1
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Augustin HG, Koh GY. A systems view of the vascular endothelium in health and disease. Cell 2024; 187:4833-4858. [PMID: 39241746 DOI: 10.1016/j.cell.2024.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 06/26/2024] [Accepted: 07/05/2024] [Indexed: 09/09/2024]
Abstract
The dysfunction of blood-vessel-lining endothelial cells is a major cause of mortality. Although endothelial cells, being present in all organs as a single-cell layer, are often conceived as a rather inert cell population, the vascular endothelium as a whole should be considered a highly dynamic and interactive systemically disseminated organ. We present here a holistic view of the field of vascular research and review the diverse functions of blood-vessel-lining endothelial cells during the life cycle of the vasculature, namely responsive and relaying functions of the vascular endothelium and the responsive roles as instructive gatekeepers of organ function. Emerging translational perspectives in regenerative medicine, preventive medicine, and aging research are developed. Collectively, this review is aimed at promoting disciplinary coherence in the field of angioscience for a broader appreciation of the importance of the vasculature for organ function, systemic health, and healthy aging.
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Affiliation(s)
- Hellmut G Augustin
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; Division of Vascular Oncology and Metastasis, German Cancer Research Center Heidelberg (DKFZ), 69120 Heidelberg, Germany.
| | - Gou Young Koh
- Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea; Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
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2
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Zhang Y, Iino Y, Schafer WR. Behavioral plasticity. Genetics 2024; 228:iyae105. [PMID: 39158469 DOI: 10.1093/genetics/iyae105] [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: 02/01/2024] [Accepted: 06/10/2024] [Indexed: 08/20/2024] Open
Abstract
Behavioral plasticity allows animals to modulate their behavior based on experience and environmental conditions. Caenorhabditis elegans exhibits experience-dependent changes in its behavioral responses to various modalities of sensory cues, including odorants, salts, temperature, and mechanical stimulations. Most of these forms of behavioral plasticity, such as adaptation, habituation, associative learning, and imprinting, are shared with other animals. The C. elegans nervous system is considerably tractable for experimental studies-its function can be characterized and manipulated with molecular genetic methods, its activity can be visualized and analyzed with imaging approaches, and the connectivity of its relatively small number of neurons are well described. Therefore, C. elegans provides an opportunity to study molecular, neuronal, and circuit mechanisms underlying behavioral plasticity that are either conserved in other animals or unique to this species. These findings reveal insights into how the nervous system interacts with the environmental cues to generate behavioral changes with adaptive values.
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Affiliation(s)
- Yun Zhang
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
- Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Yuichi Iino
- Department of Biological Sciences, University of Tokyo, Tokyo 113-0032, Japan
| | - William R Schafer
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge, Cambridgeshire CB2 0QH, UK
- Department of Biology, KU Leuven, 3000 Leuven, Belgium
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3
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Al-Rawi DH, Lettera E, Li J, DiBona M, Bakhoum SF. Targeting chromosomal instability in patients with cancer. Nat Rev Clin Oncol 2024; 21:645-659. [PMID: 38992122 DOI: 10.1038/s41571-024-00923-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2024] [Indexed: 07/13/2024]
Abstract
Chromosomal instability (CIN) is a hallmark of cancer and a driver of metastatic dissemination, therapeutic resistance, and immune evasion. CIN is present in 60-80% of human cancers and poses a formidable therapeutic challenge as evidenced by the lack of clinically approved drugs that directly target CIN. This limitation in part reflects a lack of well-defined druggable targets as well as a dearth of tractable biomarkers enabling direct assessment and quantification of CIN in patients with cancer. Over the past decade, however, our understanding of the cellular mechanisms and consequences of CIN has greatly expanded, revealing novel therapeutic strategies for the treatment of chromosomally unstable tumours as well as new methods of assessing the dynamic nature of chromosome segregation errors that define CIN. In this Review, we describe advances that have shaped our understanding of CIN from a translational perspective, highlighting both challenges and opportunities in the development of therapeutic interventions for patients with chromosomally unstable cancers.
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Affiliation(s)
- Duaa H Al-Rawi
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Emanuele Lettera
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jun Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Melody DiBona
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samuel F Bakhoum
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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4
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Kim JH, Choi MS, Auger C, Lee KW, Schini-Kerth VB. Polyphenol-rich Aronia melanocarpa juice sustains eNOS activation through phosphorylation and expression via redox-sensitive pathways in endothelial cells. Food Sci Biotechnol 2024; 33:2865-2875. [PMID: 39184991 PMCID: PMC11339019 DOI: 10.1007/s10068-024-01546-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/29/2024] [Accepted: 02/14/2024] [Indexed: 08/27/2024] Open
Abstract
A sustained formation of nitric oxide (NO) by endothelial nitric oxide synthase (eNOS) is crucial to safeguard the vascular system against the development of cardiovascular diseases. This study investigated the prolonged phosphorylation and expression of eNOS induced by polyphenol-rich Aronia melanocarpa juice (AMJ), along with its underlying mechanisms. The findings revealed that AMJ triggered concentration- and time-dependent increases in eNOS phosphorylation and expression, leading to sustained NO production for 15 h. Investigations with various enzymes and inhibitors revealed that the effect of AMJ was associated with redox sensitivity, activating the PI3-kinase/Akt, JNK, and p38 MAPK pathways. These pathways led to the inactivation of transcription factors FoxO1 and FoxO3a through phosphorylation, relieving their repression on eNOS expression. Therefore, the capability of AMJ to consistently trigger prolonged eNOS phosphorylation and expression via complex redox-sensitive pathways highlights its potential for maintaining vascular health and preventing cardiovascular diseases.
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Affiliation(s)
- Jong Hun Kim
- Department of Food Science and Biotechnology and Institute for Basic Sciences, Sungshin Women’s University, Seoul, 01133 Republic of Korea
| | - Min Sik Choi
- Lab of Pharmacology, College of Pharmacy, Dongduk Women’s University, Seoul, 02748 Republic of Korea
| | - Cyril Auger
- INSERM UMR 1260, Regenerative Nanomedicine, University of Strasbourg, Strasbourg, France
| | - Ki Won Lee
- Department of Agricultural Biotechnology, Biomodulation Major, Seoul National University, Seoul, 08826 Republic of Korea
- Bio-MAX Institute, Seoul National University, Seoul, 08826 Republic of Korea
- Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229 Republic of Korea
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5
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Wang M, Dai B, Liu Q, Zhang X. Prognostic and immunological implications of heterogeneous cell death patterns in prostate cancer. Cancer Cell Int 2024; 24:297. [PMID: 39182081 PMCID: PMC11344416 DOI: 10.1186/s12935-024-03462-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 07/28/2024] [Indexed: 08/27/2024] Open
Abstract
BACKGROUND Prostate cancer is one of the most common cancers in men with a significant proportion of patients developing biochemical recurrence (BCR) after treatment. Programmed cell death (PCD) mechanisms are known to play critical roles in tumor progression and can potentially serve as prognostic and therapeutic biomarkers in PCa. This study aimed to develop a prognostic signature for BCR in PCa using PCD-related genes. MATERIALS AND METHODS We conducted an analysis of 19 different modes of PCD to develop a comprehensive model. Bulk transcriptomic, single-cell transcriptomic, genomic, and clinical data were collected from multiple cohorts, including TCGA-PRAD, GSE58812, METABRIC, GSE21653, and GSE193337. We analyzed the expression and mutations of the 19 PCD modes and constructed, evaluated, and validated the model. RESULTS Ten PCD modes were found to be associated with BCR in PCa, with specific PCD patterns exhibited by various cell components within the tumor microenvironment. Through Lasso Cox regression analysis, we established a Programmed Cell Death Index (PCDI) utilizing an 11-gene signature. High PCDI values were validated in five independent datasets and were found to be associated with an increased risk of BCR in PCa patients. Notably, older age and advanced T and N staging were associated with higher PCDI values. By combining PCDI with T staging, we constructed a nomogram with enhanced predictive performance. Additionally, high PCDI values were significantly correlated with decreased drug sensitivity, including drugs such as Docetaxel and Methotrexate. Patients with lower PCDI values demonstrated higher immunophenoscores (IPS), suggesting a potentially higher response rate to immune therapy. Furthermore, PCDI was associated with immune checkpoint genes and key components of the tumor microenvironment, including macrophages, T cells, and NK cells. Finally, clinical specimens validated the differential expression of PCDI-related PCDRGs at both the gene and protein levels. CONCLUSION In conclusion, we developed a novel PCD-based prognostic feature that successfully predicted BCR in PCa patients and provided insights into drug sensitivity and potential response to immune therapy. These findings have significant clinical implications for the treatment of PCa.
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Affiliation(s)
- Ming Wang
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China
| | - Bangshun Dai
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China
| | - Qiushi Liu
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China
| | - Xiansheng Zhang
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China.
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Shafiek MS, Mekky RY, Nassar NN, El-Yamany MF, Rabie MA. Vortioxetine ameliorates experimental autoimmune encephalomyelitis model of multiple sclerosis in mice via activation of PI3K/Akt/CREB/BDNF cascade and modulation of serotonergic pathway signaling. Eur J Pharmacol 2024; 982:176929. [PMID: 39181226 DOI: 10.1016/j.ejphar.2024.176929] [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: 05/22/2024] [Revised: 08/01/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Multiple sclerosis (MS) is a chronic condition characterized by immune cell infiltration and cytokine overproduction that led to myelin sheath inflammatory assaults, thus causing axonal destruction. The former consequently provokes motor impairment and psychological disorders. Markedly, depression is one of the most prevalent lifelong comorbidities that negatively impacts the quality of life in MS patients. Vortioxetine (VTX), a multi-modal molecule prescribed to manage depression and anxiety disorder, additionally, it displays a promising neuroprotective properties against neurodegenerative diseases such as Alzheimer's and Parkinson's. To this end, the present study investigated the potential therapeutic efficacy of VTX against experimental autoimmune encephalomyelitis (EAE) model of MS in mice. Notably, treatment with VTX significantly ameliorated EAE-induced motor disability, as evident by enhanced performance in open field, rotarod and grip strength tests, alongside a reduction in immobility time during the forced swimming test, indicating a mitigation of the depressive-like behavior; outcomes that were corroborated with histological examinations and biochemical analyses. Mechanistically, VTX enhanced serotonin levels by inhibiting both serotonin transporter (SERT) and indoleamine 2,3-dioxygenase (IDO) enzyme, thereby promoting the activation of serotonin 1A (5-HT1A) receptor. The latter triggered the stimulation of phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) cascade that entailed activation/phosphorylation of cAMP response element-binding protein (CREB). This activation increased brain derived neurotrophic factor (BDNF) and myelin basic protein (MBP) contents that mitigated demyelination in the corpus callosum. Furthermore, VTX suppressed phospho serine 536 nuclear factor kappa B (pS536 NF-κB p65) activity and reduced tumor necrosis factor-alpha (TNF-α) production. The results underscore VTX's beneficial effects on disease severity in EAE model of MS in mice by amending both inflammatory and neurodegenerative components of MS progression.
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Affiliation(s)
- Marwa S Shafiek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Drug Technology, Egyptian Chinese University, Cairo, Egypt
| | - Radwa Y Mekky
- Department of Pharmacology and Toxicology, October University for Modern Science and Arts (MSA), Giza, 12622, Egypt
| | - Noha N Nassar
- Department of Pharmacology and Toxicology, October University for Modern Science and Arts (MSA), Giza, 12622, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, 11562, Cairo, Egypt
| | - Mohammed F El-Yamany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, 11562, Cairo, Egypt
| | - Mostafa A Rabie
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, 11562, Cairo, Egypt.
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7
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Cao J, Tao C, Qin X, Wu K, Yang H, Liu C, Cheng T. PI3K-Akt-SGF1-Dimm pathway mediates the nutritional regulation of silk protein synthesis in Bombyx mori. Int J Biol Macromol 2024; 278:134650. [PMID: 39128739 DOI: 10.1016/j.ijbiomac.2024.134650] [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: 05/30/2024] [Revised: 08/04/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024]
Abstract
The efficient synthesis of silk protein is heavily reliant on the ingestion of massive nutrients during the peak growth phase in the silkworm. However, the molecular mechanism of nutritional regulation of silk protein synthesis remains unknown. In this study, we investigated the impact of nutrient deficiency on the synthesis of silk protein. Nutritional deficiency led to a reduction in silk yield, accompanied by decreased levels of silk proteins and fibroin heavy chain (FibH)-activating transcription factors SGF1 and Dimm. Furthermore, insulin enhanced the protein levels of SGF1 and Dimm, which can be attenuated by specific inhibitors of PI3K. Co-immunoprecipitation analysis showed that the nutrient pathway factor protein kinase B (Akt) could interact with SGF1 protein. Knockdown of Akt reduced the phosphorylation level of SGF1 and impedes its nuclear translocation. Further studies revealed that SGF1 was directly bound to Fkh site in the 22-43 region upstream of ATG of Dimm gene to activate its transcription. In conclusion, during the peak growth phase, nutrition promotes the massive synthesis of silk protein through the PI3K-Akt-SGF1-Dimm pathway. This study offers valuable insights into the efficient synthesis of silk proteins and establishes a theoretical foundation for improving silk yield.
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Affiliation(s)
- Jun Cao
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China
| | - Cuicui Tao
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China
| | - Xiaodan Qin
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China
| | - Keli Wu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China
| | - Hongguo Yang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China
| | - Chun Liu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China.
| | - Tingcai Cheng
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400716, China.
