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Xu A, Bhanumathy KK, Wu J, Ye Z, Freywald A, Leary SC, Li R, Xiang J. IL-15 signaling promotes adoptive effector T-cell survival and memory formation in irradiation-induced lymphopenia. Cell Biosci 2016; 6:30. [PMID: 27158441 PMCID: PMC4858849 DOI: 10.1186/s13578-016-0098-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 04/25/2016] [Indexed: 11/28/2022] Open
Abstract
Background Lymphopenia promotes naïve T-cell homeostatic proliferation and adoptive effector T-cell survival and memory formation. IL-7 plays a critical role in homeostatic proliferation, survival and memory formation of naïve T-cells in lymphopenia, and its underlying molecular mechanism has also been well studied. However, the mechanism for adoptively transferred effector T-cell survival and memory formation is not fully understood. Here, we transferred in vitro-activated transgenic OT-I CD8+ effector T-cells into irradiation (600 rads)-induced lymphopenic C57BL/6, IL-7 knockout (KO) and IL-15 KO mice, and investigated the survival and memory formation of transferred T-cells in lymphopenia. Results We demonstrate that transferred T-cells prolong their survival and enhance their memory in lymphopenic mice, in a manner that depends on IL-15 signaling, but not IL-7. We determine that in vitro stimulation of naïve or effector T-cells with IL-7 and IL-15 reduces IL-7Rα, and increases and/or maintains IL-15Rβ expression, respectively. Consistent with these findings, the expression of IL-7Rα and IL-15Rβ is down- and up-regulated, respectively, in vivo on transferred T-cells in an early phase post T-cell transfer in lymphopenia. We further show that in vitro IL-15 restimulation-induced memory T-cells (compared to IL-2 restimulation-induced effector T-cells) and in vivo transferred T-cells in irradiated IL-15-sufficient C57BL/6 mice (compared to IL-15-deficient IL-15 KO mice) have increased mitochondrial content, but less NADH and lower mitochondrial potential (ΔΨm), and demonstrate greater phosphorylation of signal transducers and activators of transcription-5 (STAT5) and Unc-51-like kinase-1 (ULK1), and higher expression of B-cell leukemia/lymphoma-2 (Bcl2) and memory-, autophagy- and mitochondrial biogenesis-related molecules. Conclusion Irradiation-induced lymphopenia promotes effector T-cell survival via IL-15 signaling the STAT5/Bcl2 pathway, enhances T-cell memory formation via IL-15 activation of the forkhead-box family of transcription factor (FOXO)/eomesodermin (Eomes) memory and ULK1/autophagy-related gene-7 (ATG7) autophagy pathways, and via IL-15 activation of the mitochondrial remodeling. Our data thus identify some important targets to consider when designing potent adoptive T-cell immunotherapies of cancer. Electronic supplementary material The online version of this article (doi:10.1186/s13578-016-0098-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Aizhang Xu
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China ; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Kalpana Kalyanasundaram Bhanumathy
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, SK Canada ; Departments of Oncology, University of Saskatchewan, HSB Room 4D30.1, 107 Wiggins Road, Saskatoon, SK S7N 5E5 Canada
| | - Jie Wu
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, SK Canada
| | - Zhenmin Ye
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, SK Canada
| | - Andrew Freywald
- Department of Pathology, University of Saskatchewan, Saskatoon, SK Canada
| | - Scot C Leary
- Department of Biochemistry, University of Saskatchewan, Saskatoon, SK Canada
| | - Rongxiu Li
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China ; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China ; Engineering Research Center of Cell & Therapeutic Antibody, School of Pharmacy, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Jim Xiang
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, SK Canada ; Departments of Oncology, University of Saskatchewan, HSB Room 4D30.1, 107 Wiggins Road, Saskatoon, SK S7N 5E5 Canada
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Schembri L, Zanese M, Depierre-Plinet G, Petit M, Elkaoukabi-Chaibi A, Tauzin L, Florean C, Lartigue L, Medina C, Rey C, Belloc F, Reiffers J, Ichas F, De Giorgi F. Recombinant Differential Anchorage Probes that Tower over the Spatial Dimension of Intracellular Signals for High Content Screening and Analysis. Anal Chem 2009; 81:9590-8. [DOI: 10.1021/ac9015227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laura Schembri
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Marion Zanese
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Gaelle Depierre-Plinet
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Muriel Petit
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Assia Elkaoukabi-Chaibi
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Loic Tauzin
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Cristina Florean
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Lydia Lartigue
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Chantal Medina
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Christophe Rey
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Francis Belloc
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Josy Reiffers
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - François Ichas
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
| | - Francesca De Giorgi
- INSERM U916, Institut Bergonié, Université Victor Segalen, 229 cours de l’Argonne, 33076 Bordeaux, France, FLUOFARMA, 2 rue Robert Escarpit, 33600 Pessac, France, Dipartimento delle Scienze Biomediche Sperimentali, Università di Padova, 35121 Padova, Italia, and CHU de Bordeaux, Hôpital du Haut Lévêque, 33600 Pessac, France
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