FIP200 loss links to poor autophagy and high apoptosis in naïve T cells in tumor. FIP200 loss links to poor autophagy and high apoptosis in naïve T cells.

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Presentation transcript:

FIP200 loss links to poor autophagy and high apoptosis in naïve T cells in tumor. FIP200 loss links to poor autophagy and high apoptosis in naïve T cells in tumor. (A) Phenotype of naïve T cells in blood and cancer tissues in ovarian cancer (OC) patients. Peripheral blood mononuclear cells and ovarian cancer tissue single cells were stained with antibodies against CD3, CD7, CD45RA, and CD45RO and analyzed with LSR II (n = 5). (B to E) Apoptotic naïve T cells in peripheral blood and ovarian cancer tissues in ovarian cancer patients. (B) Numbers on the dot plots represent the percentage of AnnexinV+CD45RA+CD45RO−CD3+ naïve T cells. The percentages of Annexin V+CD4+ (C) and Annexin V+CD8+ (D) naïve T cells are shown (n = 5, means ± SEM). *P < 0.05 (Mann-Whitney U tests) compared with control group. (E) Human naïve T cells were cultured with anti-CD3 and anti-CD28 antibodies for 48 hours. Numbers on the dot plots represent the percentage of Annexin V+ T cells of activated naïve T cells (n = 5). (F and G) Apoptotic naïve T cells in healthy mice and ID8 tumor–bearing mice. (F) Numbers on the dot plots represent the percentage of Annexin V+CD44−CD3+ fresh naïve T cells in mesenteric lymph nodes (n = 13, means ± SEM). *P < 0.05 (Mann-Whitney U tests). (G) T cells were cultured with anti-CD3 and anti-CD28 antibodies for 48 hours. Numbers on the dot plots represent the percentage of Annexin V+ T cells of activated naïve T cells (n = 7). (H) Autophagy component proteins in fresh peripheral blood naïve T cells in healthy human donors and ovarian cancer patients (n = 6). (I) Autophagy component proteins in fresh mouse naïve lymph node T cells from normal, ID8-, and LLC-bearing mice (n = 3). Houjun Xia et al. Sci. Immunol. 2017;2:eaan4631 Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works