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Kwon M, Kim BS, Yoon S, Oh SO, Lee D. Hematopoietic Stem Cells and Their Niche in Bone Marrow. Int J Mol Sci 2024; 25:6837. [PMID: 38999948 PMCID: PMC11241602 DOI: 10.3390/ijms25136837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
Extensive research has explored the functional correlation between stem cells and progenitor cells, particularly in blood. Hematopoietic stem cells (HSCs) can self-renew and regenerate tissues within the bone marrow, while stromal cells regulate tissue function. Recent studies have validated the role of mammalian stem cells within specific environments, providing initial empirical proof of this functional phenomenon. The interaction between bone and blood has always been vital to the function of the human body. It was initially proposed that during evolution, mammalian stem cells formed a complex relationship with the surrounding microenvironment, known as the niche. Researchers are currently debating the significance of molecular-level data to identify individual stromal cell types due to incomplete stromal cell mapping. Obtaining these data can help determine the specific activities of HSCs in bone marrow. This review summarizes key topics from previous studies on HSCs and their environment, discussing current and developing concepts related to HSCs and their niche in the bone marrow.
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Affiliation(s)
- Munju Kwon
- Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Byoung Soo Kim
- School of Biomedical Convergence Engineering, Pusan National University, Yangsan 50612, Republic of Korea
| | - Sik Yoon
- Department of Anatomy, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Sae-Ock Oh
- Department of Anatomy, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Dongjun Lee
- Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea
- Transplantation Research Center, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea
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2
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Kumar Gupta S, Gohil D, Dutta D, Panigrahi GC, Gupta P, Dalvi K, Khanka T, Yadav S, Kumar Kaushal R, Chichra A, Punatar S, Gokarn A, Mirgh S, Jindal N, Nayak L, Tembhare PR, Khizer Hasan S, Kumar Sandur S, Hingorani L, Khattry N, Gota V. Withaferin-A alleviates acute graft versus host disease without compromising graft versus leukemia effect. Int Immunopharmacol 2023; 121:110437. [PMID: 37311352 DOI: 10.1016/j.intimp.2023.110437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 06/15/2023]
Abstract
Acute graft versus host disease (aGvHD) contributes to a significant proportion of non-relapse mortality and morbidity in patients undergoing allogeneic hematopoietic stem cell transplantation (alloHSCT). Withaferin-A (WA), a phytomolecule obtained from Withania somnifera (Ashwagandha), is known to have anti-inflammatory, anti-proliferative and immunomodulatory properties. The efficacy of WA for the prevention and treatment of aGvHD was evaluated using a murine model of alloHSCT. Prophylactic administration of WA to mice mitigated the clinical symptoms of aGvHD and improved survival significantly compared to the GvHD control [HR = 0.07 (0.01-0.35); P < 0.001]. Furthermore, WA group had better overall survival compared to standard prophylactic regimen of CSA + MTX [HR = 0.19 (0.03-1.1), P < 0.05]. At the same time, WA did not compromise the beneficial GvL effect. In addition, WA administered to animals after the onset of aGvHD could reverse the clinical severity and improved survival, thus establishing its therapeutic potential. Our findings suggest that WA reduced the systemic levels of Th1, Th2 and Th17 inflammatory cytokine and increased the anti-inflammatory cytokine IL-10 levels significantly (P < 0.05). WA also inhibited lymphocytes migration to gut, liver, skin and lung and protected these organs from damage. Ex-vivo, WA inhibited proliferation of human peripheral blood mononuclear cells (hPBMCs), modulated immune cell phenotype and decreased cytokine release. In addition, WA inhibited pJAK2 and pSTAT3 protein levels in mouse splenocytes and hPBMCs. In conclusion, our study demonstrates the utility of WA for the prevention and treatment of aGvHD, which should be further evaluated in a clinical setting.
