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Jolibois J, Domingues A, El Hamaoui D, Awaida R, Berger-de-Gaillardo M, Guérin D, Smadja DM, Marquet-DeRougé P, Margaill I, Rossi E, Nivet-Antoine V. Targeting TXNIP in endothelial progenitors mitigates IL-8-induced neutrophil recruitment under metabolic stress. Stem Cell Res Ther 2024; 15:225. [PMID: 39075518 PMCID: PMC11287885 DOI: 10.1186/s13287-024-03850-w] [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: 04/30/2024] [Accepted: 07/12/2024] [Indexed: 07/31/2024] Open
Abstract
BACKGROUND This study explores the potential role of Thioredoxin-interacting protein (TXNIP) silencing in endothelial colony-forming cells (ECFCs) within the scope of age-related comorbidities and impaired vascular repair. We aim to elucidate the effects of TXNIP silencing on vasculogenic properties, paracrine secretion, and neutrophil recruitment under conditions of metabolic stress. METHODS ECFCs, isolated from human blood cord, were transfected with TXNIP siRNA and exposed to a high glucose and β-hydroxybutyrate (BHB) medium to simulate metabolic stress. We evaluated the effects of TXNIP silencing on ECFCs' functional and secretory responses under these conditions. Assessments included analyses of gene and protein expression profiles, vasculogenic properties, cytokine secretion and neutrophil recruitment both in vitro and in vivo. The in vivo effects were examined using a murine model of hindlimb ischemia to observe the physiological relevance of TXNIP modulation under metabolic disorders. RESULTS TXNIP silencing did not mitigate the adverse effects on cell recruitment, vasculogenic properties, or senescence induced by metabolic stress in ECFCs. However, it significantly reduced IL-8 secretion and consequent neutrophil recruitment under these conditions. In a mouse model of hindlimb ischemia, endothelial deletion of TXNIP reduced MIP-2 secretion and prevented increased neutrophil recruitment induced by age-related comorbidities. CONCLUSIONS Our findings suggest that targeting TXNIP in ECFCs may alleviate ischemic complications exacerbated by metabolic stress, offering potential clinical benefits for patients suffering from age-related comorbidities.
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Affiliation(s)
- Julia Jolibois
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - Alison Domingues
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France.
| | - Divina El Hamaoui
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - Raphaël Awaida
- Laboratoire de Biochimie générale, AP-HP, Hôpital Necker Enfants Malades, Paris, F-75015, France
| | | | - Daniel Guérin
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - David M Smadja
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
- Laboratoire d'Hématologie, AP-HP, Hôpital Européen Georges Pompidou, Paris, F-75015, France
| | - Perrine Marquet-DeRougé
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - Isabelle Margaill
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - Elisa Rossi
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
| | - Valérie Nivet-Antoine
- Université Paris Cité, INSERM, Innovations thérapeutiques en hémostase, Paris, F-75006, France
- Laboratoire de Biochimie générale, AP-HP, Hôpital Necker Enfants Malades, Paris, F-75015, France
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Jeong JS, Kim JW, Kim JH, Kim CY, Chung EH, Cho YE, Hong EJ, Kwon HJ, Ko JW, Kim TW. The absence of thioredoxin-interacting protein in alveolar cells exacerbates asthma during obesity. Redox Biol 2024; 73:103193. [PMID: 38781728 PMCID: PMC11145548 DOI: 10.1016/j.redox.2024.103193] [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: 05/02/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024] Open
Abstract
Obesity is associated with an increased incidence of asthma. However, the mechanisms underlying this association are not fully understood. In this study, we investigated the role of thioredoxin-interacting protein (TXNIP) in obesity-induced asthma. Asthma was induced by intranasal injection of a protease from Aspergillus oryzae in normal diet (ND)- or high fat diet (HFD)-fed mice to investigate the symptoms. We measured TXNIP expression in the lungs of patients with asthma and in ND or HFD asthmatic mice. To explore the role of TXNIP in asthma pathogenesis, we induced asthma in the same manner in alveolar type 2 cell-specific TXNIP deficient (TXNIPCre) mice. In addition, the expression levels of pro-inflammatory cytokines were compared based on TXNIP gene expression in A549 cells stimulated with recombinant human tumor necrosis factor alpha. Compared to ND-fed mice, HFD-fed mice had elevated levels of free fatty acids and adipokines, resulting in high reactive oxygen species levels and more severe asthma symptoms. TXNIP expression was increased in both, asthmatic patients and HFD asthmatic mice. However, in experiments using TXNIPCre mice, despite being TXNIP deficient, TXNIPCre mice exhibited exacerbated asthma symptoms. Consistent with this, in vitro studies showed highest expression levels of pro-inflammatory cytokines in TXNIP-silenced cells. Overall, our findings suggest that increased TXNIP levels in obesity-induced asthma is compensatory to protect against inflammatory responses.
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Affiliation(s)
- Ji-Soo Jeong
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Jeong-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Jin-Hwa Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Chang-Yeop Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea; Inhalation Toxicology, Jeongeup Campus, KIT, Jeongeupsi, Jelabukdo, 580-185, Republic of Korea
| | - Eun-Hye Chung
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Young-Eun Cho
- Andong National University, Andong, 36729, Republic of Korea
| | - Eui-Ju Hong
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Hyo-Jung Kwon
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea
| | - Je-Won Ko
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea.
| | - Tae-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon, 34131, Republic of Korea.
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3
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Dong ZL, Jiao X, Wang ZG, Yuan K, Yang YQ, Wang Y, Li YT, Wang TC, Kan TY, Wang J, Tao HR. D-mannose alleviates intervertebral disc degeneration through glutamine metabolism. Mil Med Res 2024; 11:28. [PMID: 38711073 PMCID: PMC11071241 DOI: 10.1186/s40779-024-00529-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 04/11/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IVDD) is a multifaceted condition characterized by heterogeneity, wherein the balance between catabolism and anabolism in the extracellular matrix of nucleus pulposus (NP) cells plays a central role. Presently, the available treatments primarily focus on relieving symptoms associated with IVDD without offering an effective cure targeting its underlying pathophysiological processes. D-mannose (referred to as mannose) has demonstrated anti-catabolic properties in various diseases. Nevertheless, its therapeutic potential in IVDD has yet to be explored. METHODS The study began with optimizing the mannose concentration for restoring NP cells. Transcriptomic analyses were employed to identify the mediators influenced by mannose, with the thioredoxin-interacting protein (Txnip) gene showing the most significant differences. Subsequently, small interfering RNA (siRNA) technology was used to demonstrate that Txnip is the key gene through which mannose exerts its effects. Techniques such as colocalization analysis, molecular docking, and overexpression assays further confirmed the direct regulatory relationship between mannose and TXNIP. To elucidate the mechanism of action of mannose, metabolomics techniques were employed to pinpoint glutamine as a core metabolite affected by mannose. Next, various methods, including integrated omics data and the Gene Expression Omnibus (GEO) database, were used to validate the one-way pathway through which TXNIP regulates glutamine. Finally, the therapeutic effect of mannose on IVDD was validated, elucidating the mechanistic role of TXNIP in glutamine metabolism in both intradiscal and orally treated rats. RESULTS In both in vivo and in vitro experiments, it was discovered that mannose has potent efficacy in alleviating IVDD by inhibiting catabolism. From a mechanistic standpoint, it was shown that mannose exerts its anti-catabolic effects by directly targeting the transcription factor max-like protein X-interacting protein (MondoA), resulting in the upregulation of TXNIP. This upregulation, in turn, inhibits glutamine metabolism, ultimately accomplishing its anti-catabolic effects by suppressing the mitogen-activated protein kinase (MAPK) pathway. More importantly, in vivo experiments have further demonstrated that compared with intradiscal injections, oral administration of mannose at safe concentrations can achieve effective therapeutic outcomes. CONCLUSIONS In summary, through integrated multiomics analysis, including both in vivo and in vitro experiments, this study demonstrated that mannose primarily exerts its anti-catabolic effects on IVDD through the TXNIP-glutamine axis. These findings provide strong evidence supporting the potential of the use of mannose in clinical applications for alleviating IVDD. Compared to existing clinically invasive or pain-relieving therapies for IVDD, the oral administration of mannose has characteristics that are more advantageous for clinical IVDD treatment.
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Affiliation(s)
- Zheng-Lin Dong
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xin Jiao
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Zeng-Guang Wang
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Kai Yuan
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yi-Qi Yang
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yao Wang
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yun-Tao Li
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Tian-Chang Wang
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Tian-You Kan
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jian Wang
- School of Medicine, Shanghai University, Shanghai, 200444, China.
| | - Hai-Rong Tao
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
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4
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Shu X, Wang J, Zeng H, Shao L. Progression of Notch signaling regulation of B cells under radiation exposure. Front Immunol 2024; 15:1339977. [PMID: 38524139 PMCID: PMC10957566 DOI: 10.3389/fimmu.2024.1339977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/14/2024] [Indexed: 03/26/2024] Open
Abstract
With the continuous development of nuclear technology, the radiation exposure caused by radiation therapy is a serious health hazard. It is of great significance to further develop effective radiation countermeasures. B cells easily succumb to irradiation exposure along with immunosuppressive response. The approach to ameliorate radiation-induced B cell damage is rarely studied, implying that the underlying mechanisms of B cell damage after exposure are eager to be revealed. Recent studies suggest that Notch signaling plays an important role in B cell-mediated immune response. Notch signaling is a critical regulator for B cells to maintain immune function. Although accumulating studies reported that Notch signaling contributes to the functionality of hematopoietic stem cells and T cells, its role in B cells is scarcely appreciated. Presently, we discussed the regulation of Notch signaling on B cells under radiation exposure to provide a scientific basis to prevent radiation-induced B cell damage.
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Affiliation(s)
- Xin Shu
- Department of Occupational Health and Toxicology, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, School of Public Health, Nanchang University, Nanchang, China
| | - Jie Wang
- Department of Histology and Embryology, School of Basic Medicine Sciences, Nanchang University, Nanchang, China
| | - Huihong Zeng
- Department of Histology and Embryology, School of Basic Medicine Sciences, Nanchang University, Nanchang, China
| | - Lijian Shao
- Department of Occupational Health and Toxicology, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, School of Public Health, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Interdisciplinary Science, Nanchang University, Nanchang, China
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5
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Al Mamun A, Shao C, Geng P, Wang S, Xiao J. The Mechanism of Pyroptosis and Its Application Prospect in Diabetic Wound Healing. J Inflamm Res 2024; 17:1481-1501. [PMID: 38463193 PMCID: PMC10924950 DOI: 10.2147/jir.s448693] [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: 11/17/2023] [Accepted: 02/13/2024] [Indexed: 03/12/2024] Open
Abstract
Pyroptosis defines a form of pro-inflammatory-dependent programmed cell death triggered by gasdermin proteins, which creates cytoplasmic pores and promotes the activation and accumulation of immune cells by releasing several pro-inflammatory mediators and immunogenic substances upon cell rupture. Pyroptosis comprises canonical (mediated by Caspase-1) and non-canonical (mediated by Caspase-4/5/11) molecular signaling pathways. Numerous studies have explored the contributory roles of inflammasome and pyroptosis in the progression of multiple pathological conditions such as tumors, nerve injury, inflammatory diseases and metabolic disorders. Accumulating evidence indicates that the activation of the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome results in the activation of pyroptosis and inflammation. Current evidence suggests that pyroptosis-dependent cell death plays a progressive role in the development of diabetic complications including diabetic wound healing (DWH) and diabetic foot ulcers (DFUs). This review presents a brief overview of the molecular mechanisms underlying pyroptosis and addresses the current research on pyroptosis-dependent signaling pathways in the context of DWH. In this review, we also present some prospective therapeutic compounds/agents that can target pyroptotic signaling pathways, which may serve as new strategies for the effective treatment and management of diabetic wounds.
