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Elsemary MT, Maritz MF, Smith LE, Warkiani ME, Thierry B. Enrichment of T-lymphocytes from leukemic blood using inertial microfluidics toward improved chimeric antigen receptor-T cell manufacturing. Cytotherapy 2024:S1465-3249(24)00714-X. [PMID: 38819362 DOI: 10.1016/j.jcyt.2024.05.005] [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: 02/29/2024] [Revised: 04/30/2024] [Accepted: 05/05/2024] [Indexed: 06/01/2024]
Abstract
Chimeric antigen receptor cell therapy is a successful immunotherapy for the treatment of blood cancers. However, hurdles in their manufacturing remain including efficient isolation and purification of the T-cell starting material. Herein, we describe a one-step separation based on inertial spiral microfluidics for efficient enrichment of T-cells in B-cell acute lymphoblastic leukemia (ALL) and B-cell chronic lymphocytic leukemia patient's samples. In healthy donors used to optimize the process, the lymphocyte purity was enriched from 65% (SD ± 0.2) to 91% (SD ± 0.06) and T-cell purity was enriched from 45% (SD ± 0.1) to 73% (SD ± 0.02). Leukemic samples had higher starting B-cells compared to the healthy donor samples. Efficient enrichment and recovery of lymphocytes and T-cells were achieved in ALL samples with B-cells, monocytes and leukemic blasts depleted by 80% (SD ± 0.09), 89% (SD ± 0.1) and 74% (SD ± 0.09), respectively, and a 70% (SD ± 0.1) T-cell recovery. Chronic lymphocytic leukemia samples had lower T-cell numbers, and the separation process was less efficient compared to the ALL. This study demonstrates the use of inertial microfluidics for T-cell enrichment and depletion of B-cell blasts in ALL, suggesting its potential to address a key bottleneck of the chimeric antigen receptor-T manufacturing workflow.
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Affiliation(s)
- Mona T Elsemary
- Future Industries Institute, University of South Australia Mawson Lakes Campus, Mawson Lakes, SA, Australia
| | - Michelle F Maritz
- Future Industries Institute, University of South Australia Mawson Lakes Campus, Mawson Lakes, SA, Australia
| | - Louise E Smith
- Future Industries Institute, University of South Australia Mawson Lakes Campus, Mawson Lakes, SA, Australia
| | | | - Benjamin Thierry
- Future Industries Institute, University of South Australia Mawson Lakes Campus, Mawson Lakes, SA, Australia.
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Liu W, Zhu M, Li G, Xi Y. The KIR2DL family serves as prognostic biomarkers and correlates with immune infiltrates in acute myeloid leukaemia. J Cell Mol Med 2024; 28:e18256. [PMID: 38527290 PMCID: PMC10963068 DOI: 10.1111/jcmm.18256] [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: 04/01/2023] [Revised: 02/16/2024] [Accepted: 02/28/2024] [Indexed: 03/27/2024] Open
Abstract
Acute myeloid leukaemia (AML) is a prevalent haematological malignancy in which various immune and stromal cells in the bone marrow microenvironment have instrumental roles and substantially influence its progression. KIR2DL is a member of the immunoglobulin-like receptor family and a natural killer (NK) cell surface-specific receptor. However, its impact on immune infiltration regarding AML has not been addressed. We aimed to explore molecular markers associated with the immune microenvironment and prognosis of AML with a particular focus on KIR2DL family members. Analysis of data from The Cancer Genome Atlas and Genotype-Tissue Expression databases revealed that KIR2DL1, KIR2DL3 and KIR2DL4 expression were significantly upregulated in AML and associated with decreased overall survival (OS). Moreover, univariate Cox analysis implicated KIR2DL genes as independent prognostic markers of OS. Functional enrichment analysis revealed that KIR2DL genes were associated with immune cells, the immune microenvironment and NK cell-mediated cytotoxicity. Additionally, immune infiltration analyses revealed that KIR2DL upregulation was associated with stronger immune infiltration. Finally, we performed drug sensitivity profiling of KIR2DL genes using the Cellminer database. Collectively, our findings suggest that KIR2DL1, KIR2DL3 and KIR2DL4 have critical roles in AML and may represent novel biomarker genes for disease prognosis and immune infiltration.
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Affiliation(s)
- Wenling Liu
- The First Clinical Medical College of Lanzhou UniversityLanzhouChina
| | - Mingming Zhu
- Affiliated Hospital of Qinghai UniversityXiningChina
| | - Ganggang Li
- The Fifth People's Hospital of Qinghai ProvinceXiningChina
| | - Yaming Xi
- The First Clinical Medical College of Lanzhou UniversityLanzhouChina
- Department of HematologyThe First Hospital of Lanzhou UniversityLanzhouChina
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Xu L, Liu M, Lian J, Li E, Dongmin C, Li X, Wang W. A prognostic nomogram for predicting recurrence-free survival of stage I-III colon cancer based on immune-infiltrating Treg-related genes. J Cancer Res Clin Oncol 2023; 149:13523-13543. [PMID: 37498396 PMCID: PMC10590341 DOI: 10.1007/s00432-023-05187-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
PURPOSE A high postoperative recurrence rate seriously impedes colon cancer (CC) patients from achieving long-term survival. Here, we aimed to develop a Treg-related classifier that can help predict recurrence-free survival (RFS) and therapy benefits of stage I-III colon cancer. METHODS A Treg-related prognostic classifier was built through a variety of bioinformatic methods, whose performance was assessed by KM survival curves, time-dependent receiver operating characteristic (tROC), and Harrell's concordance index (C-index). A prognostic nomogram was generated using this classifier and other traditional clinical parameters. Moreover, the predictive values of this classifier for immunotherapy and chemotherapy therapeutic efficacy were tested using multiple immunotherapy sets and R package "pRRophetic". RESULTS A nine Treg-related classifier categorized CC patients into high- and low-risk groups with distinct RFS in the multiple datasets (all p < 0.05). The AUC values of 5-year RFS were 0.712, 0.588, 0.669, and 0.662 in the training, 1st, 2nd, and entire validation sets, respectively. Furthermore, this classifier was identified as an independent predictor of RFS. Finally, a nomogram combining this classifier and three clinical variables was generated, the analysis of tROC, C-index, calibration curves, and the comparative analysis with other signatures confirmed its predictive performance. Moreover, KM analysis exhibited an obvious discrepancy in the subgroups, especially in different TNM stages and with adjuvant chemotherapy. We detected the difference between the two risk subsets of immune cell sub-population and the response to immunotherapy and chemotherapy. CONCLUSIONS We built a robust Treg-related classifier and generated a prognostic nomogram that predicts recurrence-free survival in stage I-III colon cancer that can identify high-risk patients for more personalized and effective therapy.
