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Liu S, Gao Y, Feng X, Xu Y, Hu M, Fei H, Zheng H, Huang J, Li T, Zhao C, Sun L. A novel study on CXXC5: unraveling its regulatory mechanisms in hematopoietic stem cell biology through proteomics and gene editing. Genes Genomics 2024; 46:1133-1147. [PMID: 39150611 DOI: 10.1007/s13258-024-01540-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 06/05/2024] [Indexed: 08/17/2024]
Abstract
BACKGROUND This study investigates the role of CXXC5 in the self-renewal and differentiation of hematopoietic stem cells (HSCs) within the bone marrow microenvironment, utilizing advanced methodologies such as single-cell RNA sequencing (scRNA-seq), CRISPR-Cas9, and proteomic analysis. METHODS We employed flow cytometry to isolate HSCs from bone marrow samples, followed by scRNA-seq analysis using the 10x Genomics platform to examine cell clustering and CXXC5 expression patterns. CRISPR-Cas9 and lentiviral vectors facilitated the knockout and overexpression of CXXC5 in HSCs. The impact on HSCs was assessed through qRT-PCR, Western blot, CCK-8, CFU, and LTC-IC assays, alongside flow cytometry to measure apoptosis and cell proportions. A mouse model was also used to evaluate the effects of CXXC5 manipulation on HSC engraftment and survival rates. RESULTS Our findings highlight the diversity of cell clustering and the significant role of CXXC5 in HSC regulation. Knockout experiments showed reduced proliferation and accelerated differentiation, whereas overexpression led to enhanced proliferation and delayed differentiation. Proteomic analysis identified key biological processes influenced by CXXC5, including cell proliferation, differentiation, and apoptosis. In vivo results demonstrated that CXXC5 silencing impaired HSC engraftment in a bone marrow transplantation model. CONCLUSION CXXC5 is crucial for the regulation of HSC self-renewal and differentiation in the bone marrow microenvironment. Its manipulation presents a novel approach for enhancing HSC function and provides a potential therapeutic target for hematological diseases.
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Affiliation(s)
- Shanshan Liu
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Yan Gao
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Xianqi Feng
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Yujie Xu
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Minghui Hu
- Clinical Lab, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hairong Fei
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Hongying Zheng
- Clinical Lab, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Junxia Huang
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Tianlan Li
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China
| | - Chunting Zhao
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China.
| | - Lingjie Sun
- Department of Hematology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Shinan District, Qingdao, Shandong Province, China.
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Sharifi MJ, Xu L, Nasiri N, Ashja‐Arvan M, Soleimanzadeh H, Ganjalikhani‐Hakemi M. Immune-dysregulation harnessing in myeloid neoplasms. Cancer Med 2024; 13:e70152. [PMID: 39254117 PMCID: PMC11386321 DOI: 10.1002/cam4.70152] [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: 05/05/2024] [Revised: 08/02/2024] [Accepted: 08/16/2024] [Indexed: 09/11/2024] Open
Abstract
Myeloid malignancies arise in bone marrow microenvironments and shape these microenvironments in favor of malignant development. Immune suppression is one of the most important stages in myeloid leukemia progression. Leukemic clone expansion and immune dysregulation occur simultaneously in bone marrow microenvironments. Complex interactions emerge between normal immune system elements and leukemic clones in the bone marrow. In recent years, researchers have identified several of these pathological interactions. For instance, recent works shows that the secretion of inflammatory cytokines such as tumor necrosis factor-α (TNF-α), from bone marrow stromal cells contributes to immune dysregulation and the selective proliferation of JAK2V617F+ clones in myeloproliferative neoplasms. Moreover, inflammasome activation and sterile inflammation result in inflamed microenvironments and the development of myelodysplastic syndromes. Additional immune dysregulations, such as exhaustion of T and NK cells, an increase in regulatory T cells, and impairments in antigen presentation are common findings in myeloid malignancies. In this review, we discuss the role of altered bone marrow microenvironments in the induction of immune dysregulations that accompany myeloid malignancies. We also consider both current and novel therapeutic strategies to restore normal immune system function in the context of myeloid malignancies.