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Lyu Y, Meng Z, Hu Y, Jiang B, Yang J, Chen Y, Zhou J, Li M, Wang H. Mechanisms of mitophagy and oxidative stress in cerebral ischemia-reperfusion, vascular dementia, and Alzheimer's disease. Front Mol Neurosci 2024; 17:1394932. [PMID: 39169952 PMCID: PMC11335644 DOI: 10.3389/fnmol.2024.1394932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 07/23/2024] [Indexed: 08/23/2024] Open
Abstract
Neurological diseases have consistently represented a significant challenge in both clinical treatment and scientific research. As research has progressed, the significance of mitochondria in the pathogenesis and progression of neurological diseases has become increasingly prominent. Mitochondria serve not only as a source of energy, but also as regulators of cellular growth and death. Both oxidative stress and mitophagy are intimately associated with mitochondria, and there is mounting evidence that mitophagy and oxidative stress exert a pivotal regulatory influence on the pathogenesis of neurological diseases. In recent years, there has been a notable rise in the prevalence of cerebral ischemia/reperfusion injury (CI/RI), vascular dementia (VaD), and Alzheimer's disease (AD), which collectively represent a significant public health concern. Reduced levels of mitophagy have been observed in CI/RI, VaD and AD. The improvement of associated pathology has been demonstrated through the increase of mitophagy levels. CI/RI results in cerebral tissue ischemia and hypoxia, which causes oxidative stress, disruption of the blood-brain barrier (BBB) and damage to the cerebral vasculature. The BBB disruption and cerebral vascular injury may induce or exacerbate VaD to some extent. In addition, inadequate cerebral perfusion due to vascular injury or altered function may exacerbate the accumulation of amyloid β (Aβ) thereby contributing to or exacerbating AD pathology. Intravenous tissue plasminogen activator (tPA; alteplase) and endovascular thrombectomy are effective treatments for stroke. However, there is a narrow window of opportunity for the administration of tPA and thrombectomy, which results in a markedly elevated incidence of disability among patients with CI/RI. It is regrettable that there are currently no there are still no specific drugs for VaD and AD. Despite the availability of the U.S. Food and Drug Administration (FDA)-approved clinical first-line drugs for AD, including memantine, donepezil hydrochloride, and galantamine, these agents do not fundamentally block the pathological process of AD. In this paper, we undertake a review of the mechanisms of mitophagy and oxidative stress in neurological disorders, a summary of the clinical trials conducted in recent years, and a proposal for a new strategy for targeted treatment of neurological disorders based on both mitophagy and oxidative stress.
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Affiliation(s)
- Yujie Lyu
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Zhipeng Meng
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Yunyun Hu
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Bing Jiang
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Jiao Yang
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Yiqin Chen
- Gansu University of Chinese Medicine, Lanzhou, China
| | - Jun Zhou
- Xichang Hospital of Traditional Chinese Medicine, Xichang, China
| | - Mingcheng Li
- Qujing 69 Hospital, China RongTong Medical Healthcare Group Co. Ltd, Qujing, China
| | - Huping Wang
- Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory of Traditional Chinese Herbs and Prescription Innovation and Transformation of Gansu Province, Lanzhou, China
- Laboratory for TCM New Products Development Engineering of Gansu Province, Lanzhou, China
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Lee DH, Lee HJ, Yang G, Kim DY, Kim JU, Yook TH, Lee JH, Kim HJ. A novel treatment strategy targeting cellular pathways with natural products to alleviate sarcopenia. Phytother Res 2024. [PMID: 39099170 DOI: 10.1002/ptr.8301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 07/08/2024] [Accepted: 07/12/2024] [Indexed: 08/06/2024]
Abstract
Sarcopenia is a condition marked by a significant reduction in muscle mass and strength, primarily due to the aging process, which critically impacts muscle protein dynamics, metabolic functions, and overall physical functionality. This condition leads to increased body fat and reduced daily activity, contributing to severe health issues and a lower quality of life among the elderly. Recognized in the ICD-10-CM only in 2016, sarcopenia lacks definitive treatment options despite its growing prevalence and substantial social and economic implications. Given the aging global population, addressing sarcopenia has become increasingly relevant and necessary. The primary causes include aging, cachexia, diabetes, and nutritional deficiencies, leading to imbalances in protein synthesis and degradation, mitochondrial dysfunction, and hormonal changes. Exercise remains the most effective intervention, but it is often impractical for individuals with limited mobility, and pharmacological options such as anabolic steroids and myostatin inhibitors are not FDA-approved and are still under investigation. This review is crucial as it examines the potential of natural products as a novel treatment strategy for sarcopenia, targeting multiple mechanisms involved in its pathogenesis. By exploring natural products' multi-targeted effects, this study aims to provide innovative and practical solutions for sarcopenia management. Therefore, this review indicates significant improvements in muscle mass and function with the use of specific natural compounds, suggesting promising alternatives for those unable to engage in regular physical activity.
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Affiliation(s)
- Da Hee Lee
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Hye Jin Lee
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Gabsik Yang
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Dae Yong Kim
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Jong Uk Kim
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Tae Han Yook
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Jun Ho Lee
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
- Da Capo Co., Ltd., Jeonju-si, Republic of Korea
| | - Hong Jun Kim
- College of Korean Medicine, Woosuk University, Jeonju-si, Republic of Korea
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Cai X, Cao J, Wang L, Zou J, Li R, Sun P, Ding X, Zhang B, Liu Z, Pei X, Yang J, Zhan Y, Liu N, Liu T, Liang R, Gao J, Wang S. Liraglutide Protects Pancreatic Islet From Ischemic Injury by Reducing Oxidative Stress and Activating Akt Signaling During Cold Preservation to Improve Islet Transplantation Outcomes. Transplantation 2024; 108:e156-e169. [PMID: 38578708 DOI: 10.1097/tp.0000000000004949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
BACKGROUND Islet transplantation is a promising therapy for patients with type 1 diabetes. However, ischemic injury to the donor islets during cold preservation leads to reduced islet quality and compromises transplant outcome. Several studies imply that liraglutide, a glucagon-like peptide-1 receptor agonist, has a positive effect on promoting islet survival, but its impact on islet cold-ischemic injury remains unexplored. Therefore, the aim of this study was to investigate whether liraglutide can improve islet transplantation efficacy by inhibiting cold-ischemic injury and to explore the underlying mechanisms. METHODS Liraglutide was applied in a mouse pancreas preservation model and a human islets cold-preservation model, and islet viability, function, oxidative stress levels were evaluated. Furthermore, islet transplantation was performed in a syngeneic mouse model and a human-to-nude mouse islet xenotransplantation model. RESULTS The supplementation of liraglutide in preservation solution improved islet viability, function, and reduced cell apoptosis. Liraglutide inhibited the oxidative stress of cold-preserved pancreas or islets through upregulating the antioxidant enzyme glutathione levels, inhibiting reactive oxygen species accumulation, and maintaining the mitochondrial membrane integrity, which is associated with the activation of Akt signaling. Furthermore, the addition of liraglutide during cold preservation of donor pancreas or donor islets significantly improved the subsequent transplant outcomes in both syngeneic mouse islet transplantation model and human-to-nude mouse islet xenotransplantation model. CONCLUSIONS Liraglutide protects islets from cold ischemia-related oxidative stress during preservation and hence improved islet transplantation outcomes, and this protective effect of liraglutide in islets is associated with the activation of Akt signaling.
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Affiliation(s)
- Xiangheng Cai
- School of Medicine, Nankai University, Tianjin, China
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Jinglin Cao
- Department of Hepatobiliary Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Le Wang
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Jiaqi Zou
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Rui Li
- Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Peng Sun
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Xuejie Ding
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Boya Zhang
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Zewen Liu
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Xirui Pei
- First Clinical Department, The First Hospital of China Medical University, China Medical University, Shenyang, China
| | - Jiuxia Yang
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Yixiang Zhan
- School of Medicine, Nankai University, Tianjin, China
| | - Na Liu
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Tengli Liu
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Rui Liang
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Jie Gao
- State Key Laboratory of Medicinal Chemical Biology and College of Life Sciences, Nankai University, Tianjin, China
| | - Shusen Wang
- School of Medicine, Nankai University, Tianjin, China
- Research Institute of Transplant Medicine, Organ Transplant Center, NHC Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
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11
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Yang L, Liu D, Jiang S, Li H, Chen L, Wu Y, Essien AE, Opoku M, Naranmandakh S, Liu S, Ru Q, Li Y. SIRT1 signaling pathways in sarcopenia: Novel mechanisms and potential therapeutic targets. Biomed Pharmacother 2024; 177:116917. [PMID: 38908209 DOI: 10.1016/j.biopha.2024.116917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/29/2024] [Accepted: 06/09/2024] [Indexed: 06/24/2024] Open
Abstract
Sarcopenia is an aging-related skeletal disease characterized by decreased muscle mass, strength, and physical function, severely affecting the quality of life (QoL) of the elderly population. Sirtuin 1 (SIRT1), as a nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylases, has been reported to participate in various aging-related signaling pathways and exert protective effect on many human diseases. SIRT1 functioned as an important role in the occurrence and progression of sarcopenia through regulating key pathways related to protein homeostasis, apoptosis, mitochondrial dysfunction, insulin resistance and autophagy in skeletal muscle, including SIRT1/Forkhead Box O (FoxO), AMP-activated protein kinase (AMPK)/SIRT1/nuclear factor κB (NF-κB), SIRT1/p53, AMPK/SIRT1/peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α), and SIRT1/live kinase B1 (LKB1)/AMPK pathways. However, the specific mechanisms of these processes have not been fully illuminated. Currently, several SIRT1-mediated interventions on sarcopenia have been preliminarily developed, such as SIRT1 activator polyphenolic compounds, exercising and calorie restriction. In this review, we summarized the predominant mechanisms of SIRT1 involved in sarcopenia and therapeutic modalities targeting the SIRT1 signaling pathways for the prevention and prognosis of sarcopenia.
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Affiliation(s)
- Luning Yang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Di Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shide Jiang
- Department of Orthopedics, The Central Hospital of Yongzhou, Yongzhou 425000, China
| | - Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Lin Chen
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Yuxiang Wu
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China
| | - Anko Elijah Essien
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Michael Opoku
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shinen Naranmandakh
- Department of chemistry, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 14201, Mongolia
| | - ShuGuang Liu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Qin Ru
- Department of Health and Physical Education, Jianghan University, Wuhan 430056, China.
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
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12
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Rudnitsky E, Braiman A, Wolfson M, Muradian KK, Gorbunova V, Turgeman G, Fraifeld VE. Stem cell-derived extracellular vesicles as senotherapeutics. Ageing Res Rev 2024; 99:102391. [PMID: 38914266 DOI: 10.1016/j.arr.2024.102391] [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: 05/19/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 06/26/2024]
Abstract
Cellular senescence (CS) is recognized as one of the hallmarks of aging, and an important player in a variety of age-related pathologies. Accumulation of senescent cells can promote a pro-inflammatory and pro-cancerogenic microenvironment. Among potential senotherapeutics are extracellular vesicles (EVs) (40-1000 nm), including exosomes (40-150 nm), that play an important role in cell-cell communications. Here, we review the most recent studies on the impact of EVs derived from stem cells (MSCs, ESCs, iPSCs) as well as non-stem cells of various types on CS and discuss potential mechanisms responsible for the senotherapeutic effects of EVs. The analysis revealed that (i) EVs derived from stem cells, pluripotent (ESCs, iPSCs) or multipotent (MSCs of various origin), can mitigate the cellular senescence phenotype both in vitro and in vivo; (ii) this effect is presumably senomorphic; (iii) EVs display cross-species activity, without apparent immunogenic responses. In summary, stem cell-derived EVs appear to be promising senotherapeutics, with a feasible application in humans.
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Affiliation(s)
- Ekaterina Rudnitsky
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Alex Braiman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Marina Wolfson
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Khachik K Muradian
- Department of Biology of Aging and Experimental Life Span Extension, State Institute of Gerontology of National Academy of Medical Sciences of Ukraine, Kiev 4114, Ukraine
| | - Vera Gorbunova
- Department of Biology, Rochester Aging Research Center, University of Rochester, Rochester, NY 14627, USA
| | - Gadi Turgeman
- Department of Molecular Biology, Faculty of Natural Sciences and Medical School, Ariel University, Ariel 40700, Israel.
| | - Vadim E Fraifeld
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
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13
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Lazovic B, Nguyen HT, Ansarizadeh M, Wigge L, Kohl F, Li S, Carracedo M, Kettunen J, Krimpenfort L, Elgendy R, Richter K, De Silva L, Bilican B, Singh P, Saxena P, Jakobsson L, Hong X, Eklund L, Hicks R. Human iPSC and CRISPR targeted gene knock-in strategy for studying the somatic TIE2 L914F mutation in endothelial cells. Angiogenesis 2024; 27:523-542. [PMID: 38771392 PMCID: PMC11303492 DOI: 10.1007/s10456-024-09925-9] [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: 12/01/2023] [Accepted: 04/22/2024] [Indexed: 05/22/2024]
Abstract
Induced pluripotent stem cell (iPSC) derived endothelial cells (iECs) have emerged as a promising tool for studying vascular biology and providing a platform for modelling various vascular diseases, including those with genetic origins. Currently, primary ECs are the main source for disease modelling in this field. However, they are difficult to edit and have a limited lifespan. To study the effects of targeted mutations on an endogenous level, we generated and characterized an iPSC derived model for venous malformations (VMs). CRISPR-Cas9 technology was used to generate a novel human iPSC line with an amino acid substitution L914F in the TIE2 receptor, known to cause VMs. This enabled us to study the differential effects of VM causative mutations in iECs in multiple in vitro models and assess their ability to form vessels in vivo. The analysis of TIE2 expression levels in TIE2L914F iECs showed a significantly lower expression of TIE2 on mRNA and protein level, which has not been observed before due to a lack of models with endogenous edited TIE2L914F and sparse patient data. Interestingly, the TIE2 pathway was still significantly upregulated and TIE2 showed high levels of phosphorylation. TIE2L914F iECs exhibited dysregulated angiogenesis markers and upregulated migration capability, while proliferation was not affected. Under shear stress TIE2L914F iECs showed reduced alignment in the flow direction and a larger cell area than TIE2WT iECs. In summary, we developed a novel TIE2L914F iPSC-derived iEC model and characterized it in multiple in vitro models. The model can be used in future work for drug screening for novel treatments for VMs.