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Affiliation(s)
- Longwen Xu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Mengjie Liu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jie Lian
- Department of General Surgery, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi, China
- Department of Pathology, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi, China
| | - Enmeng Li
- Department of General Surgery, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi, China
| | - Chang Dongmin
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Xuqi Li
- Department of General Surgery, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi, China.
| | - Wenjuan Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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4
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Wang M, Yin X, Zeng Y, Hu C, Xue Y, Fang Q, Qiao X, Zhao X, Du C, Huang F, Lin Y. Extracts from Seseli mairei Wolff attenuate imiquimod-induced psoriasis-like inflammation by inhibiting Th17 cells. Heliyon 2023; 9:e17315. [PMID: 37539258 PMCID: PMC10394919 DOI: 10.1016/j.heliyon.2023.e17315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 06/03/2023] [Accepted: 06/13/2023] [Indexed: 08/05/2023] Open
Abstract
Objective Seseli mairei Wolff extracts (SMWE) are widely used to treat psoriasis as a Chinese medicine, but their effect and mechanism are unclear. This study verified the effect of SMWE on psoriasis by regulating Th17 cells. Methods HaCaT cells were treated with IL-17A in vitro to evaluate the effect of SMWE on psoriasis. In vivo, the mice psoriasis model was established using imiquimod (IMQ, 62.5 mg/d), and intragastrically treated with the different drugs for six days. The severity of skin inflammation was evaluated with Psoriasis Area and Severity Index (PASI) scores and pathology. The levels of inflammation cytokines were assessed with immunofluorescence, immunochemistry, ELISA, and real-time PCR. The number of Th17 cells was determined with flows. Results SMWE inhibited the proliferation of HaCaT cells and reduced the IL-17A-induced IL-6 production in vitro. In vivo, SMWE deduced the levels of IL-1β, IL-6, IL-8, IL-17A, IL-17F, IL-22, IL-23, and TNF-α, while increasing the level of IL-10 compared to the model group. SMWE also inhibited the levels of NF-κB, JAK2, and STAT3 proteins, while declining the expressions of Gr-1, and MPO. Interestingly, SMWE significantly decreased the number of Th17 cells. Conclusion SMWE inhibited the proliferation of HaCaT cells and attenuated the development of psoriasis lesions by inhibiting Th17 cells to regulate the levels of inflammation cytokines.
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Parasar P, Bernard M, Ahn SH, Kshirsagar SK, Nguyen SL, Grzesiak GR, Vettathu M, Martin D, Petroff MG. Isolation and characterization of uterine leukocytes collected using a uterine swab technique. Am J Reprod Immunol 2022; 88:e13614. [PMID: 35997140 PMCID: PMC9787928 DOI: 10.1111/aji.13614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 07/07/2022] [Accepted: 08/15/2022] [Indexed: 12/31/2022] Open
Abstract
PROBLEM Leukocytes from the maternal-fetal interface are a valuable tool to study local changes in immune function during pregnancy; however, sampling can be challenging due to inadequate tissue availability and the invasive nature of placental bed biopsy. Here, we aim to purify and characterize leukocytes from paired peripheral and uterine blood samples to assess whether a less invasive method of uterine blood collection could yield a population of enriched uterine leukocytes suitable for ex vivo and in vitro analyses. METHOD OF STUDY Human peripheral blood mononuclear cells (PBMC) and uterine blood mononuclear cells (UBMC) expressed from surgical gauze post C-section were isolated, and immunophenotypic information was acquired by multi-parameter flow cytometry. PBMC and UBMC were stained for markers used to define T and B lymphocytes, macrophages, regulatory T (TReg ) cells, and natural killer (NK) cells. Prime flow was performed to check expression and analysis of CD16- CD56++ and CD16- CD56++ NK transcripts in PBMC and UBMC samples. RESULTS Immunophenotyping revealed that over 95% of both live PBMC and UBMC consisted of CD45+ leukocytes. Higher percentages of CD16- CD56++ , characterized as uterine NK (uNK) cells, were observed in UBMC samples as compared to PBMC samples (18.41% of CD45+ CD3- vs. 2.73%, respectively), suggesting that CD16- CD56++ cells were enriched in these samples. In UBMC, 49.64% of CD3-negative cells were of peripheral NK phenotype (CD16+ CD56++ ), suggesting infiltration of maternal peripheral NK (pNK) cell in the uterine interface. CONCLUSION Intrauterine leukocytes, especially CD16- CD56++ NK cells, can be collected in sufficient numbers with increased purity by sampling the uterine cavity postdelivery with surgical gauze. Our results suggest that this non-invasive protocol is a useful sampling technique for isolating CD16- CD56++ cells, however, due to peripheral blood contamination, the NK cell yield could be lower compared to actual decidual or endometrial samples post-partum which is more invasive.