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Affiliation(s)
- Abdullah Al Mamun
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Chuxiao Shao
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Peiwu Geng
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Shuanghu Wang
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
- Department of Wound Healing, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
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6
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Yang T, Liu S, Ma H, Lai H, Wang C, Ni K, Lu Y, Li W, Hu X, Zhou Z, Lou C, He D. Carnitine functions as an enhancer of NRF2 to inhibit osteoclastogenesis via regulating macrophage polarization in osteoporosis. Free Radic Biol Med 2024; 213:174-189. [PMID: 38246515 DOI: 10.1016/j.freeradbiomed.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Osteoporosis, which manifests as reduced bone mass and deteriorated bone quality, is common in the elderly population. It is characterized by persistent elevation of macrophage-associated inflammation and active osteoclast bone resorption. Currently, the roles of intracellular metabolism in regulating these processes remain unclear. In this study, we initially performed bioinformatics analysis and observed a significant increase in the proportion of M1 macrophages in bone marrow with aging. Further metabolomics analysis demonstrated a notable reduction in the expression of carnitine metabolites in aged macrophages, while carnitine was not detected in osteoclasts. During the differentiation process, osteoclasts took up carnitine synthesized by macrophages to regulate their own activity. Mechanistically, carnitine enhanced the function of Nrf2 by inhibiting the Keap1-Nrf2 interaction, reducing the proteasome-dependent ubiquitination and degradation of Nrf2. In silico molecular ligand docking analysis of the interaction between carnitine and Keap1 showed that carnitine binds to Keap1 to stabilize Nrf2 and enhance its function. In this study, we found that the decrease in carnitine levels in aging macrophages causes overactivation of osteoclasts, ultimately leading to osteoporosis. A decrease in serum carnitine levels in patients with osteoporosis was found to have good diagnostic and predictive value. Moreover, supplementation with carnitine was shown to be effective in the treatment of osteoporosis.
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Affiliation(s)
- Tao Yang
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Shijie Liu
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Haiwei Ma
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Hehuan Lai
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Chengdi Wang
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Kainan Ni
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Yahong Lu
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Weiqing Li
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Xingyu Hu
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Zhiguo Zhou
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China
| | - Chao Lou
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China.
| | - Dengwei He
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, 289 Kuocang Road, Lishui, Zhejiang, 323000, PR China.
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7
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McClatchy J, Strogantsev R, Wolfe E, Lin HY, Mohammadhosseini M, Davis BA, Eden C, Goldman D, Fleming WH, Conley P, Wu G, Cimmino L, Mohammed H, Agarwal A. Clonal hematopoiesis related TET2 loss-of-function impedes IL1β-mediated epigenetic reprogramming in hematopoietic stem and progenitor cells. Nat Commun 2023; 14:8102. [PMID: 38062031 PMCID: PMC10703894 DOI: 10.1038/s41467-023-43697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Clonal hematopoiesis (CH) is defined as a single hematopoietic stem/progenitor cell (HSPC) gaining selective advantage over a broader range of HSPCs. When linked to somatic mutations in myeloid malignancy-associated genes, such as TET2-mediated clonal hematopoiesis of indeterminate potential or CHIP, it represents increased risk for hematological malignancies and cardiovascular disease. IL1β is elevated in patients with CHIP, however, its effect is not well understood. Here we show that IL1β promotes expansion of pro-inflammatory monocytes/macrophages, coinciding with a failure in the demethylation of lymphoid and erythroid lineage associated enhancers and transcription factor binding sites, in a mouse model of CHIP with hematopoietic-cell-specific deletion of Tet2. DNA-methylation is significantly lost in wild type HSPCs upon IL1β administration, which is resisted by Tet2-deficient HSPCs, and thus IL1β enhances the self-renewing ability of Tet2-deficient HSPCs by upregulating genes associated with self-renewal and by resisting demethylation of transcription factor binding sites related to terminal differentiation. Using aged mouse models and human progenitors, we demonstrate that targeting IL1 signaling could represent an early intervention strategy in preleukemic disorders. In summary, our results show that Tet2 is an important mediator of an IL1β-promoted epigenetic program to maintain the fine balance between self-renewal and lineage differentiation during hematopoiesis.
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Affiliation(s)
- J McClatchy
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - R Strogantsev
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - E Wolfe
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - H Y Lin
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - M Mohammadhosseini
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - B A Davis
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - C Eden
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - D Goldman
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - W H Fleming
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - P Conley
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - G Wu
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - L Cimmino
- University of Miami, Department of Biochemistry and Molecular Biology, Sylvester Comprehensive Cancer Center, Miami, USA
| | - H Mohammed
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - A Agarwal
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA.
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA.
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA.
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8
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Udenze D, Trus I, Lipsit S, Napper S, Karniychuk U. Offspring affected with in utero Zika virus infection retain molecular footprints in the bone marrow and blood cells. Emerg Microbes Infect 2023; 12:2147021. [PMID: 36369716 PMCID: PMC9869997 DOI: 10.1080/22221751.2022.2147021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/09/2022] [Indexed: 11/15/2022]
Abstract
Congenital virus infections, for example cytomegalovirus and rubella virus infections, commonly affect the central nervous and hematological systems in fetuses and offspring. However, interactions between emerging congenital Zika virus and hematological system-bone marrow and blood-in fetuses and offspring are mainly unknown. Our overall goal was to determine whether silent in utero Zika virus infection can cause functional and molecular footprints in the bone marrow and blood of fetuses and offspring. We specifically focused on silent fetal infection because delayed health complications in initially asymptomatic offspring were previously demonstrated in animal and human studies. Using a well-established porcine model for Zika virus infection and a set of cellular and molecular experimental tools, we showed that silent in utero infection causes multi-organ inflammation in fetuses and local inflammation in the fetal bone marrow. In utero infection also caused footprints in the offspring bone marrow and PBMCs. These findings should be considered in a broader clinical context because of growing concerns about health sequelae in cohorts of children affected with congenital Zika virus infection in the Americas. Understanding virus-induced molecular mechanisms of immune activation and inflammation in fetuses may provide targets for early in utero interventions. Also, identifying early biomarkers of in utero-acquired immunopathology in offspring may help to alleviate long-term sequelae.
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Affiliation(s)
- Daniel Udenze
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Canada
- School of Public Health, University of Saskatchewan, Saskatoon, Canada
| | - Ivan Trus
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Canada
- Dioscuri Centre for RNA-Protein Interactions in Human Health and Disease, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Sean Lipsit
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Canada
| | - Scott Napper
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Canada
- Department of Biochemistry, Microbiology, and Immunology, University of Saskatchewan, Saskatoon, Canada
| | - Uladzimir Karniychuk
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Canada
- School of Public Health, University of Saskatchewan, Saskatoon, Canada
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
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9
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Deng J, Pan T, Liu Z, McCarthy C, Vicencio JM, Cao L, Alfano G, Suwaidan AA, Yin M, Beatson R, Ng T. The role of TXNIP in cancer: a fine balance between redox, metabolic, and immunological tumor control. Br J Cancer 2023; 129:1877-1892. [PMID: 37794178 PMCID: PMC10703902 DOI: 10.1038/s41416-023-02442-4] [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: 05/01/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 10/06/2023] Open
Abstract
Thioredoxin-interacting protein (TXNIP) is commonly considered a master regulator of cellular oxidation, regulating the expression and function of Thioredoxin (Trx). Recent work has identified that TXNIP has a far wider range of additional roles: from regulating glucose and lipid metabolism, to cell cycle arrest and inflammation. Its expression is increased by stressors commonly found in neoplastic cells and the wider tumor microenvironment (TME), and, as such, TXNIP has been extensively studied in cancers. In this review, we evaluate the current literature regarding the regulation and the function of TXNIP, highlighting its emerging role in modulating signaling between different cell types within the TME. We then assess current and future translational opportunities and the associated challenges in this area. An improved understanding of the functions and mechanisms of TXNIP in cancers may enhance its suitability as a therapeutic target.
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Affiliation(s)
- Jinhai Deng
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
- Clinical Research Center (CRC), Clinical Pathology Center (CPC), Chongqing University Three Gorges Hospital, Chongqing University, Wanzhou, Chongqing, China
| | - Teng Pan
- Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, 518172, China
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Caitlin McCarthy
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
| | - Jose M Vicencio
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
| | - Lulu Cao
- Department of Rheumatology and Immunology, Peking University People's Hospital and Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Giovanna Alfano
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
| | - Ali Abdulnabi Suwaidan
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
| | - Mingzhu Yin
- Clinical Research Center (CRC), Clinical Pathology Center (CPC), Chongqing University Three Gorges Hospital, Chongqing University, Wanzhou, Chongqing, China
| | - Richard Beatson
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK.
- Centre for Inflammation and Tissue Repair, UCL Respiratory, Division of Medicine, University College London (UCL), Rayne 9 Building, London, WC1E 6JF, UK.
| | - Tony Ng
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK.
- UCL Cancer Institute, University College London, London, UK.
- Cancer Research UK City of London Centre, London, UK.
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10
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Hurwitz SN, Jung SK, Kobulsky DR, Fazelinia H, Spruce LA, Pérez EB, Groen N, Mesaros C, Kurre P. Neutral sphingomyelinase blockade enhances hematopoietic stem cell fitness through an integrated stress response. Blood 2023; 142:1708-1723. [PMID: 37699202 PMCID: PMC10667352 DOI: 10.1182/blood.2023022147] [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] [Received: 08/09/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023] Open
Abstract
Hematopoietic stem and progenitor cell (HSPC) transplantation serves as a curative therapy for many benign and malignant hematopoietic disorders and as a platform for gene therapy. However, growing needs for ex vivo manipulation of HSPC-graft products are limited by barriers in maintaining critical self-renewal and quiescence properties. The role of sphingolipid metabolism in safeguarding these essential cellular properties has been recently recognized, but not yet widely explored. Here, we demonstrate that pharmacologic and genetic inhibition of neutral sphingomyelinase 2 (nSMase-2) leads to sustained improvements in long-term competitive transplantation efficiency after ex vivo culture. Mechanistically, nSMase-2 blockade activates a canonical integrated stress response (ISR) and promotes metabolic quiescence in human and murine HSPCs. These adaptations result in part from disruption in sphingolipid metabolism that impairs the release of nSMase-2-dependent extracellular vesicles (EVs). The aggregate findings link EV trafficking and the ISR as a regulatory dyad guarding HSPC homeostasis and long-term fitness. Translationally, transient nSMase-2 inhibition enables ex vivo graft manipulation with enhanced HSPC potency.
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Affiliation(s)
- Stephanie N. Hurwitz
- Comprehensive Bone Marrow Failure Center, Children's Hospital of Philadelphia, Philadelphia, PA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA
| | - Seul K. Jung
- Comprehensive Bone Marrow Failure Center, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Danielle R. Kobulsky
- Comprehensive Bone Marrow Failure Center, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Hossein Fazelinia
- Proteomics Core Facility, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Lynn A. Spruce
- Proteomics Core Facility, Children's Hospital of Philadelphia, Philadelphia, PA
| | | | | | - Clementina Mesaros
- Center of Excellence in Environmental Toxicology, Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA
| | - Peter Kurre
- Comprehensive Bone Marrow Failure Center, Children's Hospital of Philadelphia, Philadelphia, PA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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11
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Peng H, Kaplan N, Liu M, Jiang H, Lavker RM. Keeping an Eye Out for Autophagy in the Cornea: Sample Preparation for Single-Cell RNA-Sequencing. Methods Mol Biol 2023:10.1007/7651_2023_502. [PMID: 37930627 PMCID: PMC11162605 DOI: 10.1007/7651_2023_502] [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] [Indexed: 11/07/2023]
Abstract
Single-cell RNA-sequencing (scRNA-seq) is a powerful technique that can barcode individual cells and thus used to obtain a gene expression profile for every individual cell within a tissue. This makes scRNA-seq an excellent method for characterizing rare cell populations such as stem cells. We describe how scRNA-seq can be utilized to examine limbal epithelial stem cell population as well as investigate the contribution of autophagy to the function of limbal epithelial stem cells. To accomplish this, we used the Beclin1 heterozygous (Beclin1 het) mouse, a well-established model of autophagy deficiency. We provide a protocol that we developed for the isolation of viable, single-cell suspensions of limbal/corneal tissues, as well as the analysis of scRNA-seq data.
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Affiliation(s)
- Han Peng
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Nihal Kaplan
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Min Liu
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Huimin Jiang
- Department of Dermatology, Northwestern University, Chicago, IL, USA
- Department of Ophthalmology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Robert M Lavker
- Department of Dermatology, Northwestern University, Chicago, IL, USA.