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Affiliation(s)
- Bojana Lazovic
- BioPharmaceuticals R&D Cell Therapy Department, Research and Early Development, Cardiovascular, Renal, and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- Translational Genomics, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Hoang-Tuan Nguyen
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
- Finnadvance Ltd., Oulu, Finland
| | - Mohammadhassan Ansarizadeh
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Leif Wigge
- Data Sciences and Quantitative Biology, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Franziska Kohl
- Translational Genomics, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Songyuan Li
- Translational Genomics, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Miguel Carracedo
- Bioscience Renal, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | | | - Luc Krimpenfort
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ramy Elgendy
- Translational Genomics, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Kati Richter
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Laknee De Silva
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Bilada Bilican
- Translational Genomics, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | | | - Pratik Saxena
- BioPharmaceuticals R&D Cell Therapy Department, Research and Early Development, Cardiovascular, Renal, and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lars Jakobsson
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Xuechong Hong
- BioPharmaceuticals R&D Cell Therapy Department, Research and Early Development, Cardiovascular, Renal, and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lauri Eklund
- Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Ryan Hicks
- BioPharmaceuticals R&D Cell Therapy Department, Research and Early Development, Cardiovascular, Renal, and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.
- School of Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, UK.
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14
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Guo N, Wang X, Xu M, Bai J, Yu H, Le Zhang. PI3K/AKT signaling pathway: Molecular mechanisms and therapeutic potential in depression. Pharmacol Res 2024; 206:107300. [PMID: 38992850 DOI: 10.1016/j.phrs.2024.107300] [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: 05/13/2024] [Revised: 07/03/2024] [Accepted: 07/05/2024] [Indexed: 07/13/2024]
Abstract
Depression is a serious global mental disorder. Numerous studies have found that depression may be closely related to decreased neurogenesis, neuroinflammation, neurotransmitter imbalance, and synaptic plasticity dysfunction. The pathogenesis of depression is complex and involves multiple signal transduction pathways and molecular changes. The PI3K/AKT pathway is an essential signaling pathways in neurons, which is widely expressed in emotion-related regions of the brain. Therefore, the PI3K/AKT pathway may play a moderating role in mood disorders. However, the role and mechanism of the PI3K/AKT signaling pathway in depression have not been fully described. This review systematically summarized the role of the PI3K/AKT signaling pathway in the pathogenesis of depression and discussed its potential in the treatment of depression. This will help in the treatment of depression and the development of antidepressants.
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Affiliation(s)
- Ningning Guo
- School of Mental Health, Jining Medical University, Jining, China
| | - Xin Wang
- Department of Radiation Therapy, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Muran Xu
- Clinical College, Jining Medical University, Jining, China
| | - Jie Bai
- Medical School, Kunming University of Science and Technology, Kunming, China.
| | - Hao Yu
- School of Mental Health, Jining Medical University, Jining, China.
| | - Le Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
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15
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Hu Y, Yi L, Yang Y, Wu Z, Kong M, Kang Z, Yang Z. Acetylation of FOXO1 activates Bim expression involved in CVB3 induced cardiomyocyte apoptosis. Apoptosis 2024; 29:1271-1287. [PMID: 38127284 PMCID: PMC11263423 DOI: 10.1007/s10495-023-01924-3] [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] [Accepted: 11/25/2023] [Indexed: 12/23/2023]
Abstract
Viral myocarditis (VMC) is the major reason for sudden cardiac death among both children and young adults. Of these, coxsackievirus B3 (CVB3) is the most common causative agent of myocarditis. Recently, the role of signaling pathways in the pathogenesis of VMC has been evaluated in several studies, which has provided a new perspective on identifying potential therapeutic targets for this hitherto incurable disease. In the present study, in vivo and in vitro experiments showed that CVB3 infection leads to increased Bim expression and triggers apoptosis. In addition, by knocking down Bim using RNAi, we further confirmed the biological function of Bim in apoptosis induced by CVB3 infection. We additionally found that Bim and forkhead box O1 class (FOXO1) inhibition significantly increased the viability of CVB3-infected cells while blocking viral replication and viral release. Moreover, CVB3-induced Bim expression was directly dependent on FOXO1 acetylation, which is catalyzed by the co-regulation of CBP and SirTs. Furthermore, the acetylation of FOXO1 was an important step in Bim activation and apoptosis induced by CVB3 infection. The findings of this study suggest that CVB3 infection induces apoptosis through the FOXO1 acetylation-Bim pathway, thus providing new insights for developing potential therapeutic targets for enteroviral myocarditis.
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Affiliation(s)
- Yanan Hu
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Lu Yi
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Yeyi Yang
- Department of Medicine, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Zhixiang Wu
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Min Kong
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Zhijuan Kang
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Zuocheng Yang
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, People's Republic of China.
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16
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Hao XD, Liu JX, Zhang JS. Longevity factor FOXO3a: A potential therapeutic target for age-related ocular diseases. Life Sci 2024; 350:122769. [PMID: 38848943 DOI: 10.1016/j.lfs.2024.122769] [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: 02/28/2024] [Revised: 05/22/2024] [Accepted: 06/02/2024] [Indexed: 06/09/2024]
Abstract
The forkhead box protein O3 (FOXO3a) belongs to the subgroup O of the forkhead transcription factor family and plays an important role in regulating the aging process by participating in the regulation of various life processes, including cell cycle arrest, apoptosis, autophagy, oxidative stress, and DNA repair. The eye is an organ that is affected by aging earlier. However, the functional role and potential clinical applications of FOXO3a in age-related eye diseases have not received widespread attention and lacked comprehensive and clear clarification. In this review, we demonstrated the relationship between FOXO3a and visual system health, summarized the functional roles of FOXO3a in various eye diseases, and potential ocular-related therapies and drugs targeting FOXO3a in visual system diseases through a review and summary of relevant literature. This review indicates that FOXO3a is an important factor in maintaining the normal function of various tissues in the eye, and is closely related to the occurrence and development of ophthalmic-related diseases. Based on its vital role in the normal function of the visual system, FOXO3a has potential clinical application value in related ophthalmic diseases. At present, multiple molecules and drugs targeting FOXO3a have been reported to have the potential for the treatment of related ophthalmic diseases, but further clinical trials are needed. In conclusion, this review can facilitate us to grasp the role of FOXO3a in the visual system and provide new views and bases for the treatment strategy research of age-related eye diseases.
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Affiliation(s)
- Xiao-Dan Hao
- Institute for Translational Medicine, the Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China.
| | - Jin-Xiu Liu
- Institute for Translational Medicine, the Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Jing-Sai Zhang
- Institute for Translational Medicine, the Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
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17
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Lei Z, Pan C, Li F, Wei D, Ma Y. SGK1 promotes the lipid accumulation via regulating the transcriptional activity of FOXO1 in bovine. BMC Genomics 2024; 25:737. [PMID: 39080526 PMCID: PMC11290151 DOI: 10.1186/s12864-024-10644-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 07/22/2024] [Indexed: 08/02/2024] Open
Abstract
OBJECTIVES Serum/glucocorticoid-inducible kinase 1 (SGK1) gene encodes a serine/threonine protein kinase that plays an essential role in cellular stress response and regulation of multiple metabolic processes. However, its role in bovine adipogenesis remains unknown. In this study, we aimed to clarify the role of SGK1 in bovine lipid accumulation and improvement of meat quality. METHODS Preadipocytes were induced to differentiation to detect the temporal expression pattern of SGK1. Heart, liver, lung, spleen, kidney, muscle and fat tissues were collected to detect its tissue expression profile. Recombinant adenovirus and the lentivirus were packaged for overexpression and knockdown. Oil Red O staining, quantitative real-time PCR, Western blot analysis, Yeast two-hybrid assay, luciferase assay and RNA-seq were performed to study the regulatory mechanism of SGK1. RESULTS SGK1 showed significantly higher expression in adipose and significantly induced expression in differentiated adipocytes. Furthermore, overexpression of SGK1 greatly promoted adipogenesis and inhibited proliferation, which could be shown by the remarkable increasement of lipid droplet, and the expression levels of adipogenic marker genes and cell cycle-related genes. Inversely, its knockdown inhibited adipogenesis and facilitated proliferation. Mechanistically, SGK1 regulates the phosphorylation and expression of two critical proteins of FoxO family, FOXO1/FOXO3. Importantly, SGK1 attenuates the transcriptional repression role of FOXO1 for PPARγ via phosphorylating the site S256, then promoting the bovine fat deposition. CONCLUSIONS SGK1 is a required epigenetic regulatory factor for bovine preadipocyte proliferation and differentiation, which contributes to a better understanding of fat deposition and meat quality improvement in cattle.
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Affiliation(s)
- Zhaoxiong Lei
- College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China
| | - Cuili Pan
- College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China
| | - Fen Li
- College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China
| | - Dawei Wei
- College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China.
| | - Yun Ma
- College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China.
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18
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Sakurai-Yageta M, Suzuki Y. Molecular Mechanisms of Biotin in Modulating Inflammatory Diseases. Nutrients 2024; 16:2444. [PMID: 39125325 PMCID: PMC11314543 DOI: 10.3390/nu16152444] [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: 06/21/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Biotin, also known as vitamin B7 or vitamin H, is a water-soluble B-complex vitamin and serves as an essential co-enzyme for five specific carboxylases. Holocarboxylase synthase (HCS) activates biotin and facilitates its covalent attachment to these enzymes, while biotinidase releases free biotin in the biotin cycle. The transport of biotin, primarily from the intestine, is mediated by the sodium-dependent multi-vitamin transporter (SMVT). Severe biotin deficiency leads to multiple carboxylase deficiency. Moreover, biotin is crucial to glucose and lipid utilization in cellular energy production because it modulates the expression of metabolic enzymes via various signaling pathways and transcription factors. Biotin also modulates the production of proinflammatory cytokines in the immune system through similar molecular mechanisms. These regulatory roles in metabolic and immune homeostasis connect biotin to conditions such as diabetes, dermatologic manifestations, and multiple sclerosis. Furthermore, deficiencies in biotin and SMVT are implicated in inflammatory bowel disease, affecting intestinal inflammation, permeability, and flora. Notably, HCS and probably biotin directly influence gene expression through histone modification. In this review, we summarize the current knowledge on the molecular aspects of biotin and associated molecules in diseases related to both acute inflammatory responses and chronic inflammation, and discuss the potential therapeutic applications of biotin.
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Affiliation(s)
- Mika Sakurai-Yageta
- Department of Education and Training, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Miyagi, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai 980-8573, Miyagi, Japan
| | - Yoichi Suzuki
- Department of Education and Training, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Miyagi, Japan
- Department of Clinical Genetics, Ageo Central General Hospital, Ageo 362-8588, Saitama, Japan
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19
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Maejima Y, Nah J, Aryan Z, Zhai P, Sung EA, Liu T, Takayama K, Moghadami S, Sasano T, Li H, Sadoshima J. Mst1-mediated phosphorylation of FoxO1 and C/EBP-β stimulates cell-protective mechanisms in cardiomyocytes. Nat Commun 2024; 15:6279. [PMID: 39060225 PMCID: PMC11282193 DOI: 10.1038/s41467-024-50393-y] [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: 10/07/2022] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
The molecular mechanisms by which FoxO transcription factors mediate diametrically opposite cellular responses, namely death and survival, remain unknown. Here we show that Mst1 phosphorylates FoxO1 Ser209/Ser215/Ser218/Thr228/Ser232/Ser243, thereby inhibiting FoxO1-mediated transcription of proapoptotic genes. On the other hand, Mst1 increases FoxO1-C/EBP-β interaction and activates C/EBP-β by phosphorylating it at Thr299, thereby promoting transcription of prosurvival genes. Myocardial ischemia/reperfusion injury is larger in cardiac-specific FoxO1 knockout mice than in control mice. However, the concurrent presence of a C/EBP-β T299E phospho-mimetic mutation reduces infarct size in cardiac-specific FoxO1 knockout mice. The C/EBP-β phospho-mimetic mutant exhibits greater binding to the promoter of prosurvival genes than wild type C/EBP-β. In conclusion, phosphorylation of FoxO1 by Mst1 inhibits binding of FoxO1 to pro-apoptotic gene promoters but enhances its binding to C/EBP-β, phosphorylation of C/EBP-β, and transcription of prosurvival genes, which stimulate protective mechanisms in the heart.
