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Liu Y, Li C, Li Y, Zhang S, Zhang N, Bian X, Tan S. Ligand-based pharmacophore modelling, structure optimisation, and biological evaluation for the identification of 2-heteroarylthio- N-arylacetamides as novel HSP90 C-terminal inhibitors. J Enzyme Inhib Med Chem 2024; 39:2290912. [PMID: 38083866 DOI: 10.1080/14756366.2023.2290912] [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: 09/12/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Targeting Heat shock protein 90 (HSP90) C-terminus is an important strategy to develop HSP90 inhibitors without inducing heat shock response. The development of C-terminal inhibitors, however, is hampered by a lack of understanding regarding the interaction between the HSP90 C-terminus and the present inhibitors. We collected seven classical and structurally diverse HSP90 C-terminal inhibitors and constructed a ligand-based pharmacophore model. The subsequent virtual screening and structural optimisation led to the identification of 2-heteroarylthio-N-arylacetamides as novel HSP90 C-terminal inhibitors. 9 and 27 exhibited strong antitumour activity in vitro by inhibiting proliferation and inducing apoptosis in multiple cancer cell lines. These compounds disrupted the interaction between HSP90 C-terminus and peptidylprolyl isomerase D, exerting a stronger inhibitory effect than novobiocin. 27 significantly induced the degradation of HSP90 clients without triggering heat shock response. In an in vivo study using 4T1 mice breast cancer models, 9 showed a potent antitumour effect without obvious toxicity.
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Affiliation(s)
- Yajun Liu
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Chenyao Li
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Yajing Li
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Shuming Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Ning Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xiaobo Bian
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shutao Tan
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
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2
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Li GH, Miao Y, Chen H, Xue MF, Wang JY, Zhang JW, Yi ZF, Sun ZL. The small-molecule drug homoharringtonine targets HSF1 to suppress pancreatic cancer progression. Am J Cancer Res 2024; 14:2072-2087. [PMID: 38859866 PMCID: PMC11162665 DOI: 10.62347/xfjh3424] [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: 01/10/2024] [Accepted: 04/21/2024] [Indexed: 06/12/2024] Open
Abstract
Heat shock factor 1 (HSF1), an essential transcription factor for stress response, is exploited by various tumors to facilitate their initiation, progression, invasion, and migration. Amplification of HSF1 is widely regarded as an indicator in predicting cancer severity, the likelihood of treatment failure and reduced patient survival. Notably, HSF1 is markedly amplified in 40% of pancreatic cancer (PC), which typically have limited treatment options. HSF1 has been proven to be a promising therapeutic target for multiple cancers. However, a direct small molecule HSF1 inhibitor with sufficient bioactivity and reliable safety has not been developed clinically. In this study, we successfully established a high-throughput screening system utilizing luciferase reporter assay specifically designed for HSF1, which leads to the discovery of a potent small molecule inhibitor targeting HSF1. Homoharringtonine (HHT) selectively inhibited PC cell viability with high HSF1 expression and induced a markedly stronger tumor regression effect in the subcutaneous xenograft model than the comparator drug KRIBB11, known for its direct action on HSF1. Moreover, HHT shows promise in countering the resistance encountered with HSP90 inhibitors, which have been observed to increase heat shock response intensity in clinical trials. Mechanistically, HHT directly bound to HSF1, suppressing its expression and thereby inhibiting transcription of HSF1 target genes. In conclusion, our work presents a preclinical discovery and validation for HHT as a HSF1 inhibitor for PC treatment.
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Affiliation(s)
- Gui-Hong Li
- School of Pharmaceutical Sciences, Southern Medical UniversityGuangzhou 510515, Guangdong, P. R. China
- Affiliated Fengxian Hospital, Southern Medical UniversityShanghai 201499, P. R. China
| | - Ying Miao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghai 200241, P. R. China
| | - Huang Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghai 200241, P. R. China
| | - Meng-Fei Xue
- Affiliated Fengxian Hospital, Southern Medical UniversityShanghai 201499, P. R. China
| | - Jia-Yu Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghai 200241, P. R. China
| | - Jing-Wen Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghai 200241, P. R. China
| | - Zheng-Fang Yi
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghai 200241, P. R. China
| | - Zhen-Liang Sun
- Affiliated Fengxian Hospital, Southern Medical UniversityShanghai 201499, P. R. China
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Li L, Wang YW, Chang X, Chen JL, Wang M, Zhu JQ, Li JF, Ren LJ, Dai XY, Yan L, Fan XC, Song Q, Zhu JB, Chen JK, Xu SG. DNAJA1‑knockout alleviates heat stroke‑induced endothelial barrier disruption via improving thermal tolerance and suppressing the MLCK‑MLC signaling pathway. Mol Med Rep 2024; 29:87. [PMID: 38551163 PMCID: PMC10995657 DOI: 10.3892/mmr.2024.13211] [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: 09/06/2023] [Accepted: 03/04/2024] [Indexed: 04/02/2024] Open
Abstract
Endothelial barrier disruption plays a key role in the pathophysiology of heat stroke (HS). Knockout of DNAJA1 (DNAJA1‑KO) is thought to be protective against HS based on a genome‑wide CRISPR‑Cas9 screen experiment. The present study aimed to illustrate the function of DNAJA1‑KO against HS in human umbilical vein endothelial cells. DNAJA1‑KO cells were infected using a lentivirus to investigate the role of DNAJA1‑KO in HS‑induced endothelial barrier disruption. It was shown that DNAJA1‑KO could ameliorate decreased cell viability and increased cell injury, according to the results of Cell Counting Kit‑8 and lactate dehydrogenase assays. Moreover, HS‑induced endothelial cell apoptosis was inhibited by DNAJA1‑KO, as indicated by Annexin V‑FITC/PI staining and cleaved‑caspase‑3 expression using flow cytometry and western blotting, respectively. Furthermore, the endothelial barrier function, as measured by transepithelial electrical resistance and FITC‑Dextran, was sustained during HS. DNAJA1‑KO was not found to have a significant effect on the expression and distribution of cell junction proteins under normal conditions without HS. However, DNAJA1‑KO could effectively protect the HS‑induced decrease in the expression and distribution of cell junction proteins, including zonula occludens‑1, claudin‑5, junctional adhesion molecule A and occludin. A total of 4,394 proteins were identified using proteomic analysis, of which 102 differentially expressed proteins (DEPs) were activated in HS‑induced wild‑type cells and inhibited by DNAJA1‑KO. DEPs were investigated by enrichment analysis, which demonstrated significant enrichment in the 'calcium signaling pathway' and associations with vascular‑barrier regulation. Furthermore, the 'myosin light‑chain kinase (MLCK)‑MLC signaling pathway' was proven to be activated by HS and inhibited by DNAJA1‑KO, as expected. Moreover, DNAJA1‑KO mice and a HS mouse model were established to demonstrate the protective effects on endothelial barrier in vivo. In conclusion, the results of the present study suggested that DNAJA1‑KO alleviates HS‑induced endothelial barrier disruption by improving thermal tolerance and suppressing the MLCK‑MLC signaling pathway.