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Affiliation(s)
- Saurabh Kumar Gupta
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Dievya Gohil
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Deepshikha Dutta
- Cell and Tumor Biology Group, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Girish Ch Panigrahi
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Puja Gupta
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India
| | - Kajal Dalvi
- Hematopathology Laboratory, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India
| | - Twinkle Khanka
- Hematopathology Laboratory, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India
| | - Subhash Yadav
- Department of Pathology, Tata Memorial Hospital, Parel, Mumbai 400012, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Rajiv Kumar Kaushal
- Department of Pathology, Tata Memorial Hospital, Parel, Mumbai 400012, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Akanksha Chichra
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Sachin Punatar
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Anant Gokarn
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Sumeet Mirgh
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Nishant Jindal
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Lingaraj Nayak
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Prashant R Tembhare
- Hematopathology Laboratory, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Syed Khizer Hasan
- Cell and Tumor Biology Group, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Santosh Kumar Sandur
- Radiation Biology and Health Science Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai 400094, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Lal Hingorani
- Pharmanza Herbal Pvt. Ltd., Anand 388435, Gujarat, India
| | - Navin Khattry
- Department of Medical Oncology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India
| | - Vikram Gota
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, Maharashtra, India; Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, Mumbai 400094, Maharashtra, India.
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3
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Hsu YC, Chen CH, Huang HF, Lee YT, Wu MC, Su CW, Chou HC, Wang LF, Lee HS, Lin SW, Hsu PN, Wu YM, Sheu JC, Weng MT. Therapeutic Effects of Anti-PD1 Immunotherapy on Hepatocellular Carcinoma Under Administration of Tacrolimus. Transplantation 2023; 107:1492-1501. [PMID: 36380450 DOI: 10.1097/tp.0000000000004425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Liver transplantation (LT) is the treatment of choice for patients with hepatocellular carcinoma (HCC). Recurrence of HCC after LT occurs in 10% to 20% of cases. Preclinical studies to evaluate immune checkpoint inhibitors in conjunction with immunosuppressant treatment in transplant recipients have been lacking. Here, we evaluated the efficacy, safety, and mechanism of programmed cell death-1 (PD1) blockade under tacrolimus treatment in transplant recipients. METHODS We used a murine allogeneic skin transplantation model and murine syngeneic subcutaneous and orthotopic HCC models and measured the tumor volume and the change in tumor-infiltrating lymphocytes under PD1 blockade and tacrolimus treatment. RESULTS Tacrolimus treatment prolonged allograft survival in the allogeneic transplantation model and enhanced tumor growth in both subcutaneous and orthotopic HCC models. PD1 blockade suppressed tumor growth and lung metastasis in correlation with the number of infiltrating CD8 + T cells. Under tacrolimus treatment, PD1 blockade still resulted in an antitumor effect accompanied by a significant increase in tumor-infiltrating CD8 + T cells, natural killer cells, dendritic cells, and natural killer T cells. Tacrolimus treatment rescued the acceleration of transplant rejection induced by PD1 blockade in the allogeneic transplantation model. CONCLUSIONS Our data suggest that treatment with high-dose tacrolimus in conjunction with PD1 blockade has an antitumor effect and reduces transplant rejection in mouse models of allograft skin transplantation and HCC. Thus, these results suggest that a clinical trial of PD1 inhibitors for HCC in LT merits consideration.
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Affiliation(s)
- Yu-Chen Hsu
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Chien-Hung Chen
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan, Republic of China
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Hui-Fu Huang
- Department of Surgery, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Ying-Te Lee
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Meng-Chuan Wu
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Chien-Wen Su
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Huei-Chi Chou
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Li-Fang Wang
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
| | - Hsuan-Shu Lee
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Shu-Wha Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Laboratory Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Ping-Ning Hsu
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yao-Ming Wu
- Department of Surgery, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Jin-Chuan Sheu
- Liver Disease Prevention and Treatment Research Foundation, Taiwan, Republic of China
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Meng-Tzu Weng
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Medical Research, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan, Republic of China
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4
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Immunopathological insights into villitis of unknown etiology on the basis of transplant immunology. Placenta 2023; 131:49-57. [PMID: 36473393 DOI: 10.1016/j.placenta.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022]
Abstract
Villitis of unknown etiology (VUE) is an inflammatory disease characterized by the infiltration of maternal CD8 +T cells into the placental villi. Although the pathogenesis of VUE is still debated, dysregulation of the immune system appears to be an important factor in the development of the disease. Interaction of maternal T cells with the fetal antigens seems to be the trigger for the VUE onset. In this context, graft vs host disease (GVHD) and allographic rejection seem to share similarities in the VUE immunopathological mechanism, especially those related to immunoregulation. In this review, we compared the immunological characteristics of VUE with allograft rejection, and GVHD favoring a better knowledge of VUE pathogenesis that may contribute to VUE therapeutics strategies in the future.