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Grants
- 67724 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 102738 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 138720 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 144626 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 150881 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 15CVD04 Fondation Leducq
- 35120374 American Hospital Association (AHA)
- U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
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Affiliation(s)
- Yasuhiro Maejima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Jihoon Nah
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Biochemistry, Chungbuk National University, Cheongju, Korea
| | - Zahra Aryan
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Peiyong Zhai
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Eun-Ah Sung
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Tong Liu
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Koichiro Takayama
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Siavash Moghadami
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hong Li
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.
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20
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Colino-Lage H, Guerrero-Gómez D, Gómez-Orte E, González X, Martina JA, Dansen TB, Ayuso C, Askjaer P, Puertollano R, Irazoqui JE, Cabello J, Miranda-Vizuete A. Regulation of Caenorhabditis elegans HLH-30 subcellular localization dynamics: Evidence for a redox-dependent mechanism. Free Radic Biol Med 2024; 223:369-383. [PMID: 39059513 DOI: 10.1016/j.freeradbiomed.2024.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Basic Helix-Loop-Helix (bHLH) transcription factors TFEB/TFE3 and HLH-30 are key regulators of autophagy induction and lysosomal biogenesis in mammals and C. elegans, respectively. While much is known about the regulation of TFEB/TFE3, how HLH-30 subcellular dynamics and transactivation are modulated are yet poorly understood. Thus, elucidating the regulation of C. elegans HLH-30 will provide evolutionary insight into the mechanisms governing the function of bHLH transcription factor family. We report here that HLH-30 is retained in the cytoplasm mainly through its conserved Ser201 residue and that HLH-30 physically interacts with the 14-3-3 protein FTT-2 in this location. The FoxO transcription factor DAF-16 is not required for HLH-30 nuclear translocation upon stress, despite that both proteins partner to form a complex that coordinately regulates several organismal responses. Similar as described for DAF-16, the importin IMB-2 assists HLH-30 nuclear translocation, but constitutive HLH-30 nuclear localization is not sufficient to trigger its distinctive transcriptional response. Furthermore, we identify FTT-2 as the target of diethyl maleate (DEM), a GSH depletor that causes a transient nuclear translocation of HLH-30. Together, our work demonstrates that the regulation of TFEB/TFE3 and HLH-30 family members is evolutionarily conserved and that, in addition to a direct redox regulation through its conserved single cysteine residue, HLH-30 can also be indirectly regulated by a redox-dependent mechanism, probably through FTT-2 oxidation.
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Affiliation(s)
- Hildegard Colino-Lage
- Redox Homeostasis Group, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - David Guerrero-Gómez
- Redox Homeostasis Group, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Eva Gómez-Orte
- Centro de Investigación Biomédica de la Rioja (CIBIR), Logroño, La Rioja, Spain
| | - Xavier González
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
| | - José A Martina
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Tobias B Dansen
- Center for Molecular Medicine, University Medical Center Utrecht, CG Utrecht, the Netherlands
| | - Cristina Ayuso
- Andalusian Centre for Developmental Biology, Consejo Superior de Investigaciones Científicas (CSIC), Universidad Pablo de Olavide, Junta de Andalucía, Seville, Spain
| | - Peter Askjaer
- Andalusian Centre for Developmental Biology, Consejo Superior de Investigaciones Científicas (CSIC), Universidad Pablo de Olavide, Junta de Andalucía, Seville, Spain
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Javier E Irazoqui
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, USA
| | - Juan Cabello
- Centro de Investigación Biomédica de la Rioja (CIBIR), Logroño, La Rioja, Spain.
| | - Antonio Miranda-Vizuete
- Redox Homeostasis Group, Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain.
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21
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Zhao X, Ma D, Yang B, Wang Y, Zhang L. Research progress of T cell autophagy in autoimmune diseases. Front Immunol 2024; 15:1425443. [PMID: 39104538 PMCID: PMC11298352 DOI: 10.3389/fimmu.2024.1425443] [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: 04/30/2024] [Accepted: 07/03/2024] [Indexed: 08/07/2024] Open
Abstract
T cells, as a major lymphocyte population involved in the adaptive immune response, play an important immunomodulatory role in the early stages of autoimmune diseases. Autophagy is a cellular catabolism mediated by lysosomes. Autophagy maintains cell homeostasis by recycling degraded cytoplasmic components and damaged organelles. Autophagy has a protective effect on cells and plays an important role in regulating T cell development, activation, proliferation and differentiation. Autophagy mediates the participation of T cells in the acquired immune response and plays a key role in antigen processing as well as in the maintenance of T cell homeostasis. In autoimmune diseases, dysregulated autophagy of T cells largely influences the pathological changes. Therefore, it is of great significance to study how T cells play a role in the immune mechanism of autoimmune diseases through autophagy pathway to guide the clinical treatment of diseases.
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Affiliation(s)
| | | | | | | | - Liyun Zhang
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
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22
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Márton A, Veres KB, Erdődi F, Udvardy M, Illés Á, Rejtő L. The roles of phosphorylation of signaling proteins in the prognosis of acute myeloid leukemia. Pathol Oncol Res 2024; 30:1611747. [PMID: 39035053 PMCID: PMC11257863 DOI: 10.3389/pore.2024.1611747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/12/2024] [Indexed: 07/23/2024]
Abstract
Signaling pathways of Retinoblastoma (Rb) protein, Akt-kinase, and Erk-kinase (extracellular signal-regulated kinase) have an important role in the pathogenesis of acute myeloid leukemia. Constitutive activation of these proteins by phosphorylation contributes to cell survival by regulation of cell cycle, proliferation and proapoptotic signaling processes. According to previous data phosphorylated forms of these proteins represent a worse outcome for cancer patients. We investigated the presence of phosphorylated Rb (P-Rb), Akt (P-Akt) and Erk (P-Erk) proteins by Western blot technique using phospho-specific antibodies in bone marrow or peripheral blood samples of 69 AML patients, 36 patients with myelodysplastic syndrome (MDS) and 10 healthy volunteers. Expression level of PTEN (Phosphatase and tensin homolog) and PHLPP (PH domain and leucine-rich repeat Protein Phosphatase) phosphatases, the negative regulators of Akt kinase pathway were also examined. We tested the effect of these proteins on survival and on the correlation with known prognostic features in AML. We found 46.3% of AML patients had detectable P-Rb, 34.7% had P-Akt and 28.9% had P-Erk protein. 66.1% of patients expressing PTEN, 38.9% PHLPP, 37.2% both PTEN and PHLPP and 32.2% neither PTEN nor PHLPP phosphatases. Compared to nucleophosmin mutation (NPMc) negative samples P-Erk was significantly less in nucleophosmin mutated patients, P-Rb was significantly less in patients' group with more than 30 G/L peripheral leukocyte count by diagnosis. PHLPP was significantly present in FAB type M5. The expression of P-Rb represented significant better overall survival (OS), while P-Akt represented significantly worse event-free survival (EFS) in unfavorable cytogenetics patients. The presence of both PHLPP and PTEN phosphatases contributes to better OS and EFS, although the differences were not statistically significant. We confirmed significant positive correlation between P-Akt and PHLPP. Assessing the phosphorylation of Rb, Akt and Erk may define a subgroup of AML patients who would benefit especially from new targeted treatment options complemented the standard chemotherapy, and it may contribute to monitoring remission, relapse or progression of AML.
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Affiliation(s)
- Adrienn Márton
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | | | - Ferenc Erdődi
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Miklós Udvardy
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Árpád Illés
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Rejtő
- Department of Hematology, Szabolcs-Szatmár-Bereg County Teaching Hospital, Nyíregyháza, Hungary
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23
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Sha X, Zou X, Liu S, Guan C, Shi W, Gao J, Zhong X, Jiang X. Forkhead box O1 in metabolic dysfunction-associated fatty liver disease: molecular mechanisms and drug research. Front Nutr 2024; 11:1426780. [PMID: 39021599 PMCID: PMC11253077 DOI: 10.3389/fnut.2024.1426780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD) is a chronic liver disease that progresses from hepatic steatosis to non-alcoholic steatohepatitis, cirrhosis, and liver cancer, posing a huge burden on human health. Existing research has confirmed that forkhead box O1 (FOXO1), as a member of the FOXO transcription factor family, is upregulated in MAFLD. Its activity is closely related to nuclear-cytoplasmic shuttling and various post-translational modifications including phosphorylation, acetylation, and methylation. FOXO1 mediates the progression of MAFLD by regulating glucose metabolism, lipid metabolism, insulin resistance, oxidative stress, hepatic fibrosis, hepatocyte autophagy, apoptosis, and immune inflammation. This article elaborates on the regulatory role of FOXO1 in MAFLD, providing a summary and new insights for the current status of drug research and targeted therapies for MAFLD.
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Affiliation(s)
| | | | | | | | | | | | - Xiangyu Zhong
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xingming Jiang
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
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24
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de Antonellis P, Ferrucci V, Miceli M, Bibbo F, Asadzadeh F, Gorini F, Mattivi A, Boccia A, Russo R, Andolfo I, Lasorsa VA, Cantalupo S, Fusco G, Viscardi M, Brandi S, Cerino P, Monaco V, Choi DR, Cheong JH, Iolascon A, Amente S, Monti M, Fava LL, Capasso M, Kim HY, Zollo M. Targeting ATP2B1 impairs PI3K/Akt/FOXO signaling and reduces SARS-COV-2 infection and replication. EMBO Rep 2024; 25:2974-3007. [PMID: 38816514 PMCID: PMC11239940 DOI: 10.1038/s44319-024-00164-z] [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: 09/01/2022] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 06/01/2024] Open
Abstract
ATP2B1 is a known regulator of calcium (Ca2+) cellular export and homeostasis. Diminished levels of intracellular Ca2+ content have been suggested to impair SARS-CoV-2 replication. Here, we demonstrate that a nontoxic caloxin-derivative compound (PI-7) reduces intracellular Ca2+ levels and impairs SARS-CoV-2 infection. Furthermore, a rare homozygous intronic variant of ATP2B1 is shown to be associated with the severity of COVID-19. The mechanism of action during SARS-CoV-2 infection involves the PI3K/Akt signaling pathway activation, inactivation of FOXO3 transcription factor function, and subsequent transcriptional inhibition of the membrane and reticulum Ca2+ pumps ATP2B1 and ATP2A1, respectively. The pharmacological action of compound PI-7 on sustaining both ATP2B1 and ATP2A1 expression reduces the intracellular cytoplasmic Ca2+ pool and thus negatively influences SARS-CoV-2 replication and propagation. As compound PI-7 lacks toxicity in vitro, its prophylactic use as a therapeutic agent against COVID-19 is envisioned here.
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Affiliation(s)
- Pasqualino de Antonellis
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy
| | - Veronica Ferrucci
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy
| | - Marco Miceli
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
| | - Francesca Bibbo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Fatemeh Asadzadeh
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- European School of Molecular Medicine, SEMM, Naples, Italy
| | - Francesca Gorini
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Alessia Mattivi
- Armenise-Harvard Laboratory of Cell Division, Department of Cellular Computational and Integrative Biology-CIBIO, University of Trento, Trento, Italy
| | | | - Roberta Russo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Immacolata Andolfo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | | | | | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Maurizio Viscardi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Sergio Brandi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Pellegrino Cerino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Vittoria Monaco
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Department of Chemical Sciences, University 'Federico II' University of Naples, Naples, 80125, Italy
| | - Dong-Rac Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Elysiumbio Inc., #2007, Samsung Cheil B/D, 309, Teheran-ro, Gangnam-gu, Seoul, 06151, Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Achille Iolascon
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Stefano Amente
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Maria Monti
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Department of Chemical Sciences, University 'Federico II' University of Naples, Naples, 80125, Italy
| | - Luca L Fava
- Armenise-Harvard Laboratory of Cell Division, Department of Cellular Computational and Integrative Biology-CIBIO, University of Trento, Trento, Italy
| | - Mario Capasso
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Hong-Yeoul Kim
- Elysiumbio Inc., #2007, Samsung Cheil B/D, 309, Teheran-ro, Gangnam-gu, Seoul, 06151, Korea
| | - Massimo Zollo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy.
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy.
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy.
- European School of Molecular Medicine, SEMM, Naples, Italy.
- DAI Medicina di Laboratorio e Trasfusionale, 'Federico II' University of Naples, 80131, Naples, Italy.
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25
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McCaleb MR, Miranda AM, Khammash HA, Torres RM, Pelanda R. Regulation of Foxo1 expression is critical for central B cell tolerance and allelic exclusion. Cell Rep 2024; 43:114283. [PMID: 38796853 PMCID: PMC11246624 DOI: 10.1016/j.celrep.2024.114283] [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: 02/01/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024] Open
Abstract
Resolving the molecular mechanisms of central B cell tolerance might unveil strategies that prevent autoimmunity. Here, using a mouse model of central B cell tolerance in which Forkhead box protein O1 (Foxo1) is either deleted or over-expressed in B cells, we show that deleting Foxo1 blocks receptor editing, curtails clonal deletion, and decreases CXCR4 expression, allowing high-avidity autoreactive B cells to emigrate to the periphery whereby they mature but remain anergic and short lived. Conversely, expression of degradation-resistant Foxo1 promotes receptor editing in the absence of self-antigen but leads to allelic inclusion. Foxo1 over-expression also restores tolerance in autoreactive B cells harboring active PI3K, revealing opposing roles of Foxo1 and PI3K in B cell selection. Overall, we show that the transcription factor Foxo1 is a major gatekeeper of central B cell tolerance and that PI3K drives positive selection of immature B cells and establishes allelic exclusion by suppressing Foxo1.