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12
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Rius-Pérez S. p53 at the crossroad between mitochondrial reactive oxygen species and necroptosis. Free Radic Biol Med 2023; 207:183-193. [PMID: 37481144 DOI: 10.1016/j.freeradbiomed.2023.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/10/2023] [Accepted: 07/19/2023] [Indexed: 07/24/2023]
Abstract
p53 is a redox-sensitive transcription factor that can regulate multiple cell death programs through different signaling pathways. In this review, we assess the role of p53 in the regulation of necroptosis, a programmed form of lytic cell death highly involved in the pathophysiology of multiple diseases. In particular, we focus on the role of mitochondrial reactive oxygen species (mtROS) as essential contributors to modulate necroptosis execution through p53. The enhanced generation of mtROS during necroptosis is critical for the correct interaction between receptor-interacting serine/threonine-protein kinase 1 (RIPK1) and 3 (RIPK3), two key components of the functional necrosome. p53 controls the occurrence of necroptosis by modulating the levels of mitochondrial H2O2 via peroxiredoxin 3 and sulfiredoxin. Furthermore, in response to increased levels of H2O2, p53 upregulates the long non-coding RNA necrosis-related factor, favoring the translation of RIPK1 and RIPK3. In parallel, a fraction of cytosolic p53 migrates into mitochondria, a process notably involved in necroptosis execution via its interaction with the mitochondrial permeability transition pore. In conclusion, p53 is located at the intersection between mtROS and the necroptosis machinery, making it a key protein to orchestrate redox signaling during necroptosis.
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Affiliation(s)
- Sergio Rius-Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100, Valencia, Spain; Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028, Barcelona, Spain.
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13
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Sa R, Ma J, Yang J, Li DF, Du J, Jia JC, Li ZY, Huang N, A L, Sha R, Nai G, Hexig B, Meng JQ, Yu L. High TXNIP expression accelerates the migration and invasion of the GDM placenta trophoblast. BMC Pregnancy Childbirth 2023; 23:235. [PMID: 37038114 PMCID: PMC10084645 DOI: 10.1186/s12884-023-05524-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 03/15/2023] [Indexed: 04/12/2023] Open
Abstract
INTRODUCTION Our previous study has proofed the glucose sensitive gene-thioredoxin-interacting protein (TXNIP) expression was up in the placenta of the patients with gestational diabetes mellitus (GDM), but the pathological mechanisms underlying abnormal TXNIP expression in the placenta of patients with GDM is completely unclear and additional investigations are required to explain the findings we have observed. In the present study, we simulated the high TXNIP expression via introducing the Tet-On "switch" in vitro, approximate to its expression level in the real world, to explore the following consequence of the abnormal TXNIP. METHODS The expression and localization of TXNIP in the placenta of GDM patients and the health control was investigated via immunofluorescent staining, western blot and RT-qPCR. Overexpression of TXNIP was achieved through transfecting Tet-on system to the human trophoblastic cell line-HTR-8/Svneo cell. TXNIP knockout was obtained via CRISPR-Cas9 method. The cell phenotype was observed via IncuCyte Imaging System and flow cytometry. The mechanism was explored via western blot and RT-qPCR. RESULTS The expression level of TXNIP in the GDM placenta was nearly 2-3 times higher than that in the control. The TXNIP located at trophoblastic cells of the placenta. When the expression of TXNIP was upregulated, the migration and invasion of the cells accelerated, but cell apoptosis and proliferation did not changed compared with the control group. Furthermore, the size of the TetTXNIP cells became larger, and the expression level of Vimentin and p-STAT3 increased in the TetTXNIP cells. All the changes mentioned above were opposite in the TXNIP-KO cells. CONCLUSIONS Abnormal expression of TXNIP might be related to the impairment of the GDM placental function, affecting the migration and invasion of the placental trophoblast cells through STAT3 and Vimentin related pathway; thus, TXNIP might be the potential therapeutic target for repairing the placental dysfunction deficient in GDM patients.
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Affiliation(s)
- Rina Sa
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Jing Ma
- Department of Clinical Lab, Mongolia Maternity And Child Health Care Hospital, Hohhot, 010000, China
| | - Jie Yang
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Dong Fang Li
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Jie Du
- Department of Gynecology and Obstetrics, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Jian Chao Jia
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Zhi Ying Li
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Na Huang
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Lamusi A
- Department of Ophthalmology, Inner Mongolia International Mongolian Hospital, Hohhot, 010000, China
| | - Rula Sha
- Department of Gynecology and Obstetrics, Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Gal Nai
- Department of Genetics 、 Development and Cell Biology, School of Life Sciences, Inner Mongolia University, Hohhot, 010000, China
| | - Bayar Hexig
- Department of Genetics 、 Development and Cell Biology, School of Life Sciences, Inner Mongolia University, Hohhot, 010000, China
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010000, China
| | - Ji Qing Meng
- Department of Pharmacology, Inner Mongolia People's Hospital, Hohhot, 010000, China
| | - Lan Yu
- Department of Clinical Medical Research Center, Inner Mongolia People's Hospital, Hohhot, 010010, China.
- Department of Endocrine and Metabolic Diseases, Inner Mongolia People's Hospital, Hohhot, 010010, China.
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14
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Sun Q, Lee W, Hu H, Ogawa T, De Leon S, Katehis I, Lim CH, Takeo M, Cammer M, Taketo MM, Gay DL, Millar SE, Ito M. Dedifferentiation maintains melanocyte stem cells in a dynamic niche. Nature 2023; 616:774-782. [PMID: 37076619 PMCID: PMC10132989 DOI: 10.1038/s41586-023-05960-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 03/16/2023] [Indexed: 04/21/2023]
Abstract
For unknow reasons, the melanocyte stem cell (McSC) system fails earlier than other adult stem cell populations1, which leads to hair greying in most humans and mice2,3. Current dogma states that McSCs are reserved in an undifferentiated state in the hair follicle niche, physically segregated from differentiated progeny that migrate away following cues of regenerative stimuli4-8. Here we show that most McSCs toggle between transit-amplifying and stem cell states for both self-renewal and generation of mature progeny, a mechanism fundamentally distinct from those of other self-renewing systems. Live imaging and single-cell RNA sequencing revealed that McSCs are mobile, translocating between hair follicle stem cell and transit-amplifying compartments where they reversibly enter distinct differentiation states governed by local microenvironmental cues (for example, WNT). Long-term lineage tracing demonstrated that the McSC system is maintained by reverted McSCs rather than by reserved stem cells inherently exempt from reversible changes. During ageing, there is accumulation of stranded McSCs that do not contribute to the regeneration of melanocyte progeny. These results identify a new model whereby dedifferentiation is integral to homeostatic stem cell maintenance and suggest that modulating McSC mobility may represent a new approach for the prevention of hair greying.
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Affiliation(s)
- Qi Sun
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Wendy Lee
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Hai Hu
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Tatsuya Ogawa
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Sophie De Leon
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Ioanna Katehis
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Chae Ho Lim
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Makoto Takeo
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Michael Cammer
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
| | - M Mark Taketo
- Colon Cancer Program, Kyoto University Hospital-iACT, Kyoto University, Kyoto, Japan
| | - Denise L Gay
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
- DLGBioLogics, Paris, France
| | - Sarah E Millar
- Black Family Stem Cell Institute, Department of Cell, Developmental and Regenerative Biology and Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mayumi Ito
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA.
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15
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Li Y, Deng W, Wu J, He Q, Yang G, Luo X, Jia Y, Duan Y, Zhou L, Liu D. TXNIP Exacerbates the Senescence and Aging-Related Dysfunction of β Cells by Inducing Cell Cycle Arrest Through p38-p16/p21-CDK-Rb Pathway. Antioxid Redox Signal 2023; 38:480-495. [PMID: 36070438 DOI: 10.1089/ars.2021.0224] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aims: Thioredoxin-interacting protein (TXNIP) is a crucial molecular promoter of oxidative stress and has been identified to be associated with cellular senescence. It is an important mediator of β cell insulin secretion and has effects on β cell mass. However, its role in β cell senescence is unclear. The present study was designed to investigate the effects and mechanisms of TXNIP on the senescence and aging- and diet-related dysfunction of β cells. Methods: Human pancreatic paraffin tissues and serum samples from different ages were collected to detect TXNIP expression. TXNIP-/- and C57BL/6J mice were fed either a normal chow diet (NCD) or a high-fat diet (HFD) until 5, 11, 14, or 20 months. The recapitulation experiment was conducted with TXNIP protein injection. MIN6 cells were transfected with LV-TXNIP and LV-siTXNIP. The biochemical indexes, ageing-related markers, cell cycle proteins, and pathways were examined both in vivo and in vitro. Results: TXNIP expression showed an age-related increase in β cells and serum samples from humans. TXNIP significantly impaired glucose metabolism and insulin secretion in an age-dependent manner. TXNIP aggravated age-related and obesity-induced structural failure, oxidative stress, decreased proliferation, increased apoptosis in β cells, and induced the cell cycle arrest. TXNIP interacted with p38 mitogen-activated protein kinase (p38MAPK) and modulated the p16/p21-CDK-Rb axis to accelerate β cell senescence. Innovation and Conclusions: The present study demonstrated that TXNIP may exacerbate pancreatic β cell senescence and age-related dysfunction by inducing cell cycle arrest through the p38-p16/p21-CDK-Rb pathway, in natural and pathological states. Antioxid. Redox Signal. 38, 480-495.
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Affiliation(s)
- Yang Li
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Wenzhen Deng
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Department of Endocrinology, Qianjiang Central Hospital of Chongqing, Chongqing, China
| | - Jinlin Wu
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Department of Endocrinology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Qirui He
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xie Luo
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yanjun Jia
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yaqian Duan
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Liping Zhou
- Department of Endocrinology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Dongfang Liu
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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16
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Dagdeviren S, Lee RT, Wu N. Physiological and Pathophysiological Roles of Thioredoxin Interacting Protein: A Perspective on Redox Inflammation and Metabolism. Antioxid Redox Signal 2023; 38:442-460. [PMID: 35754346 PMCID: PMC9968628 DOI: 10.1089/ars.2022.0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/12/2022] [Indexed: 11/12/2022]
Abstract
Significance: Thioredoxin interacting protein (TXNIP) is a member of the arrestin fold superfamily with important cellular functions, including cellular transport, mitochondrial energy generation, and protein cycling. It is the only arrestin-domain protein known to covalently bind to thioredoxin and plays roles in glucose metabolism, inflammation, apoptosis, and cancer. Recent Advances: The crystal structure of the TXNIP-thioredoxin complex provided details about this fascinating interaction. Recent studies showed that TXNIP is induced by endoplasmic reticulum (ER) stress, activates NLR family pyrin domain containing 3 (NLRP3) inflammasomes, and can regulate glucose transport into cells. The tumor suppressor role of TXNIP in various cancer types and the role of TXNIP in fructose absorption are now described. Critical Issues: The influence of TXNIP on redox state is more complex than its interaction with thioredoxin. Future Directions: It is incompletely understood which functions of TXNIP are thioredoxin-dependent. It is also unclear whether TXNIP binding can inhibit glucose transporters without endocytosis. TXNIP-regulated control of ER stress should also be investigated further. Antioxid. Redox Signal. 38, 442-460.
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Affiliation(s)
- Sezin Dagdeviren
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
| | - Richard T. Lee
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
| | - Ning Wu
- Van Andel Institute, Grand Rapids, Michigan, USA
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17
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Park E, Lee C, Park J, Liu J, Hong J, Shin DY, Byun JM, Yun H, Koh Y, Yoon SS. Mitigating the BFL1-mediated antiapoptotic pathway in diffuse large B cell lymphoma by inhibiting HDACs. Leuk Lymphoma 2023; 64:205-216. [PMID: 36331521 DOI: 10.1080/10428194.2022.2140282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Endogenous BFL1 expression renders diffuse large B-cell lymphoma (DLBCL) cells insensitive to B-cell lymphoma 2 (BCL2) and/or MCL1 inhibitors. Considering the difficulties in developing a direct BFL1 inhibitor, we intended to inhibit histone deacetylase (HDAC) to mitigate the biological role of BFL1 by modulating WT1 and NOXA. Cells expressing high BFL1 exhibited enhanced sensitivity to pan-HDAC inhibitor compared to low BFL1 expressing cells, mainly attributable to the difference in the amount of apoptosis. HDAC inhibitors decreased BFL1 and WT1 expressions while increasing NOXA levels. The BFL1 knockdown experiment demonstrated that HDAC inhibitor's sensitivity depends on the BFL1 expression in DLBCL cells. Furthermore, we found that the specific HDAC class was expected to play a critical role in BFL1 inhibition by comparing the effects of several HDAC inhibitors. Thus, our study provides a rationale for using HDAC inhibitors to induce apoptosis in DLBCL patients using BFL1 as a predictive biomarker.
