splenocytes and CD4(+) cells from primary danazol-treated (4 mg/kg/d) CBA recipients at 30 days after transplantation displayed prolonged allograft survival (MSTs, 29 and 60 days, respectively). Cell proliferation, interleukin (IL)-2, and interferon-γ were suppressed in danazol-treated mice, whereas IL-4 and IL-10 were up-regulated. Moreover, danazol directly suppressed alloproliferation in mixed leukocyte cultures. Flow cytometry studies showed an increased CD4(+)...Continue Reading

References

Jan 1, 1991·Journal of Cancer Research and Clinical Oncology·E EscrichS Saez
Oct 11, 2005·The Journal of Thoracic and Cardiovascular Surgery·Takeshi YokoyamaMasanori Niimi
May 23, 2009·American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons·D IwamiM Niimi
Feb 1, 2011·Annals of Hematology·José Carlos Jaime-PérezDavid Gómez-Almaguer

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Citations

Oct 1, 2015·La Revue de médecine interne·S AudiaB Bonnotte
Nov 1, 2015·Transplantation Proceedings·M UchiyamaM Niimi
Jun 12, 2020·Andrology·Vito A GiagulliVincenzo Triggiani
Mar 4, 2019·Cellular and Molecular Life Sciences : CMLS·Wen-Jie ZhouMing-Qing Li

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