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Affiliation(s)
- Megan R McCaleb
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Anjelica M Miranda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Hadeel A Khammash
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Raul M Torres
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA.
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26
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Fujiki K, Tanabe K, Suzuki S, Mochizuki A, Mochizuki-Kashio M, Sugaya T, Mizoguchi T, Itoh M, Nakamura-Ishizu A, Inamura H, Matsuoka M. Blockage of Akt activation suppresses cadmium-induced renal tubular cellular damages through aggrephagy in HK-2 cells. Sci Rep 2024; 14:14552. [PMID: 38914593 PMCID: PMC11196260 DOI: 10.1038/s41598-024-64579-3] [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: 02/07/2024] [Accepted: 06/11/2024] [Indexed: 06/26/2024] Open
Abstract
We have reported that an environmental pollutant, cadmium, promotes cell death in the human renal tubular cells (RTCs) through hyperactivation of a serine/threonine kinase Akt. However, the molecular mechanisms downstream of Akt in this process have not been elucidated. Cadmium has a potential to accumulate misfolded proteins, and proteotoxicity is involved in cadmium toxicity. To clear the roles of Akt in cadmium exposure-induced RTCs death, we investigated the possibility that Akt could regulate proteotoxicity through autophagy in cadmium chloride (CdCl2)-exposed HK-2 human renal proximal tubular cells. CdCl2 exposure promoted the accumulation of misfolded or damaged proteins, the formation of aggresomes (pericentriolar cytoplasmic inclusions), and aggrephagy (selective autophagy to degrade aggresome). Pharmacological inhibition of Akt using MK2206 or Akti-1/2 enhanced aggrephagy by promoting dephosphorylation and nuclear translocation of transcription factor EB (TFEB)/transcription factor E3 (TFE3), lysosomal transcription factors. TFEB or TFE3 knockdown by siRNAs attenuated the protective effects of MK2206 against cadmium toxicity. These results suggested that aberrant activation of Akt attenuates aggrephagy via TFEB or TFE3 to facilitate CdCl2-induced cell death. Furthermore, these roles of Akt/TFEB/TFE3 were conserved in CdCl2-exposed primary human RTCs. The present study shows the molecular mechanisms underlying Akt activation that promotes cadmium-induced RTCs death.
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Affiliation(s)
- Kota Fujiki
- Department of Hygiene and Public Health, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - K Tanabe
- Institute for Comprehensive Medical Sciences, Tokyo Women's Medical University, Tokyo, 162-8666, Japan
| | - S Suzuki
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - A Mochizuki
- Department of Bio-Medical Engineering, School of Engineering, Tokai University, Kanagawa, 259-1143, Japan
| | - M Mochizuki-Kashio
- Department of Microanatomy and Development Biology, Tokyo Women's Medical University, Tokyo, 162-8666, Japan
| | - T Sugaya
- Division of Nephrology and Hypertension, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan
| | - T Mizoguchi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - M Itoh
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - A Nakamura-Ishizu
- Department of Microanatomy and Development Biology, Tokyo Women's Medical University, Tokyo, 162-8666, Japan
| | - H Inamura
- Department of Hygiene and Public Health, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - M Matsuoka
- Department of Hygiene and Public Health, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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27
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Artigas-Arias M, Curi R, Marzuca-Nassr GN. Myogenic microRNAs as Therapeutic Targets for Skeletal Muscle Mass Wasting in Breast Cancer Models. Int J Mol Sci 2024; 25:6714. [PMID: 38928418 PMCID: PMC11204047 DOI: 10.3390/ijms25126714] [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: 05/02/2024] [Revised: 05/31/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Breast cancer is the type of cancer with the highest prevalence in women worldwide. Skeletal muscle atrophy is an important prognostic factor in women diagnosed with breast cancer. This atrophy stems from disrupted skeletal muscle homeostasis, triggered by diminished anabolic signalling and heightened inflammatory conditions, culminating in an upregulation of skeletal muscle proteolysis gene expression. The importance of delving into research on modulators of skeletal muscle atrophy, such as microRNAs (miRNAs), which play a crucial role in regulating cellular signalling pathways involved in skeletal muscle protein synthesis and degradation, has been recognised. This holds true for conditions of homeostasis as well as pathologies like cancer. However, the determination of specific miRNAs that modulate skeletal muscle atrophy in breast cancer conditions has not yet been explored. In this narrative review, we aim to identify miRNAs that could directly or indirectly influence skeletal muscle atrophy in breast cancer models to gain an updated perspective on potential therapeutic targets that could be modulated through resistance exercise training, aiming to mitigate the loss of skeletal muscle mass in breast cancer patients.
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Affiliation(s)
- Macarena Artigas-Arias
- Programa de Doctorado en Ciencias Mención Biología Celular y Molecular Aplicada, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Rui Curi
- Interdisciplinary Post-graduate Program in Health Sciences, Universidade Cruzeiro do Sul, São Paulo 01506-000, Brazil;
| | - Gabriel Nasri Marzuca-Nassr
- Departamento de Ciencias de la Rehabilitación, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
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28
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Kapitonova AA, Perfilova KV, Cooley RB, Sluchanko NN. Phosphorylation Code of Human Nucleophosmin Includes Four Cryptic Sites for Hierarchical Binding of 14-3-3 Proteins. J Mol Biol 2024; 436:168592. [PMID: 38702038 DOI: 10.1016/j.jmb.2024.168592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/18/2024] [Accepted: 04/27/2024] [Indexed: 05/06/2024]
Abstract
Nucleophosmin (NPM1) is the 46th most abundant human protein with many functions whose dysregulation leads to various cancers. Pentameric NPM1 resides in the nucleolus but can also shuttle to the cytosol. NPM1 is regulated by multisite phosphorylation, yet molecular consequences of site-specific NPM1 phosphorylation remain elusive. Here we identify four 14-3-3 protein binding sites in NPM1 concealed within its oligomerization and α-helical C-terminal domains that are found phosphorylated in vivo. By combining mutagenesis, in-cell phosphorylation and PermaPhos technology for site-directed incorporation of a non-hydrolyzable phosphoserine mimic, we show how phosphorylation promotes NPM1 monomerization and partial unfolding, to recruit 14-3-3 dimers with low-micromolar affinity. Using fluorescence anisotropy we quantified pairwise interactions of all seven human 14-3-3 isoforms with four recombinant NPM1 phosphopeptides and assessed their druggability by fusicoccin. This revealed a complex hierarchy of 14-3-3 affinities toward the primary (S48, S293) and secondary (S106, S260) sites, differentially modulated by the small molecule. As three of these 14-3-3 binding phosphosites in NPM1 reside within signal sequences, this work suggests a mechanism of NPM1 regulation by which NPM1 phosphorylation can promote 14-3-3 binding to affect NPM1 shuttling between cell compartments. It also provides further evidence that phosphorylation-induced structural rearrangements of globular proteins serve to expose otherwise cryptic 14-3-3-binding sites that are important for cellular function.
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Affiliation(s)
- Anna A Kapitonova
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Kristina V Perfilova
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Richard B Cooley
- GCE4All Center, Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR 97331, USA
| | - Nikolai N Sluchanko
- A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia.
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29
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Kamal KY, Othman MA, Kim JH, Lawler JM. Bioreactor development for skeletal muscle hypertrophy and atrophy by manipulating uniaxial cyclic strain: proof of concept. NPJ Microgravity 2024; 10:62. [PMID: 38862543 PMCID: PMC11167039 DOI: 10.1038/s41526-023-00320-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 08/15/2023] [Indexed: 06/13/2024] Open
Abstract
Skeletal muscles overcome terrestrial, gravitational loading by producing tensile forces that produce movement through joint rotation. Conversely, the microgravity of spaceflight reduces tensile loads in working skeletal muscles, causing an adaptive muscle atrophy. Unfortunately, the design of stable, physiological bioreactors to model skeletal muscle tensile loading during spaceflight experiments remains challenging. Here, we tested a bioreactor that uses initiation and cessation of cyclic, tensile strain to induce hypertrophy and atrophy, respectively, in murine lineage (C2C12) skeletal muscle myotubes. Uniaxial cyclic stretch of myotubes was conducted using a StrexCell® (STB-1400) stepper motor system (0.75 Hz, 12% strain, 60 min day^-1). Myotube groups were assigned as follows: (a) quiescent over 2- or (b) 5-day (no stretch), (c) experienced 2-days (2dHY) or (d) 5-days (5dHY) of cyclic stretch, or (e) 2-days of cyclic stretch followed by a 3-day cessation of stretch (3dAT). Using ß-sarcoglycan as a sarcolemmal marker, mean myotube diameter increased significantly following 2dAT (51%) and 5dAT (94%) vs. matched controls. The hypertrophic, anabolic markers talin and Akt phosphorylation (Thr308) were elevated with 2dHY but not in 3dAT myotubes. Inflammatory, catabolic markers IL-1ß, IL6, and NF-kappaB p65 subunit were significantly higher in the 3dAT group vs. all other groups. The ratio of phosphorylated FoxO3a/total FoxO3a was significantly lower in 3dAT than in the 2dHY group, consistent with elevated catabolic signaling during unloading. In summary, we demonstrated proof-of-concept for a spaceflight research bioreactor, using uniaxial cyclic stretch to produce myotube hypertrophy with increased tensile loading, and myotube atrophy with subsequent cessation of stretch.
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Affiliation(s)
- Khaled Y Kamal
- Redox Biology & Cell Signaling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition, Texas A&M University, College Station, TX, USA.
| | - Mariam Atef Othman
- Redox Biology & Cell Signaling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition, Texas A&M University, College Station, TX, USA
| | - Joo-Hyun Kim
- Redox Biology & Cell Signaling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition, Texas A&M University, College Station, TX, USA
| | - John M Lawler
- Redox Biology & Cell Signaling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition, Texas A&M University, College Station, TX, USA
- Department of Nutrition, Texas A&M University, College Station, TX, USA
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Šetinc M, Celinšćak Ž, Bočkor L, Zajc Petranović M, Stojanović Marković A, Peričić Salihović M, Deelen J, Škarić-Jurić T. The role of longevity-related genetic variant interactions as predictors of survival after 85 years of age. Mech Ageing Dev 2024; 219:111926. [PMID: 38484896 PMCID: PMC11166054 DOI: 10.1016/j.mad.2024.111926] [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: 01/26/2024] [Revised: 02/27/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024]
Abstract
Genome-wide association studies and candidate gene studies have identified several genetic variants that might play a role in achieving longevity. This study investigates interactions between pairs of those single nucleotide polymorphisms (SNPs) and their effect on survival above the age of 85 in a sample of 327 Croatian individuals. Although none of the SNPs individually showed a significant effect on survival in this sample, 14 of the 359 interactions tested (between SNPs not in LD) reached the level of nominal significance (p<0.05), showing a potential effect on late-life survival. Notably, SH2B3 rs3184504 interacted with different SNPs near TERC, TP53 rs1042522 with different SNPs located near the CDKN2B gene, and CDKN2B rs1333049 with different SNPs in FOXO3, as well as with LINC02227 rs2149954. The other interaction pairs with a possible effect on survival were FOXO3 rs2802292 and ERCC2 rs50871, IL6 rs1800795 and GHRHR rs2267723, LINC02227 rs2149954 and PARK7 rs225119, as well as PARK7 rs225119 and PTPN1 rs6067484. These interactions remained significant when tested together with a set of health-related variables that also had a significant effect on survival above 85 years. In conclusion, our results confirm the central role of genetic regulation of insulin signalling and cell cycle control in longevity.
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Affiliation(s)
- Maja Šetinc
- Institute for Anthropological Research, Zagreb 10000, Croatia; Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb 10000, Croatia.
| | | | - Luka Bočkor
- Institute for Anthropological Research, Zagreb 10000, Croatia; Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb 10000, Croatia
| | | | | | | | - Joris Deelen
- Max Planck Institute for Biology of Ageing, Cologne 50931, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Cologne 50931, Germany.
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31
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Tufail M, Wan WD, Jiang C, Li N. Targeting PI3K/AKT/mTOR signaling to overcome drug resistance in cancer. Chem Biol Interact 2024; 396:111055. [PMID: 38763348 DOI: 10.1016/j.cbi.2024.111055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/21/2024]
Abstract
This review comprehensively explores the challenge of drug resistance in cancer by focusing on the pivotal PI3K/AKT/mTOR pathway, elucidating its role in oncogenesis and resistance mechanisms across various cancer types. It meticulously examines the diverse mechanisms underlying resistance, including genetic mutations, feedback loops, and microenvironmental factors, while also discussing the associated resistance patterns. Evaluating current therapeutic strategies targeting this pathway, the article highlights the hurdles encountered in drug development and clinical trials. Innovative approaches to overcome resistance, such as combination therapies and precision medicine, are critically analyzed, alongside discussions on emerging therapies like immunotherapy and molecularly targeted agents. Overall, this comprehensive review not only sheds light on the complexities of resistance in cancer but also provides a roadmap for advancing cancer treatment.