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Affiliation(s)
- Eunchae Park
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea
| | - Chansub Lee
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jihyun Park
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jun Liu
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea
| | - Junshik Hong
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Dong-Yeop Shin
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ja Min Byun
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hongseok Yun
- Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea.,Center for Precision Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Youngil Koh
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sung-Soo Yoon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Center for Medical Innovation, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, Division of Hematology and Medical Oncology, Seoul National University Hospital, Seoul, Republic of Korea
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18
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Muri J, Kopf M. The thioredoxin system: Balancing redox responses in immune cells and tumors. Eur J Immunol 2023; 53:e2249948. [PMID: 36285367 PMCID: PMC10100330 DOI: 10.1002/eji.202249948] [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: 08/29/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 02/02/2023]
Abstract
The thioredoxin (TRX) system is an important contributor to cellular redox balance and regulates cell growth, apoptosis, gene expression, and antioxidant defense in nearly all living cells. Oxidative stress, the imbalance between reactive oxygen species (ROS) and antioxidants, can lead to cell death and tissue damage, thereby contributing to aging and to the development of several diseases, including cardiovascular and allergic diseases, diabetes, and neurological disorders. Targeting its activity is also considered as a promising strategy in the treatment of cancer. Over the past years, immunologists have established an essential function of TRX for activation, proliferation, and responses in T cells, B cells, and macrophages. Upon activation, immune cells rearrange their redox system and activate the TRX pathway to promote proliferation through sustainment of nucleotide biosynthesis, and to support inflammatory responses in myeloid cells by allowing NF-κB and NLRP3 inflammasome responses. Consequently, targeting the TRX system may therapeutically be exploited to inhibit immune responses in inflammatory conditions. In this review, we summarize recent insights revealing key roles of the TRX pathway in immune cells in health and disease, and lessons learnt for cancer therapy.
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Affiliation(s)
- Jonathan Muri
- Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
| | - Manfred Kopf
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
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19
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Liu Y, Gu W. The complexity of p53-mediated metabolic regulation in tumor suppression. Semin Cancer Biol 2022; 85:4-32. [PMID: 33785447 PMCID: PMC8473587 DOI: 10.1016/j.semcancer.2021.03.010] [Citation(s) in RCA: 99] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 02/07/2023]
Abstract
Although the classic activities of p53 including induction of cell-cycle arrest, senescence, and apoptosis are well accepted as critical barriers to cancer development, accumulating evidence suggests that loss of these classic activities is not sufficient to abrogate the tumor suppression activity of p53. Numerous studies suggest that metabolic regulation contributes to tumor suppression, but the mechanisms by which it does so are not completely understood. Cancer cells rewire cellular metabolism to meet the energetic and substrate demands of tumor development. It is well established that p53 suppresses glycolysis and promotes mitochondrial oxidative phosphorylation through a number of downstream targets against the Warburg effect. The role of p53-mediated metabolic regulation in tumor suppression is complexed by its function to promote both cell survival and cell death under different physiological settings. Indeed, p53 can regulate both pro-oxidant and antioxidant target genes for complete opposite effects. In this review, we will summarize the roles of p53 in the regulation of glucose, lipid, amino acid, nucleotide, iron metabolism, and ROS production. We will highlight the mechanisms underlying p53-mediated ferroptosis, AKT/mTOR signaling as well as autophagy and discuss the complexity of p53-metabolic regulation in tumor development.
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Affiliation(s)
- Yanqing Liu
- Institute for Cancer Genetics, Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians & Surgeons, Columbia University, 1130 Nicholas Ave, New York, NY, 10032, USA
| | - Wei Gu
- Institute for Cancer Genetics, Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians & Surgeons, Columbia University, 1130 Nicholas Ave, New York, NY, 10032, USA; Department of Pathology and Cell Biology, Vagelos College of Physicians & Surgeons, Columbia University, 1130 Nicholas Ave, New York, NY, 10032, USA.
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20
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Persyn E, Wahlen S, Kiekens L, Taveirne S, Van Loocke W, Van Ammel E, Van Nieuwerburgh F, Taghon T, Vandekerckhove B, Van Vlierberghe P, Leclercq G. TXNIP Promotes Human NK Cell Development but Is Dispensable for NK Cell Functionality. Int J Mol Sci 2022; 23:ijms231911345. [PMID: 36232644 PMCID: PMC9570291 DOI: 10.3390/ijms231911345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/13/2022] [Accepted: 09/22/2022] [Indexed: 12/05/2022] Open
Abstract
The ability of natural killer (NK) cells to kill tumor cells without prior sensitization makes them a rising player in immunotherapy. Increased understanding of the development and functioning of NK cells will improve their clinical utilization. As opposed to murine NK cell development, human NK cell development is still less understood. Here, we studied the role of thioredoxin-interacting protein (TXNIP) in human NK cell differentiation by stable TXNIP knockdown or overexpression in cord blood hematopoietic stem cells, followed by in vitro NK cell differentiation. TXNIP overexpression only had marginal effects, indicating that endogenous TXNIP levels are sufficient in this process. TXNIP knockdown, however, reduced proliferation of early differentiation stages and greatly decreased NK cell numbers. Transcriptome analysis and experimental confirmation showed that reduced protein synthesis upon TXNIP knockdown likely caused this low proliferation. Contrary to its profound effects on the early differentiation stages, TXNIP knockdown led to limited alterations in NK cell phenotype, and it had no effect on NK cell cytotoxicity or cytokine production. Thus, TXNIP promotes human NK cell differentiation by affecting protein synthesis and proliferation of early NK cell differentiation stages, but it is redundant for functional NK cell maturation.
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Affiliation(s)
- Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Wouter Van Loocke
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | | | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Correspondence: ; Tel.: +32-9-332-37-34
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21
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Relevance of NLRP3 Inflammasome-Related Pathways in the Pathology of Diabetic Wound Healing and Possible Therapeutic Targets. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9687925. [PMID: 35814271 PMCID: PMC9262551 DOI: 10.1155/2022/9687925] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 11/30/2022]
Abstract
Wound healing is a major secondary complication in type 2 diabetes, which results in significant disability and mortality, imposing a significant clinical and social burden. Sustained activation of the Nod-like receptor protein (NLRP) inflammasome in wounds is responsible for excessive inflammatory responses and aggravates wound damage. The activation of the NLRP3 inflammasome is regulated by a two-step process: the priming/licensing (signal 1) step involved in transcription and posttranslation and the protein complex assembly (signal 2) step triggered by danger molecules. This review focuses on the advances made in understanding the pathophysiological mechanisms underlying wound healing in the diabetic microenvironment. Simultaneously, this review summarizes the molecular mechanisms of the main regulatory pathways associated with signal 1 and signal 2, which trigger the NLRP3 inflammasome complex assembly in the development of diabetic wounds (DW). Activation of the NLRP3 inflammasome-related pathway, involving the disturbance in Nrf2 and the NF-κB/NLRP3 inflammasome, TLR receptor-mediated activation of the NF-κB/NLRP3 inflammasome, and various stimuli inducing NLRP3 inflammasome assembly play a pivotal role in DW healing. Furthermore, therapeutics targeting the NLRP3 inflammasome-related pathways may promote angiogenesis, reprogram immune cells, and improve DW healing.
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22
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Emerging Evidence of the Significance of Thioredoxin-1 in Hematopoietic Stem Cell Aging. Antioxidants (Basel) 2022; 11:antiox11071291. [PMID: 35883782 PMCID: PMC9312246 DOI: 10.3390/antiox11071291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/22/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023] Open
Abstract
The United States is undergoing a demographic shift towards an older population with profound economic, social, and healthcare implications. The number of Americans aged 65 and older will reach 80 million by 2040. The shift will be even more dramatic in the extremes of age, with a projected 400% increase in the population over 85 years old in the next two decades. Understanding the molecular and cellular mechanisms of ageing is crucial to reduce ageing-associated disease and to improve the quality of life for the elderly. In this review, we summarized the changes associated with the ageing of hematopoietic stem cells (HSCs) and what is known about some of the key underlying cellular and molecular pathways. We focus here on the effects of reactive oxygen species and the thioredoxin redox homeostasis system on ageing biology in HSCs and the HSC microenvironment. We present additional data from our lab demonstrating the key role of thioredoxin-1 in regulating HSC ageing.
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23
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Wen J, Zhao C, Chen J, Song S, Lin Z, Xie S, Qi H, Wang J, Su X. Activation of α7 nicotinic acetylcholine receptor promotes HIV-1 transcription. CELL INSIGHT 2022; 1:100028. [PMID: 37193048 PMCID: PMC10120325 DOI: 10.1016/j.cellin.2022.100028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 05/18/2023]
Abstract
Alpha7 nicotinic acetylcholine receptor (α7 nAChR), a hub of the cholinergic anti-inflammatory pathway (CAP), is required for the treatment of inflammatory diseases. HIV-1 infection can upregulate the expression of α7 nAChR in T lymphocytes and affect the role of CAP. However, whether α7 nAChR regulates HIV-1 infection in CD4+ T cells is unclear. In this study, we first found that activation of α7 nAChR by GTS-21 (an α7 nAChR agonist) can promote the transcription of HIV-1 proviral DNA. Then, through transcriptome sequencing analysis, we found that p38 MAPK signaling was enriched in GTS-21 treated HIV-latent T cells. Mechanistically, activation of α7 nAChR could increase reactive oxygen species (ROS), reduce DUSP1 and DUSP6, and consequently enhance the phosphorylation of p38 MAPK. By co-immunoprecipitation and liquid chromatography tandem mass spectrometry, we found that p-p38 MAPK interacted with Lamin B1 (LMNB1). Activation of α7 nAChR increased the binding between p-p38 MAPK and LMNB1. We confirmed that knockdown of MAPK14 significantly downregulated NFATC4, a key activator of HIV-1 transcription. Taken together, activation of the α7 nAChR could trigger ROS/p-p38 MAPK/LMNB1/NFATC4 signaling pathway enhancing HIV-1 transcription. We have revealed an unrecognized mechanism of α7 nAChR-mediated neuroimmune regulation of HIV infection.
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Affiliation(s)
- Jing Wen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuting Song
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhekai Lin
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shitao Xie
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huaxin Qi
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianhua Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510670, China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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24
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De Dominici M, DeGregori J. Dnmt3a-Mutant Hematopoietic Stem Cell Rewire IFNγ Signaling to Gain Clonal Advantage. Blood Cancer Discov 2022; 3:178-180. [PMID: 35394495 DOI: 10.1158/2643-3230.bcd-22-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
SUMMARY Dnmt3a-mutant stem cells gain a competitive advantage via upregulation of a Txnip-p53-p21 axis and protection from IFNγ induced exhaustion. See related article by Zhang et al., (5) .
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Affiliation(s)
| | - James DeGregori
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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25
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Zhang CR, Ostrander EL, Kukhar O, Mallaney C, Sun J, Haussler E, Celik H, Koh WK, King KY, Gontarz P, Challen GA. Txnip Enhances Fitness of Dnmt3a-Mutant Hematopoietic Stem Cells via p21. Blood Cancer Discov 2022; 3:220-239. [PMID: 35394496 PMCID: PMC9414740 DOI: 10.1158/2643-3230.bcd-21-0132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 02/01/2022] [Accepted: 02/28/2022] [Indexed: 11/16/2022] Open
Abstract
Clonal hematopoiesis (CH) refers to the age-related expansion of specific clones in the blood system, and manifests from somatic mutations acquired in hematopoietic stem cells (HSCs). Most CH variants occur in the gene DNMT3A, but while DNMT3A-mutant CH becomes almost ubiquitous in aging humans, a unifying molecular mechanism to illuminate how DNMT3A-mutant HSCs outcompete their counterparts is lacking. Here, we used interferon gamma (IFNγ) as a model to study the mechanisms by which Dnmt3a mutations increase HSC fitness under hematopoietic stress. We found Dnmt3a-mutant HSCs resist IFNγ-mediated depletion, and IFNγ-signaling is required for clonal expansion of Dnmt3a-mutant HSCs in vivo. Mechanistically, DNA hypomethylation-associated overexpression of Txnip in Dnmt3a-mutant HSCs leads to p53 stabilization and upregulation of p21. This preserves the functional potential of Dnmt3a-mutant HSCs through increased quiescence and resistance to IFNγ-induced apoptosis. These data identify a previously undescribed mechanism to explain increased fitness of DNMT3A-mutant clones under hematopoietic stress. SIGNIFICANCE DNMT3A mutations are common variants in clonal hematopoiesis, and recurrent events in blood cancers. Yet the mechanisms by which these mutations provide hematopoietic stem cells a competitive advantage as a precursor to malignant transformation remain unclear. Here, we use inflammatory stress to uncover molecular mechanisms leading to this fitness advantage. See related article by De Dominici and James DeGregori .