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Affiliation(s)
- Parveen Parasar
- Department of Pathobiology & Diagnostic InvestigationChildren's Hospital BostonEast LansingMichiganUSA
| | - Matthew Bernard
- Department of Pharmacology & ToxicologyMichigan State UniversityEast LansingMichiganUSA
| | - Soo Hyun Ahn
- Department of Pathobiology & Diagnostic InvestigationChildren's Hospital BostonEast LansingMichiganUSA
| | - Sarika K. Kshirsagar
- Department of Pathobiology & Diagnostic InvestigationChildren's Hospital BostonEast LansingMichiganUSA
| | - Sean L. Nguyen
- Cell and Molecular Biology ProgramMichigan State UniversityEast LansingMichiganUSA,Institute for Integrative ToxicologyMichigan State UniversityEast LansingMichiganUSA
| | - Geoffrey R. Grzesiak
- Department of Pathobiology & Diagnostic InvestigationChildren's Hospital BostonEast LansingMichiganUSA
| | - Mathew Vettathu
- Department of Obstetrics & GynecologySparrow HospitalEast LansingMichiganUSA
| | - Denny Martin
- Department of Obstetrics & GynecologySparrow HospitalEast LansingMichiganUSA
| | - Margaret G. Petroff
- Department of Pathobiology & Diagnostic InvestigationChildren's Hospital BostonEast LansingMichiganUSA,Cell and Molecular Biology ProgramMichigan State UniversityEast LansingMichiganUSA,Microbiology & Molecular GeneticsMichigan State UniversityEast LansingMichiganUSA
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Hughes AM, Kuek V, Kotecha RS, Cheung LC. The Bone Marrow Microenvironment in B-Cell Development and Malignancy. Cancers (Basel) 2022; 14:2089. [PMID: 35565219 PMCID: PMC9102980 DOI: 10.3390/cancers14092089] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 11/16/2022] Open
Abstract
B lymphopoiesis is characterized by progressive loss of multipotent potential in hematopoietic stem cells, followed by commitment to differentiate into B cells, which mediate the humoral response of the adaptive immune system. This process is tightly regulated by spatially distinct bone marrow niches where cells, including mesenchymal stem and progenitor cells, endothelial cells, osteoblasts, osteoclasts, and adipocytes, interact with B-cell progenitors to direct their proliferation and differentiation. Recently, the B-cell niche has been implicated in initiating and facilitating B-cell precursor acute lymphoblastic leukemia. Leukemic cells are also capable of remodeling the B-cell niche to promote their growth and survival and evade treatment. Here, we discuss the major cellular components of bone marrow niches for B lymphopoiesis and the role of the malignant B-cell niche in disease development, treatment resistance and relapse. Further understanding of the crosstalk between leukemic cells and bone marrow niche cells will enable development of additional therapeutic strategies that target the niches in order to hinder leukemia progression.
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Affiliation(s)
- Anastasia M. Hughes
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (A.M.H.); (V.K.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
| | - Vincent Kuek
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (A.M.H.); (V.K.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
- School of Biomedical Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Rishi S. Kotecha
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (A.M.H.); (V.K.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
- School of Medicine, University of Western Australia, Perth, WA 6009, Australia
- Department of Clinical Haematology, Oncology, Blood and Marrow Transplantation, Perth Children’s Hospital, Perth, WA 6009, Australia
| | - Laurence C. Cheung
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (A.M.H.); (V.K.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
- Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
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Del Gaizo M, Sergio I, Lazzari S, Cialfi S, Pelullo M, Screpanti I, Felli MP. MicroRNAs as Modulators of the Immune Response in T-Cell Acute Lymphoblastic Leukemia. Int J Mol Sci 2022; 23:829. [PMID: 35055013 PMCID: PMC8776227 DOI: 10.3390/ijms23020829] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 01/10/2022] [Indexed: 02/05/2023] Open
Abstract
Acute lymphoblastic leukaemia (ALL) is an aggressive haematological tumour driven by the malignant transformation and expansion of B-cell (B-ALL) or T-cell (T-ALL) progenitors. The evolution of T-ALL pathogenesis encompasses different master developmental pathways, including the main role played by Notch in cell fate choices during tissue differentiation. Recently, a growing body of evidence has highlighted epigenetic changes, particularly the altered expression of microRNAs (miRNAs), as a critical molecular mechanism to sustain T-ALL. The immune response is emerging as key factor in the complex multistep process of cancer but the role of miRNAs in anti-leukaemia response remains elusive. In this review we analyse the available literature on miRNAs as tuners of the immune response in T-ALL, focusing on their role in Natural Killer, T, T-regulatory and Myeloid-derived suppressor cells. A better understanding of this molecular crosstalk may provide the basis for the development of potential immunotherapeutic strategies in the leukemia field.