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Affiliation(s)
- Muhammad Tufail
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Wen-Dong Wan
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Canhua Jiang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China; Institute of Oral Precancerous Lesions, Central South University, Changsha, China; Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ning Li
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China; Institute of Oral Precancerous Lesions, Central South University, Changsha, China; Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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32
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Roopashree PG, Shetty SS, Shetty VV, Suhasini PC, Suchetha KN. Inhibitory effects of medium-chain fatty acids on the proliferation of human breast cancer cells via suppression of Akt/mTOR pathway and modulating the Bcl-2 family protein. J Cell Biochem 2024; 125:e30571. [PMID: 38666486 DOI: 10.1002/jcb.30571] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 06/12/2024]
Abstract
Medium-chain fatty acids (MCFAs) have 6-12 carbon atoms and are instantly absorbed into the bloodstream before traveling to the portal vein and the liver, where they are immediately used for energy and may have antitumor effects. Its role in breast cancer is poorly understood. To investigate the apoptosis-inducing effect of MCFAs in breast cancer cells, cell viability assay, colony formation assay, cell migration assay, cell invasion assay, nuclear morphology, cell cycle assay, intracellular reactive oxygen species (ROS), matrix metalloproteinase (MMP), apoptosis, RT-qPCR analysis, and Western blot analysis were performed. In the present study, MCFA treatments reduced proliferative capability, increased ROS level, increased the depletion of MMP, induced G0/G1 and S phase cell cycle arrest, and late apoptosis of breast cancer cells in an effective concentration. Besides, MCFA treatment contributed to the upregulation of proapoptotic protein (BAK) and caspase-3, and the downregulation of antiapoptotic protein (Bcl-2). Mechanistically, phosphorylation levels of EGFR, Akt, and mTOR were significantly reduced in breast cancer cells treated with MCFAs. However, no significant changes in apoptosis and signaling-related proteins were observed in lauric acid-treated ER-positive cancer cells. Our findings suggested that MCFAs suppressed breast cancer cell proliferation by modulating the PI3K/Akt/mTOR signaling pathway. MCFAs may be a promising therapeutic drug for treating breast cancer.
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Affiliation(s)
- P G Roopashree
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Shilpa S Shetty
- Cellomics, Lipidomics and Molecular Genetics Division, Central Research Laboratory, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Vijith Vittal Shetty
- Department of Oncology, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - P C Suhasini
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Kumari N Suchetha
- Department of Biochemistry, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
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Bae S, Bae S, Kim HS, Lim YJ, Kim G, Park IC, So KA, Kim TJ, Lee JH. Deguelin Restores Paclitaxel Sensitivity in Paclitaxel-Resistant Ovarian Cancer Cells via Inhibition of the EGFR Signaling Pathway. Cancer Manag Res 2024; 16:507-525. [PMID: 38827785 PMCID: PMC11144006 DOI: 10.2147/cmar.s457221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
Background Ovarian cancer is one of women's malignancies with the highest mortality among gynecological cancers. Paclitaxel is used in first-line ovarian cancer chemotherapy. Research on paclitaxel-resistant ovarian cancer holds significant clinical importance. Methods Cell viability and flow cytometric assays were conducted at different time and concentration points of deguelin and paclitaxel treatment. Immunoblotting was performed to assess the activation status of key signaling molecules important for cell survival and proliferation following treatment with deguelin and paclitaxel. The fluo-3 acetoxymethyl assay for P-glycoprotein transport activity assay and cell viability assay in the presence of N-acetyl-L-cysteine were also conducted. Results Cell viability and flow cytometric assays demonstrated that deguelin resensitized paclitaxel in a dose- and time-dependent manner. Cotreatment with deguelin and paclitaxel inhibited EGFR and its downstream signaling molecules, including AKT, ERK, STAT3, and p38 MAPK, in SKOV3-TR cells. Interestingly, cotreatment with deguelin and paclitaxel suppressed the expression level of EGFR via the lysosomal degradation pathway. Cotreatment did not affect the expression and function of P-glycoprotein. N-acetyl-L-cysteine failed to restore cell cytotoxicity when used in combination with deguelin and paclitaxel in SKOV3-TR cells. The expression of BCL-2, MCL-1, and the phosphorylation of the S155 residue of BAD were downregulated. Moreover, inhibition of paclitaxel resistance by deguelin was also observed in HeyA8-MDR cells. Conclusion Our research showed that deguelin effectively suppresses paclitaxel resistance in SKOV3-TR ovarian cancer cells by downregulating the EGFR and its downstream signaling pathway and modulating the BCL-2 family proteins. Furthermore, deguelin exhibits inhibitory effects on paclitaxel resistance in HeyA8-MDR ovarian cancer cells, suggesting a potential mechanism for paclitaxel resensitization that may not be cell-specific. These findings suggest that deguelin holds promise as an anticancer therapeutic agent for overcoming chemoresistance in ovarian cancer.
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Affiliation(s)
- Seunghee Bae
- Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Sowon Bae
- Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hee Su Kim
- Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Ye Jin Lim
- Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Gyeongmi Kim
- Division of Fusion Radiology Research, Korea Institute of Radiological & Medical Sciences, Seoul, 01812, Republic of Korea
| | - In-Chul Park
- Division of Fusion Radiology Research, Korea Institute of Radiological & Medical Sciences, Seoul, 01812, Republic of Korea
| | - Kyeong A So
- Department of Obstetrics and Gynecology, Konkuk University School of Medicine, Seoul, 05030, Republic of Korea
| | - Tae Jin Kim
- Department of Obstetrics and Gynecology, Konkuk University School of Medicine, Seoul, 05030, Republic of Korea
| | - Jae Ho Lee
- Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, Republic of Korea
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Wagner T, Priyanka P, Micheletti R, Friedman MJ, Nair SJ, Gamliel A, Taylor H, Song X, Cho M, Oh S, Li W, Han J, Ohgi KA, Abrass M, D'Antonio-Chronowska A, D'Antonio M, Hazuda H, Duggirala R, Blangero J, Ding S, Guzmann C, Frazer KA, Aggarwal AK, Zemljic-Harpf AE, Rosenfeld MG, Suh Y. Recruitment of CTCF to the SIRT1 promoter after Oxidative Stress mediates Cardioprotective Transcription. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.17.594600. [PMID: 38798402 PMCID: PMC11118446 DOI: 10.1101/2024.05.17.594600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Because most DNA-binding transcription factors (dbTFs), including the architectural regulator CTCF, bind RNA and exhibit di-/multimerization, a central conundrum is whether these distinct properties are regulated post-transcriptionally to modulate transcriptional programs. Here, investigating stress-dependent activation of SIRT1, encoding an evolutionarily-conserved protein deacetylase, we show that induced phosphorylation of CTCF acts as a rheostat to permit CTCF occupancy of low-affinity promoter DNA sites to precisely the levels necessary. This CTCF recruitment to the SIRT1 promoter is eliciting a cardioprotective cardiomyocyte transcriptional activation program and provides resilience against the stress of the beating heart in vivo . Mice harboring a mutation in the conserved low-affinity CTCF promoter binding site exhibit an altered, cardiomyocyte-specific transcriptional program and a systolic heart failure phenotype. This transcriptional role for CTCF reveals that a covalent dbTF modification regulating signal-dependent transcription serves as a previously unsuspected component of the oxidative stress response.
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35
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de Brot S, Cobb J, Alibhai AA, Jackson-Oxley J, Haque M, Patke R, Harris AE, Woodcock CL, Lothion-Roy J, Varun D, Thompson R, Gomes C, Kubale V, Dunning MD, Jeyapalan JN, Mongan NP, Rutland CS. Immunohistochemical Investigation into Protein Expression Patterns of FOXO4, IRF8 and LEF1 in Canine Osteosarcoma. Cancers (Basel) 2024; 16:1945. [PMID: 38792023 PMCID: PMC11120020 DOI: 10.3390/cancers16101945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/16/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024] Open
Abstract
Osteosarcoma (OSA) is the most common type of primary bone malignancy in people and dogs. Our previous molecular comparisons of canine OSA against healthy bone resulted in the identification of differentially expressed protein-expressing genes (forkhead box protein O4 (FOXO4), interferon regulatory factor 8 (IRF8), and lymphoid enhancer binding factor 1 (LEF1)). Immunohistochemistry (IHC) and H-scoring provided semi-quantitative assessment of nuclear and cytoplasmic staining alongside qualitative data to contextualise staining (n = 26 patients). FOXO4 was expressed predominantly in the cytoplasm with significantly lower nuclear H-scores. IRF8 H-scores ranged from 0 to 3 throughout the cohort in the nucleus and cytoplasm. LEF1 was expressed in all patients with significantly lower cytoplasmic staining compared to nuclear. No sex or anatomical location differences were observed. While reduced levels of FOXO4 might indicate malignancy, the weak or absent protein expression limits its primary use as diagnostic tumour marker. IRF8 and LEF1 have more potential for prognostic and diagnostic uses and facilitate further understanding of their roles within their respective molecular pathways, including Wnt/beta-catenin/LEF1 signalling and differential regulation of tumour suppressor genes. Deeper understanding of the mechanisms involved in OSA are essential contributions towards the development of novel diagnostic, prognostic, and treatment options in human and veterinary medicine contexts.
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Affiliation(s)
- Simone de Brot
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Comparative Pathology Platform of the University of Bern (COMPATH), Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Jack Cobb
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Aziza A. Alibhai
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Jorja Jackson-Oxley
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Maria Haque
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Rodhan Patke
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Anna E. Harris
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Corinne L. Woodcock
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Jennifer Lothion-Roy
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Dhruvika Varun
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Rachel Thompson
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Claudia Gomes
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Valentina Kubale
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Mark D. Dunning
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Willows Veterinary Centre and Referral Service, Solihull B90 4NH, UK
| | - Jennie N. Jeyapalan
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Faculty of Medicine and Health Science, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK
| | - Nigel P. Mongan
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Willows Veterinary Centre and Referral Service, Solihull B90 4NH, UK
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10075, USA
| | - Catrin S. Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Faculty of Medicine and Health Science, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK
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Kang JB, Koh PO. Retinoic acid alleviates the reduction of Akt and Bad phosphorylation and regulates Bcl-2 family protein interactions in animal models of ischemic stroke. PLoS One 2024; 19:e0303213. [PMID: 38753710 PMCID: PMC11098415 DOI: 10.1371/journal.pone.0303213] [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: 06/21/2023] [Accepted: 04/21/2024] [Indexed: 05/18/2024] Open
Abstract
Ischemic stroke causes a lack of oxygen and glucose supply to brain, eventually leads to severe neurological disorders. Retinoic acid is a major metabolic product of vitamin A and has various biological effects. The PI3K-Akt signaling pathway is an important survival pathway in brain. Phosphorylated Akt is important in regulating survival and apoptosis. We examined whether retinoic acid has neuroprotective effects in stroke model by regulating Akt and its downstream protein, Bad. Moreover, we investigated the relationship between retinoic acid and Bcl-2 family protein interactions. Animals were intraperitoneally administered vehicle or retinoic acid (5 mg/kg) for four days before surgery and ischemic stroke was induced by middle cerebral artery occlusion (MCAO) surgery. Neurobehavioral tests were performed 24 h after MCAO and cerebral cortical tissues were collected. Cresyl violet staining and TUNEL histochemistry were performed, Western blot and immunoprecipitation analysis were performed to elucidate the expression of various proteins. Retinoic acid reduced neurological deficits and histopathological changes, decreased the number of TUNEL-positive cells, and alleviated reduction of phospho-PDK1, phospho-Akt, and phospho-Bad expression caused by MCAO damage. Immunoprecipitation analysis showed that MCAO damage reduced the interaction between phospho-Bad and 14-3-3, which was attenuated by retinoic acid. Furthermore, retinoic acid mitigated the increase in Bcl-2/Bad and Bcl-xL/Bad binding levels and the reduction in Bcl-2/Bax and Bcl-xL/Bax binding levels caused by MCAO damage. Retinoic acid alleviated MCAO-induced increase of caspase-3 and cleaved caspase-3 expression. We demonstrate that retinoic acid prevented apoptosis against cerebral ischemia through phosphorylation of Akt and Bad, maintenance of phospho-Bad and 14-3-3 binding, and regulation of Bcl-2 family protein interactions. .
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Affiliation(s)
- Ju-Bin Kang
- Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, Jinju, South Korea
| | - Phil-Ok Koh
- Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, Jinju, South Korea
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37
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Abdelilah-Seyfried S, Ola R. Shear stress and pathophysiological PI3K involvement in vascular malformations. J Clin Invest 2024; 134:e172843. [PMID: 38747293 PMCID: PMC11093608 DOI: 10.1172/jci172843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2024] Open
Abstract
Molecular characterization of vascular anomalies has revealed that affected endothelial cells (ECs) harbor gain-of-function (GOF) mutations in the gene encoding the catalytic α subunit of PI3Kα (PIK3CA). These PIK3CA mutations are known to cause solid cancers when occurring in other tissues. PIK3CA-related vascular anomalies, or "PIKopathies," range from simple, i.e., restricted to a particular form of malformation, to complex, i.e., presenting with a range of hyperplasia phenotypes, including the PIK3CA-related overgrowth spectrum. Interestingly, development of PIKopathies is affected by fluid shear stress (FSS), a physiological stimulus caused by blood or lymph flow. These findings implicate PI3K in mediating physiological EC responses to FSS conditions characteristic of lymphatic and capillary vessel beds. Consistent with this hypothesis, increased PI3K signaling also contributes to cerebral cavernous malformations, a vascular disorder that affects low-perfused brain venous capillaries. Because the GOF activity of PI3K and its signaling partners are excellent drug targets, understanding PIK3CA's role in the development of vascular anomalies may inform therapeutic strategies to normalize EC responses in the diseased state. This Review focuses on PIK3CA's role in mediating EC responses to FSS and discusses current understanding of PIK3CA dysregulation in a range of vascular anomalies that particularly affect low-perfused regions of the vasculature. We also discuss recent surprising findings linking increased PI3K signaling to fast-flow arteriovenous malformations in hereditary hemorrhagic telangiectasias.