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Margarit-Soler A, Deyà-Martínez À, Canizales JT, Vlagea A, García-García A, Marsal J, Del Castillo MT, Planas S, Simó S, Esteve-Sole A, Grande MSL, Badell I, Tarrats MR, Fernández-Avilés F, Alsina L. Case report: Challenges in immune reconstitution following hematopoietic stem cell transplantation for CTLA-4 insufficiency-like primary immune regulatory disorders. Front Immunol 2022; 13:1070068. [PMID: 36636328 PMCID: PMC9831655 DOI: 10.3389/fimmu.2022.1070068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/28/2022] [Indexed: 12/28/2022] Open
Abstract
Cytotoxic T-lymphocyte antigen-4 (CTLA-4) haploinsufficiency is a T-cell hyperactivation disorder that can manifest with both immunodeficiency and immune dysregulation. Approximately one-third of patients may present mild symptoms and remain stable under supportive care. The remaining patients may develop severe multiorgan autoimmunity requiring lifelong immunosuppressive treatment. Hematopoietic stem cell transplantation (HSCT) is potentially curable for patients with treatment-resistant immune dysregulation. Nevertheless, little experience is reported regarding the management of complications post-HSCT. We present case 1 (CTLA-4 haploinsufficiency) and case 2 (CTLA-4 insufficiency-like phenotype) manifesting with severe autoimmunity including cytopenia and involvement of the central nervous system (CNS), lung, and gut and variable impairment of humoral responses. Both patients underwent HSCT for which the main complications were persistent mixed chimerism, infections, and immune-mediated complications [graft-versus-host disease (GVHD) and nodular lung disease]. Detailed management and outcomes of therapeutic interventions post-HSCT are discussed. Concretely, post-HSCT abatacept and human leukocyte antigen (HLA)-matched sibling donor lymphocyte infusions may be used to increase T-cell donor chimerism with the aim of correcting the immune phenotype of CTLA-4 haploinsufficiency.
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Affiliation(s)
- Adriana Margarit-Soler
- Bone Marrow Transplant Unit, Oncology Service, Hospital Sant Joan de Déu, Barcelona, Spain,*Correspondence: Adriana Margarit-Soler, ; Laia Alsina,
| | - Àngela Deyà-Martínez
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain,Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain,Clinical Immunology Program Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - Juan Torres Canizales
- Clinical Immunology Unit, Department of Immunology, Biomedical Diagnostic Center, Hospital Clínic of Barcelona-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Alexandru Vlagea
- Clinical Immunology Unit, Department of Immunology, Biomedical Diagnostic Center, Hospital Clínic of Barcelona-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Ana García-García
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain,Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain,Clinical Immunology Program Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - Júlia Marsal
- Bone Marrow Transplant Unit, Oncology Service, Hospital Sant Joan de Déu, Barcelona, Spain
| | | | - Sílvia Planas
- Department of Pathology, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Sílvia Simó
- Infectious Diseases Unit, Department of Pediatrics, Hospital Sant Joan de Déu, Barcelona, Spain,Center for Biomedical Network Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Ana Esteve-Sole
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain,Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain,Clinical Immunology Program Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - María Suárez-Lledó Grande
- Hematopoietic Transplantation Unit, Hematology Department, Clinical Institute of Hematology and Oncology (ICMHO), Hospital Clínic de Barcelona, Barcelona, Spain,Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic, Barcelona, Spain,Department of Surgery and Surgical Specializations, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Isabel Badell
- Bone Marrow Transplant Unit, Oncology Service, Hospital Sant Joan de Déu, Barcelona, Spain,Pediatric Haematology and Stem Cell Transplantation Unit, Pediatric Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Montserrat Rovira Tarrats
- Bone Marrow Transplant Unit, Oncology Service, Hospital Sant Joan de Déu, Barcelona, Spain,Hematopoietic Transplantation Unit, Hematology Department, Clinical Institute of Hematology and Oncology (ICMHO), Hospital Clínic de Barcelona, Barcelona, Spain,Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic, Barcelona, Spain
| | - Francesc Fernández-Avilés
- Hematopoietic Transplantation Unit, Hematology Department, Clinical Institute of Hematology and Oncology (ICMHO), Hospital Clínic de Barcelona, Barcelona, Spain,Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clinic, Barcelona, Spain
| | - Laia Alsina
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain,Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain,Clinical Immunology Program Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain,Department of Surgery and Surgical Specializations, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,*Correspondence: Adriana Margarit-Soler, ; Laia Alsina,