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Affiliation(s)
- Martina Del Gaizo
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Roma, Italy; (M.D.G.); (S.L.); (S.C.)
| | - Ilaria Sergio
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy;
| | - Sara Lazzari
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Roma, Italy; (M.D.G.); (S.L.); (S.C.)
| | - Samantha Cialfi
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Roma, Italy; (M.D.G.); (S.L.); (S.C.)
| | - Maria Pelullo
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 00161 Rome, Italy;
| | - Isabella Screpanti
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Roma, Italy; (M.D.G.); (S.L.); (S.C.)
| | - Maria Pia Felli
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy;
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Jiménez-Morales S, Aranda-Uribe IS, Pérez-Amado CJ, Ramírez-Bello J, Hidalgo-Miranda A. Mechanisms of Immunosuppressive Tumor Evasion: Focus on Acute Lymphoblastic Leukemia. Front Immunol 2021; 12:737340. [PMID: 34867958 PMCID: PMC8636671 DOI: 10.3389/fimmu.2021.737340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/27/2021] [Indexed: 01/05/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is a malignancy with high heterogeneity in its biological features and treatments. Although the overall survival (OS) of patients with ALL has recently improved considerably, owing to the application of conventional chemo-therapeutic agents, approximately 20% of the pediatric cases and 40-50% of the adult patients relapse during and after the treatment period. The potential mechanisms that cause relapse involve clonal evolution, innate and acquired chemoresistance, and the ability of ALL cells to escape the immune-suppressive tumor response. Currently, immunotherapy in combination with conventional treatment is used to enhance the immune response against tumor cells, thereby significantly improving the OS in patients with ALL. Therefore, understanding the mechanisms of immune evasion by leukemia cells could be useful for developing novel therapeutic strategies.
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Affiliation(s)
- Silvia Jiménez-Morales
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Ivan Sammir Aranda-Uribe
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Departamento de Farmacología, División de Ciencias de la Salud, Universidad de Quintana Roo, Quintana Roo, Mexico
| | - Carlos Jhovani Pérez-Amado
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Programa de Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Julian Ramírez-Bello
- Departamento de Endocrinología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Alfredo Hidalgo-Miranda
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
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Moatti A, Cohen JL. The TNF-α/TNFR2 Pathway: Targeting a Brake to Release the Anti-tumor Immune Response. Front Cell Dev Biol 2021; 9:725473. [PMID: 34712661 PMCID: PMC8546260 DOI: 10.3389/fcell.2021.725473] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/24/2021] [Indexed: 12/15/2022] Open
Abstract
Newly discovered anti-cancer immunotherapies, such as immune checkpoint inhibitors and chimeric antigen receptor T cells, focus on spurring the anti-tumor effector T cell (Teff) response. Although such strategies have already demonstrated a sustained beneficial effect in certain malignancies, a substantial proportion of treated patients does not respond. CD4+FOXP3+ regulatory T cells (Tregs), a suppressive subset of T cells, can impair anti-tumor responses and reduce the efficacy of currently available immunotherapies. An alternative view that has emerged over the last decade proposes to tackle this immune brake by targeting the suppressive action of Tregs on the anti-tumoral response. It was recently demonstrated that the tumor necrosis factor alpha (TNF-α) tumor necrosis factor receptor 2 (TNFR2) is critical for the phenotypic stabilization and suppressive function of human and mouse Tregs. The broad non-specific effects of TNF-α infusion in patients initially led clinicians to abandon this signaling pathway as first-line therapy against neoplasms. Previously unrecognized, TNFR2 has emerged recently as a legitimate target for anti-cancer immune checkpoint therapy. Considering the accumulation of pre-clinical data on the role of TNFR2 and clinical reports of TNFR2+ Tregs and tumor cells in cancer patients, it is now clear that a TNFR2-centered approach could be a viable strategy, once again making the TNF-α pathway a promising anti-cancer target. Here, we review the role of the TNFR2 signaling pathway in tolerance and the equilibrium of T cell responses and its connections with oncogenesis. We analyze recent discoveries concerning the targeting of TNFR2 in cancer, as well as the advantages, limitations, and perspectives of such a strategy.
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Affiliation(s)
- Audrey Moatti
- Université Paris-Est Créteil Val de Marne, INSERM, IMRB, Créteil, France.,AP-HP, Groupe Hospitalo-Universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Créteil, France
| | - José L Cohen
- Université Paris-Est Créteil Val de Marne, INSERM, IMRB, Créteil, France.,AP-HP, Groupe Hospitalo-Universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Créteil, France
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10
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Host immune system modulation in Ph+ acute lymphoblastic leukemia patients treated with dasatinib and blinatumomab. Blood 2021; 138:2290-2293. [PMID: 34297829 DOI: 10.1182/blood.2021011822] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/04/2021] [Indexed: 11/20/2022] Open
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11
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Zahran AM, Shibl A, Rayan A, Mohamed MAEH, Osman AMM, Saad K, Mahmoud KH, Ghandour AMA, Elsayh KI, El-Badawy O. Increase in polymorphonuclear myeloid-derived suppressor cells and regulatory T-cells in children with B-cell acute lymphoblastic leukemia. Sci Rep 2021; 11:15039. [PMID: 34294814 PMCID: PMC8298505 DOI: 10.1038/s41598-021-94469-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/07/2021] [Indexed: 02/08/2023] Open
Abstract
Our study aimed to evaluate the levels of MDSCs and Tregs in pediatric B-cell acute lymphoblastic leukemia (B-ALL), their relation to patients' clinical and laboratory features, and the impact of these cells on the induction response. This study included 31 pediatric B-ALL patients and 27 healthy controls. All patients were treated according to the protocols of the modified St. Jude Children's Research Hospital total therapy study XIIIB for ALL. Levels of MDSCs and Tregs were analyzed using flow cytometry. We observed a reduction in the levels of CD4 + T-cells and an increase in both the polymorphonuclear MDSCs (PMN-MDSCs) and Tregs. The frequencies of PMN-MDSCs and Tregs were directly related to the levels of peripheral and bone marrow blast cells and CD34 + cells. Complete postinduction remission was associated with reduced percentages of PMN-MDSCs and Tregs, with the level of PMN-MDCs in this subpopulation approaching that of healthy controls. PMN-MDSCs and Tregs jointly play a critical role in maintaining an immune-suppressive state suitable for B-ALL tumor progression. Thereby, they could be independent predictors of B-ALL progress, and finely targeting both PMN-MDSCs and Tregs may be a promising approach for the treatment of B-ALL.