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Affiliation(s)
- Lei Li
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
- Department of Emergency, The Second Naval Hospital of Southern Theater Command of The People's Liberation Army, Sanya, Hainan 572022, P.R. China
- Heatstroke Treatment and Research Center, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, Hainan 572022, P.R. China
| | - Ya-Wei Wang
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
- Department of Orthopedics Trauma, Changhai Hospital, Shanghai 200433, P.R. China
| | - Xin Chang
- Department of Gastroenterology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Jue-Lin Chen
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Man Wang
- Department of Rehabilitation, Changhai Hospital, Shanghai 200433, P.R. China
| | - Jia-Qi Zhu
- Department of Cardiology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Jin-Feng Li
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Li-Jun Ren
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Xiao-Yu Dai
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Xin-Chen Fan
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, P.R. China
| | - Qing Song
- Heatstroke Treatment and Research Center, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, Hainan 572022, P.R. China
- Department of Critical Care Medicine, First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100039, P.R. China
- Department of Critical Care Medicine, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, Hainan 572022, P.R. China
| | - Jiang-Bo Zhu
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Ji-Kuai Chen
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, P.R. China
| | - Shuo-Gui Xu
- Department of Emergency, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
- Department of Orthopedics Trauma, Changhai Hospital, Shanghai 200433, P.R. China
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Li RY, Guo L. Exercise in Diabetic Nephropathy: Protective Effects and Molecular Mechanism. Int J Mol Sci 2024; 25:3605. [PMID: 38612417 PMCID: PMC11012151 DOI: 10.3390/ijms25073605] [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: 02/15/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Diabetic nephropathy (DN) is a serious complication of diabetes, and its progression is influenced by factors like oxidative stress, inflammation, cell death, and fibrosis. Compared to drug treatment, exercise offers a cost-effective and low-risk approach to slowing down DN progression. Through multiple ways and mechanisms, exercise helps to control blood sugar and blood pressure and reduce serum creatinine and albuminuria, thereby alleviating kidney damage. This review explores the beneficial effects of exercise on DN improvement and highlights its potential mechanisms for ameliorating DN. In-depth understanding of the role and mechanism of exercise in improving DN would pave the way for formulating safe and effective exercise programs for the treatment and prevention of DN.
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Affiliation(s)
- Ruo-Ying Li
- School of Exercise and Health, Collaborative Innovation Center for Sports and Public Health, Shanghai University of Sport, Shanghai 200438, China;
- Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
- Key Laboratory of Exercise and Health Sciences of the Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
| | - Liang Guo
- School of Exercise and Health, Collaborative Innovation Center for Sports and Public Health, Shanghai University of Sport, Shanghai 200438, China;
- Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
- Key Laboratory of Exercise and Health Sciences of the Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
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Liang Y, Zhong Y, Xi Y, He L, Zhang H, Hu X, Gu H. Toxic effects of combined exposure to homoyessotoxin and nitrite on the survival, antioxidative responses, and apoptosis of the abalone Haliotis discus hannai. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116058. [PMID: 38301583 DOI: 10.1016/j.ecoenv.2024.116058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Homoyessotoxin (homo-YTX) and nitrite (NO2-N), released during harmful dinoflagellate cell lysis adversely affect abalones. However, their toxicity mechanisms in shellfish remain unclear. This study investigated the economic abalone species Haliotis discus hannai exposed to varying concentrations of homo-YTX (0, 2, 5, and 10 µg L-1) and NO2-N (0, 3, and 6 mg L-1) on the basis of their 12 h LC50 values (5.05 µg L-1 and 4.25 mg L-1, respectively) and the environmentally relevant dissolved concentrations during severe dinoflagellate blooms, including mixtures. The test abalones were exposed to homo-YTX and NO2-N for 12 h. The mortality rate (D), reactive oxygen species (ROS) levels, antioxidant defense capabilities, and expression levels of antioxidant-related, Hsp-related, and apoptosis-related genes in abalone gills were assessed. Results showed that the combined exposure to homo-YTX and NO2-N increased the D and ROS levels and upregulated B-cell lymphoma-2 (BCL2)-associated X (BAX) and caspase3 (CASP3) expression levels while reducing glutathione peroxidase (GPx) activity and GPx, CuZnSOD, and BCL2 expression levels. High concentrations of homo-YTX (10 µg L-1) and NO2-N (6 mg L-1) solutions and the combinations of these toxicants inhibited the activities of superoxide dismutase (SOD) and catalase (CAT) and downregulated the expression levels of MnSOD, CAT, Hsp70, and Hsp90. The ROS levels were negatively correlated with the activities of SOD, CAT, and GPx and the expression levels of MnSOD, CuZnSOD, CAT, GPx, Hsp70, Hsp90, and BCL2. These results suggest that homo-YTX, in conjunction with NO2-N, induces oxidative stress, disrupts antioxidant defense systems, and triggers caspase-dependent apoptosis in the gills of abalone. ROS-mediated antioxidative and heat-shock responses and apoptosis emerge as potential toxicity mechanisms affecting the survival of H. discus hannai due to homo-YTX and NO2-N exposure.
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Affiliation(s)
- Ye Liang
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China.
| | - Yuxin Zhong
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China
| | - Yu Xi
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China
| | - Liangyi He
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China
| | - Heng Zhang
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China
| | - Xiang Hu
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China
| | - Haifeng Gu
- School of Marine Sciences, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, PR China; Third Institute of Oceanography, Ministry of Natural Resources, No. 178 Daxue Road, Xiamen 361005, PR China
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Huang Y, Pan W, Bao H, Sun X, Xu C, Ma J. HSF1 Increases EOGT-Mediated Glycosylation of Notch1 to Promote IL-1β-Induced Inflammatory Injury of Chondrocytes. Cartilage 2024:19476035241229211. [PMID: 38366389 DOI: 10.1177/19476035241229211] [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] [Indexed: 02/18/2024] Open
Abstract
OBJECTIVE Osteoarthritis (OA) is the most common arthritic disease in humans. Nevertheless, the pathogenic mechanism of OA remains unclear. This study aimed to explore that heat-shock transcription factor 1 (HSF1) facilitated interleukin-1 beta (IL-1β) chondrocyte injury by increasing Notch1 O-linked N-acetylglucosamine (O-GlcNAc) modification level. DESIGN Human chondrocytes were incubated with 5 ng/ml interleukin-1 beta (IL-1β) for 24 h to establish OA cell model. The messenger RNA (mRNA) or protein expressions were assessed using reverse transcription-quantitative polymerase chain reaction, western blot, or immunofluorescence. Chondrocyte viability was examined by Cell Counting Kit-8 assay. Enzyme-linked immunosorbent assay was employed to detect the secretion levels of interleukin-6 (IL-6) and interleukin-8 (IL-8). Immunoprecipitation was adopted to detect Notch1 O-GlcNAc modification level. The interaction between HSF1 and epidermal growth factor-like (EGF) domain-specific O-GlcNAc transferase (EOGT) promoter was analyzed by dual-luciferase reporter gene and chromatin immunoprecipitation assays. RESULTS Herein, our results demonstrated that HSF1, EOGT, Notch1, and Notch1 intracellular domain (NICD1) expressions in chondrocytes were markedly increased by IL-1β stimulation. EOGT elevated Notch1 expression in IL-1β-treated chondrocytes by increasing Notch1 O-GlcNAc modification level. EOGT silencing reduced IL-1β-induced chondrocyte inflammatory injury. In addition, HSF1 knockdown relieved IL-1β-induced chondrocyte inflammatory injury. Molecular interaction experiment proved that HSF1 transcriptionally activated EOGT expression in IL-1β-treated chondrocytes. CONCLUSIONS HSF1 promoted IL-1β-induced inflammatory injury in chondrocytes by increasing EOGT-mediated glycosylation of Notch1.
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Affiliation(s)
- Yuanchi Huang
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Wenjie Pan
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Huanli Bao
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Xiangxiang Sun
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Chao Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Jianbing Ma
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, P.R. China
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Wei H, Zhang Y, Jia Y, Chen X, Niu T, Chatterjee A, He P, Hou G. Heat shock protein 90: biological functions, diseases, and therapeutic targets. MedComm (Beijing) 2024; 5:e470. [PMID: 38283176 PMCID: PMC10811298 DOI: 10.1002/mco2.470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/30/2024] Open
Abstract
Heat shock protein 90 (Hsp90) is a predominant member among Heat shock proteins (HSPs), playing a central role in cellular protection and maintenance by aiding in the folding, stabilization, and modification of diverse protein substrates. It collaborates with various co-chaperones to manage ATPase-driven conformational changes in its dimer during client protein processing. Hsp90 is critical in cellular function, supporting the proper operation of numerous proteins, many of which are linked to diseases such as cancer, Alzheimer's, neurodegenerative conditions, and infectious diseases. Recognizing the significance of these client proteins across diverse diseases, there is a growing interest in targeting Hsp90 and its co-chaperones for potential therapeutic strategies. This review described biological background of HSPs and the structural characteristics of HSP90. Additionally, it discusses the regulatory role of heat shock factor-1 (HSF-1) in modulating HSP90 and sheds light on the dynamic chaperone cycle of HSP90. Furthermore, the review discusses the specific contributions of HSP90 in various disease contexts, especially in cancer. It also summarizes HSP90 inhibitors for cancer treatment, offering a thoughtful analysis of their strengths and limitations. These advancements in research expand our understanding of HSP90 and open up new avenues for considering HSP90 as a promising target for therapeutic intervention in a range of diseases.