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Cao W, Lu J, Li S, Song F, Xu J. Transcriptomic analysis of graft liver provides insight into the immune response of rat liver transplantation. Front Immunol 2022; 13:947437. [DOI: 10.3389/fimmu.2022.947437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022] Open
Abstract
BackgroundAs an “immune-privileged organ”, the liver has higher rates of both spontaneous tolerance and operational tolerance after being transplanted compared with other solid organs. Also, a large number of patients still need to take long-term immunosuppression regimens. Liver transplantation (LT) rejection involves varieties of pathophysiological processes and cell types, and a deeper understanding of LT immune response is urgently needed.MethodsHomogenic and allogeneic rat LT models were established, and recipient tissue was collected on postoperative day 7. The degree of LT rejection was evaluated by liver pathological changes and liver function. Differentially expressed genes (DEGs) were detected by transcriptome sequencing and confirmed by reverse transcription-polymerase chain reaction. The functional properties of DEGs were characterized by the Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Reactome pathway analyses. The cells infiltrating the graft and recipient spleen and peripheral blood were evaluated by immunofluorescence and flow cytometry.ResultA total of 1,465 DEGs were screened, including 1,177 up-regulated genes and 288 down-regulated genes. GO enrichment and KEGG pathway analysis indicated that DEGs were involved in several immunobiological processes, including T cell activation, Th1, Th2 and Th17 cell differentiation, cytokine-cytokine receptor interaction and other immune processes. Reactome results showed that PD-1 signaling was enriched. Further research confirmed that mRNA expression of multiple immune cell markers increased and markers of T cell exhaustion significantly changed. Flow cytometry showed that the proportion of Treg decreased, and that of PD-1+CD4+ T cells and PD-1+CD8+ T cells increased in the allogeneic group.ConclusionUsing an omic approach, we revealed that the development of LT rejection involved multiple immune cells, activation of various immune pathways, and specific alterations of immune checkpoints, which would benefit risk assessment in the clinic and understanding of pathogenesis regarding LT tolerance. Further clinical validations are warranted for our findings.
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Ryan MM, Patel M, Hogan K, Lipat AJ, Scandolara R, Das R, Bruker C, Galipeau J, Chinnadurai R. Ruxolitinib Inhibits IFNγ Licensing of Human Bone Marrow Derived Mesenchymal Stromal Cells. Transplant Cell Ther 2021; 27:389.e1-389.e10. [PMID: 33965175 DOI: 10.1016/j.jtct.2021.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 11/28/2022]
Abstract
Ruxolitinib is a JAK2/JAK1 inhibitor that blocks the inflammatory JAK-STAT signaling pathway. Ruxolitinib has been demonstrated to be effective in the treatment of steroid-resistant acute graft-versus-host disease (GVHD). Ruxolitinib's effect on inflammatory cells of hematopoietic origin is known. However, its effect on nonhematopoietic cell types with immune-modulating and antigen-presenting cell competency plausibly involved in pathogenesis of GVHD has not been explored. Mesenchymal stromal cells (MSCs) are CD45- nonhematopoietic cells of the bone marrow with immune modulatory functions in vivo. MSCs' immunobiology largely depends on their responsiveness to IFNγ. We aimed to define the effect of ruxolitinib on the immunobiology of MSCs that are modulated by IFNγ. Human bone marrow derived MSCs, peripheral blood mononuclear cells (PBMCs), and primary bone marrow aspirates were analyzed for their sensitivity to ruxolitinib-mediated blocking of IFNγ-induced STAT-1 phosphorylation and downstream effector molecules, utilizing Western blot, flow cytometry, secretome analysis, and phosflow techniques. IFNγ-induced cytostatic effects on MSCs are reversed by ruxolitinib. Ruxolitinib inhibits IFNγ and secretome of activated peripheral PBMC-induced STAT-1 phosphorylation on human bone marrow derived MSCs. In addition, ruxolitinib inhibits IFNγ-induced pro-GVHD pathways on MSCs, which includes HLAABC(MHCI), HLADR(MHCII), CX3CL1, and CCL2. IFNγ-induced immunosuppressive molecules IDO and PDL-1 were also inhibited by ruxolitinib on MSCs. Comparative analysis with PBMCs has demonstrated that MSCs are as equal as to HLADR+ PBMC populations in responding to ruxolitinib-mediated inhibition of IFNγ-induced STAT-1 phosphorylation. Ex vivo analysis of human marrow aspirates has demonstrated that ruxolitinib blocks IFNγ-induced STAT-1 phosphorylation in CD45+/-HLADR+/- populations at different levels, which is depending on their sensitivity to IFNγ responsiveness. These results inform the hypothesis that ruxolitinib's immune-modulatory effects in vivo may pharmacologically involve marrow and tissue-resident MSCs. Ruxolitinib affects the immunobiology of MSCs equivalent to professional HLADR+ antigen presenting cells, which collectively mitigate GVHD.