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Affiliation(s)
- Asmaa M Zahran
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Azza Shibl
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Amal Rayan
- Clinical Oncology Department, Faculty of Medicine, Assiut University, Assiut, 71516, Egypt
| | | | - Amira M M Osman
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Khaled Saad
- Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | | | - Aliaa M A Ghandour
- Medical Microbiology and Immunology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Khalid I Elsayh
- Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Omnia El-Badawy
- Medical Microbiology and Immunology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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12
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Kolobarić N, Drenjančević I, Matić A, Šušnjara P, Mihaljević Z, Mihalj M. Dietary Intake of n-3 PUFA-Enriched Hen Eggs Changes Inflammatory Markers' Concentration and Treg/Th17 Cells Distribution in Blood of Young Healthy Adults-A Randomised Study. Nutrients 2021; 13:nu13061851. [PMID: 34071714 PMCID: PMC8229500 DOI: 10.3390/nu13061851] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/28/2022] Open
Abstract
In the present study, we aimed to determine the effects of n-3 polyunsaturated acid (PUFA) supplementation (~1053 mg/per day), i.e., α-linolenic (~230 mg), eicosapentaenoic (~15 mg), and docosahexaenoic acid (~105 mg), through hen eggs, on pro- and anti-inflammatory parameters in healthy individuals (23.8 ± 2.57 years old). Here, we demonstrate differential effects of regular hen eggs (N = 21; W/M = 10/11) and n-3 PUFA-enriched hen eggs (N = 19; W/M = 10/9) consumption on the serum levels of lipid mediators, representation of peripheral T helper cell subsets (recently activated T-helper cells, nTreg, Th17 and non-Th17-IL-17A secreting T-helper lymphocytes) and their functional capacity for cytokine secretion. Both diets significantly altered systemic levels of pro-inflammatory and inflammation resolving lipid mediators; however, only the n-3 PUFAs group showed a significant shift towards anti-inflammatory prostanoids and increased levels of pro-resolving oxylipins. Both study groups showed reduced frequencies of peripheral nTreg lymphocytes and decreased rates of peripheral Th17 cells. Their functional capacity for cytokine secretion was significantly altered only in the n-3 PUFAs group in terms of increased transforming growth factor β-1 and reduced interleukin 6 secretion. Diet supplemented with n-3 PUFAs alters immune response towards inflammation resolving conditions through effects on lipid mediators and cytokine secretion by T lymphocytes in human model without underlying comorbidities.
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Affiliation(s)
- Nikolina Kolobarić
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Ines Drenjančević
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Anita Matić
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Petar Šušnjara
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Zrinka Mihaljević
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Martina Mihalj
- Department of Physiology and Immunology, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia; (N.K.); (I.D.); (A.M.); (P.Š.); (Z.M.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, 31000 Osijek, Croatia
- Correspondence: ; Tel.: +385-3151-2800
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Abnormal bone marrow microenvironment: the “harbor” of acute lymphoblastic leukemia cells. BLOOD SCIENCE 2021; 3:29-34. [PMID: 35402834 PMCID: PMC8975096 DOI: 10.1097/bs9.0000000000000071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/29/2021] [Indexed: 01/07/2023] Open
Abstract
Bone marrow (BM) microenvironment regulates and supports the production of blood cells which are necessary to maintain homeostasis. In analogy to normal hematopoiesis, leukemogenesis is originated from leukemic stem cells (LSCs) which gives rise to more differentiated malignant cells. Leukemia cells occupy BM niches and reconstruct them to support leukemogenesis. The abnormal BM niches are the main sanctuary of LSCs where they can evade chemotherapy-induced death and acquire drug resistance. In this review, we focus on the protective effects of BM niche cells on acute lymphoblastic leukemia cells.
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Pastorczak A, Domka K, Fidyt K, Poprzeczko M, Firczuk M. Mechanisms of Immune Evasion in Acute Lymphoblastic Leukemia. Cancers (Basel) 2021; 13:1536. [PMID: 33810515 PMCID: PMC8037152 DOI: 10.3390/cancers13071536] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) results from a clonal expansion of abnormal lymphoid progenitors of B cell (BCP-ALL) or T cell (T-ALL) origin that invade bone marrow, peripheral blood, and extramedullary sites. Leukemic cells, apart from their oncogene-driven ability to proliferate and avoid differentiation, also change the phenotype and function of innate and adaptive immune cells, leading to escape from the immune surveillance. In this review, we provide an overview of the genetic heterogeneity and treatment of BCP- and T-ALL. We outline the interactions of leukemic cells in the bone marrow microenvironment, mainly with mesenchymal stem cells and immune cells. We describe the mechanisms by which ALL cells escape from immune recognition and elimination by the immune system. We focus on the alterations in ALL cells, such as overexpression of ligands for various inhibitory receptors, including anti-phagocytic receptors on macrophages, NK cell inhibitory receptors, as well as T cell immune checkpoints. In addition, we describe how developing leukemia shapes the bone marrow microenvironment and alters the function of immune cells. Finally, we emphasize that an immunosuppressive microenvironment can reduce the efficacy of chemo- and immunotherapy and provide examples of preclinical studies showing strategies for improving ALL treatment by targeting these immunosuppressive interactions.
