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Delaleu J, Bouaziz JD. Overview of Neutrophilic Biology, Pathophysiology, and Classification of Neutrophilic Dermatoses. Dermatol Clin 2024; 42:147-156. [PMID: 38423677 DOI: 10.1016/j.det.2023.08.002] [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] [Indexed: 03/02/2024]
Abstract
Neutrophilic dermatoses are a group of inflammatory skin conditions characterized by a neutrophilic infiltrate on histopathology with no evidence of infection. These conditions present with a wide range of clinical manifestations, including pustules, bullae, abscesses, papules, nodules, plaques, and ulcers. The classification of neutrophilic dermatoses is based on the localization of neutrophils in the skin. The pathogenic mechanisms of neutrophilic dermatoses involve autoinflammation, neutrophilic dysfunction, clonal somatic mutation and differentiation of the myeloid precursors as encountered in myeloid neoplasm.
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Affiliation(s)
- Jérémie Delaleu
- Dermatology Department, Saint Louis Hospital, APHP Nord Université Paris Cité and INSERM u976 "Human Immunology, Pathophysiology and Immunotherapy", Paris, France
| | - Jean-David Bouaziz
- Dermatology Department, Saint Louis Hospital, APHP Nord Université Paris Cité and INSERM u976 "Human Immunology, Pathophysiology and Immunotherapy", Paris, France.
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Rani R, Nayak M, Nayak B. Exploring the reprogramming potential of B cells and comprehending its clinical and therapeutic perspective. Transpl Immunol 2023; 78:101804. [PMID: 36921730 DOI: 10.1016/j.trim.2023.101804] [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: 11/17/2022] [Revised: 02/08/2023] [Accepted: 02/21/2023] [Indexed: 03/14/2023]
Abstract
Initiating from multipotent progenitors, the lineages extrapolated from hematopoietic stem cells are determined by transcription factors specific to each of them. The commitment factors assist in the differentiation of progenitor cells into terminally differentiated cells. B lymphocytes constitute a population of cells that expresses clonally diverse cell surface immunoglobulin (Ig) receptors specific to antigenic epitopes. B cells are a significant facet of the adaptive immune system. The secreted antibodies corresponding to the B cell recognize the antigens via the B cell receptor (BCR). Following antigen recognition, the B cell is activated and thereafter undergoes clonal expansion and proliferation to become memory B cells. The essence of 'cellular reprogramming' has aided in reliably altering the cells to desired tissue type. The potential of reprogramming has been harnessed to decipher and find solutions for various genetically inherited diseases and degenerative disorders. B lymphocytes can be reprogrammed to their initial naive state from where they get differentiated into any lineage or cell type similar to a pluripotent stem cell which can be accomplished by the deletion of master regulators of the B cell lineage. B cells can be reprogrammed into pluripotent stem cells and also can undergo transdifferentiation at the midway of cell differentiation to other cell types. Mandated expression of C/EBP in specialized B cells corresponds to their fast and effective reprogramming into macrophages, reversing the cell fate of these lymphocytes and allowing them to differentiate freshly into other types of cells. The co-expression of C/EBPα and OKSM (Oct4, Sox2, Klf4, c-Myc) amplified the reprogramming efficiency of B lymphocytes. Various human somatic cells including the immune cells are compliant to reprogramming which paves a path for opportunities like autologous tissue grafts, blood transfusion, and cancer immunotherapy. The ability to reprogram B cells offers an unprecedented opportunity for developing a therapeutic approach for several human diseases. Here, we will focus on all the proteins and transcription factors responsible for the developmental commitment of B lymphocytes and how it is harnessed in various applications.
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Affiliation(s)
- Reetika Rani
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha. 769008, India
| | - Madhusmita Nayak
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha. 769008, India
| | - Bismita Nayak
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha. 769008, India.