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Affiliation(s)
- Huiyun Wei
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Yingying Zhang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Yilin Jia
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Xunan Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Tengda Niu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Aniruddha Chatterjee
- Department of PathologyDunedin School of MedicineUniversity of OtagoDunedinNew Zealand
| | - Pengxing He
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Guiqin Hou
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
- Department of PathologyDunedin School of MedicineUniversity of OtagoDunedinNew Zealand
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Ma XJ, Sun Z, Wang YP, Yao XP, Luo TT, Bao YL, Ainiwaer D, Zhang T, Zhu H, Zhang Y, Hu FM, Yu WY. Heat shock induces HuR-dependent MKP-1 posttranslational regulation through the p38 MAPK signaling cascade. Tissue Cell 2024; 86:102262. [PMID: 37984224 DOI: 10.1016/j.tice.2023.102262] [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: 07/03/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Previous studies demonstrated that phosphatases play a pivotal role in modulating inflammation-associated signal transduction, particularly in the context of heat shock, where Mitogen-Activated Protein Kinase Phosphatase-1 (MKP-1) appears to have a central role. Recently, Human Antigen R (HuR) has also been identified as a factor that enhances stress-response protein MKP-1 levels. Consequently, we have directed our interest towards elucidating the mechanisms by which heat shock induces MKP-1 mRNA stabilization, dependent on HuR via the p38 MAPK Signaling Cascade. In this study, we subjected Mouse Embryonic Fibroblast (Mef) cells to heat shock treatment, resulting in a potent stabilization MKP-1 mRNA. The RNA-binding protein HuR, known to influence mRNA, was observed to bind to the MKP-1 AU-rich 3 ´untranslated region. Transfection of p38 wild-type Mef cells with a flag-HuR plasmid resulted in a significant increase in MKP-1 mRNA stability. Interestingly, transfection of the siRNA for HuR into Mef cells resulted in diminished MKP-1 mRNA stability following heat shock, inhibition of p38 MAPK activity effectively curtailed heat shock-mediated MKP-1 mRNA stability. Immunofluorescence analyses further revealed that the translocation of HuR was contingent on p38 MAPK Signaling Cascade. Collectively, these findings underscore the regulatory role of heat shock in MKP-1 gene expression at posttranscriptional levels. The mechanisms underlying the observed increased MKP-1 mRNA stability are shown to be partially dependent on HuR through the p38 MAPK Signaling Cascade.
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Affiliation(s)
- Xiao-Juan Ma
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Zhan Sun
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Yi-Ping Wang
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Xue-Ping Yao
- Department of Functional Center,College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Ting-Ting Luo
- Hematological Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Ya-Li Bao
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Dina Ainiwaer
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Tian Zhang
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Hengyi Zhu
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Yan Zhang
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Fei-Ming Hu
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China
| | - Wen-Yan Yu
- Department of Pathophysiology, College of Basic Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830000, China; Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Urumqi, Xinjiang 830000, China.
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Conn BN, Lieberman JA, Chatman P, Cotton K, Essandoh MA, Ebqa’ai M, Nelson TL, Wozniak KL. Antifungal activity of eumelanin-inspired indoylenepheyleneethynylene against Cryptococcus neoformans. Front Microbiol 2024; 14:1339303. [PMID: 38293553 PMCID: PMC10826398 DOI: 10.3389/fmicb.2023.1339303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/19/2023] [Indexed: 02/01/2024] Open
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen that causes meningitis in >152,000 immunocompromised individuals annually, leading to 112,000 yearly deaths. The four classes of existing antifungal agents target plasma membrane sterols (ergosterol), nucleic acid synthesis, and cell wall synthesis. Existing drugs are not highly effective against Cryptococcus, and antifungal drug resistance is an increasing problem. A novel antimicrobial compound, a eumelanin-inspired indoylenepheyleneethynylene, EIPE-1, was synthesized and has antimicrobial activity against Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MSRA), but not towards Gram-negative organisms. Based on EIPE-1's antibacterial activity, we hypothesized that EIPE-1 could have antifungal activity. For these studies, we tested EIPE-1 against C. neoformans strain H99 and 6 additional cryptococcal clinical isolates. We examined antifungal activity, cytotoxicity, effects on fungal gene expression, and mechanism of action of EIPE-1. Results showed that EIPE-1 has fungicidal effects on seven cryptococcal strains with MICs ranging from 1.56 to 3.125 μg/mL depending on the strain, and it is non-toxic to mammalian cells. We conducted scanning and transmission electron microscopy on the exposed cells to examine structural changes to the organism following EIPE-1 treatment. Cells exposed displayed structural changes to their cell wall and membranes, with internal contents leaking out of the cells. To understand the effect of EIPE-1 on fungal gene expression, RNA sequencing was conducted. Results showed that EIPE-1 affects several processes involved stress response, ergosterol biosynthesis, capsule biosynthesis, and cell wall attachment and remodeling. Therefore, our studies demonstrate that EIPE-1 has antifungal activity against C. neoformans, which affects both cellular structure and gene expression of multiple fungal pathways involved in cell membrane stability and viability.
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Affiliation(s)
- Brittney N. Conn
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, United States
| | - Jacob A. Lieberman
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, United States
| | - Priscilla Chatman
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, United States
| | - Kaitlyn Cotton
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, United States
| | - Martha A. Essandoh
- Department of Chemistry, Oklahoma State University, Stillwater, OK, United States
| | - Mohammad Ebqa’ai
- Department of Chemistry, Oklahoma State University, Stillwater, OK, United States
| | - Toby L. Nelson
- Department of Chemistry, Oklahoma State University, Stillwater, OK, United States
| | - Karen L. Wozniak
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, United States
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10
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Hua Z, Zhang W, Han L, Zhang Y, Jiang X, Ding C. Kaempferol exerts antioxidant effects in age-related diminished ovarian reserve by regulating the HSP90/NRF2 pathway. Chem Biol Drug Des 2024; 103:e14385. [PMID: 37914430 DOI: 10.1111/cbdd.14385] [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: 06/19/2023] [Revised: 10/05/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023]
Abstract
Kaempferol is the active ingredient of Er-Xian decoction (EXD), a traditional Chinese medicine formula used clinically to treat ovarian dysfunction, but the mechanism of kaempferol relieving age-related diminished ovarian reserve (AR-DOR) is still unclear. In this study, 36 volunteers and 78 DOR patients (37 patients with EXD treatment) were enrolled in the clinical research. Meanwhile, 32-week-old female mice were used to establish the AR-DOR model, and these model mice were intragastrically administered with 100 mg/kg kaempferol in the presence or absence of 200 mg/kg geranylgeranylacetone (GGA) or 1 mg/kg geldanamycin (GDA). The effects of kaempferol on serum hormone levels and oxidative stress-related indexes were detected by enzyme-linked immunosorbent assay. Antral follicle count (AFC) was determined by hematoxylin-eosin staining. The protein levels of HSP90 and nuclear factor erythroid 2-related factor 2 (NRF2) were assayed by Western blot. This study displayed that the serum anti-Mullerian hormone (AMH) level in DOR patients with EXD treatment was higher than that in DOR patients without EXD treatment. Kaempferol treatment reversed the low levels of AMH, estradiol (E2), AFC, superoxide dismutase (SOD), and catalase (CAT), as well as the high levels of follicle-stimulating hormone (FSH), reactive oxygen species (ROS), and malonaldehyde (MDA). The results showed that HSP90 was predicted to have high affinity with kaempferol, and its expression was inhibited by kaempferol, while the expression of NRF2, the target of HSP90, was up-regulated by kaempferol. However, the above effects of kaempferol were reversed by GGA. On the contrary, GDA enhanced the therapeutic effects of kaempferol on AR-DOR mice. Moreover, the treatment of kaempferol resulted in a reduction in the phosphorylation level of heat shock factor 1 (HSF1), the transcription factor associated with HSP90, and an increase in the phosphorylation level of Src, a client protein of HSP90. In summary, kaempferol exerts an antioxidant effect on AR-DOR by inhibiting HSP90 expression to up-regulate NRF2 expression. This study provides a theoretical basis for the clinical application of kaempferol in AR-DOR.