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Affiliation(s)
- Agata Pastorczak
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, 91-738 Lodz, Poland;
| | - Krzysztof Domka
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (K.D.); (K.F.); (M.P.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Klaudyna Fidyt
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (K.D.); (K.F.); (M.P.)
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Martyna Poprzeczko
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (K.D.); (K.F.); (M.P.)
| | - Malgorzata Firczuk
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (K.D.); (K.F.); (M.P.)
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Bonmati-Carrion MA, Tomas-Loba A. Melatonin and Cancer: A Polyhedral Network Where the Source Matters. Antioxidants (Basel) 2021; 10:antiox10020210. [PMID: 33535472 PMCID: PMC7912767 DOI: 10.3390/antiox10020210] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/11/2022] Open
Abstract
Melatonin is one of the most phylogenetically conserved signals in biology. Although its original function was probably related to its antioxidant capacity, this indoleamine has been “adopted” by multicellular organisms as the “darkness signal” when secreted in a circadian manner and is acutely suppressed by light at night by the pineal gland. However, melatonin is also produced by other tissues, which constitute its extrapineal sources. Apart from its undisputed chronobiotic function, melatonin exerts antioxidant, immunomodulatory, pro-apoptotic, antiproliferative, and anti-angiogenic effects, with all these properties making it a powerful antitumor agent. Indeed, this activity has been demonstrated to be mediated by interfering with various cancer hallmarks, and different epidemiological studies have also linked light at night (melatonin suppression) with a higher incidence of different types of cancer. In 2007, the World Health Organization classified night shift work as a probable carcinogen due to circadian disruption, where melatonin plays a central role. Our aim is to review, from a global perspective, the role of melatonin both from pineal and extrapineal origin, as well as their possible interplay, as an intrinsic factor in the incidence, development, and progression of cancer. Particular emphasis will be placed not only on those mechanisms related to melatonin’s antioxidant nature but also on the recently described novel roles of melatonin in microbiota and epigenetic regulation.
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Affiliation(s)
- Maria-Angeles Bonmati-Carrion
- Chronobiology Laboratory, Department of Physiology, IMIB-Arrixaca, University of Murcia, 30100 Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable, 28090 Madrid, Spain
- Correspondence: (M.-A.B.-C.); (A.T.-L.)
| | - Antonia Tomas-Loba
- Circadian Rhythm and Cancer Laboratory, Department of Physiology, IMIB-Arrixaca, University of Murcia, 30120 Murcia, Spain
- Correspondence: (M.-A.B.-C.); (A.T.-L.)
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Zhao C, Yang S, Lu W, Liu J, Wei Y, Guo H, Zhang Y, Shi J. Increased NFATC4 Correlates With Poor Prognosis of AML Through Recruiting Regulatory T Cells. Front Genet 2020; 11:573124. [PMID: 33329712 PMCID: PMC7728998 DOI: 10.3389/fgene.2020.573124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022] Open
Abstract
Despite that immune responses play important roles in acute myeloid leukemia (AML), immunotherapy is still not widely used in AML due to lack of an ideal target. Therefore, we identified key immune genes and cellular components in AML by an integrated bioinformatics analysis, trying to find potential targets for AML. Eighty-six differentially expressed immune genes (DEIGs) were identified from 751 differentially expressed genes (DEGs) between AML patients with fair prognosis and poor prognosis from the TCGA database. Among them, nine prognostic immune genes, including NCR2, NPDC1, KIR2DL4, KLC3, TWIST1, SNORD3B-1, NFATC4, XCR1, and LEFTY1, were identified by univariate Cox regression analysis. A multivariable prediction model was established based on prognostic immune genes. Kaplan–Meier survival curve analysis indicated that patients in the high-risk group had a shorter survival rate and higher mortality than those in the low-risk group (P < 0.001), indicating good effectiveness of the model. Furthermore, nuclear factors of activated T cells-4 (NFATC4) was recognized as the key immune gene identified by co-expression of differentially expressed transcription factors (DETFs) and prognostic immune genes. ATP-binding cassette transporters (ABC transporters) were the downstream KEGG pathway of NFATC4, identified by gene set variation analysis (GSVA) and gene set enrichment analysis (GSEA). To explore the immune responses NFATC4 was involved in, an immune gene set of T cell co-stimulation was identified by single-cell GSEA (ssGSEA) and Pearson correlation analysis, positively associated with NFATC4 in AML (R = 0.323, P < 0.001, positive). In order to find out the immune cell types affected by NFATC4, the CIBERSORT algorithm and Pearson correlation analysis were applied, and it was revealed that regulatory T cells (Tregs) have the highest correlation with NFATC4 (R = 0.526, P < 0.001, positive) in AML from 22 subsets of tumor-infiltrating immune cells. The results of this study were supported by multi-omics database validation. In all, our study indicated that NFATC4 was the key immune gene in AML poor prognosis through recruiting Tregs, suggesting that NFATC4 might serve as a new therapy target for AML.