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Affiliation(s)
- Christine R Zhang
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Elizabeth L Ostrander
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Ostap Kukhar
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Cates Mallaney
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jiameng Sun
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Emily Haussler
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Hamza Celik
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Won Kyun Koh
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Katherine Y King
- Section of Infectious Diseases, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Paul Gontarz
- Center of Regenerative Medicine, Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri
| | - Grant A Challen
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
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26
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Zhou X, Ding S, Wang D, Chen L, Feng K, Huang T, Li Z, Cai Y. Identification of Cell Markers and Their Expression Patterns in Skin Based on Single-Cell RNA-Sequencing Profiles. Life (Basel) 2022; 12:life12040550. [PMID: 35455041 PMCID: PMC9025372 DOI: 10.3390/life12040550] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 12/19/2022] Open
Abstract
Atopic dermatitis and psoriasis are members of a family of inflammatory skin disorders. Cellular immune responses in skin tissues contribute to the development of these diseases. However, their underlying immune mechanisms remain to be fully elucidated. We developed a computational pipeline for analyzing the single-cell RNA-sequencing profiles of the Human Cell Atlas skin dataset to investigate the pathological mechanisms of skin diseases. First, we applied the maximum relevance criterion and the Boruta feature selection method to exclude irrelevant gene features from the single-cell gene expression profiles of inflammatory skin disease samples and healthy controls. The retained gene features were ranked by using the Monte Carlo feature selection method on the basis of their importance, and a feature list was compiled. This list was then introduced into the incremental feature selection method that combined the decision tree and random forest algorithms to extract important cell markers and thus build excellent classifiers and decision rules. These cell markers and their expression patterns have been analyzed and validated in recent studies and are potential therapeutic and diagnostic targets for skin diseases because their expression affects the pathogenesis of inflammatory skin diseases.
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Affiliation(s)
- Xianchao Zhou
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shijian Ding
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
| | - Deling Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou 510060, China;
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China;
| | - Kaiyan Feng
- Department of Computer Science, Guangdong AIB Polytechnic College, Guangzhou 510507, China;
| | - Tao Huang
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
| | - Zhandong Li
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, China
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
| | - Yudong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
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27
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Ohtake F. Branched ubiquitin code: from basic biology to targeted protein degradation. J Biochem 2022; 171:361-366. [PMID: 35037035 DOI: 10.1093/jb/mvac002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/05/2022] [Indexed: 11/13/2022] Open
Abstract
Protein ubiquitylation regulates numerous pathways, and the diverse information encoded by various forms of ubiquitylation is known as the ubiquitin code. Recent studies revealed that branched ubiquitin chains are abundant in mammalian cells and regulate important pathways. They include proteasomal degradation of misfolded and disease-causing proteins, regulation of NF-B signaling, and apoptotic cell fate decisions. Targeted protein degradation through chemical degraders emerged as a transformative therapeutic paradigm aimed at inducing the disappearance of unwanted cellular proteins. To further improve the efficacy of target degradation and expand its applications, understanding the molecular mechanism of degraders' action from the view of ubiquitin code biology is required. In this review, I discuss the roles of the ubiquitin code in biological pathways and in chemically induced targeted protein degradation by focusing on the branched ubiquitin codes that we have characterized.
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Affiliation(s)
- Fumiaki Ohtake
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.,Institute for Advanced Life Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
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28
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Zeng X, Li X, Shao M, Xu Y, Shan W, Wei C, Li X, Wang L, Hu Y, Zhao Y, Qian P, Huang H. Integrated Single-Cell Bioinformatics Analysis Reveals Intrinsic and Extrinsic Biological Characteristics of Hematopoietic Stem Cell Aging. Front Genet 2021; 12:745786. [PMID: 34737765 PMCID: PMC8560737 DOI: 10.3389/fgene.2021.745786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/06/2021] [Indexed: 01/07/2023] Open
Abstract
Hematopoietic stem cell (HSC) aging, which is accompanied by loss of self-renewal capacity, myeloid-biased differentiation and increased risks of hematopoietic malignancies, is an important focus in stem cell research. However, the mechanisms underlying HSC aging have not been fully elucidated. In the present study, we integrated 3 independent single-cell transcriptome datasets of HSCs together and identified Stat3 and Ifngr1 as two markers of apoptosis-biased and inflammatory aged HSCs. Besides, common differentially expressed genes (DEGs) between young and aged HSCs were identified and further validated by quantitative RT-PCR. Functional enrichment analysis revealed that these DEGs were predominantly involved in the cell cycle and the tumor necrosis factor (TNF) signaling pathway. We further found that the Skp2-induced signaling pathway (Skp2→Cip1→CycA/CDK2→DP-1) contributed to a rapid transition through G1 phase in aged HSCs. In addition, analysis of the extrinsic alterations on HSC aging revealed the increased expression levels of inflammatory genes in bone marrow microenvironment. Colony formation unit assays showed that inflammatory cytokines promoted cellular senescence and that blockade of inflammatory pathway markedly rejuvenated aged HSC functions and increased B cell output. Collectively, our study elucidated the biological characteristics of HSC aging, and the genes and pathways we identified could be potential biomarkers and targets for the identification and rejuvenation of aged HSCs.
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Affiliation(s)
- Xiangjun Zeng
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Xia Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Mi Shao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Yulin Xu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Wei Shan
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Cong Wei
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Xiaoqing Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Limengmeng Wang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Yongxian Hu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Yanmin Zhao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Pengxu Qian
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China.,Center of Stem Cell and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.,Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
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29
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Han YY, Gu X, Yang CY, Ji HM, Lan YJ, Bi YQ, Si R, Qu J, Cheng MH, Gao J. Protective effect of dimethyl itaconate against fibroblast-myofibroblast differentiation during pulmonary fibrosis by inhibiting TXNIP. J Cell Physiol 2021; 236:7734-7744. [PMID: 34061990 DOI: 10.1002/jcp.30456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/01/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022]
Abstract
Fibroblast-myofibroblast differentiation (FMD) is a critical cellular phenotype during the occurrence and deterioration of pulmonary fibrosis (PF). FMD can increase with an elevated level of reactive oxygen species (ROS) on fibroblasts under oxidative stress. Thioredoxin-interacting protein (TXNIP) is an α-arrestin family protein that regulates the level of intracellular ROS. Nuclear factor erythroid 2-related factor 2 (Nrf2) can protect against FMD in PF. However, the relationship between Nrf2 and TXNIP in FMD remains elusive. Therefore, we established TGF-β1-induced FMD in vitro and bleomycin (BLM)-induced mouse PF model in vivo to explore whether the activation of Nrf2 can inhibit TXNIP-mediated FMD in PF. Dimethyl itaconate (DMI) was selected to activate Nrf2. Our results showed that TXNIP was elevated and FMD was aggravated in mice lung tissues after BLM administration compared with the saline group. Inversely, Nrf2 decreased TXNIP expression and alleviated FMD in PF. In vitro, TXNIP overexpression enhanced FMD and increased the level of ROS. In contrast, TXNIP deficiency by small interfering RNA (siRNA) attenuated TGF-β1-induced FMD and reduced ROS. An increase in ROS by H2 O2 can upregulate TXNIP expression. Moreover, Nrf2 also inhibited TGF-β1-induced FMD and the increase of ROS, with reducing expression of TXNIP, and the inhibitory effect was better than TXNIP siRNA. These results suggest that activation of Nrf2 by DMI can protect against PF via inhibiting TXNIP expression. Our study may provide new therapeutic targets and treatment approaches for PF.
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Affiliation(s)
- Yong-Yue Han
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xuan Gu
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Chong-Yang Yang
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Hui-Min Ji
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yue-Jiao Lan
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yu-Qian Bi
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Rong Si
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Jiao Qu
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Ming-Han Cheng
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Jian Gao
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
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Chen Y, Fang S, Ding Q, Jiang R, He J, Wang Q, Jin Y, Huang X, Liu S, Capitano ML, Trinh T, Teng Y, Meng Q, Wan J, Broxmeyer HE, Guo B. ADGRG1 enriches for functional human hematopoietic stem cells following ex vivo expansion-induced mitochondrial oxidative stress. J Clin Invest 2021; 131:e148329. [PMID: 34464351 PMCID: PMC8516455 DOI: 10.1172/jci148329] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/24/2021] [Indexed: 12/29/2022] Open
Abstract
The heterogeneity of human hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs) under stress conditions such as ex vivo expansion is poorly understood. Here, we report that the frequencies of SCID-repopulating cells were greatly decreased in cord blood (CB) CD34+ HSCs and HPCs upon ex vivo culturing. Transcriptomic analysis and metabolic profiling demonstrated that mitochondrial oxidative stress of human CB HSCs and HPCs notably increased, along with loss of stemness. Limiting dilution analysis revealed that functional human HSCs were enriched in cell populations with low levels of mitochondrial ROS (mitoROS) during ex vivo culturing. Using single-cell RNA-Seq analysis of the mitoROS low cell population, we demonstrated that functional HSCs were substantially enriched in the adhesion GPCR G1-positive (ADGRG1+) population of CD34+CD133+ CB cells upon ex vivo expansion stress. Gene set enrichment analysis revealed that HSC signature genes including MSI2 and MLLT3 were enriched in CD34+CD133+ADGRG1+ CB HSCs. Our study reveals that ADGRG1 enriches for functional human HSCs under oxidative stress during ex vivo culturing, which can be a reliable target for drug screening of agonists of HSC expansion.
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Affiliation(s)
- Yandan Chen
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuyi Fang
- Department of BioHealth Informatics, Indiana University School of Informatics and Computing at Indiana University–Purdue University Indianapolis (IUPUI), Indianapolis, Indiana, USA
| | - Qingwei Ding
- Department of Vascular Surgery, General Surgery Clinical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rongzhen Jiang
- Obstetrics Intensive Care Center, The Institute of Obstetrics and Gynecology, Department of Obstetrics and Gynecology, Affiliated Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jiefeng He
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qin Wang
- Department of Gynaecology and Obstetrics, the First People’s Hospital of Kunshan, Kunshan, China
| | - Yuting Jin
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Obstetrics Intensive Care Center, The Institute of Obstetrics and Gynecology, Department of Obstetrics and Gynecology, Affiliated Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xinxin Huang
- Xuhui Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Sheng Liu
- Department of Medical and Molecular Genetics
| | | | - Thao Trinh
- Department of Microbiology and Immunology, and
| | - Yincheng Teng
- Obstetrics Intensive Care Center, The Institute of Obstetrics and Gynecology, Department of Obstetrics and Gynecology, Affiliated Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qingyou Meng
- Department of Vascular Surgery, General Surgery Clinical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Wan
- Department of BioHealth Informatics, Indiana University School of Informatics and Computing at Indiana University–Purdue University Indianapolis (IUPUI), Indianapolis, Indiana, USA
- Department of Medical and Molecular Genetics
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | | | - Bin Guo
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Ali D, Alhattab D, Jafar H, Alzubide M, Sharar N, Bdour S, Awidi A. Differential Marker Expression between Keratinocyte Stem Cells and Their Progeny Generated from a Single Colony. Int J Mol Sci 2021; 22:ijms221910810. [PMID: 34639148 PMCID: PMC8509450 DOI: 10.3390/ijms221910810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 01/31/2023] Open
Abstract
The stemness in keratinocyte stem cells (KSCs) is determined by their gene expression patterns. KSCs are crucial in maintaining epidermal homeostasis and wound repair and are widely used candidates for therapeutic applications. Although several studies have reported their positive identifiers, unique biomarkers for KSCs remain elusive. Here, we aim to identify potential candidate stem cell markers. Human epidermal keratinocytes (HEKs) from neonatal foreskin tissues were isolated and cultured. Single-cell clonal analysis identified and characterized three types of cells: KSCs (holoclones), transient amplifying cells (TACs; meroclones), and differentiated cells (DSCs; paraclones). The clonogenic potential of KSCs demonstrated the highest proliferation potential of KSCs, followed by TACs and DSCs, respectively. Whole-transcriptome analysis using microarray technology unraveled the molecular signatures of these cells. These results were validated by quantitative real-time polymerase chain reaction and flow cytometry analysis. A total of 301 signature upregulated and 149 downregulated differentially expressed genes (DEGs) were identified in the KSCs, compared to TACs and DSCs. Furthermore, DEG analyses revealed new sets of genes related to cell proliferation, cell adhesion, surface makers, and regulatory factors. In conclusion, this study provides a useful source of information for the identification of potential SC-specific candidate markers.