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Affiliation(s)
- Zhoujia Hua
- Department of Reproduction, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Wei Zhang
- Department of Reproduction, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Lin Han
- Department of Reproduction, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Yuwei Zhang
- Second Clinical Medical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuejuan Jiang
- Department of Reproduction, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Caifei Ding
- Department of Reproduction, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
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11
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Liao YT, Du XY, Wang M, Zheng CX, Li D, Chen CH, Li RT, Shao LD. A silicon-containing aryl/penta-1,4-dien-3-one/amine hybrid exhibits antiproliferative effects on breast cancer cells by targeting the HSP90 C-terminus without inducing heat-shock response. RSC Med Chem 2023; 14:2625-2639. [PMID: 38107168 PMCID: PMC10718586 DOI: 10.1039/d3md00431g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/11/2023] [Indexed: 12/19/2023] Open
Abstract
A pharmacophore-hybridized strategy based on previously reported HSP90 C-terminal inhibitors was utilized to prepare 32 aryl/penta-1,4-dien-3-one/amine hybrids. Among them, a silicon-containing compound 1z exhibited remarkable broad-spectrum antiproliferative effects on various human breast cancer cell lines. Through fluorescence polarization and AlphaScreen-based assays, we demonstrated that 1z specifically inhibited the HSP90 C-terminus without affecting HSP90 N-terminus. Furthermore, 1z effectively inhibited the HSP90 C-terminus without inducing heat-shock response (HSR), leading to the degradation of its client proteins HER2, pAKT, AKT, and CDK4, causing G1 arrest of MCF-7 and SKBr3 cells, and ultimately contributing to apoptosis of these cells through caspase-3, caspase-8, and caspase-9 activation. Additionally, the penta-1,4-dien-3-one linker in the hybrid, a large bulky lipophilic substitution in the aryl fragment at the 3'-site, and the presence of N-methylpiperazine as the amine fragment were identified as crucial factors that significantly contributed to the observed antiproliferative activity through structure-activity relationship (SAR) analysis. Lastly, we found that 1z exhibited superior thermostability compared to vibsanin B derivatives and good in vitro metabolic stability in simulated intestinal fluid, representing one of the few reported silicon-containing HSP90 C-terminal inhibitors.
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Affiliation(s)
- Yu-Ting Liao
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Xin-Ye Du
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
- Faculty of Life Science and Technology, Kunming University of Science and Technology Kunming 650500 China
| | - Mei Wang
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Chun-Xia Zheng
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Chuan-Huizi Chen
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology Kunming 650500 China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
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12
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Qiao H, Xu Q, Xu Y, Zhao Y, He N, Tang J, Zhao J, Liu Y. Molecular chaperones in stroke-induced immunosuppression. Neural Regen Res 2023; 18:2638-2644. [PMID: 37449602 DOI: 10.4103/1673-5374.373678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Stroke-induced immunosuppression is a process that leads to peripheral suppression of the immune system after a stroke and belongs to the central nervous system injury-induced immunosuppressive syndrome. Stroke-induced immunosuppression leads to increased susceptibility to post-stroke infections, such as urinary tract infections and stroke-associated pneumonia, worsening prognosis. Molecular chaperones are a large class of proteins that are able to maintain proteostasis by directing the folding of nascent polypeptide chains, refolding misfolded proteins, and targeting misfolded proteins for degradation. Various molecular chaperones have been shown to play roles in stroke-induced immunosuppression by modulating the activity of other molecular chaperones, cochaperones, and their associated pathways. This review summarizes the role of molecular chaperones in stroke-induced immunosuppression and discusses new approaches to restore host immune defense after stroke.
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Affiliation(s)
- Haoduo Qiao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Qing Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Yunfei Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Yao Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Nina He
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Jie Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Jie Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Ying Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
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13
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Venkatesh SR, Siddiqui R, Sandhu A, Ramani M, Houston IR, Watts JL, Singh V. Homeostatic control of stearoyl desaturase expression via patched-like receptor PTR-23 ensures the survival of C. elegans during heat stress. PLoS Genet 2023; 19:e1011067. [PMID: 38109437 PMCID: PMC10727360 DOI: 10.1371/journal.pgen.1011067] [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: 09/19/2023] [Accepted: 11/15/2023] [Indexed: 12/20/2023] Open
Abstract
Organismal responses to temperature fluctuations include an evolutionarily conserved cytosolic chaperone machinery as well as adaptive alterations in lipid constituents of cellular membranes. Using C. elegans as a model system, we asked whether adaptable lipid homeostasis is required for survival during physiologically relevant heat stress. By systematic analyses of lipid composition in worms during and before heat stress, we found that unsaturated fatty acids are reduced in heat-stressed animals. This is accompanied by the transcriptional downregulation of fatty acid desaturase enzymes encoded by fat-1, fat-3, fat-4, fat-5, fat-6, and fat-7 genes. Conversely, overexpression of the Δ9 desaturase FAT-7, responsible for the synthesis of PUFA precursor oleic acid, and supplementation of oleic acid causes accelerated death of worms during heat stress. Interestingly, heat stress causes permeability defects in the worm's cuticle. We show that fat-7 expression is reduced in the permeability defective collagen (PDC) mutant, dpy-10, known to have enhanced heat stress resistance (HSR). Further, we show that the HSR of dpy-10 animals is dependent on the upregulation of PTR-23, a patched-like receptor in the epidermis, and that PTR-23 downregulates the expression of fat-7. Consequently, abrogation of ptr-23 in wild type animals affects its survival during heat stress. This study provides evidence for the negative regulation of fatty acid desaturase expression in the soma of C. elegans via the non-canonical role of a patched receptor signaling component. Taken together, this constitutes a skin-gut axis for the regulation of lipid desaturation to promote the survival of worms during heat stress.
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Affiliation(s)
- Siddharth R Venkatesh
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Ritika Siddiqui
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Anjali Sandhu
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Malvika Ramani
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Isabel R Houston
- School of Molecular Biosciences and Center for Reproductive Biology, Washington State University, Pullman, Washington, United States of America
| | - Jennifer L Watts
- School of Molecular Biosciences and Center for Reproductive Biology, Washington State University, Pullman, Washington, United States of America
| | - Varsha Singh
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
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14
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Timofeev YS, Kiselev AR, Dzhioeva ON, Drapkina OM. Heat Shock Proteins (HSPs) and Cardiovascular Complications of Obesity: Searching for Potential Biomarkers. Curr Issues Mol Biol 2023; 45:9378-9389. [PMID: 38132434 PMCID: PMC10742314 DOI: 10.3390/cimb45120588] [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: 10/18/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Heat shock proteins (HSPs), a family of proteins that support cellular proteostasis and perform a protective function under various stress conditions, such as high temperature, intoxication, inflammation, or tissue hypoxia, constitute a promising group of possible biochemical markers for obesity and cardiovascular diseases. HSP27 is involved in essential cellular processes occurring in conditions of obesity and its cardiometabolic complications; it has protective properties, and its secretion may indicate a cellular response to stress. HSP40 plays a controversial role in the pathogenesis of obesity. HSP60 is involved in various pathological processes of the cardiovascular, immune, excretory, and nervous systems and is associated with obesity and concomitant diseases. The hypersecretion of HSP60 is associated with poor prognosis; hence, this protein may become a target for further research on obesity and its cardiovascular complications. According to most studies, intracellular HSP70 is an obesity-promoting factor, whereas extracellular HSP70 exhibited inconsistent dynamics across different patient groups and diagnoses. HSPs are involved in the pathogenesis of cardiovascular pathology. However, in the context of cardiovascular and metabolic pathology, these proteins require further investigation.