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Affiliation(s)
- Chong Zhao
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Shaoxin Yang
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Lu
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiali Liu
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yanyu Wei
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hezhou Guo
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanjie Zhang
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Shi
- Department of Hematology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Mohammadi S, Abdollahi E, Nezamnia M, Esmaeili SA, Tavasolian F, Sathyapalan T, Sahebkar A. Adoptive transfer of Tregs: A novel strategy for cell-based immunotherapy in spontaneous abortion: Lessons from experimental models. Int Immunopharmacol 2020; 90:107195. [PMID: 33278746 DOI: 10.1016/j.intimp.2020.107195] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 01/05/2023]
Abstract
Since half of the genes are inherited from the paternal side, the maternal immune system has to tolerate the presence of foreign paternal antigens. Regulatory T cells facilitate the development and maintenance of peripheral tissue tolerance of the fetus during pregnancy. Reduction in regulatory T cells is associated with complications of pregnancy, including spontaneous abortion. Recent studies in mouse models have shown that the adoptive transfer of Tregs can prevent spontaneous abortion in mouse models through improving maternal tolerance. Thus, adoptive cell therapy using autologous Tregs could potentially be a novel therapeutic approach for cell-based immunotherapy in women with unexplained spontaneous abortion. Besides, strategies for activating and expanding antigen-specific Tregs ex vivo and in vivo based on pharmacological agents can pave the foundation for an approach incorporating immunotherapy and pharmacotherapy. This review aims to elaborate on the current understanding of the therapeutic potential of the adoptive transfer of Tregs in the treatment of spontaneous abortion disease.
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Affiliation(s)
- Sasan Mohammadi
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Abdollahi
- Department of Medical Immunology and Allergy, Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Mater Research Institute-University of Queensland, Translational Research Institute, South Brisbane, Australia.
| | - Maria Nezamnia
- Department of Obstetrics and Gynecology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Seyed-Alireza Esmaeili
- Immunology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fataneh Tavasolian
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, United Kingdom
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Halal Research Center of IRI, FDA, Tehran, Iran; Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland.
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18
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Delia M, Carluccio P, Mestice A, Frappampina R, Albano F, Specchia G, Musto P. After Treatment Decrease of Bone Marrow Tregs and Outcome in Younger Patients with Newly Diagnosed Acute Myeloid Leukemia. J Immunol Res 2020; 2020:2134647. [PMID: 33204734 PMCID: PMC7657695 DOI: 10.1155/2020/2134647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/16/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
An emerging body of evidence demonstrates that defects in antileukemic effector cells in patients with acute myeloid leukemia (AML) can contribute to the development and/or persistence of the disease. In particular, immune suppressive regulatory T cells (Tregs) may contribute to this defective antileukemic immune response, being recruited by bone marrow leukemic cells to evade immune surveillance. We evaluated Tregs (CD4+/CD45RA-/CD25high/CD127low), performing multiparametric flow cytometry on freshly collected bone marrow aspirate (BMA), in addition to the usual molecular and cytogenetic work-up in newly diagnosed AML patients to look for any correlation between Tregs and the overall response rate (ORR). We studied 39 AML younger patients (<65 years), all treated with standard induction chemotherapy. ORR (complete remission (CR)+CR with incomplete hematologic recovery (CRi)) was documented in 21 out of 39 patients (54%); two partial responder patients were also recorded. Apart from the expected impact of the molecular-cytogenetic group (p = 0.03) and the NPM mutation (p = 0.05), diagnostic BMA Tregs did not show any correlation with ORR. However, although BMA Tregs did not differ in the study population after treatment, their counts significantly decreased in responder patients (p = 0.039), while no difference was documented in nonresponder ones. This suggested that the removal of Treg cells is able to evoke and enhance anti-AML immune response. However, the role of BMA Tregs in mediating immune system-AML interactions in the diagnostic and posttreatment phase should be confirmed in a greater number of patients.
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MESH Headings
- Adult
- Aged
- Biomarkers
- Biomarkers, Tumor
- Biopsy, Needle
- Bone Marrow/pathology
- Disease Management
- Female
- Humans
- Immunophenotyping
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/therapy
- Lymphocyte Count
- Male
- Middle Aged
- Mutation
- Prognosis
- ROC Curve
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Young Adult
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Affiliation(s)
- Mario Delia
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
| | - Paola Carluccio
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
| | - Anna Mestice
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
| | - Roberta Frappampina
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
| | - Francesco Albano
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
| | | | - Pellegrino Musto
- Hematology and Bone Marrow Transplantation Unit-Azienda Ospedaliero-Universitaria Consorziale Policlinico, Department of Emergency and Organ Transplantation-University of Bari “Aldo Moro”, Bari, Italy
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Bansal AK, Sharawat SK, Gupta R, Vishnubhatla S, Dhawan D, Bakhshi S. Regulatory T cells in pediatric AML are associated with disease load and their serial assessment suggests role in leukemogenesis. AMERICAN JOURNAL OF BLOOD RESEARCH 2020; 10:90-96. [PMID: 32923088 PMCID: PMC7486484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Regulatory T cells (Tregs) modulate immune system by suppressing other immune cells. In current exploratory era of immunotherapy, the detailed enumeration data of Tregs cells in pediatric AML is lacking. AIM Serial assessment of Treg absolute values in pediatric AML at diagnosis and follow-up; and correlating with outcome. STUDY DESIGN Prospective study. METHODS Study objectives were determining Tregs (CD4+CD25+Foxp3+) were assessed at diagnosis, post-induction, post-consolidation, 3 and 6 months follow-up and relapse in 30 consecutive pediatric AML patients. RESULTS Patients with AML had higher baseline Treg frequencies than controls (P=0.0001). Female patients, WBC > 50,000 × 103/L and hypoalbuminemia were significantly associated with high Treg absolute values. Baseline Tregs were not associated with DFS, EFS and OS. Tregs significantly decreased after induction chemotherapy (P=0.028). Using generalized-estimating-equation regression model, Treg absolute numbers continued to decrease at each assessment time point from post-induction till 6 months follow-up (P=0.029) in those who are in continuous CR; however, in those patients who relapsed, Tregs did not change from post-induction till last follow-up preceding relapse (P=0.39). CONCLUSIONS This first study in pediatric AML demonstrates that Tregs are increased at diagnosis; the increased number is significantly associated with female gender and high WBC count. Tregs decrease after induction chemotherapy as compared to their baseline value. Post CR, Treg absolute values continue to decrease significantly in those who stay in CR but not so in those who relapse; this suggests their possible role in leukemogenesis.