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Affiliation(s)
- Molly Mercedes Ryan
- Department of Medicine, University of Wisconsin Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Mihir Patel
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia
| | - Keenan Hogan
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia
| | - Ariel Joy Lipat
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia
| | - Rafaela Scandolara
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia
| | - Rahul Das
- Department of Medicine, University of Wisconsin Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Charles Bruker
- Department of Pathology, Memorial Health University Medical Center, Savannah, Georgia
| | - Jacques Galipeau
- Department of Medicine, University of Wisconsin Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Raghavan Chinnadurai
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia.
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8
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Grayson JM, Perez MD, Blevins R, Coe BN, Detty MR, McIver ZA. Photodepletion with 2-Se-Cl prevents lethal graft-versus-host disease while preserving antitumor immunity. PLoS One 2020; 15:e0234778. [PMID: 32569289 PMCID: PMC7307732 DOI: 10.1371/journal.pone.0234778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/02/2020] [Indexed: 12/17/2022] Open
Abstract
Acute graft-versus-host-disease (GVHD), limits the use of hematopoietic cell transplant (HCT) to treat a variety of malignancies. Any new therapeutic approach must satisfy three requirements: 1) Prevent GVHD, 2) Maintain anti-pathogen immunity, and 3) Maintain anti-tumor immunity. In prior studies we have shown that the selective photosensitizer 2-Se-Cl eliminates highly alloreactive lymphocytes from the graft prior to HCT preventing GVHD and that antiviral immune responses were preserved following incubation with 2-Se-Cl. In this report, we investigated whether 2-Se-Cl treatment preserves antitumor immunity, and then used high dimensional flow cytometry to identify the determinants of successful immune reconstitution. Donor C57BL/6 splenocytes were cocultured for 4 days with irradiated BALB/c splenocytes and then exposed to 2-Se-Cl. Photodepletion (PD)-treated splenocytes were then infused into lethally irradiated BALB/c mice inoculated with A20 leukemia/lymphoma cells. Recipient mice that received PD-treated splenocytes survived > 100 days without evidence of GVHD or leukemia. In contrast, mice that did not receive PD-treated cells at time of HCT died of leukemia progression. Multiparameter flow cytometry of cytokines and surface markers on peripheral blood samples 15 days after HCT demonstrated unique patterns of immune reconstitution. We found that before clinical disease onset GVHD was marked by functionally exhausted T cells, while tumor clearance and long-term survival were associated with an expansion of polyfunctional T cells, monocytes, and DCs early after transplantation. Taken together these results demonstrate that 2-Se-Cl photodepletion is a new treatment that can facilitate HCT by preventing GVHD while preserving antiviral and anti-tumor immunity.
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Affiliation(s)
- Jason M Grayson
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Mildred D Perez
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Rebecca Blevins
- Department of Hematology and Oncology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Benjamin N Coe
- Department of Hematology and Oncology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Michael R Detty
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York, United States of America
| | - Zachariah A McIver
- Department of Hematology and Oncology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
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9
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Koldej RM, Perera T, Collins J, Ritchie DS. Association between P2X7 Polymorphisms and Post-Transplant Outcomes in Allogeneic Haematopoietic Stem Cell Transplantation. Int J Mol Sci 2020; 21:ijms21113772. [PMID: 32471261 PMCID: PMC7312926 DOI: 10.3390/ijms21113772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/21/2020] [Accepted: 05/24/2020] [Indexed: 12/18/2022] Open
Abstract
Allogeneic stem cell transplantation (alloSCT) is a highly effective treatment method for haematologic malignancies. However, infection of acute organ dysfunction and graft versus host disease (GVHD) impact negatively on patient outcomes. Pre-transplant conditioning regimes are associated with high levels of immunogenic cell death and the release of extracellular ATP, which binds to the P2X7 receptor. It has been proposed that signaling through the P2X7 receptor may lead to activation of downstream effectors that influence alloSCT outcome. In this study, we examined the effect of gain-of-function (GOF) or loss-of-function (LOF) P2X7 Single Nucleotide Polymorphisms (SNP) in 453 paired alloSCT donors and recipients and correlated their presence or absence to the major post-transplant outcomes of acute GVHD, relapse free survival and overall survival. The allelic frequency of P2X7 SNP in recipients and donors was not different from those SNP for which there is published population data. The LOF SNP Glu496Ala was overrepresented in recipients who did not develop severe acute GVHD and was associated with improved overall survival in rare homozygous recipients, whereas the LOF SNP Ile568Asn was more common in patients with grade 1–4 GVHD but lost statistical association in patients with grade 2–4 aGVHD, and was associated with reduced overall survival in heterozygotes due to an excess of infection-related deaths. The GOF variant haplotype (homozygous Gln460Arg-Ala348Thr) had no impact on post-alloSCT outcomes. Overall, our data indicate that allelic variations in recipients or donors occurs at the same frequency as the general population and may have a minor, but clinically nominal, impact on post-alloSCT outcomes.