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Affiliation(s)
| | - Anton R. Kiselev
- National Medical Research Center for Therapy and Preventive Medicine, 101990 Moscow, Russia
| | | | - Oxana M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine, 101990 Moscow, Russia
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15
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Lin Y, Lin C, Cao Y, Chen Y. Caenorhabditis elegans as an in vivo model for the identification of natural antioxidants with anti-aging actions. Biomed Pharmacother 2023; 167:115594. [PMID: 37776641 DOI: 10.1016/j.biopha.2023.115594] [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: 07/12/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023] Open
Abstract
Natural antioxidants have recently emerged as a highly exciting and significant topic in anti-aging research. Diverse organism models present a viable protocol for future research. Notably, many breakthroughs on natural antioxidants have been achieved in the nematode Caenorhabditis elegans, an animal model frequently utilized for the study of aging research and anti-aging drugs in vivo. Due to the conservation of signaling pathways on oxidative stress resistance, lifespan regulation, and aging disease between C. elegans and multiple high-level organisms (humans), as well as the low and controllable cost of time and labor, it gradually develops into a trustworthy in vivo model for high-throughput screening and validation of natural antioxidants with anti-aging actions. First, information and models on free radicals and aging are presented in this review. We also describe indexes, detection methods, and molecular mechanisms for studying the in vivo antioxidant and anti-aging effects of natural antioxidants using C. elegans. It includes lifespan, physiological aging processes, oxidative stress levels, antioxidant enzyme activation, and anti-aging pathways. Furthermore, oxidative stress and healthspan improvement induced by natural antioxidants in humans and C. elegans are compared, to understand the potential and limitations of the screening model in preclinical studies. Finally, we emphasize that C. elegans is a useful model for exploring more natural antioxidant resources and uncovering the mechanisms underlying aging-related risk factors and diseases.
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Affiliation(s)
- Yugui Lin
- Microbiology Laboratory, Zhongshan Bo'ai Hospital, Southern Medical University, Zhongshan 528400, China; Department of Microbiology, Guangxi Medical University, Nanning 530021, China
| | - Chunxiu Lin
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510640, China; State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510640, China
| | - Yunjiao Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510640, China.
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16
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Lee J, Belal SA, Lin X, Park J, Shim K. Insect Peptide CopA3 Mitigates the Effects of Heat Stress on Porcine Muscle Satellite Cells. Animals (Basel) 2023; 13:3209. [PMID: 37893933 PMCID: PMC10603636 DOI: 10.3390/ani13203209] [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: 08/31/2023] [Revised: 10/05/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Heat stress inhibits cell proliferation as well as animal production. Here, we aimed to demonstrate that 9-mer disulfide dimer peptide (CopA3) supplementation stabilizes porcine muscle satellite cell (PMSC) proliferation and heat shock protein (HSP) expression at different temperatures. Therefore, we investigated the beneficial effects of CopA3 on PMSCs at three different temperatures (37, 39, and 41 °C). Based on temperature and CopA3 treatment, PMSCs were divided into six different groups including treatment and control groups for each temperature. Cell viability was highest with 10 µg/mL CopA3 and decreased as the concentration increased in a dose-dependent manner. CopA3 significantly increased the cell viability at all temperatures at 24 and 48 h. It significantly decreased apoptosis compared to that in the untreated groups. In addition, it decreased the apoptosis-related protein, Bcl-2-associated X (BAX), expression at 41 °C. Notably, temperature and CopA3 had no effects on the apoptosis-related protein, caspase 3. Expression levels of HSP40, HSP70, and HSP90 were significantly upregulated, whereas those of HSP47 and HSP60 were not affected by temperature changes. Except HSP90, CopA3 did not cause temperature-dependent changes in protein expression. Therefore, CopA3 promotes cell proliferation, inhibits apoptosis, and maintains stable HSP expression, thereby enhancing the heat-stress-tolerance capacity of PMSCs.
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Affiliation(s)
- Jeongeun Lee
- Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea;
| | - Shah Ahmed Belal
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju 54896, Republic of Korea;
| | - Xi Lin
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA;
| | - Jinryong Park
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
- 3D Tissue Culture Research Center, Konkuk University, Seoul 05029, Republic of Korea
| | - Kwanseob Shim
- Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea;
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju 54896, Republic of Korea;
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17
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Pan HY, Wan J. Serum HSF1 is upregulated in endometriosis patients and serves as a potential diagnostic biomarker. Kaohsiung J Med Sci 2023; 39:1045-1051. [PMID: 37409787 DOI: 10.1002/kjm2.12723] [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: 02/24/2023] [Revised: 05/31/2023] [Accepted: 06/04/2023] [Indexed: 07/07/2023] Open
Abstract
Endometriosis (EMS) is a prevalent gynecological condition lacking reliable diagnostic biomarkers. This prospective study aimed to analyze the potential of serum heat shock transcription factor 1 (HSF1) as a diagnostic marker for EMS. Clinical features of 92 EMS patients and 52 controls were recorded, revealing significant differences in dysmenorrhea, dyspareunia, pelvic pain, nulliparity, and CA125 levels. Serum HSF1 was upregulated in EMS patients, with higher levels in American Society for Reproductive Medicine (ASRM) III/IV than ASRM I/II. Receiver operating characteristic curve analysis demonstrated good diagnostic function for serum HSF1 (AUC: 0.857, sensitivity: 91.30%, specificity: 63.46%). Serum HSF1, dysmenorrhea, dyspareunia, and nulliparity were independent risk factors for EMS, while dysmenorrhea and serum HSF1 were independent risk factors for EMS severity. Additionally, the GSE25628 dataset was downloaded from the GEO database for differential analysis of gene expression. The HSF1 downstream target genes PTGES3, HSP90AA1, and HSPB1 showed significant differential expression in EMS, suggesting their involvement in the regulatory mechanism of HSF1 in EMS.
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Affiliation(s)
- Hui-Ying Pan
- Department of Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Jing Wan
- Department of Gynecology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
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18
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Zhang J, Liu L, Li Y, Huang Y, Xiao S, Deng Z, Zheng Z, Li J, Liang M, Xie G, Chen X, Deng Y, Tan W, Su H, Wu G, Cai C, Chen X, Zou F. HSP90 C-terminal domain inhibition promotes VDAC1 oligomerization via decreasing K274 mono-ubiquitination in Hepatocellular Carcinoma. Neoplasia 2023; 44:100935. [PMID: 37717471 PMCID: PMC10514081 DOI: 10.1016/j.neo.2023.100935] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/21/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Voltage-dependent anion-selective channel protein 1 (VDAC1) is the most abundant protein in the mitochondrial outer membrane and plays a crucial role in the control of hepatocellular carcinoma (HCC) progress. Our previous research found that cytosolic molecular chaperone heat shock protein 90 (Hsp90) interacted with VDAC1, but the effect of the C-terminal and N-terminal domains of Hsp90 on the formation of VDAC1 oligomers is unclear. In this study, we focused on the effect of the C-terminal domain of Hsp90 on VDAC1 oligomerization, ubiquitination, and VDAC1 channel activity. We found that Hsp90 C-terminal domain inhibitor Novobiocin promoted VDAC1 oligomerization, release of cytochrome c, and activated mitochondrial apoptosis pathway. Atomic coarse particle modeling simulation revealed C-terminal domain of Hsp90α stabilized VDAC1 monomers. The purified VDAC1 was reconstituted into a planar lipid bilayer, and electrophysiology experiments of patch clamp showed that the Hsp90 C-terminal inhibitor Novobiocin increased VDAC1 channel conductance via promoting VDAC1 oligomerization. The mitochondrial ubiquitination proteomics results showed that VDAC1 K274 mono-ubiquitination was significantly decreased upon Novobiocin treatment. Site-directed mutation of VDAC1 (K274R) weakened Hsp90α-VDAC1 interaction and increased VDAC1 oligomerization. Taken together, our results reveal that Hsp90 C-terminal domain inhibition promotes VDAC1 oligomerization and VDAC1 channel conductance by decreasing VDAC1 K274 mono- ubiquitination, which provides a new perspective for mitochondria-targeted therapy of HCC.