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Delaleu J, Lepelletier C, Calugareanu A, De Masson A, Charvet E, Petit A, Giurgea I, Amselem S, Karabina S, Jachiet M, Mahevas T, Ram-Wolff C, Vignon-Pennamen MD, Bagot M, Battistella M, Bouaziz JD. Neutrophilic dermatoses. Rev Med Interne 2022; 43:727-738. [PMID: 35870984 DOI: 10.1016/j.revmed.2022.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/27/2022] [Accepted: 06/12/2022] [Indexed: 10/17/2022]
Abstract
Neutrophilic dermatoses (ND) are a group of inflammatory skin conditions characterized by a neutrophilic infiltrate on histopathology with no evidence of infection. ND are classified based upon the localization of neutrophils within the skin and clinical features. Recent findings suggest that ND are due to two main mechanisms: i) a polyclonal hereditary activation of the innate immune system (polygenic or monogenic); or ii) a clonal somatic activation of myeloid cells such as encountered in myelodysplastic syndrome or VEXAS syndrome. ND belong to internal medicine as a great number of patients with ND suffer from an underlying condition (such as hematological malignancy, inflammatory bowel disease, auto-immune and auto-inflammatory diseases). ND are diagnoses of exclusion and physicians should always consider differential diagnoses, particularly skin infections. Here, we review the pathophysiology and classification of the main ND (i.e., subcorneal pustular dermatosis (Sneddon-Wilkinson Disease) and Intercellular IgA dermatoses, aseptic pustulosis of the folds, Sweet syndrome, neutrophilic eccrine hidradenitis, pyoderma gangrenosum, erythema elevatum diutinum, neutrophilic urticarial dermatosis and neutrophilic panniculitis), their clinical and histopathological features, and we highlight the investigations that are useful to identify ND-associated diseases and to exclude the differential diagnoses.
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Affiliation(s)
- J Delaleu
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France; Inserm u933, "Childhood genetic disorders", service de génétique, Sorbonne université, hôpital Armand-Trousseau, AP-HP, Paris, France
| | - C Lepelletier
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - A Calugareanu
- Service de dermatologie, Severe Cutaneous Adverse Reaction (SCAR) Regional Center, HCL, CHU de Lyon Centre, Lyon, France
| | - A De Masson
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - E Charvet
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - A Petit
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - I Giurgea
- Inserm u933, "Childhood genetic disorders", service de génétique, Sorbonne université, hôpital Armand-Trousseau, AP-HP, Paris, France
| | - S Amselem
- Inserm u933, "Childhood genetic disorders", service de génétique, Sorbonne université, hôpital Armand-Trousseau, AP-HP, Paris, France
| | - S Karabina
- Inserm u933, "Childhood genetic disorders", service de génétique, Sorbonne université, hôpital Armand-Trousseau, AP-HP, Paris, France
| | - M Jachiet
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - T Mahevas
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - C Ram-Wolff
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - M-D Vignon-Pennamen
- Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France; Service d'anatomie pathologique, hôpital Saint-Louis, AP-HP, Paris, France
| | - M Bagot
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France
| | - M Battistella
- Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France; Service d'anatomie pathologique, hôpital Saint-Louis, AP-HP, Paris, France
| | - J-D Bouaziz
- Service de dermatologie, hôpital Saint-Louis, AP-HP, Paris, France; Inserm u976 "Human Immunology, Pathophysiology and Immunotherapy", université Paris Cité, Paris, France.
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Dong L, Wei C, Xiong S, Yu P, Zhou R, Cheng L. Spliceosome inhibitor induces human hematopoietic progenitor cell reprogramming toward stemness. Exp Hematol Oncol 2022; 11:37. [PMID: 35689254 PMCID: PMC9188107 DOI: 10.1186/s40164-022-00288-9] [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: 03/18/2022] [Accepted: 05/16/2022] [Indexed: 11/14/2022] Open
Abstract
The application of hematopoietic stem cells (HSCs) has been restricted due to limited cell sources and conventional methods for generating these cells by cell expansion and pluripotent stem cell differentiation have not been clinically achieved. Cell reprogramming technique provides a new hope for generating desirable cells. We previously reported that mouse differentiated hematopoietic cell reprogramming could be induced by small molecule compounds to generate hematopoietic stem/progenitor-like cells, whether the human hematopoietic cells could also be reprogrammed into HSCs by chemical compounds remains elusive. Here, we demonstrated for the first time that human committed hematopoietic progenitors could be reprogrammed into multipotent progenitors by spliceosome inhibitor. Combination of single cell RNA-sequencing and genetic lineage tracing including exogenous barcodes and endogenous mitochondrial DNA mutations confirmed the reprogramming procession. Although the small chemical compound inhibiting spliceosome function only induces the differentiated hematopoietic progenitors to acquire plasticity and reprograms them into multipotent progenitors but not stem cells so far, this study still provides a proof-of-concept strategy for generating HSCs based on combining two independent steps together in future, first differentiating rare HSCs into large number of progenitors then reprogramming these progenitors into huge number of HSCs. Further dissecting the mechanism underlying spliceosome inhibitor-induced human hematopoietic cell reprogramming in future will help us comprehensively understanding not only the chemical reprogramming to generate desirable human cells for clinical translation but also hematopoiesis under physiological and pathological conditions.