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Affiliation(s)
- Rachel M Koldej
- ACRF Translational Research Laboratory, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (T.P.); (J.C.); (D.S.R.)
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC 3010, Australia
- Correspondence: ; Tel.: +61-3-8559-7264
| | - Travis Perera
- ACRF Translational Research Laboratory, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (T.P.); (J.C.); (D.S.R.)
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and Royal Melbourne Hospital, Melbourne, VIC 3000, Australia
| | - Jenny Collins
- ACRF Translational Research Laboratory, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (T.P.); (J.C.); (D.S.R.)
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and Royal Melbourne Hospital, Melbourne, VIC 3000, Australia
| | - David S Ritchie
- ACRF Translational Research Laboratory, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (T.P.); (J.C.); (D.S.R.)
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and Royal Melbourne Hospital, Melbourne, VIC 3000, Australia
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10
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Human placenta derived mesenchymal stromal cells alleviate GVHD by promoting the generation of GSH and GST in PD-1 +T cells. Cell Immunol 2020; 352:104083. [PMID: 32143837 DOI: 10.1016/j.cellimm.2020.104083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/13/2020] [Accepted: 02/27/2020] [Indexed: 02/04/2023]
Abstract
AIMS To investigate whether placenta-derived mesenchymal stromal cells (hPMSCs) have immunoregulatory effects on PD-1+ T cell generation by controlling ROS production and thus alleviating GVHD. MAIN METHODS Flow cytometry was used to analyze the percentage of PD-1+ T cells, as well as the generation of ROS, GSH and GST in PD-1+ T cells. The expression of GST in the spleen and liver was analyzed by western blotting. KEY FINDINGS The percentage of PD-1+ T cells was increased, but the ratio of GSH/GSSG was decreased in GVHD patients and the GVHDhigh mouse model compared with that in the normal control group. hPMSCs downregulated the level of malondialdehyde (MDA) and upregulated the ratio of GSH/GSSG and the expression of glutathione S transferase (GST) in the plasma, spleen and liver of GVHD mice compared with those of PBS-treated GVHD mice. Further studies showed that the ROS level, as well as the expression of PD-1, in both CD3+ and CD4+ T cells from the spleen and liver of hPMSC-treated GVHD mice were decreased compared with those observed in PBS-treated mice. SIGNIFICANCE hPMSCs downregulated ROS generation by increasing GSH and GST levels and further reduced the expression of PD-1 on T cells, thereby alleviating inflammation in GVHD mice.
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11
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Simonetta F, Pradier A, Bosshard C, Masouridi-Levrat S, Dantin C, Koutsi A, Tirefort Y, Roosnek E, Chalandon Y. Dynamics of Expression of Programmed Cell Death Protein-1 (PD-1) on T Cells After Allogeneic Hematopoietic Stem Cell Transplantation. Front Immunol 2019; 10:1034. [PMID: 31156625 PMCID: PMC6531929 DOI: 10.3389/fimmu.2019.01034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/23/2019] [Indexed: 01/08/2023] Open
Abstract
Immune exhaustion contributes to treatment failure after allogeneic hematopoietic stem cell transplantation (HSCT) for hematological malignancies. Immune checkpoint blockade, including programmed cell death protein-1 (PD-1) blockade, is a promising strategy to improve the antitumor effect of allogeneic HSCT with high rates of response reported in patients treated for disease relapse. However, severe and sometimes fatal Graft- vs.-Host-Disease (GvHD) has been reported as a complication. Little is known about the dynamics of PD-1 expression on immune effector cells after allogeneic HSCT. In the present study, we analyzed PD-1 expression on T cell subpopulations isolated from 105 allogeneic HSCT recipients. Our analysis revealed a significant increase in proportions of PD-1-expressing CD4 and CD8 T cells early after allogeneic HSCT followed by a progressive normalization of PD-1 expression at CD8 but not CD4 T cell surface. Analysis of co-expression of two other exhaustion markers, 2B4 and CD160, revealed a preferential expansion of PD-1-single positive cells. Moreover, the analysis of granzyme B and perforin expression in PD-1+ and PD-1- CD8 T cells from HSCT recipients did not reveal any impairment in cytotoxic molecules production by PD-1-expressing CD8 T cells. Analyzing the association between clinical factors and the expression of PD-1 on T cells, we identified the use of in vivo and/or ex vivo T-cell depletion as the factor most strongly associated with elevated PD-1 levels on T cells. Our results extend our knowledge of the regulation of PD-1 expression at T cell surface after allogeneic HSCT, a crucial information for the optimization of post-transplantation PD-1 blocking therapies.