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Affiliation(s)
- Dema Ali
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
- Department of Biological Sciences, Faculty of Science, The University of Jordan, Amman 11942, Jordan
| | - Dana Alhattab
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
- Laboratory for Nanomedicine, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Hanan Jafar
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
- Department of Anatomy and Histology, School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Malak Alzubide
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
| | - Nour Sharar
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
| | - Salwa Bdour
- Department of Clinical Laboratory Sciences, Faculty of Science, The University of Jordan, Amman 11942, Jordan
- Correspondence: (S.B.); (A.A.)
| | - Abdalla Awidi
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan; (D.A.); (D.A.); (H.J.); (M.A.); (N.S.)
- Department of Hematology and Oncology, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan
- Correspondence: (S.B.); (A.A.)
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TP53 in Acute Myeloid Leukemia: Molecular Aspects and Patterns of Mutation. Int J Mol Sci 2021; 22:ijms221910782. [PMID: 34639121 PMCID: PMC8509740 DOI: 10.3390/ijms221910782] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 01/10/2023] Open
Abstract
Mutation of the tumor suppressor gene, TP53, is associated with abysmal survival outcomes in acute myeloid leukemia (AML). Although it is the most commonly mutated gene in cancer, its occurrence is observed in only 5–10% of de novo AML, and in 30% of therapy related AML (t-AML). TP53 mutation serves as a prognostic marker of poor response to standard-of-care chemotherapy, particularly in t-AML and AML with complex cytogenetics. In light of a poor response to traditional chemotherapy and only a modest improvement in outcome with hypomethylation-based interventions, allogenic stem cell transplant is routinely recommended in these cases, albeit with a response that is often short lived. Despite being frequently mutated across the cancer spectrum, progress and enthusiasm for the development of p53 targeted therapeutic interventions is lacking and to date there is no approved drug that mitigates the effects of TP53 mutation. There is a mounting body of evidence indicating that p53 mutants differ in functionality and form from typical AML cases and subsequently display inconsistent responses to therapy at the cellular level. Understanding this pathobiological activity is imperative to the development of effective therapeutic strategies. This review aims to provide a comprehensive understanding of the effects of TP53 on the hematopoietic system, to describe its varying degree of functionality in tumor suppression, and to illustrate the need for the adoption of personalized therapeutic strategies to target distinct classes of the p53 mutation in AML management.
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The REDD1/TXNIP Complex Accelerates Oxidative Stress-Induced Apoptosis of Nucleus Pulposus Cells through the Mitochondrial Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7397516. [PMID: 34603601 PMCID: PMC8481043 DOI: 10.1155/2021/7397516] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/07/2021] [Indexed: 01/19/2023]
Abstract
The death of nucleus pulposus (NP) cells is an important cause of intervertebral disc (IVD) degeneration. Redox disturbance caused by dysfunctional mitochondria has been considered as a vital risk for NP cell survival. It is valuable to identify key proteins maintaining mitochondrial function in NP cells. A previous study found that regulated in development and DNA damage response 1 (REDD1) are upregulated during intervertebral disc degeneration and that REDD1 can cause NP cell apoptosis. Thus, the present study further explores the effect of REDD1 on IVD degeneration. Our results showed that REDD1 promotes NP cell apoptosis via the mitochondrial pathway. Importantly, REDD1 formed a complex with TXNIP to strengthen its own action, and the combination was consolidated under H2O2-induced oxidative stress. The combined inhibition of the REDD1/TXNIP complex was better than that of REDD1 or TXNIP alone in restoring cell proliferation and accelerating apoptosis. Moreover, p53 acts as the transcription factor of REDD1 to regulate the REDD1/TXNIP complex under oxidative stress. Altogether, our results demonstrated that the REDD1/TXNIP complex mediated H2O2-induced human NP cell apoptosis and IVD degeneration through the mitochondrial pathway. Interferences on these sites to achieve mitochondrial redox homeostasis may be a novel therapeutic strategy for oxidative stress-associated IVD degeneration.
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34
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Wen J, Wang D. Deciphering the PTM codes of the tumor suppressor p53. J Mol Cell Biol 2021; 13:774-785. [PMID: 34289043 PMCID: PMC8782589 DOI: 10.1093/jmcb/mjab047] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/14/2022] Open
Abstract
The genome guardian p53 functions as a transcription factor that senses numerous cellular stresses and orchestrates the corresponding transcriptional events involved in determining various cellular outcomes, including cell cycle arrest, apoptosis, senescence, DNA repair, and metabolic regulation. In response to diverse stresses, p53 undergoes multiple posttranslational modifications (PTMs) that coordinate with intimate interdependencies to precisely modulate its diverse properties in given biological contexts. Notably, PTMs can recruit ‘reader’ proteins that exclusively recognize specific modifications and facilitate the functional readout of p53. Targeting PTM–reader interplay has been developing into a promising cancer therapeutic strategy. In this review, we summarize the advances in deciphering the ‘PTM codes’ of p53, focusing particularly on the mechanisms by which the specific reader proteins functionally decipher the information harbored within these PTMs of p53. We also highlight the potential applications of intervention with p53 PTM–reader interactions in cancer therapy and discuss perspectives on the ‘PTMomic’ study of p53 and other proteins.
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Affiliation(s)
- Jia Wen
- State Key Laboratory of Medical Molecular Biology & Department of Medical Genetics, Institute of Basic Medical Sciences & School of Basic Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Donglai Wang
- State Key Laboratory of Medical Molecular Biology & Department of Medical Genetics, Institute of Basic Medical Sciences & School of Basic Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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35
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Tan K, Song HW, Wilkinson MF. RHOX10 drives mouse spermatogonial stem cell establishment through a transcription factor signaling cascade. Cell Rep 2021; 36:109423. [PMID: 34289349 PMCID: PMC8357189 DOI: 10.1016/j.celrep.2021.109423] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/17/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
Spermatogonial stem cells (SSCs) are essential for male fertility. Here, we report that mouse SSC generation is driven by a transcription factor (TF) cascade controlled by the homeobox protein, RHOX10, which acts by driving the differentiation of SSC precursors called pro-spermatogonia (ProSG). We identify genes regulated by RHOX10 in ProSG in vivo and define direct RHOX10-target genes using several approaches, including a rapid temporal induction assay: iSLAMseq. Together, these approaches identify temporal waves of RHOX10 direct targets, as well as RHOX10 secondary-target genes. Many of the RHOX10-regulated genes encode proteins with known roles in SSCs. Using an in vitro ProSG differentiation assay, we find that RHOX10 promotes mouse ProSG differentiation through a conserved transcriptional cascade involving the key germ-cell TFs DMRT1 and ZBTB16. Our study gives important insights into germ cell development and provides a blueprint for how to define TF cascades.
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Affiliation(s)
- Kun Tan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Hye-Won Song
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Miles F Wilkinson
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Institute of Genomic Medicine, University of California, San Diego, La Jolla, CA 92093, USA.
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36
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Cao X, He W, Pang Y, Cao Y, Qin A. Redox-dependent and independent effects of thioredoxin interacting protein. Biol Chem 2021; 401:1215-1231. [PMID: 32845855 DOI: 10.1515/hsz-2020-0181] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/13/2020] [Indexed: 12/12/2022]
Abstract
Thioredoxin interacting protein (TXNIP) is an important physiological inhibitor of the thioredoxin (TXN) redox system in cells. Regulation of TXNIP expression and/or activity not only plays an important role in redox regulation but also exerts redox-independent physiological effects that exhibit direct pathophysiological consequences including elevated inflammatory response, aberrant glucose metabolism, cellular senescence and apoptosis, cellular immunity, and tumorigenesis. This review provides a brief overview of the current knowledge concerning the redox-dependent and independent roles of TXNIP and its relevance to various disease states. The implications for the therapeutic targeting of TXNIP will also be discussed.
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Affiliation(s)
- Xiankun Cao
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Shanghai, 200011,People's Republic of China
| | - Wenxin He
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Shanghai, 200011,People's Republic of China
| | - Yichuan Pang
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011,People's Republic of China
| | - Yu Cao
- Department of Orthopaedics and Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Shanghai, 200011,People's Republic of China
| | - An Qin
- Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639, Zhizaoju Road, Shanghai, 200011,People's Republic of China
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Samimi A, Khodayar MJ, Alidadi H, Khodadi E. The Dual Role of ROS in Hematological Malignancies: Stem Cell Protection and Cancer Cell Metastasis. Stem Cell Rev Rep 2021; 16:262-275. [PMID: 31912368 DOI: 10.1007/s12015-019-09949-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Reactive oxygen species (ROS) play crucial role in hematopoiesis, regulation of differentiation, self-renewal, and the balance between quiescence and proliferation of hematopoietic stem cells (HSCs). The HSCs are a small population of undifferentiated cells that reside in the bone marrow (BM) and can undergo self-renewal by giving rise to mature cells. METHODS Relevant literature was identified through a PubMed search (2000-2019) of English-language papers using the following terms: reactive oxygen species, hematopoietic stem cell, leukemic stem cell, leukemia and chemotherapy. RESULTS HSCs are very sensitive to high levels of ROS and increased production of ROS have been attributed to HSC aging. HSC aging induced by both cell intrinsic and extrinsic factors is linked to impaired HSC self-renewal and regeneration. In addition, the elevated ROS levels might even trigger differentiation of Leukemic stem cells (LSCs) and ROS may be involved in the initiation and progression of hematological malignancies, such as leukemia. CONCLUSION Targeting genes involved in ROS in LSCs and HSCs are increasingly being used as a critical target for therapeutic interventions. Appropriate concentration of ROS may be an optimal therapeutic target for treatment of leukemia during chemotherapy, but still more studies are required to better understanding of the of ROS role in blood disorders.
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Affiliation(s)
- Azin Samimi
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Legal Medicine Organization, Legal Medicine Research Center, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hadis Alidadi
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elahe Khodadi
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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HCMV-controlling NKG2C+ NK cells originate from novel circulating inflammatory precursors. J Allergy Clin Immunol 2021; 147:2343-2357. [DOI: 10.1016/j.jaci.2020.12.648] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 12/18/2022]
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39
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Soh R, Hardy A, Zur Nieden NI. The FOXO signaling axis displays conjoined functions in redox homeostasis and stemness. Free Radic Biol Med 2021; 169:224-237. [PMID: 33878426 PMCID: PMC9910585 DOI: 10.1016/j.freeradbiomed.2021.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023]
Abstract
Previous views of reactive oxygen species (ROS) depicted them as harmful byproducts of metabolism as uncontrolled levels of ROS can lead to DNA damage and cell death. However, recent studies have shed light into the key role of ROS in the self-renewal or differentiation of the stem cell. The interplay between ROS levels, metabolism, and the downstream redox signaling pathways influence stem cell fate. In this review we will define ROS, explain how they are generated, and how ROS signaling can influence transcription factors, first and foremost forkhead box-O transcription factors, that shape not only the cellular redox state, but also stem cell fate. Now that studies have illustrated the importance of redox homeostasis and the role of redox signaling, understanding the mechanisms behind this interplay will further shed light into stem cell biology.
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Affiliation(s)
- Ruthia Soh
- Department of Molecular, Cell and Systems Biology, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, 92521, CA, USA
| | - Ariana Hardy
- Department of Molecular, Cell and Systems Biology, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, 92521, CA, USA
| | - Nicole I Zur Nieden
- Department of Molecular, Cell and Systems Biology, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, 92521, CA, USA; Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, 92521, CA, USA.