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Affiliation(s)
- Mohammad Jafar Sharifi
- Division of Laboratory Hematology and Blood Banking, Department of Medical Laboratory Sciences, School of Paramedical SciencesShiraz University of Medical SciencesShirazIran
| | - Ling Xu
- Institute of Hematology, School of Medicine, Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan UniversityGuangzhouChina
| | - Nahid Nasiri
- Division of Laboratory Hematology and Blood Banking, Department of Medical Laboratory Sciences, School of Paramedical SciencesShiraz University of Medical SciencesShirazIran
| | - Mehnoosh Ashja‐Arvan
- Regenerative and Restorative Medicine Research Center (REMER)Research Institute of Health sciences and Technology (SABITA), Istanbul Medipol UniversityIstanbulTurkey
| | - Hadis Soleimanzadeh
- Division of Laboratory Hematology and Blood Banking, Department of Medical Laboratory Sciences, School of Paramedical SciencesShiraz University of Medical SciencesShirazIran
| | - Mazdak Ganjalikhani‐Hakemi
- Regenerative and Restorative Medicine Research Center (REMER)Research Institute of Health sciences and Technology (SABITA), Istanbul Medipol UniversityIstanbulTurkey
- Department of Immunology, Faculty of MedicineIsfahan University of Medical SciencesIsfahanIran
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Li Z, Yao X, Zhang J, Yang J, Ni J, Wang Y. Exploring the bone marrow micro environment in thalassemia patients: potential therapeutic alternatives. Front Immunol 2024; 15:1403458. [PMID: 39161767 PMCID: PMC11330836 DOI: 10.3389/fimmu.2024.1403458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/22/2024] [Indexed: 08/21/2024] Open
Abstract
Genetic mutations in the β-globin gene lead to a decrease or removal of the β-globin chain, causing the build-up of unstable alpha-hemoglobin. This condition is referred to as beta-thalassemia (BT). The present treatment strategies primarily target the correction of defective erythropoiesis, with a particular emphasis on gene therapy and hematopoietic stem cell transplantation. However, the presence of inefficient erythropoiesis in BT bone marrow (BM) is likely to disturb the previously functioning BM microenvironment. This includes accumulation of various macromolecules, damage to hematopoietic function, destruction of bone cell production and damage to osteoblast(OBs), and so on. In addition, the changes of BT BM microenvironment may have a certain correlation with the occurrence of hematological malignancies. Correction of the microenvironment can be achieved through treatments such as iron chelation, antioxidants, hypoglycemia, and biologics. Hence, This review describes damage in the BT BM microenvironment and some potential remedies.
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Affiliation(s)
- Zengzheng Li
- Department of Hematology, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
- Yunnan Province Clinical Research Center for Hematologic Disease, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
- Yunnan Provincial Clinical Medical Center for Blood Diseases and Thrombosis Prevention and Treatment, Kunming, Yunnan, China
| | - Xiangmei Yao
- Department of Hematology, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
- Yunnan Province Clinical Research Center for Hematologic Disease, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
- Yunnan Provincial Clinical Medical Center for Blood Diseases and Thrombosis Prevention and Treatment, Kunming, Yunnan, China
| | - Jie Zhang
- Department of Medical Genetics, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jinghui Yang
- Department of Pediatrics, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Junxue Ni
- Hospital Office, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Yajie Wang
- Department of Hematology, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
- Yunnan Province Clinical Research Center for Hematologic Disease, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
- Yunnan Provincial Clinical Medical Center for Blood Diseases and Thrombosis Prevention and Treatment, Kunming, Yunnan, China
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Williams MTS, Guzman ML. Cancer microenvironment and pharmacological interventions. Br J Pharmacol 2024; 181:213-215. [PMID: 38148105 DOI: 10.1111/bph.16279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023] Open
Affiliation(s)
- Mark T S Williams
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Monica L Guzman
- Department of Medicine, Division of Hematology and Oncology, Weill Cornell Medicine, New York, New York, USA
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Ceol CJ. Microenvironmental GABA Signaling Regulates Melanomagenesis through Reciprocal Melanoma-Keratinocyte Communication. Cancer Discov 2023; 13:2128-2130. [PMID: 37794841 PMCID: PMC10860381 DOI: 10.1158/2159-8290.cd-23-0843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
SUMMARY GABA signaling by melanoma cells was found by Tagore and colleagues to trigger keratinocyte-driven growth of melanomas. This study reveals new roles for nonneuronal signaling by a neurotransmitter in regulating tumor initiation and outgrowth. See related article by Tagore et al., p. 2270 (4).
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Affiliation(s)
- Craig J. Ceol
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
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