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Affiliation(s)
- Anuj Kumar Bansal
- Department of Medical OncologyNew Delhi-110029, India
- Department of Dr. B.R.A. Institute Rotary Cancer HospitalNew Delhi-110029, India
- Department of All India Institute of Medical SciencesNew Delhi-110029, India
| | - Surender Kumar Sharawat
- Department of Medical OncologyNew Delhi-110029, India
- Department of Dr. B.R.A. Institute Rotary Cancer HospitalNew Delhi-110029, India
- Department of All India Institute of Medical SciencesNew Delhi-110029, India
| | - Ritu Gupta
- Department of Laboratory OncologyNew Delhi-110029, India
- Department of Dr. B.R.A. Institute Rotary Cancer HospitalNew Delhi-110029, India
| | - Sreenivas Vishnubhatla
- Department of BiostatisticsNew Delhi-110029, India
- Department of All India Institute of Medical SciencesNew Delhi-110029, India
| | - Deepa Dhawan
- Department of Medical OncologyNew Delhi-110029, India
- Department of Dr. B.R.A. Institute Rotary Cancer HospitalNew Delhi-110029, India
- Department of All India Institute of Medical SciencesNew Delhi-110029, India
| | - Sameer Bakhshi
- Department of Medical OncologyNew Delhi-110029, India
- Department of Dr. B.R.A. Institute Rotary Cancer HospitalNew Delhi-110029, India
- Department of All India Institute of Medical SciencesNew Delhi-110029, India
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20
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Mendez LM, Posey RR, Pandolfi PP. The Interplay Between the Genetic and Immune Landscapes of AML: Mechanisms and Implications for Risk Stratification and Therapy. Front Oncol 2019; 9:1162. [PMID: 31781488 PMCID: PMC6856667 DOI: 10.3389/fonc.2019.01162] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/17/2019] [Indexed: 12/13/2022] Open
Abstract
AML holds a unique place in the history of immunotherapy by virtue of being among the first malignancies in which durable remissions were achieved with "adoptive immunotherapy," now known as allogeneic stem cell transplantation. The successful deployment of unselected adoptive cell therapy established AML as a disease responsive to immunomodulation. Classification systems for AML have been refined and expanded over the years in an effort to capture the variability of this heterogeneous disease and risk-stratify patients. Current systems increasingly incorporate information about cytogenetic alterations and genetic mutations. The advent of next generation sequencing technology has enabled the comprehensive identification of recurrent genetic mutations, many with predictive power. Recurrent genetic mutations found in AML have been intensely studied from a cell intrinsic perspective leading to the genesis of multiple, recently approved targeted therapies including IDH1/2-mutant inhibitors and FLT3-ITD/-TKD inhibitors. However, there is a paucity of data on the effects of these targeted agents on the leukemia microenvironment, including the immune system. Recently, the phenomenal success of checkpoint inhibitors and CAR-T cells has re-ignited interest in understanding the mechanisms leading to immune dysregulation and suppression in leukemia, with the objective of harnessing the power of the immune system via novel immunotherapeutics. A paradigm has emerged that places crosstalk with the immune system at the crux of any effective therapy. Ongoing research will reveal how AML genetics inform the composition of the immune microenvironment paving the way for personalized immunotherapy.
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Affiliation(s)
- Lourdes M. Mendez
- Department of Medicine and Pathology, Cancer Research Institute, Beth Israel Deaconess Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Ludwig Center at Harvard, Harvard Medical School, Boston, MA, United States
| | - Ryan R. Posey
- Department of Medicine and Pathology, Cancer Research Institute, Beth Israel Deaconess Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Ludwig Center at Harvard, Harvard Medical School, Boston, MA, United States
| | - Pier Paolo Pandolfi
- Department of Medicine and Pathology, Cancer Research Institute, Beth Israel Deaconess Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Ludwig Center at Harvard, Harvard Medical School, Boston, MA, United States
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21
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Beneficial and Deleterious Effects of Female Sex Hormones, Oral Contraceptives, and Phytoestrogens by Immunomodulation on the Liver. Int J Mol Sci 2019; 20:ijms20194694. [PMID: 31546715 PMCID: PMC6801544 DOI: 10.3390/ijms20194694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/13/2019] [Accepted: 09/20/2019] [Indexed: 12/11/2022] Open
Abstract
The liver is considered the laboratory of the human body because of its many metabolic processes. It accomplishes diverse activities as a mixed gland and is in continuous cross-talk with the endocrine system. Not only do hormones from the gastrointestinal tract that participate in digestion regulate the liver functions, but the sex hormones also exert a strong influence on this sexually dimorphic organ, via their receptors expressed in liver, in both health and disease. Besides, the liver modifies the actions of sex hormones through their metabolism and transport proteins. Given the anatomical position and physiological importance of liver, this organ is evidenced as an immune vigilante that mediates the systemic immune response, and, in turn, the immune system regulates the hepatic functions. Such feedback is performed by cytokines. Pro-inflammatory and anti-inflammatory cytokines are strongly involved in hepatic homeostasis and in pathological states; indeed, female sex hormones, oral contraceptives, and phytoestrogens have immunomodulatory effects in the liver and the whole organism. To analyze the complex and interesting beneficial or deleterious effects of these drugs by their immunomodulatory actions in the liver can provide the basis for either their pharmacological use in therapeutic treatments or to avoid their intake in some diseases.
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