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Wang T, Zhang X, Jia M, Yang A, Liu J, Wen T, Meng J, Xu H. Hydrophilic Realgar Nanocrystals Prolong the Survival of Refractory Acute Myeloid Leukemia Mice Through Inducing Multi-Lineage Differentiation and Apoptosis. Int J Nanomedicine 2022; 17:2191-2202. [PMID: 35599749 PMCID: PMC9122054 DOI: 10.2147/ijn.s358469] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/11/2022] [Indexed: 12/25/2022] Open
Affiliation(s)
- Tao Wang
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Xue Zhang
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Mengfan Jia
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Aiyun Yang
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Jian Liu
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Tao Wen
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Jie Meng
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
| | - Haiyan Xu
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China
- Correspondence: Haiyan Xu; Jie Meng, Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, People’s Republic of China, Tel +8610 69156437; +8610 65135502, Email ;
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Zhou B, Zhang W, Yan Z, Zhao B, Zhao J, Feng W, Chen X, Li C, Liu KX. MicroRNA-26b-5p Targets DAPK1 to Reduce Intestinal Ischemia/Reperfusion Injury via Inhibition of Intestinal Mucosal Cell Apoptosis. Dig Dis Sci 2022; 67:1794-1805. [PMID: 33839982 PMCID: PMC9142477 DOI: 10.1007/s10620-021-06975-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/26/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Emerging evidence has suggested that miRNAs are important regulators of intestinal I/R injury, but their function in this context remains elusive. AIMS To evaluate the role of miR-26b-5p in intestinal I/R injury. METHODS We utilized in vivo murine models of intestinal I/R and in vitro Mode-K cell-based models of oxygen and glucose deprivation/reperfusion (OGD/R) to examine the function of miR-26b-5p in intestinal I/R injury. The expression of miR-26b-5p in intestinal mucosa and Mode-K cell was detected by RT-PCR. HE staining and Chiu's score were used to evaluate intestinal mucosa injury severity. Apoptosis was detected by TUNEL stain, flow cytometry, and western blot. TargetScan and StarBase prediction algorithms were applied to predict putative target genes of miR-26b-5p and validated by luciferase reporter analyses. RESULTS We found that the expression of miR-26b-5p in intestinal mucosa was markedly decreased during I/R injury. We additionally found miR-26b-5p overexpression to markedly disrupt intestinal I/R- or OGD/R-induced injury in vivo and in vitro, whereas inhibiting this miRNA had an adverse impact and resulted in increased intestinal tissue injury and Mode-K cell damage. From a mechanistic perspective, miR-26b-5p was predicted to target DAPK1, which was related to cellular apoptosis. Luciferase reporter assay results confirmed that miR-26b-5p directly targets DAPK1 in Mode-K cells, thereby suppressing OGD/R-induced cell apoptosis. CONCLUSION Our findings show that miR-26b-5p may prevent intestinal I/R injury via targeting DAPK1 and inhibiting intestinal mucosal cell apoptosis, suggesting that this miRNA may be a viable target for the treatment of intestinal I/R injury.
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Affiliation(s)
- Bowei Zhou
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Wenjuan Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Zhengzheng Yan
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Bingcheng Zhao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Jin Zhao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Weijie Feng
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Xiaodong Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Cai Li
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Ke-Xuan Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China.
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Saultier P, Cabantous S, Puceat M, Peiretti F, Bigot T, Saut N, Bordet JC, Canault M, van Agthoven J, Loosveld M, Payet-Bornet D, Potier D, Falaise C, Bernot D, Morange PE, Alessi MC, Poggi M. GATA1 pathogenic variants disrupt MYH10 silencing during megakaryopoiesis. J Thromb Haemost 2021; 19:2287-2301. [PMID: 34060193 DOI: 10.1111/jth.15412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/24/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND GATA1 is an essential transcription factor for both polyploidization and megakaryocyte (MK) differentiation. The polyploidization defect observed in GATA1 variant carriers is not well understood. OBJECTIVE To extensively phenotype two pedigrees displaying different variants in the GATA1 gene and determine if GATA1 controls MYH10 expression levels, a key modulator of MK polyploidization. METHOD A total of 146 unrelated propositi with constitutional thrombocytopenia were screened on a multigene panel. We described the genotype-phenotype correlation in GATA1 variant carriers and investigated the effect of these novel variants on MYH10 transcription using luciferase constructs. RESULTS The clinical profile associated with the p.L268M variant localized in the C terminal zinc finger was unusual in that the patient displayed bleeding and severe platelet aggregation defects without early-onset thrombocytopenia. p.N206I localized in the N terminal zinc finger was associated, on the other hand, with severe thrombocytopenia (15G/L) in early life. High MYH10 levels were evidenced in platelets of GATA1 variant carriers. Analysis of MKs anti-GATA1 chromatin immunoprecipitation-sequencing data revealed two GATA1 binding sites, located in the 3' untranslated region and in intron 8 of the MYH10 gene. Luciferase reporter assays showed their respective role in the regulation of MYH10 gene expression. Both GATA1 variants significantly alter intron 8 driven MYH10 transcription. CONCLUSION The discovery of an association between MYH10 and GATA1 is a novel one. Overall, this study suggests that impaired MYH10 silencing via an intronic regulatory element is the most likely cause of GATA1-related polyploidization defect.
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Affiliation(s)
- Paul Saultier
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
- Department of Pediatric Hematology, Immunology and Oncology, APHM, La Timone Children's Hospital, Marseille, France
| | | | | | | | - Timothée Bigot
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
| | - Noémie Saut
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | | | | | - Johannes van Agthoven
- Structural Biology Program, Division of Nephrology/Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Marie Loosveld
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
- Aix-Marseille Univ, CNRS, INSERM, CIML, Marseille, France
| | | | | | - Céline Falaise
- Department of Pediatric Hematology, Immunology and Oncology, APHM, La Timone Children's Hospital, Marseille, France
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Denis Bernot
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
| | - Pierre-Emmanuel Morange
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Marie-Christine Alessi
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Marjorie Poggi
- Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
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Noh JY, Seo H, Lee J, Jung H. Immunotherapy in Hematologic Malignancies: Emerging Therapies and Novel Approaches. Int J Mol Sci 2020; 21:E8000. [PMID: 33121189 PMCID: PMC7663624 DOI: 10.3390/ijms21218000] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
Immunotherapy is extensively investigated for almost all types of hematologic tumors, from preleukemic to relapse/refractory malignancies. Due to the emergence of technologies for target cell characterization, antibody design and manufacturing, as well as genome editing, immunotherapies including gene and cell therapies are becoming increasingly elaborate and diversified. Understanding the tumor immune microenvironment of the target disease is critical, as is reducing toxicity. Although there have been many successes and newly FDA-approved immunotherapies for hematologic malignancies, we have learned that insufficient efficacy due to disease relapse following treatment is one of the key obstacles for developing successful therapeutic regimens. Thus, combination therapies are also being explored. In this review, immunotherapies for each type of hematologic malignancy will be introduced, and novel targets that are under investigation will be described.
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Affiliation(s)
- Ji-Yoon Noh
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea;
| | - Huiyun Seo
- Center for Genome Engineering, Institute for Basic Science (IBS), 55 Expo-ro, Yuseong-gu, Daejeon 34126, Korea;
| | - Jungwoon Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea
| | - Haiyoung Jung
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea;
- Department of Functional Genomics, Korea University of Science and Technology (UST), 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
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