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Affiliation(s)
- Federico Simonetta
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Amandine Pradier
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Carine Bosshard
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Stavroula Masouridi-Levrat
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Carole Dantin
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Aikaterini Koutsi
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Yordanka Tirefort
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Eddy Roosnek
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Yves Chalandon
- Division of Hematology, Department of Oncology, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland
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12
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Tang L, Ma S, Gong H, Wang J, Xu Y, Wu D, Sun A. PD-L1 Ameliorates Murine Acute Graft-Versus-Host Disease by Suppressing Effector But Not Regulatory T Cells Function. Arch Immunol Ther Exp (Warsz) 2019; 67:179-187. [PMID: 30927016 DOI: 10.1007/s00005-019-00539-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 03/18/2019] [Indexed: 01/09/2023]
Abstract
There is increasing evidence that interaction between programmed death 1 (PD-1) and its ligands PD-1 (PD-L1) plays a critical role in the pathology of acute graft-versus-host disease (aGVHD). However, the role of PD-L1 in the development of aGVHD has been controversial in recent mouse studies. In this study, we carried out studies in a murine aGVHD model to clarify the role of PD-L1 in aGVHD pathogenesis. We found that systemic overexpression of PD-L1 by hydrodynamic gene transfer (HGT) method in vivo ameliorates aGVHD-induced lethality in mice. Systemic overexpression of PD-L1 inhibits the donor T cells activation, effector memory status, as well as Th1 and Th17 cells responses in vivo. In addition, PD-L1 Ig treatment significantly suppressed T cells' proliferation, promoted T cells' apoptosis, and reduced pro-inflammatory cytokines expression by effector T cells in vitro in the stimulation of anti-CD3/CD28 and allogeneic dendritic cells. However, we found that PD-L1 overexpression did not affect Treg cells' differentiation in vivo and in vitro, depletion of Treg cells in PD-L1 HGT recipients did not aggravate aGVHD mortality. Therefore, our results demonstrated that systemic treatment with PD-L1 protein ameliorates aGVHD by suppressing effector but not regulatory T cell function. Our findings suggest that systemic treatment with PD-L1 may be a potential strategy to prevent or ameliorate aGVHD.
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Affiliation(s)
- Lin Tang
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China.,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China.,Department of Hematology, Changzhou Traditional Chinese Medicine Hospital, Changzhou, 213003, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Shoubao Ma
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China. .,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China. .,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China.
| | - Huanle Gong
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China.,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Jun Wang
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China.,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Yang Xu
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China.,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China.,Department of Hematology, Changzhou Traditional Chinese Medicine Hospital, Changzhou, 213003, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Depei Wu
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China. .,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China. .,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China.
| | - Aining Sun
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China. .,Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, 215123, China. .,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China.
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13
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Regalla DKR, Williams GR, Paluri RK. Immune checkpoint inhibitors in the management of malignancies in transplant recipients. Postgrad Med J 2018; 94:704-708. [DOI: 10.1136/postgradmedj-2018-136081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/10/2018] [Accepted: 10/16/2018] [Indexed: 12/26/2022]
Abstract
Cancer immunotherapy, an area of active research, has thus far yielded several exciting breakthroughs in cancer treatment strategies. So far, immune checkpoint inhibitors have been the most promising method of cancer immunotherapy. CTLA-4, PD-1 and PD-L1 are the immune checkpoint molecules against which monoclonal antibodies act against and revolutionised the treatment of several malignancies. However, it is still unclear whether using these monoclonal antibodies in patients with malignancy and a history of transplant is as beneficial as in patients without a history of transplantation. The reason being, with the therapeutic benefit, also comes the inherent disadvantage of transplant rejection because of the activation of T-cells against donor antigens. So, transplant-related complications limit the usage of the checkpoint blockade therapy to treat malignancies. Here, we review the data published in this context and suggest optimal approaches to using the currently available repertoire of immunotherapies.