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Affiliation(s)
- Jinxin Zhang
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Lixia Liu
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yan Li
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yaling Huang
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Senbo Xiao
- Nanomechanical Lab (Nanomechanical Lab - NTNU) Department of Structural Engineering Norwegian University of Science and Technology Trondheim, Norway
| | - Zihao Deng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Zhenming Zheng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Jieyou Li
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Manfeng Liang
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Guantai Xie
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Xiao Chen
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yaotang Deng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Wenchong Tan
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Hairou Su
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Guibing Wu
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Chunqing Cai
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Xuemei Chen
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
| | - Fei Zou
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
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19
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Zou Y, Shi H, Liu N, Wang H, Song X, Liu B. Mechanistic insights into heat shock protein 27, a potential therapeutic target for cardiovascular diseases. Front Cardiovasc Med 2023; 10:1195464. [PMID: 37252119 PMCID: PMC10219228 DOI: 10.3389/fcvm.2023.1195464] [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: 03/28/2023] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
Heat shock protein 27 (HSP27) is a small chaperone protein that is overexpressed in a variety of cellular stress states. It is involved in regulating proteostasis and protecting cells from multiple sources of stress injury by stabilizing protein conformation and promoting the refolding of misfolded proteins. Previous studies have confirmed that HSP27 is involved in the development of cardiovascular diseases and plays an important regulatory role in this process. Herein, we comprehensively and systematically summarize the involvement of HSP27 and its phosphorylated form in pathophysiological processes, including oxidative stress, inflammatory responses, and apoptosis, and further explore the potential mechanisms and possible roles of HSP27 in the diagnosis and treatment of cardiovascular diseases. Targeting HSP27 is a promising future strategy for the treatment of cardiovascular diseases.
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20
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Ishikawa C, Mori N. Heat shock factor 1 is a promising therapeutic target against adult T-cell leukemia. Med Oncol 2023; 40:172. [PMID: 37165174 DOI: 10.1007/s12032-023-02042-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/28/2023] [Indexed: 05/12/2023]
Abstract
Patients with adult T-cell leukemia (ATL), which is caused by human T-cell leukemia virus type 1 (HTLV-1), show poor prognosis because of drug resistance. Heat shock protein (HSP) 90 is reportedly essential for ATL cell survival as it regulates important signaling pathways, thereby making HSP90 inhibitors new therapeutic candidates for ATL. However, HSP90 inhibition increases the expression of other HSPs, suggesting that HSPs may contribute to drug resistance. The heat shock factor 1 (HSF1) transcription factor is the primary regulator of the expression of HSPs. Furthermore, targeting HSF1 disrupts the HSP90 chaperone function. Herein, we demonstrated that HSF1 is overexpressed in HTLV-1-infected T cells. HSF1 knockdown inhibited the proliferation of HTLV-1-infected T cells. HSF1 inhibitor KRIBB11 reduced the expression and phosphorylation of HSF1, downregulated HSP70 and HSP27 expression, and suppressed Akt, nuclear factor-κB, and AP-1 signals. KRIBB11 treatment induced DNA damage, upregulated p53 and p21, and reduced the expression of cyclin D2/E, CDK2/4, c-Myc, MDM2, and β-catenin, thereby preventing retinoblastoma protein phosphorylation and inhibiting G1-S cell cycle progression. KRIBB11 also induced caspase-mediated apoptosis concomitant with the suppression of Bcl-xL, Mcl-1, XIAP, c-IAP1/2, and survivin expression. KRIBB11 inhibited HSP70 and HSP90 upregulation through treatment with AUY922, an HSP90 inhibitor, and enhanced the cytotoxic effect of AUY922, suggesting a salvage role of HSF1-dependent HSP induction in response to drug treatment. Finally, treatment of mice with KRIBB11 reduced ATL tumor growth. Therefore, this study provides a strong rationale to target HSF1 and validates the anti-ATL activity of KRIBB11.
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Affiliation(s)
- Chie Ishikawa
- Department of Microbiology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
- Division of Health Sciences, Transdisciplinary Research Organization for Subtropics and Island Studies, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Naoki Mori
- Department of Microbiology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan.
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21
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Cao Y, Shen Q, Ding M, Chen Y, Lu W, Zhu S. Development of HSP90 inhibitors-SN38 conjugates for cancer treatment. Bioorg Chem 2023; 137:106582. [PMID: 37156134 DOI: 10.1016/j.bioorg.2023.106582] [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: 02/14/2023] [Revised: 03/23/2023] [Accepted: 04/27/2023] [Indexed: 05/10/2023]
Abstract
Presently, chemotherapy remains to be one of the most important therapeutic approaches for malignant tumors. Ligands based drug conjugates are showing considerable promise as potential therapeutic agents delivery systems for cancer. Here, a series of HSP90 inhibitors-SN38 conjugates were developed through cleavable linkers for tumor-specific delivery of SN38 and reducing its side effects. In vitro assays showed that these conjugates exhibited acceptable stability in PBS and plasma, appreciable HSP90 binding affinity, and potent cytotoxic abilities. Cellular uptake behaviors also indicated that these conjugates could selectively target cancer cells in a time-dependent manner via HSP90. Among them, compound 10b with a glycine linkage exhibits appreciable in vitro and in vivo pharmacokinetic profiles, and excellent in vivo antitumor activity in Capan-1 xenograft models, demonstrating the selective targeting and accumulation of the active payload at tumor sites. Above all, these results suggest that compound 10b has the potential as a potent anticancer drug, meriting further evaluation in the future.
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Affiliation(s)
- Yuting Cao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, PR China
| | - Qianqian Shen
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Mengyuan Ding
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, PR China
| | - Yi Chen
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China.
| | - Wei Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, PR China.
| | - Shulei Zhu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, PR China.
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22
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Chen L, Wang Y, Zhou X, Wang T, Zhan H, Wu F, Li H, Bian P, Xie Z. Investigation into the communication between unheated and heat-stressed Caenorhabditis elegans via volatile stress signals. Sci Rep 2023; 13:3225. [PMID: 36828837 PMCID: PMC9958180 DOI: 10.1038/s41598-022-26554-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 12/16/2022] [Indexed: 02/26/2023] Open
Abstract
Our research group has recently found that radiation-induced airborne stress signals can be used for communication among Caenorhabditis elegans (C. elegans). This paper addresses the question of whether heat stress can also induce the emission of airborne stress signals to alert neighboring C. elegans and elicit their subsequent stress response. Here, we report that heat-stressed C. elegans produces volatile stress signals that trigger an increase in radiation resistance in neighboring unheated C. elegans. When several loss-of-function mutations affecting thermosensory neuron (AFD), heat shock factor-1, HSP-4, and small heat-shock proteins were used to test heat-stressed C. elegans, we found that the production of volatile stress signals was blocked, demonstrating that the heat shock response and ER pathway are involved in controlling the production of volatile stress signals. Our data further indicated that mutations affecting the DNA damage response (DDR) also inhibited the increase in radiation resistance in neighboring unheated C. elegans that might have received volatile stress signals, indicating that the DDR might contribute to radioadaptive responses induction by volatile stress signals. In addition, the regulatory pattern of signal production and action was preliminarily clarified. Together, the results of this study demonstrated that heat-stressed nematodes communicate with unheated nematodes via volatile stress signals.