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Rampal RK, Pinzon-Ortiz M, Somasundara AVH, Durham B, Koche R, Spitzer B, Mowla S, Krishnan A, Li B, An W, Derkach A, Devlin S, Rong X, Longmire T, Eisman SE, Cordner K, Whitfield JT, Vanasse G, Cao ZA, Levine RL. Therapeutic Efficacy of Combined JAK1/2, Pan-PIM, and CDK4/6 Inhibition in Myeloproliferative Neoplasms. Clin Cancer Res 2021; 27:3456-3468. [PMID: 33782031 DOI: 10.1158/1078-0432.ccr-20-4898] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/01/2021] [Accepted: 03/26/2021] [Indexed: 12/22/2022]
Abstract
PURPOSE The JAK1/2 inhibitor ruxolitinib has demonstrated significant benefits for patients with myeloproliferative neoplasms (MPN). However, patients often lose response to ruxolitinib or suffer disease progression despite therapy with ruxolitinib. These observations have prompted efforts to devise treatment strategies to improve therapeutic efficacy in combination with ruxolitinib therapy. Activation of JAK-STAT signaling results in dysregulation of key downstream pathways, notably increased expression of cell-cycle mediators including CDC25A and the PIM kinases. EXPERIMENTAL DESIGN Given the involvement of cell-cycle mediators in MPNs, we sought to examine the efficacy of therapy combining ruxolitinib with a CDK4/6 inhibitor (LEE011) and a PIM kinase inhibitor (PIM447). We utilized JAK2-mutant cell lines, murine models, and primary MPN patient samples for these studies. RESULTS Exposure of JAK2-mutant cell lines to the triple combination of ruxolitinib, LEE011, and PIM447 resulted in expected on-target pharmacodynamic effects, as well as increased apoptosis and a decrease in the proportion of cells in S-phase, compared with ruxolitinib. As compared with ruxolitinib monotherapy, combination therapy led to reductions in spleen and liver size, reduction of bone marrow reticulin fibrosis, improved overall survival, and elimination of disease-initiating capacity of treated bone marrow, in murine models of MPN. Finally, the triple combination reduced colony formation capacity of primary MPN patient samples to a greater extent than ruxolitinib. CONCLUSIONS The triple combination of ruxolitinib, LEE011, and PIM447 represents a promising therapeutic strategy with the potential to increase therapeutic responses in patients with MPN.
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Affiliation(s)
- Raajit K Rampal
- Leukemia Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York.,Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York
| | | | - Amritha Varshini Hanasoge Somasundara
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Benjamin Durham
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York.,Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Richard Koche
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Barbara Spitzer
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Shoron Mowla
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Aishwarya Krishnan
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Bing Li
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Wenbin An
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Andriy Derkach
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean Devlin
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Xianhui Rong
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts
| | - Tyler Longmire
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts
| | - Shira Esther Eisman
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Keith Cordner
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Justin T Whitfield
- Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Gary Vanasse
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts
| | - Zhu A Cao
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts.
| | - Ross L Levine
- Leukemia Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York. .,Center for Hematologic Malignancies, Memorial Sloan-Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York
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Investigating the Thioredoxin and Glutathione Systems' Response in Lymphoma Cells after Treatment with [Au(d2pype)2]CL. Antioxidants (Basel) 2021; 10:antiox10010104. [PMID: 33451071 PMCID: PMC7828567 DOI: 10.3390/antiox10010104] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 01/19/2023] Open
Abstract
Lymphoma is a blood cancer comprising various subtypes. Although effective therapies are available, some patients fail to respond to treatment and can suffer from side effects. Antioxidant systems, especially the thioredoxin (Trx) and glutathione (GSH) systems, are known to enhance cancer cell survival, with thioredoxin reductase (TrxR) recently reported as a potential anticancer target. Since the GSH system can compensate for some Trx system functions, we investigated its response in three lymphoma cell lines after inhibiting TrxR activity with [Au(d2pype)2]Cl, a known TrxR inhibitor. [Au(d2pype)2]Cl increased intracellular reactive oxygen species (ROS) levels and induced caspase-3 activity leading to cell apoptosis through inhibiting both TrxR and glutathione peroxidase (Gpx) activity. Expression of the tumour suppresser gene TXNIP increased, while GPX1 and GPX4 expression, which are related to poor prognosis of lymphoma patients, decreased. Unlike SUDHL2 and SUDHL4 cells, which exhibited a decreased GSH/GSSG ratio after treatment, in KMH2 cells the ratio remained unchanged, while glutathione reductase and glutaredoxin expression increased. Since KMH2 cells were less sensitive to treatment with [Au(d2pype)2]Cl, the GSH system may play a role in protecting cells from apoptosis after TrxR inhibition. Overall, our study demonstrates that inhibition of TrxR represents a valid therapeutic approach for lymphoma.
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Toro A, Anselmino N, Solari C, Francia M, Oses C, Sanchis P, Bizzotto J, Vazquez Echegaray C, Petrone MV, Levi V, Vazquez E, Guberman A. Novel Interplay between p53 and HO-1 in Embryonic Stem Cells. Cells 2020; 10:cells10010035. [PMID: 33383653 PMCID: PMC7823265 DOI: 10.3390/cells10010035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 02/06/2023] Open
Abstract
Stem cells genome safeguarding requires strict oxidative stress control. Heme oxygenase-1 (HO-1) and p53 are relevant components of the cellular defense system. p53 controls cellular response to multiple types of harmful stimulus, including oxidative stress. Otherwise, besides having a protective role, HO-1 is also involved in embryo development and in embryonic stem (ES) cells differentiation. Although both proteins have been extensively studied, little is known about their relationship in stem cells. The aim of this work is to explore HO-1-p53 interplay in ES cells. We studied HO-1 expression in p53 knockout (KO) ES cells and we found that they have higher HO-1 protein levels but similar HO-1 mRNA levels than the wild type (WT) ES cell line. Furthermore, cycloheximide treatment increased HO-1 abundance in p53 KO cells suggesting that p53 modulates HO-1 protein stability. Notably, H2O2 treatment did not induce HO-1 expression in p53 KO ES cells. Finally, SOD2 protein levels are also increased while Sod2 transcripts are not in KO cells, further suggesting that the p53 null phenotype is associated with a reinforcement of the antioxidant machinery. Our results demonstrate the existence of a connection between p53 and HO-1 in ES cells, highlighting the relationship between these stress defense pathways.
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Affiliation(s)
- Ayelén Toro
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Nicolás Anselmino
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Claudia Solari
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Marcos Francia
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Camila Oses
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Pablo Sanchis
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Juan Bizzotto
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Camila Vazquez Echegaray
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - María Victoria Petrone
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Valeria Levi
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
| | - Elba Vazquez
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
- Correspondence: (E.V.); (A.G.); Tel.: +54-91144087796 (E.V.); +54-115-285-8683 (A.G.)
| | - Alejandra Guberman
- CONICET, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina; (A.T.); (N.A.); (C.S.); (M.F.); (C.O.); (P.S.); (J.B.); (C.V.E.); (M.V.P.); (V.L.)
- Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
- Correspondence: (E.V.); (A.G.); Tel.: +54-91144087796 (E.V.); +54-115-285-8683 (A.G.)
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Kim DO, Byun JE, Kim WS, Kim MJ, Choi JH, Kim H, Choi E, Kim TD, Yoon SR, Noh JY, Park YJ, Lee J, Cho HJ, Lee HG, Min SH, Choi I, Jung H. TXNIP Regulates Natural Killer Cell-Mediated Innate Immunity by Inhibiting IFN-γ Production during Bacterial Infection. Int J Mol Sci 2020; 21:ijms21249499. [PMID: 33327533 PMCID: PMC7765025 DOI: 10.3390/ijms21249499] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/13/2022] Open
Abstract
The function of natural killer (NK) cell-derived interferon-γ (IFN-γ) expands to remove pathogens by increasing the ability of innate immune cells. Here, we identified the critical role of thioredoxin-interacting protein (TXNIP) in the production of IFN-γ in NK cells during bacterial infection. TXNIP inhibited the production of IFN-γ and the activation of transforming growth factor β-activated kinase 1 (TAK1) activity in primary mouse and human NK cells. TXNIP directly interacted with TAK1 and inhibited TAK1 activity by interfering with the complex formation between TAK1 and TAK1 binding protein 1 (TAB1). Txnip−/− (KO) NK cells enhanced the activation of macrophages by inducing IFN-γ production during Pam3CSK4 stimulation or Staphylococcus aureus (S. aureus) infection and contributed to expedite the bacterial clearance. Our findings suggest that NK cell-derived IFN-γ is critical for host defense and that TXNIP plays an important role as an inhibitor of NK cell-mediated macrophage activation by inhibiting the production of IFN-γ during bacterial infection.
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Affiliation(s)
- Dong Oh Kim
- Department of Innovative Toxicology Research, Korea Institute of Toxicology, Yuseong-gu, Daejeon 34114, Korea;
| | - Jae-Eun Byun
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Biochemistry, School of Life Sciences, Chungbuk National University, Cheongju 28644, Korea
| | - Won Sam Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Mi Jeong Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea;
| | - Jung Ha Choi
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Hanna Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Eunji Choi
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Tae-Don Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Functional Genomics, Korea University of Science and Technology (UST), Yuseong-gu, Daejeon 34113, Korea
| | - Suk Ran Yoon
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Functional Genomics, Korea University of Science and Technology (UST), Yuseong-gu, Daejeon 34113, Korea
| | - Ji-Yoon Noh
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Young-Jun Park
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (Y.-J.P.); (J.L.)
| | - Jungwoon Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (Y.-J.P.); (J.L.)
| | - Hee Jun Cho
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
| | - Hee Gu Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Biomolecular Science, Korea University of Science and Technology (UST), Yuseong-gu, Daejeon 34113, Korea
| | - Sang-Hyun Min
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Chumbokro Dong-gu, Daegu 41061, Korea;
| | - Inpyo Choi
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Functional Genomics, Korea University of Science and Technology (UST), Yuseong-gu, Daejeon 34113, Korea
- Correspondence: (I.C.); (H.J.)
| | - Haiyoung Jung
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu, Daejeon 34141, Korea; (J.-E.B.); (W.S.K.); (J.H.C.); (H.K.); (E.C.); (T.-D.K.); (S.R.Y.); (J.-Y.N.); (H.J.C.); (H.G.L.)
- Department of Functional Genomics, Korea University of Science and Technology (UST), Yuseong-gu, Daejeon 34113, Korea
- Correspondence: (I.C.); (H.J.)
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Broxmeyer HE, Liu Y, Kapur R, Orschell CM, Aljoufi A, Ropa JP, Trinh T, Burns S, Capitano ML. Fate of Hematopoiesis During Aging. What Do We Really Know, and What are its Implications? Stem Cell Rev Rep 2020; 16:1020-1048. [PMID: 33145673 PMCID: PMC7609374 DOI: 10.1007/s12015-020-10065-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2020] [Indexed: 12/11/2022]
Abstract
There is an ongoing shift in demographics such that older persons will outnumber young persons in the coming years, and with it age-associated tissue attrition and increased diseases and disorders. There has been increased information on the association of the aging process with dysregulation of hematopoietic stem (HSC) and progenitor (HPC) cells, and hematopoiesis. This review provides an extensive up-to date summary on the literature of aged hematopoiesis and HSCs placed in context of potential artifacts of the collection and processing procedure, that may not be totally representative of the status of HSCs in their in vivo bone marrow microenvironment, and what the implications of this are for understanding aged hematopoiesis. This review covers a number of interactive areas, many of which have not been adequately explored. There are still many unknowns and mechanistic insights to be elucidated to better understand effects of aging on the hematopoietic system, efforts that will take multidisciplinary approaches, and that could lead to means to ameliorate at least some of the dysregulation of HSCs and HPCs associated with the aging process. Graphical Abstract.
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Affiliation(s)
- Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA.
| | - Yan Liu
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Reuben Kapur
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christie M Orschell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Arafat Aljoufi
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - James P Ropa
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - Thao Trinh
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - Sarah Burns
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Maegan L Capitano
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA.