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14
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Recommendations for managing PD-1 blockade in the context of allogeneic HCT in Hodgkin lymphoma: taming a necessary evil. Blood 2018; 132:9-16. [DOI: 10.1182/blood-2018-02-811174] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/27/2018] [Indexed: 12/15/2022] Open
Abstract
Abstract
PD-1 blockade is an effective therapy in relapsed/refractory (R/R) classical Hodgkin Lymphoma (cHL) who have relapsed after or are ineligible for autologous hematopoietic cell transplantation (HCT). Although single-agent anti-PD-1 monoclonal antibodies (mAb’s) are associated with high response rates and durable remissions, available results to date suggest that a large majority of patients will eventually progress on therapy. Many of these patients are potential candidates for allogeneic HCT (allo-HCT) after receiving anti-PD-1 mAb’s, and allo-HCT remains for now the only treatment with demonstrated curative potential in this setting. However, initial reports suggested that allo-HCT in this setting may be associated with increased risk of early transplant-related toxicity, likely driven by lingering effects of PD-1 blockade. Furthermore, many patients with R/R cHL who undergo allo-HCT will relapse after transplantation, most often with limited treatment options. Here again, PD-1 blockade appears to yield high response rates, but with an increased risk of attendant immune toxicity. Many questions remain regarding the use of PD-1 blockade before or after allo-HCT, especially in relation to the feasibility, outcome, optimal timing, and method of allo-HCT after PD-1 blockade. Despite the scarcity of prospective data, these questions are unavoidable and must be tackled by clinicians in the routine care of patients with advanced cHL. We provide consensus recommendations of a working group based on available data and experience, in an effort to help guide treatment decisions until more definitive data are obtained.
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15
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Liu L, Chang YJ, Xu LP, Zhang XH, Wang Y, Liu KY, Huang XJ. Reversal of T Cell Exhaustion by the First Donor Lymphocyte Infusion Is Associated with the Persistently Effective Antileukemic Responses in Patients with Relapsed AML after Allo-HSCT. Biol Blood Marrow Transplant 2018; 24:1350-1359. [PMID: 29649617 DOI: 10.1016/j.bbmt.2018.03.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/29/2018] [Indexed: 01/28/2023]
Abstract
Donor lymphocyte infusion (DLI) is an effective approach to treat acute myelogenous leukemia (AML) relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT) that significantly improves the survival of relapsed patients. However, the mechanism of an effective antileukemic response following DLI in AML relapse remains elusive. Here, we investigated the role of T cell exhaustion in AML relapse after allo-HSCT in prospective cohorts of 41 patients with the first AML relapse and 41 nonrelapsed AML control subjects after allo-HSCT and determined whether DLI exerts effective antileukemic effects by reversing T cell exhaustion in the relapsed cohorts by detecting the phenotypes and functions of T cells using flow cytometry. We found that both CD4+ and CD8+ T cells experienced exhaustion with upregulated coexpression of PD-1 and Tim-3, and functional impairments in cytokine production, proliferation, and cytotoxic potentials. The reversal of T cell exhaustion by the first DLI is associated with persistent complete remission in relapsed AML patients. In addition, the reversal of T cell-exhausted status after successful DLI in bone marrow was concurrent with the mitigated inversion of CD4/CD8 T cell ratio. In conclusion, our study shows a clinical correlation between T cell exhaustion and AML relapse after allo-HSCT, and uncovers the role of reversing T cell exhaustion in the antileukemic response by DLI and identifies possible immunological markers to evaluate and predict the graft-versus-leukemia effects induced by DLI.
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Affiliation(s)
- Long Liu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China
| | - Ying-Jun Chang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China; Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Lan-Ping Xu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China
| | - Xiao-Hui Zhang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China
| | - Yu Wang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China
| | - Kai-Yan Liu
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China
| | - Xiao-Jun Huang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People's Hospital & Peking University Institute of Hematology, Beijing, China; Collaborative Innovation Center of Hematology, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
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