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Affiliation(s)
- Liangwen Chen
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, 230036, People's Republic of China
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, School of Bioengineering, Huainan Normal University, Huainan, 232001, People's Republic of China
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Yun Wang
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, School of Bioengineering, Huainan Normal University, Huainan, 232001, People's Republic of China
| | - Xiuhong Zhou
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, 230036, People's Republic of China
| | - Ting Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Huimin Zhan
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, School of Bioengineering, Huainan Normal University, Huainan, 232001, People's Republic of China
| | - Fei Wu
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, School of Bioengineering, Huainan Normal University, Huainan, 232001, People's Republic of China
| | - Haolan Li
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, School of Bioengineering, Huainan Normal University, Huainan, 232001, People's Republic of China
| | - Po Bian
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
| | - Zhongwen Xie
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
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23
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An Undefined Interaction between Polyamines and Heat Shock Proteins Leads to Cellular Protection in Plasmodium falciparum and Proliferating Cells in Various Organisms. Molecules 2023; 28:molecules28041686. [PMID: 36838674 PMCID: PMC9958663 DOI: 10.3390/molecules28041686] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Environmental stimuli can distress the internal reaction of cells and their normal function. To react promptly to sudden environmental changes, a cascade of heat shock proteins (Hsps) functions to protect and act as housekeepers inside the cells. In parallel to the heat shock response, the metabolic polyamine (PA) status changes. Here, we discuss possible ways of putative interactions between Hsps and polyamines in a wide lineage of eukaryotic model organisms with a particular focus on parasitic protozoa such as Plasmodium falciparum (P. falciparum). The supposed interaction between polyamines and Hsps may protect the parasite from the sudden change in temperature during transmission from the female Anopheles mosquito to a human host. Recent experiments performed with the spermidine mimetic inhibitor 15-deoxyspergualine in Plasmodium in vitro cultures show that the drug binds to the C-terminal EEVD motif of Hsp70. This leads to inhibition of protein biosynthesis caused by prevention of eIF5A2 phosphorylation and eukaryotic initiation factor 5A (eIF5A) modification. These observations provide further evidence that PAs are involved in the regulation of protein biosynthesis of Hsps to achieve a protective effect for the parasite during transmission.
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24
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Rodriguez-Iturbe B, Johnson RJ, Sanchez-Lozada LG, Pons H. HSP70 and Primary Arterial Hypertension. Biomolecules 2023; 13:biom13020272. [PMID: 36830641 PMCID: PMC9953434 DOI: 10.3390/biom13020272] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/14/2023] [Accepted: 01/18/2023] [Indexed: 02/04/2023] Open
Abstract
Heat shock protein 70 (HSP70) production is a stress-generated cellular response with high interspecies homology. HSP70 has both chaperone and cytokine functions and may induce, depending on the context, tolerogenic anti-inflammatory reactivity or immunogenic and autoimmune reactivity. Intracellular (chaperoning transit of antigens to MHC in antigen-presenting cells) and extracellular HSP70-related effects are associated with hypertension, which is an inflammatory condition recognized as the most important risk factor for cardiovascular disease mortality. Here, we review (a) the relationship between HSP70, inflammation and immune reactivity, (b) clinical evidence relating to stress, HSP70 and anti-HSP70 reactivity with primary hypertension and (c) experimental data showing that salt-sensitive hypertension is associated with delayed hypersensitivity to HSP70. This is a consequence of anti-HSP70 reactivity in the kidneys and may be prevented and corrected by the T-cell-driven inhibition of kidney inflammation triggered by specific epitopes of HSP70. Finally, we discuss our postulate that lifelong stress signals and danger-associated molecular patterns stimulate HSP-70 and individual genetic and epigenetic characteristics determine whether the HSP70 response would drive inflammatory immune reactivity causing hypertension or, alternatively, would drive immunomodulatory responses that protect against hypertension.
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Affiliation(s)
- Bernardo Rodriguez-Iturbe
- Department of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City 14080, Mexico
- Correspondence:
| | - Richard J. Johnson
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Laura Gabriela Sanchez-Lozada
- Department of Cardio-Renal Physiopathology, National Institute of Cardiology Ignacio Chávez, Mexico City 14080, Mexico
| | - Hector Pons
- Facultad de Medicina, Universidad del Zulia, Maracaibo 4011, Venezuela
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25
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Characterization of Stress Granule Protein Turnover in Neuronal Progenitor Cells Using Correlative STED and NanoSIMS Imaging. Int J Mol Sci 2023; 24:ijms24032546. [PMID: 36768868 PMCID: PMC9917160 DOI: 10.3390/ijms24032546] [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: 12/22/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Stress granules (SGs) are stress-induced biomolecular condensates which originate primarily from inactivated RNA translation machinery and translation initiation factors. SG formation is an important defensive mechanism for cell survival, while its dysfunction has been linked to neurodegenerative diseases. However, the molecular mechanisms of SG assembly and disassembly, as well as their impacts on cellular recovery, are not fully understood. More thorough investigations into the molecular dynamics of SG pathways are required to understand the pathophysiological roles of SGs in cellular systems. Here, we characterize the SG and cytoplasmic protein turnover in neuronal progenitor cells (NPCs) under stressed and non-stressed conditions using correlative STED and NanoSIMS imaging. We incubate NPCs with isotopically labelled (15N) leucine and stress them with the ER stressor thapsigargin (TG). A correlation of STED and NanoSIMS allows the localization of individual SGs (using STED), and their protein turnover can then be extracted based on the 15N/14N ratio (using NanoSIMS). We found that TG-induced SGs, which are highly dynamic domains, recruit their constituents predominantly from the cytoplasm. Moreover, ER stress impairs the total cellular protein turnover regimen, and this impairment is not restored after the commonly proceeded stress recovery period.
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26
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Sun S, Wang C, Zhao P, Kline GM, Grandjean JMD, Jiang X, Labaudiniere R, Wiseman RL, Kelly JW, Balch WE. Capturing the conversion of the pathogenic alpha-1-antitrypsin fold by ATF6 enhanced proteostasis. Cell Chem Biol 2023; 30:22-42.e5. [PMID: 36630963 PMCID: PMC9930901 DOI: 10.1016/j.chembiol.2022.12.004] [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: 08/30/2022] [Revised: 11/07/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023]
Abstract
Genetic variation in alpha-1 antitrypsin (AAT) causes AAT deficiency (AATD) through liver aggregation-associated gain-of-toxic pathology and/or insufficient AAT activity in the lung manifesting as chronic obstructive pulmonary disease (COPD). Here, we utilize 71 AATD-associated variants as input through Gaussian process (GP)-based machine learning to study the correction of AAT folding and function at a residue-by-residue level by pharmacological activation of the ATF6 arm of the unfolded protein response (UPR). We show that ATF6 activators increase AAT neutrophil elastase (NE) inhibitory activity, while reducing polymer accumulation for the majority of AATD variants, including the prominent Z variant. GP-based profiling of the residue-by-residue response to ATF6 activators captures an unexpected role of the "gate" area in managing AAT-specific activity. Our work establishes a new spatial covariant (SCV) understanding of the convertible state of the protein fold in response to genetic perturbation and active environmental management by proteostasis enhancement for precision medicine.
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Affiliation(s)
- Shuhong Sun
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Chao Wang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Pei Zhao
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Gabe M Kline
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | | | - Xin Jiang
- Protego Biopharma, 10945 Vista Sorrento Parkway, San Diego, CA, USA
| | | | - R Luke Wiseman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Jeffery W Kelly
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - William E Balch
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA.