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Affiliation(s)
- Liaoliao Dong
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuijin Wei
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shumin Xiong
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Yu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ren Zhou
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Cheng
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Li Z, Sun MZ, Lv X, Guo C, Liu S. ETV6 Regulates Hemin-Induced Erythroid Differentiation of K562 Cells through Mediating the Raf/MEK/ERK Pathway. Biol Pharm Bull 2022; 45:250-259. [PMID: 35228392 DOI: 10.1248/bpb.b21-00632] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
As a member of transcription factor E-Twenty Six (ETS) family, ETS variant 6 (ETV6) plays significant role in hematopoiesis and embryonic development. ETV6 dysexpression also involved in the occurrence, development and progression of cancers and leukemia. In current work, we hypothesized that ETV6 plays a role in erythroid differentiation of chronic myeloid leukemia (CML). We found the protein expression level of ETV6 was significantly upregulated during hemin-induced erythroid differentiation of K562 cells. Moreover, overexpression of ETV6 inhibited erythroid differentiation in hemin-induced K562 cells with decreased numbers of benzidine-positive cells and decreased expression levels of erythroid differentiation specific markers glycophorin (GPA), CD71, hemoglobin A (HBA), α-globin, γ-globin and ε-globin. Conversely, ETV6 knockdown promoted erythroid differentiation in hemin-induced K562 cells. Furthermore, ETV6 expression level slightly positively with the proliferation capacity of K562 cells treated with hemin. Mechanistically, ETV6 overexpression inhibited fibrosarcoma/mitogen activated extracellular signal-regulated kinase/extracellular regulated protein kinase (Raf/MEK/ERK) pathway, ETV6 knockdown activated the Raf/MEK/ERK pathway. Collectively, the current work demonstrates that ETV6 plays an inhibitory role in the regulation of K562 cell erythroid differentiation via Raf/MEK/ERK pathway, it would be a potentially therapeutic target for dyserythropoiesis.
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Affiliation(s)
- Zhaopeng Li
- Department of Biochemistry, College of Basic Medical Sciences, Dalian Medical University
| | - Ming-Zhong Sun
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University
| | - Xinxin Lv
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University
| | - Chunmei Guo
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University
| | - Shuqing Liu
- Department of Biochemistry, College of Basic Medical Sciences, Dalian Medical University
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Zhou Y, Wei C, Xiong S, Dong L, Chen Z, Chen SJ, Cheng L. Trajectory of chemical cocktail-induced neutrophil reprogramming. J Hematol Oncol 2020; 13:171. [PMID: 33302977 PMCID: PMC7727137 DOI: 10.1186/s13045-020-01008-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/22/2020] [Indexed: 12/20/2022] Open
Abstract
Hematopoietic reprogramming holds great promise for generating functional target cells and provides new angle for understanding hematopoiesis. We reported before for the first time that diverse differentiated hematopoietic cell lineages could be reprogrammed back into hematopoietic stem/progenitor cell-like cells by chemical cocktail. However, the exact cell types of induced cells and reprogramming trajectory remain elusive. Here, based on genetic tracing method CellTagging and single-cell RNA sequencing, it is found that neutrophils could be reprogrammed into multipotent progenitors, which acquire multi-differentiation potential both in vitro and in vivo, including into lymphoid cells. Construction of trajectory map of the reprogramming procession shows that mature neutrophils follow their canonical developmental route reversely into immature ones, premature ones, granulocyte/monocyte progenitors, common myeloid progenitors, and then the terminal cells, which is stage by stage or skips intermediate stages. Collectively, this study provides a precise dissection of hematopoietic reprogramming procession and sheds light on chemical cocktail-induction of hematopoietic stem cells.
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Affiliation(s)
- Yi Zhou
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chuijin Wei
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Shumin Xiong
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Liaoliao Dong
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhu Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Sai-Juan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Lin Cheng
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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