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Thioredoxin Interacting Protein (TXNIP) Is Differentially Expressed in Human Tumor Samples but Is Absent in Human Tumor Cell Line Xenografts: Implications for Its Use as an Immunosurveillance Marker. Cancers (Basel) 2020; 12:cancers12103028. [PMID: 33081035 PMCID: PMC7603212 DOI: 10.3390/cancers12103028] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/03/2020] [Accepted: 10/16/2020] [Indexed: 12/22/2022] Open
Abstract
Simple Summary The metabolic protein TXNIP plays a crucial role in various cellular processes. Abnormal TXNIP levels are notable, e.g., in type II diabetes, cardiovascular diseases, and tumors. Using immunohistochemical staining for TXNIP in different tumor entities, we give new insights of TXNIP expression on the protein level. In human tumors, staining intensity inversely correlated with aggressiveness of the tumor entity. In contrast, human tumor cell lines grown in mice (xenografts), consistently revealed no staining. Hence, loss of TXNIP suggests a critical role for the development of tumors in xenografts. Furthermore, we investigated TXNIP staining of immunocompetent cells in the proximity of the xenograft tumor tissue. Our findings demonstrate that TXNIP downregulation is a common feature in human tumor xenograft models. Subsequently, TXNIP expression might be used to monitor the functional state of tumor-infiltrating leukocytes in tissue sections and may help to predict response to modern immune therapy. Abstract Thioredoxin interacting protein (TXNIP) is a metabolic protein critically involved in redox homeostasis and has been proposed as a tumor suppressor gene in a variety of malignancies. Accordingly, TXNIP is downregulated in breast, bladder, and gastric cancer and in tumor transplant models TXNIP overexpression inhibits growth and metastasis. As TXNIP protein expression has only been investigated in few malignancies, we employed immunohistochemical detection in a large multi-tumor tissue microarray consisting of 2,824 samples from 94 different tumor entities. In general, TXNIP protein was present only in a small proportion of primary tumor samples and in these cases was differently expressed depending on tumor stage and subtype (e.g., renal cell carcinoma, thyroid cancer, breast cancer, and ductal pancreatic cancer). Further, TXNIP protein expression was determined in primary mouse xenograft tumors derived from human cancer cell lines and was immunohistochemically absent in all xenograft tumors investigated. Intriguingly, TXNIP expression became gradually lower in the proximity of the primary tumor tissue and was absent in leukocytes directly adjacent to tumor tissue. In conclusion, these findings suggest that TXNIP downregulation is as a common feature in human tumor xenograft models and that intra-tumoral leukocytes down-regulate TXNIP. Hence TXNIP expression might be used to monitor the functional state of tumor-infiltrating leukocytes in tissue sections.
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Sill H, Zebisch A, Haase D. Acute Myeloid Leukemia and Myelodysplastic Syndromes with TP53 Aberrations - A Distinct Stem Cell Disorder. Clin Cancer Res 2020; 26:5304-5309. [PMID: 32816950 PMCID: PMC7116522 DOI: 10.1158/1078-0432.ccr-20-2272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/22/2020] [Accepted: 08/04/2020] [Indexed: 11/16/2022]
Abstract
The tumor suppressor p53 exerts pivotal roles in hematopoietic stem cell (HSC) homeostasis. Mutations of the TP53 gene have recently been described in individuals with clonal hematopoiesis conferring substantial risk of developing blood cancers. In patients with acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS), TP53 aberrations-mutations, deletions, and a combination thereof-are encountered at a constant frequency of approximately 10%. These aberrations affect HSCs transforming them into preleukemic stem cells, pinpointing their central role in leukemogenesis. AML and MDS with TP53 aberrations are characterized by complex chromosomal aberrations. Respective patients experience a dismal long-term outcome following treatment with both intensive and nonintensive regimens including novel agents like venetoclax combinations or even allogeneic HSC transplantation. However, according to the 2016 WHO classification, AML and MDS with TP53 aberrations are still regarded as separate disease entities. On the basis of their common biological and clinical features, we propose to classify AML and MDS with TP53 aberrations as a single, distinct stem cell disorder with a unique genetic make-up, comparable with the WHO classification of "AML with recurrent genetic abnormalities." This approach will have implications for basic and translational research endeavors, aid in harmonization of current treatment strategies, and facilitate the development of master trials targeting a common deleterious driver event.
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Affiliation(s)
- Heinz Sill
- Division of Hematology, Medical University of Graz, Graz, Austria.
| | - Armin Zebisch
- Division of Hematology, Medical University of Graz, Graz, Austria
- Otto-Loewi-Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, Austria
| | - Detlef Haase
- Clinics of Hematology and Medical Oncology, University Medical Center, Georg-August-University, Goettingen, Germany
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Subramani A, Griggs P, Frantzen N, Mendez J, Tucker J, Murriel J, Sircy LM, Millican GE, McClelland EE, Seipelt-Thiemann RL, Nelson DE. Intracellular Cryptococcus neoformans disrupts the transcriptome profile of M1- and M2-polarized host macrophages. PLoS One 2020; 15:e0233818. [PMID: 32857777 PMCID: PMC7454990 DOI: 10.1371/journal.pone.0233818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023] Open
Abstract
Macrophages serve as a first line of defense against infection with the facultative intracellular pathogen, Cryptococcus neoformans (Cn). However, the ability of these innate phagocytic cells to destroy ingested Cn is strongly influenced by polarization state with classically (M1) activated macrophages better able to control cryptococcal infections than alternatively (M2) activated cells. While earlier studies have demonstrated that intracellular Cn minimally affects the expression of M1 and M2 markers, the impact on the broader transcriptome associated with these states remains unclear. To investigate this, an in vitro cell culture model of intracellular infection together with RNA sequencing-based transcriptome profiling was used to measure the impact of Cn infection on gene expression in both polarization states. The gene expression profile of both M1 and M2 cells was extensively altered to become more like naive (M0) macrophages. Gene ontology analysis suggested that this involved changes in the activity of the Janus kinase-signal transducers and activators of transcription (JAK-STAT), p53, and nuclear factor-κB (NF-κB) pathways. Analyses of the principle polarization markers at the protein-level also revealed discrepancies between the RNA- and protein-level responses. In contrast to earlier studies, intracellular Cn was found to increase protein levels of the M1 marker iNos. In addition, common gene expression changes were identified that occurred post-Cn infection, independent of polarization state. This included upregulation of the transcriptional co-regulator Cited1, which was also apparent at the protein level in M1-polarized macrophages. These changes constitute a transcriptional signature of macrophage Cn infection and provide new insights into how Cn impacts gene expression and the phenotype of host phagocytes.
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Affiliation(s)
- Aarthi Subramani
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - Prianca Griggs
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - Niah Frantzen
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - James Mendez
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - Jamila Tucker
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
- Microbiology, Immunology, and Molecular Genetics Department, University of Kentucky, Lexington, KY, United States of America
| | - Jada Murriel
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - Linda M. Sircy
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
| | - Grace E. Millican
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
| | - Erin E. McClelland
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
- M&P Associates, Inc., Murfreesboro, TN, United States of America
| | | | - David E. Nelson
- Biology Department, Middle Tennessee State University, Murfreesboro, TN, United States of America
- * E-mail:
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Eriksson SE, Ceder S, Bykov VJN, Wiman KG. p53 as a hub in cellular redox regulation and therapeutic target in cancer. J Mol Cell Biol 2020; 11:330-341. [PMID: 30892598 PMCID: PMC6734141 DOI: 10.1093/jmcb/mjz005] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 12/21/2018] [Accepted: 02/11/2019] [Indexed: 12/25/2022] Open
Abstract
The TP53 tumor suppressor gene encodes a DNA-binding transcription factor that regulates multiple cellular processes including cell growth and cell death. The ability of p53 to bind to DNA and activate transcription is tightly regulated by post-translational modifications and is dependent on a reducing cellular environment. Some p53 transcriptional target genes are involved in regulation of the cellular redox homeostasis, e.g. TIGAR and GLS2. A large fraction of human tumors carry TP53 mutations, most commonly missense mutations that lead to single amino acid substitutions in the core domain. Mutant p53 proteins can acquire so called gain-of-function activities and influence the cellular redox balance in various ways, for instance by binding of the Nrf2 transcription factor, a major regulator of cellular redox state. The DNA-binding core domain of p53 has 10 cysteine residues, three of which participate in holding a zinc atom that is critical for p53 structure and function. Several novel compounds that refold and reactivate missense mutant p53 bind to specific p53 cysteine residues. These compounds can also react with other thiols and target components of the cellular redox system, such as glutathione. Dual targeting of mutant p53 and redox homeostasis may allow more efficient treatment of cancer.
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Affiliation(s)
- Sofi E Eriksson
- Karolinska Institutet, Department of Oncology-Pathology, BioClinicum, Stockholm, Sweden
| | - Sophia Ceder
- Karolinska Institutet, Department of Oncology-Pathology, BioClinicum, Stockholm, Sweden
| | - Vladimir J N Bykov
- Karolinska Institutet, Department of Oncology-Pathology, BioClinicum, Stockholm, Sweden
| | - Klas G Wiman
- Karolinska Institutet, Department of Oncology-Pathology, BioClinicum, Stockholm, Sweden
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Cho HJ, Lee J, Yoon SR, Lee HG, Jung H. Regulation of Hematopoietic Stem Cell Fate and Malignancy. Int J Mol Sci 2020; 21:ijms21134780. [PMID: 32640596 PMCID: PMC7369689 DOI: 10.3390/ijms21134780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
The regulation of hematopoietic stem cell (HSC) fate decision, whether they keep quiescence, self-renew, or differentiate into blood lineage cells, is critical for maintaining the immune system throughout one’s lifetime. As HSCs are exposed to age-related stress, they gradually lose their self-renewal and regenerative capacity. Recently, many reports have implicated signaling pathways in the regulation of HSC fate determination and malignancies under aging stress or pathophysiological conditions. In this review, we focus on the current understanding of signaling pathways that regulate HSC fate including quiescence, self-renewal, and differentiation during aging, and additionally introduce pharmacological approaches to rescue defects of HSC fate determination or hematopoietic malignancies by kinase signaling pathways.
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Affiliation(s)
- Hee Jun Cho
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.J.C.); (S.R.Y.)
| | - Jungwoon Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea;
| | - Suk Ran Yoon
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.J.C.); (S.R.Y.)
| | - Hee Gu Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.J.C.); (S.R.Y.)
- Department of Biomolecular Science, Korea University of Science and Technology (UST), 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence: (H.G.L.); (H.J.)
| | - Haiyoung Jung
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.J.C.); (S.R.Y.)
- Correspondence: (H.G.L.); (H.J.)
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Kiptiyah K, Widodo W, Ciptadi G, Aulanni'Am A, Widodo MA, Sumitro SB. 10-gingerol induces oxidative stress through HTR1A in cumulus cells: in-vitro and in-silico studies. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2020; 17:/j/jcim.ahead-of-print/jcim-2019-0042/jcim-2019-0042.xml. [PMID: 32284444 DOI: 10.1515/jcim-2019-0042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 10/24/2019] [Indexed: 01/04/2023]
Abstract
Background We investigated whether 10-gingerol is able to induce oxidative stress in cumulus cells. Methods For the in-vitro research, we used a cumulus cell culture in M199, containing 10-gingerol in various concentrations (0, 12, 16, and 20 µM), and detected oxidative stress through superoxide dismutase (SOD) activity and malondialdehyde (MDA) concentrations, with incubation periods of 24, 48, 72, and 96 h. The obtained results were confirmed by in-silico studies. Results The in-vitro data revealed that SOD activity and MDA concentration increased with increasing incubation periods: SOD activity at 0 µM (1.39 ± 0.24i), 12 µM (16.42 ± 0.35ab), 16 µM (17.28 ± 0.55ab), 20 µM (17.81 ± 0.12a), with a contribution of 71.1%. MDA concentration at 0 µM (17.82 ± 1.39 l), 12 µM (72.99 ± 0.31c), 16 µM (79.77 ± 4.19b), 20 µM (85.07 ± 2.57a), with a contribution of 73.1%. Based on this, the in-silico data uncovered that 10-gingerol induces oxidative stress in cumulus cells by inhibiting HTR1A functions and inactivating GSK3B and AKT-1. Conclusions 10-gingerol induces oxidative stress in cumulus cells through enhancing SOD activity and MDA concentration by inhibiting HTR1A functions and inactivating GSK3B and AKT-1.
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Affiliation(s)
- Kiptiyah Kiptiyah
- Department of Biology, Maulana Malik Ibrahim Islamic State University of Malang, Malang 65144, Indonesia
| | - Widodo Widodo
- Department of Biology, Brawijaya University of Malang, Malang, Indonesia
| | - Gatot Ciptadi
- Husbandry Faculty, Brawijaya University of Malang, Malang, Indonesia
| | | | - Mohammad A Widodo
- Biomedical Study Programme, Brawijaya University of Malang, Malang, Indonesia
| | - Sutiman B Sumitro
- Department of Biology, Brawijaya University of Malang, Malang, Indonesia
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