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Affiliation(s)
| | - Roxana Ola
- Experimental Pharmacology Mannheim, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Haider S, Chakraborty S, Chowdhury G, Chakrabarty A. Opposing Interplay between Nuclear Factor Erythroid 2-Related Factor 2 and Forkhead BoxO 1/3 is Responsible for Sepantronium Bromide's Poor Efficacy and Resistance in Cancer cells: Opportunity for Combination Therapy in Triple Negative Breast Cancer. ACS Pharmacol Transl Sci 2024; 7:1237-1251. [PMID: 38751638 PMCID: PMC11091984 DOI: 10.1021/acsptsci.3c00279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 05/18/2024]
Abstract
Survivin, a cancer-cell-specific multifunctional protein, is regulated by many oncogenic signaling pathways and an effective therapeutic target. Although, several types of survivin-targeting agents have been developed over the past few decades, none of them received clinical approval. This could be because survivin expression is tightly controlled by the feedback interaction between different signaling molecules. Of the several signaling pathways that are known to regulate survivin expression, the phosphatidylinositol 3-kinase/AKT serine-threonine kinase/forkhead boxO (PI3K/AKT/FoxO) pathway is well-known for feedback loops constructed by cross-talk among different molecules. Using sepantronium bromide (YM155), the first of its class of survivin-suppressant, we uncovered the existence of an interesting cross-talk between Nuclear Factor Erythroid 2-Related Factor 2 (NRF2) and FoxO transcription factors that also contributes to YM155 resistance in triple negative breast cancer (TNBC) cells. Pharmacological manipulation to interrupt this interaction not only helped restore/enhance the drug-sensitivity but also prompted effective immune clearance of cancer cells. Because the YM155-induced reactive oxygen species (ROS) initiates this feedback, we believe that it will be occurring for many ROS-producing chemotherapeutic agents. Our work provides a rational explanation for the poor efficacy of YM155 compared to standard chemotherapy in clinical trials. Finally, the triple drug combination approach used herein might help reintroducing YM155 into the clinical pipeline, and given the high survivin expression in TNBC cells in general, it could be effective in treating this subtype of breast cancer.
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Affiliation(s)
- Shaista Haider
- Department
of Life Sciences, Shiv Nadar Institution
of Eminence, Greater Noida Gautam
Buddha Nagar Uttar Pradesh 201314, India
| | - Shayantani Chakraborty
- Department
of Life Sciences, Shiv Nadar Institution
of Eminence, Greater Noida Gautam
Buddha Nagar Uttar Pradesh 201314, India
| | - Goutam Chowdhury
- Independent
Researcher, Greater Noida Gautam Buddha Nagar Uttar Pradesh 201308, India
| | - Anindita Chakrabarty
- Department
of Life Sciences, Shiv Nadar Institution
of Eminence, Greater Noida Gautam
Buddha Nagar Uttar Pradesh 201314, India
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Wang C, Liu R, Luo W, Zhao P, Wang H. Retinoic acid signalling inhibits myogenesis by blocking MYOD translation in pig skeletal muscle cells. Anim Biotechnol 2024; 35:2351973. [PMID: 38753962 DOI: 10.1080/10495398.2024.2351973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Vitamin A is an essential nutrient in animals, playing important roles in animal health. In the pig industry, proper supplementation of vitamin A in the feed can improve pork production performance, while deficiency or excessive intake can lead to growth retardation or disease. However, the specific molecular mechanisms through which vitamin A operates on pig skeletal muscle growth as well as muscle stem cell function remain unexplored. Therefore, in this study, we isolated the pig primary skeletal muscle stem cells (pMuSCs) and treated with retinoic acid (RA), the natural metabolite of vitamin A, and then examined the myogenic capacity of pMuSCs via immunostaining, real-time PCR, CCK8 and western-blot analysis. Unexpectedly, the RA caused a significant decrease in the proliferation and differentiation of pMuSCs. Mechanistically, the RA addition induced the activation of retinoic acid receptor gamma (RARγ), which inhibited the myogenesis through the blockage of protein translation of the master myogenic regulator myogenic differentiation 1 gene (MYOD). Specifically, RARγ inactivate AKT kinase (AKT) signalling and lead to dephosphorylation of eukaryotic translation initiation factor 4E binding protein 1 (eIF4EBP1), which in turn repress the eukaryotic translation initiation factor 4E (eIF4E) complex and block mRNA translation of MYOD. Inhibition of AKT could rescue the myogenic defects of RA-treated pMuSCs. Our findings revealed that retinoid acid signalling inhibits the skeletal muscle stem cell proliferation and differentiation in pigs. Therefore, the vitamin A supplement in the feedstuff should be cautiously optimized to avoid the potential adverse consequences on muscle development associated with the excessive levels of retinoic acid.
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Affiliation(s)
- Changying Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Ruige Liu
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wenzhe Luo
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Pengxiang Zhao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Heng Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
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40
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Zhou X, Dong S, Zhou Y, He Z, Zhang Z, Liao L, Zou B, Zheng X, Peng K, Duan X. EMX2 inhibits clear cell renal cell carcinoma progress via modulating Akt/FOXO3a pathway. Mol Carcinog 2024; 63:951-961. [PMID: 38362840 DOI: 10.1002/mc.23700] [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: 11/07/2023] [Revised: 01/19/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
Empty spiracles homeobox 2 (EMX2) is initially identified as a key transcription factor that plays an essential role in the regulation of neuronal development and some brain disorders. Recently, several studies emphasized that EMX2 could as a tumor suppressor, but its role in human clear cell renal cell carcinoma (ccRCC) remains unclear. In the present study, we investigated the role and underlying mechanism of EMX2 in the regulation of ccRCC progress. Our results demonstrated that EMX2 expression was markedly decreased in ccRCC tissues and cell lines, and low EMX2 expression predicted the poor prognosis of ccRCC patients. In addition, forced expression of EMX2 significantly inhibited the cell growth, migration, and invasion in vitro, as well as ccRCC tumor growth in nude mice, via, at least in part, regulating Akt/FOXO3a pathway. In detail, EMX2 could attenuate the phosphorylation levels of Akt and FOXO3a, and increase FOXO3a expression without affecting total Akt expression in vivo and in vitro. Meanwhile, shRNA-mediated knockdown of FOXO3a expression could obviously attenuate the effects of EMX2 on cell growth, migration, invasion, and tumor growth. Furthermore, EMX2 could significantly attenuate the interaction between Akt and FOXO3a. Taken together, our results demonstrated that EMX2 could inhibit ccRCC progress through, at least in part, modulating Akt/FOXO3a signaling pathway, thus representing a novel role and underlying mechanism of EMX2 in the regulation of ccRCC progress.
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Affiliation(s)
- Xiaofeng Zhou
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Sicheng Dong
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Yuhao Zhou
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Zhiqing He
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Zhixiong Zhang
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Liqiong Liao
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Bangyu Zou
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaopeng Zheng
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Kaoqing Peng
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
| | - Xiaolu Duan
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Key Laboratory of Urology, Guangzhou, China
- Guangdong Engineering Research Center of Urinary Minimally Invasive Surgery Robot and Intelligent Equipment, Guangzhou, China
- Guangzhou Institute of Urology, Guangzhou, China
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Yang L, Liao J, Huang H, Lee TL, Qi H. Stage-specific regulation of undifferentiated spermatogonia by AKT1S1-mediated AKT-mTORC1 signaling during mouse spermatogenesis. Dev Biol 2024; 509:11-27. [PMID: 38311163 DOI: 10.1016/j.ydbio.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/03/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Undifferentiated spermatogonia are composed of a heterogeneous cell population including spermatogonial stem cells (SSCs). Molecular mechanisms underlying the regulation of various spermatogonial cohorts during their self-renewal and differentiation are largely unclear. Here we show that AKT1S1, an AKT substrate and inhibitor of mTORC1, regulates the homeostasis of undifferentiated spermatogonia. Although deletion of Akt1s1 in mouse appears not grossly affecting steady-state spermatogenesis and male mice are fertile, the subset of differentiation-primed OCT4+ spermatogonia decreased significantly, whereas self-renewing GFRα1+ and proliferating PLZF+ spermatogonia were sustained. Both neonatal prospermatogonia and the first wave spermatogenesis were greatly reduced in Akt1s1-/- mice. Further analyses suggest that OCT4+ spermatogonia in Akt1s1-/- mice possess altered PI3K/AKT-mTORC1 signaling, gene expression and carbohydrate metabolism, leading to their functionally compromised developmental potential. Collectively, these results revealed an important role of AKT1S1 in mediating the stage-specific signals that regulate the self-renewal and differentiation of spermatogonia during mouse spermatogenesis.
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Affiliation(s)
- Lele Yang
- Center for Cell Lineage and Development, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jinyue Liao
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Hongying Huang
- The Experimental Animal Center, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Tin Lap Lee
- GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Huayu Qi
- Center for Cell Lineage and Development, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
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42
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Meuten TK, Dean GA, Thamm DH. Review: The PI3K-AKT-mTOR signal transduction pathway in canine cancer. Vet Pathol 2024; 61:339-356. [PMID: 37905509 DOI: 10.1177/03009858231207021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Tumors in dogs and humans share many similar molecular and genetic features, incentivizing a better understanding of canine neoplasms not only for the purpose of treating companion animals, but also to facilitate research of spontaneously developing tumors with similar biologic behavior and treatment approaches in an immunologically competent animal model. Multiple tumor types of both species have similar dysregulation of signal transduction through phosphatidylinositol 3-kinase (PI3K), protein kinase B (PKB; AKT), and mechanistic target of rapamycin (mTOR), collectively known as the PI3K-AKT-mTOR pathway. This review aims to delineate the pertinent aspects of the PI3K-AKT-mTOR signaling pathway in health and in tumor development. It will then present a synopsis of current understanding of PI3K-AKT-mTOR signaling in important canine cancers and advancements in targeted inhibitors of this pathway.
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Kamayirese S, Maity S, Hansen LA, Lovas S. The Development of CDC25A-Derived Phosphoseryl Peptides That Bind 14-3-3ε with High Affinities. Int J Mol Sci 2024; 25:4918. [PMID: 38732131 PMCID: PMC11084659 DOI: 10.3390/ijms25094918] [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: 03/19/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
Overexpression of the 14-3-3ε protein is associated with suppression of apoptosis in cutaneous squamous cell carcinoma (cSCC). This antiapoptotic activity of 14-3-3ε is dependent on its binding to CDC25A; thus, inhibiting 14-3-3ε - CDC25A interaction is an attractive therapeutic approach to promote apoptosis in cSCC. In this regard, designing peptide inhibitors of 14-3-3ε - CDC25A interactions is of great interest. This work reports the rational design of peptide analogs of pS, a CDC25A-derived peptide that has been shown to inhibit 14-3-3ε-CDC25A interaction and promote apoptosis in cSCC with micromolar IC50. We designed new peptide analogs in silico by shortening the parent pS peptide from 14 to 9 amino acid residues; then, based on binding motifs of 14-3-3 proteins, we introduced modifications in the pS(174-182) peptide. We studied the binding of the peptides using conventional molecular dynamics (MD) and steered MD simulations, as well as biophysical methods. Our results showed that shortening the pS peptide from 14 to 9 amino acids reduced the affinity of the peptide. However, substituting Gln176 with either Phe or Tyr amino acids rescued the binding of the peptide. The optimized peptides obtained in this work can be candidates for inhibition of 14-3-3ε - CDC25A interactions in cSCC.
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Affiliation(s)
| | | | | | - Sándor Lovas
- Department of Biomedical Sciences, Creighton University, Omaha, NE 68178, USA
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Jose E, March-Steinman W, Wilson BA, Shanks L, Parkinson C, Alvarado-Cruz I, Sweasy JB, Paek AL. Temporal coordination of the transcription factor response to H 2O 2 stress. Nat Commun 2024; 15:3440. [PMID: 38653977 PMCID: PMC11039679 DOI: 10.1038/s41467-024-47837-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: 04/07/2023] [Accepted: 04/12/2024] [Indexed: 04/25/2024] Open
Abstract
Oxidative stress from excess H2O2 activates transcription factors that restore redox balance and repair oxidative damage. Although many transcription factors are activated by H2O2, it is unclear whether they are activated at the same H2O2 concentration, or time. Dose-dependent activation is likely as oxidative stress is not a singular state and exhibits dose-dependent outcomes including cell-cycle arrest and cell death. Here, we show that transcription factor activation is both dose-dependent and coordinated over time. Low levels of H2O2 activate p53, NRF2 and JUN. Yet under high H2O2, these transcription factors are repressed, and FOXO1, NF-κB, and NFAT1 are activated. Time-lapse imaging revealed that the order in which these two groups of transcription factors are activated depends on whether H2O2 is administered acutely by bolus addition, or continuously through the glucose oxidase enzyme. Finally, we provide evidence that 2-Cys peroxiredoxins control which group of transcription factors are activated.
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Affiliation(s)
- Elizabeth Jose
- Molecular and Cellular Biology, University of Arizona, Tucson, AZ, 85721, USA
| | | | - Bryce A Wilson
- Molecular and Cellular Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Lisa Shanks
- Molecular and Cellular Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Chance Parkinson
- Molecular and Cellular Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Isabel Alvarado-Cruz
- Cellular and Molecular Medicine, University of Arizona College of Medicine, Tucson, AZ, 85724, USA
| | - Joann B Sweasy
- Cellular and Molecular Medicine, University of Arizona College of Medicine, Tucson, AZ, 85724, USA
- University of Arizona Cancer Center, Tucson, AZ, 85724, USA
- Fred and Pamela Buffett Cancer Center and Eppley Institute for Cancer Research, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Andrew L Paek
- Molecular and Cellular Biology, University of Arizona, Tucson, AZ, 85721, USA.
- Program in Applied Mathematics, University of Arizona, Tucson, AZ, 85721, USA.
- University of Arizona Cancer Center, Tucson, AZ, 85724, USA.
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45
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Swindell WR. Meta-analysis of differential gene expression in lower motor neurons isolated by laser capture microdissection from post-mortem ALS spinal cords. Front Genet 2024; 15:1385114. [PMID: 38689650 PMCID: PMC11059082 DOI: 10.3389/fgene.2024.1385114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Introduction ALS is a fatal neurodegenerative disease for which underlying mechanisms are incompletely understood. The motor neuron is a central player in ALS pathogenesis but different transcriptome signatures have been derived from bulk analysis of post-mortem tissue and iPSC-derived motor neurons (iPSC-MNs). Methods This study performed a meta-analysis of six gene expression studies (microarray and RNA-seq) in which laser capture microdissection (LCM) was used to isolate lower motor neurons from post-mortem spinal cords of ALS and control (CTL) subjects. Differentially expressed genes (DEGs) with consistent ALS versus CTL expression differences across studies were identified. Results The analysis identified 222 ALS-increased DEGs (FDR <0.10, SMD >0.80) and 278 ALS-decreased DEGs (FDR <0.10, SMD < -0.80). ALS-increased DEGs were linked to PI3K-AKT signaling, innate immunity, inflammation, motor neuron differentiation and extracellular matrix. ALS-decreased DEGs were associated with the ubiquitin-proteosome system, microtubules, axon growth, RNA-binding proteins and synaptic membrane. ALS-decreased DEG mRNAs frequently interacted with RNA-binding proteins (e.g., FUS, HuR). The complete set of DEGs (increased and decreased) overlapped significantly with genes near ALS-associated SNP loci (p < 0.01). Transcription factor target motifs with increased proximity to ALS-increased DEGs were identified, most notably DNA elements predicted to interact with forkhead transcription factors (e.g., FOXP1) and motor neuron and pancreas homeobox 1 (MNX1). Some of these DNA elements overlie ALS-associated SNPs within known enhancers and are predicted to have genotype-dependent MNX1 interactions. DEGs were compared to those identified from SOD1-G93A mice and bulk spinal cord segments or iPSC-MNs from ALS patients. There was good correspondence with transcriptome changes from SOD1-G93A mice (r ≤ 0.408) but most DEGs were not differentially expressed in bulk spinal cords or iPSC-MNs and transcriptome-wide effect size correlations were weak (bulk tissue: r ≤ 0.207, iPSC-MN: r ≤ 0.037). Conclusion This study defines a robust transcriptome signature from LCM-based motor neuron studies of post-mortem tissue from ALS and CTL subjects. This signature differs from those obtained from analysis of bulk spinal cord segments and iPSC-MNs. Results provide insight into mechanisms underlying gene dysregulation in ALS and highlight connections between these mechanisms, ALS genetics, and motor neuron biology.
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Affiliation(s)
- William R. Swindell
- Department of Internal Medicine, Division of Hospital Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States
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Ribarič S. The Contribution of Type 2 Diabetes to Parkinson's Disease Aetiology. Int J Mol Sci 2024; 25:4358. [PMID: 38673943 PMCID: PMC11050090 DOI: 10.3390/ijms25084358] [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: 02/29/2024] [Revised: 03/29/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Type 2 diabetes (T2D) and Parkinson's disease (PD) are chronic disorders that have a significant health impact on a global scale. Epidemiological, preclinical, and clinical research underpins the assumption that insulin resistance and chronic inflammation contribute to the overlapping aetiologies of T2D and PD. This narrative review summarises the recent evidence on the contribution of T2D to the initiation and progression of PD brain pathology. It also briefly discusses the rationale and potential of alternative pharmacological interventions for PD treatment.
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Affiliation(s)
- Samo Ribarič
- Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
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47
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Yao Q, Long C, Yi P, Zhang G, Wan W, Rao X, Ying J, Liang W, Hua F. C/EBPβ: A transcription factor associated with the irreversible progression of Alzheimer's disease. CNS Neurosci Ther 2024; 30:e14721. [PMID: 38644578 PMCID: PMC11033503 DOI: 10.1111/cns.14721] [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: 11/15/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a neurodegenerative disorder distinguished by a swift cognitive deterioration accompanied by distinctive pathological hallmarks such as extracellular Aβ (β-amyloid) peptides, neuronal neurofibrillary tangles (NFTs), sustained neuroinflammation, and synaptic degeneration. The elevated frequency of AD cases and its proclivity to manifest at a younger age present a pressing challenge in the quest for novel therapeutic interventions. Numerous investigations have substantiated the involvement of C/EBPβ in the progression of AD pathology, thus indicating its potential as a therapeutic target for AD treatment. AIMS Several studies have demonstrated an elevation in the expression level of C/EBPβ among individuals afflicted with AD. Consequently, this review predominantly delves into the association between C/EBPβ expression and the pathological progression of Alzheimer's disease, elucidating its underlying molecular mechanism, and pointing out the possibility that C/EBPβ can be a new therapeutic target for AD. METHODS A systematic literature search was performed across multiple databases, including PubMed, Google Scholar, and so on, utilizing predetermined keywords and MeSH terms, without temporal constraints. The inclusion criteria encompassed diverse study designs, such as experimental, case-control, and cohort studies, restricted to publications in the English language, while conference abstracts and unpublished sources were excluded. RESULTS Overexpression of C/EBPβ exacerbates the pathological features of AD, primarily by promoting neuroinflammation and mediating the transcriptional regulation of key molecular pathways, including δ-secretase, apolipoprotein E4 (APOE4), acidic leucine-rich nuclear phosphoprotein-32A (ANP32A), transient receptor potential channel 1 (TRPC1), and Forkhead BoxO (FOXO). DISCUSSION The correlation between overexpression of C/EBPβ and the pathological development of AD, along with its molecular mechanisms, is evident. Investigating the pathways through which C/EBPβ regulates the development of AD reveals numerous multiple vicious cycle pathways exacerbating the pathological progression of the disease. Furthermore, the exacerbation of pathological progression due to C/EBPβ overexpression and its molecular mechanism is not limited to AD but also extends to other neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), Parkinson's disease (PD), and multiple sclerosis (MS). CONCLUSION The overexpression of C/EBPβ accelerates the irreversible progression of AD pathophysiology. Additionally, C/EBPβ plays a crucial role in mediating multiple pathways linked to AD pathology, some of which engender vicious cycles, leading to the establishment of feedback mechanisms. To sum up, targeting C/EBPβ could hold promise as a therapeutic strategy not only for AD but also for other degenerative diseases.
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Affiliation(s)
- Qing Yao
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Chubing Long
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Pengcheng Yi
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Guangyong Zhang
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Wei Wan
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Xiuqin Rao
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Jun Ying
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
| | - Weidong Liang
- Department of AnesthesiologyThe First Affiliated Hospital of Gannan Medical UniversityGanzhouJiangxi ProvinceChina
| | - Fuzhou Hua
- Department of AnesthesiologyThe Second Affiliated Hospital of Nanchang UniversityNanchang CityJiangxi ProvinceChina
- Key Laboratory of Anesthesiology of Jiangxi ProvinceNanchang CityJiangxi ProvinceChina
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Csergeová L, Krbušek D, Janoštiak R. CIP/KIP and INK4 families as hostages of oncogenic signaling. Cell Div 2024; 19:11. [PMID: 38561743 PMCID: PMC10985988 DOI: 10.1186/s13008-024-00115-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024] Open
Abstract
CIP/KIP and INK4 families of Cyclin-dependent kinase inhibitors (CKIs) are well-established cell cycle regulatory proteins whose canonical function is binding to Cyclin-CDK complexes and altering their function. Initial experiments showed that these proteins negatively regulate cell cycle progression and thus are tumor suppressors in the context of molecular oncology. However, expanded research into the functions of these proteins showed that most of them have non-canonical functions, both cell cycle-dependent and independent, and can even act as tumor enhancers depending on their posttranslational modifications, subcellular localization, and cell state context. This review aims to provide an overview of canonical as well as non-canonical functions of CIP/KIP and INK4 families of CKIs, discuss the potential avenues to promote their tumor suppressor functions instead of tumor enhancing ones, and how they could be utilized to design improved treatment regimens for cancer patients.
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Affiliation(s)
- Lucia Csergeová
- BIOCEV-First Faculty of Medicine, Charles University, Prague, Czechia
| | - David Krbušek
- BIOCEV-First Faculty of Medicine, Charles University, Prague, Czechia
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Feng M, Gao B, Ruiz D, Garcia LR, Sun Q. Bacterial vitamin B6 is required for post-embryonic development in C. elegans. Commun Biol 2024; 7:367. [PMID: 38532074 PMCID: PMC10966028 DOI: 10.1038/s42003-024-05992-2] [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: 07/17/2023] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
Nutritional intake influences animal growth, reproductive capacity, and survival of animals. Under nutrition deficiency, animal developmental arrest occurs as an adaptive strategy to survive. However, the nutritional basis and the underlying nutrient sensing mechanism essential for animal regrowth after developmental arrest remain to be explored. In Caenorhabditis elegans, larvae undergo early developmental arrest are stress resistant, and they require certain nutrients to recover postembryonic development. Here, we investigated the developmental arrest in C. elegans feeding on Lactiplantibacillus plantarum, and the rescue of the diapause state with trace supplementation of Escherichia coli. We performed a genome-wide screen using 3983 individual gene deletion E. coli mutants and identified E. coli genes that are indispensable for C. elegans larval growth on originally not nutritionally sufficient bacteria L. plantarum. Among these crucial genes, we confirmed E. coli pdxH, and the downstream metabolite pyridoxal 5-P (PLP, Vitamin B6) as important nutritional factors for C. elegans postembryonic development. Transcriptome results suggest that bacterial pdxH affects host development by coordinating host metabolic processes and PLP binding. Additionally, the developmental arrest induced by the L. plantarum diet in worm does not depend on the activation of FoxO/DAF-16. Altogether, these results highlight the role of microbial metabolite PLP as a crucial cofactor to restore postembryonic development in C. elegans.
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Affiliation(s)
- Min Feng
- Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Baizhen Gao
- Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Daniela Ruiz
- Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Luis Rene Garcia
- Department of Biology, Texas A&M University, College Station, TX, USA
| | - Qing Sun
- Department of Chemical Engineering, Texas A&M University, College Station, TX, USA.
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50
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Cui Y, Wang L, Liang W, Huang L, Zhuang S, Shi H, Xu N, Hu J. Identification and Validation of the Pyroptosis-Related Hub Gene Signature and the Associated Regulation Axis in Diabetic Keratopathy. J Diabetes Res 2024; 2024:2920694. [PMID: 38529047 PMCID: PMC10963115 DOI: 10.1155/2024/2920694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/26/2024] [Accepted: 02/19/2024] [Indexed: 03/27/2024] Open
Abstract
Background Diabetic keratopathy (DK) poses a significant challenge in diabetes mellitus, yet its molecular pathways and effective treatments remain elusive. The aim of our research was to explore the pyroptosis-related genes in the corneal epithelium of the streptozocin-induced diabetic rats. Methods After sixteen weeks of streptozocin intraperitoneal injection, corneal epithelium from three diabetic rats and three normal groups underwent whole-transcriptome sequencing. An integrated bioinformatics pipeline, including differentially expressed gene (DEG) identification, enrichment analysis, protein-protein interaction (PPI) network, coexpression, drug prediction, and immune deconvolution analyses, identified hub genes and key drivers in DK pathogenesis. These hub genes were subsequently validated in vivo through RT-qPCR. Results A total of 459 DEGs were screened out from the diabetic group and nondiabetic controls. Gene Set Enrichment Analysis highlighted significant enrichment of the NOD-like receptor, Toll-like receptor, and NF-kappa B signaling pathways. Intersection of DEGs and pyroptosis-related datasets showed 33 differentially expressed pyroptosis-related genes (DEPRGs) associated with pathways such as IL-17, NOD-like receptor, TNF, and Toll-like receptor signaling. A competing endogenous RNA network comprising 16 DEPRGs, 22 lncRNAs, 13 miRNAs, and 3 circRNAs was constructed. After PPI network, five hub genes (Nfkb1, Casp8, Traf6, Ptgs2, and Il18) were identified as upregulated in the diabetic group, and their expression was validated by RT-qPCR in streptozocin-induced rats. Immune infiltration characterization showed that diabetic corneas owned a higher proportion of resting mast cells, activated NK cells, and memory-resting CD4 T cells. Finally, several small compounds including all-trans-retinoic acid, Chaihu Shugan San, dexamethasone, and resveratrol were suggested as potential therapies targeting these hub genes for DK. Conclusions The identified and validated hub genes, Nfkb1, Casp8, Traf6, Ptgs2, and Il18, may play crucial roles in DK pathogenesis and serve as therapeutic targets.
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Affiliation(s)
- Yi Cui
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27101, USA
| | - Li Wang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Wentao Liang
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27101, USA
| | - Li Huang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Shuting Zhuang
- College of Integrated Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Hong Shi
- College of Integrated Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Nuo Xu
- Department of Ophthalmology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jianzhang Hu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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