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27
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Wang D, Zhang Y, Wang X, Zhang L, Xu S. Construction and validation of an aging-related gene signature predicting the prognosis of pancreatic cancer. Front Genet 2023; 14:1022265. [PMID: 36741321 PMCID: PMC9889561 DOI: 10.3389/fgene.2023.1022265] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 01/10/2023] [Indexed: 01/20/2023] Open
Abstract
Background: Pancreatic cancer is a malignancy with a high mortality rate and worse prognosis. Recently, public databases and bioinformatics tools make it easy to develop the prognostic risk model of pancreatic cancer, but the aging-related risk signature has not been reported. The present study aimed to identify an aging-related risk signature with potential prognostic value for pancreatic cancer patients. Method: Gene expression profiling and human clinical information of pancreatic cancer were derived from The Cancer Genome Atlas database (TCGA). Aging-related gene sets were downloaded from The Molecular Signatures Database and aging-related genes were obtained from the Human Ageing Genomic Resources database. Firstly, Gene set enrichment analysis was carried out to investigate the role of aging process in pancreatic cancer. Secondly, differentially expressed genes and aging-related prognostic genes were screened on the basis of the overall survival information. Then, univariate COX and LASSO analysis were performed to establish an aging-related risk signature of pancreatic cancer patients. To facilitate clinical application, a nomogram was established to predict the survival rates of PCa patients. The correlations of risk score with clinical features and immune status were evaluated. Finally, potential therapeutic drugs were screened based on the connectivity map (Cmap) database and verified by molecular docking. For further validation, the protein levels of aging-related genes in normal and tumor tissues were detected in the Human Protein Atlas (HPA) database. Result: The genes of pancreatic cancer were markedly enriched in several aging-associated signaling pathways. We identified 14 key aging-related genes related to prognosis from 9,020 differentially expressed genes and establish an aging-related risk signature. This risk model indicated a strong prognostic capability both in the training set of TCGA cohort and the validation set of PACA-CA cohort and GSE62452 cohort. A nomogram combining risk score and clinical variables was built, and calibration curve and Decision curve analysis (DCA) have proved that it has a good predictive value. Additionally, the risk score was tightly linked with tumor immune microenvironment, immune checkpoints and proinflammatory factors. Moreover, a candidate drug, BRD-A47144777, was screened and verified by molecular docking, indicating this drug has the potential to treat PCa. The protein expression levels of GSK3B, SERPINE1, TOP2A, FEN1 and HIC1 were consistent with our predicted results. Conclusion: In conclusion, we identified an aging-related signature and nomogram with high prediction performance of survival and immune cell infiltration for pancreatic cancer. This signature might potentially help in providing personalized immunotherapy for patients with pancreatic cancer.
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Affiliation(s)
- Dengchuan Wang
- Office of Medical Ethics, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Yonggang Zhang
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Xiaokang Wang
- Department of Pharmacy, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Limei Zhang
- Department of Oncology, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Shi Xu
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China,*Correspondence: Shi Xu,
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28
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Amatya E, Blagg BSJ. Recent advances toward the development of Hsp90 C-terminal inhibitors. Bioorg Med Chem Lett 2023; 80:129111. [PMID: 36549397 PMCID: PMC9869726 DOI: 10.1016/j.bmcl.2022.129111] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Heat shock protein 90 (Hsp90) is a dynamic protein which serves to ensure proper folding of nascent client proteins, regulate transcriptional responses to environmental stress and guide misfolded and damaged proteins to destruction via ubiquitin proteasome pathway. Recent advances in the field of Hsp90 have been made through development of isoform selective inhibitors, Hsp90 C-terminal inhibitors and disruption of protein-protein interactions. These approaches have led to alleviation of adverse off-target effects caused by pan-inhibition of Hsp90 using N-terminal inhibitors. In this review, we provide an overview of relevant advances on targeting the Hsp90 C-terminal Domain (CTD) and the development of Hsp90 C-terminal inhibitors (CTIs) since 2015.
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Affiliation(s)
- Eva Amatya
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN 46556, USA.
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29
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Varga A, Nguyen MT, Pénzes K, Bátai B, Gyulavári P, Gurbi B, Murányi J, Csermely P, Csala M, Vántus T, Sőti C. Protein Kinase D3 (PKD3) Requires Hsp90 for Stability and Promotion of Prostate Cancer Cell Migration. Cells 2023; 12:cells12020212. [PMID: 36672148 PMCID: PMC9857065 DOI: 10.3390/cells12020212] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/12/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023] Open
Abstract
Prostate cancer metastasis is a significant cause of mortality in men. PKD3 facilitates tumor growth and metastasis, however, its regulation is largely unclear. The Hsp90 chaperone stabilizes an array of signaling client proteins, thus is an enabler of the malignant phenotype. Here, using different prostate cancer cell lines, we report that Hsp90 ensures PKD3 conformational stability and function to promote cancer cell migration. We found that pharmacological inhibition of either PKDs or Hsp90 dose-dependently abrogated the migration of DU145 and PC3 metastatic prostate cancer cells. Hsp90 inhibition by ganetespib caused a dose-dependent depletion of PKD2, PKD3, and Akt, which are all involved in metastasis formation. Proximity ligation assay and immunoprecipitation experiments demonstrated a physical interaction between Hsp90 and PKD3. Inhibition of the chaperone-client interaction induced misfolding and proteasomal degradation of PKD3. PKD3 siRNA combined with ganetespib treatment demonstrated a specific involvement of PKD3 in DU145 and PC3 cell migration, which was entirely dependent on Hsp90. Finally, ectopic expression of PKD3 enhanced migration of non-metastatic LNCaP cells in an Hsp90-dependent manner. Altogether, our findings identify PKD3 as an Hsp90 client and uncover a potential mechanism of Hsp90 in prostate cancer metastasis. The molecular interaction revealed here may regulate other biological and pathological functions.
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Affiliation(s)
- Attila Varga
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
- Correspondence: (A.V.); (C.S.)
| | - Minh Tu Nguyen
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Kinga Pénzes
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
- Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary
| | - Bence Bátai
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
- HCEMM-SU Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary
| | - Pál Gyulavári
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
- IQVIA Hungary, 1117 Budapest, Hungary
| | - Bianka Gurbi
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
| | - József Murányi
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
| | - Péter Csermely
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Miklós Csala
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
| | - Tibor Vántus
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- MTA-SE Pathobiochemistry Research Group, Semmelweis University, 1094 Budapest, Hungary
| | - Csaba Sőti
- Department of Molecular Biology, Semmelweis University, 1094 Budapest, Hungary
- Correspondence: (A.V.); (C.S.)
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30
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Siddiqui SH, Khan M, Park J, Lee J, Choe H, Shim K, Kang D. COPA3 peptide supplementation alleviates the heat stress of chicken fibroblasts. Front Vet Sci 2023; 10:985040. [PMID: 36908511 PMCID: PMC9998527 DOI: 10.3389/fvets.2023.985040] [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: 07/03/2022] [Accepted: 02/07/2023] [Indexed: 03/14/2023] Open
Abstract
Heat stress inhibits cellular proliferation and differentiation through the production of reactive oxygen species. Under stress conditions, antioxidant drugs promote stable cellular function by reducing the stress level. We sought to demonstrate 9-mer disulfide dimer peptide (COPA3) supplementation stabilizes fibroblast proliferation and differentiation even under heat stress conditions. In our study, fibroblasts were assigned to two different groups based on the temperature, like 38°C group presented as Control - and 43°C group presented as Heat Stress-. Each group was subdivided into two groups depending upon COPA3 treatment, like 38°C + COPA3 group symbolized Control+ and the 43°C + COPA3 group symbolized as Heat Stress+. Heat stress was observed to decrease the fibroblast viability and function and resulted in alterations in the fibroblast shape and cytoskeleton structure. In contrast, COPA3 stabilized the fibroblast viability, shape, and function. Moreover, heat stress and COPA3 were found to have opposite actions with respect to energy production, which facilitates the stabilization of cellular functions by increasing the heat tolerance capacity. The gene expression levels of antioxidant and heat shock proteins were higher after heat stress. Additionally, heat stress promotes the mitogen-activated protein kinase/ extracellular signal-regulated kinase-nuclear factor erythroid 2-related factor 2 (MAPK/ERK-Nrf2). COPA3 maintained the MAPK/ERK-Nrf2 gene expressions that promote stable fibroblast proliferation, and differentiation as well as suppress apoptosis. These findings suggest that COPA3 supplementation increases the heat tolerance capacity, viability, and functional activity of fibroblasts.
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Affiliation(s)
- Sharif Hasan Siddiqui
- Center for Musculoskeletal Research, School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, United States.,Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
| | - Mousumee Khan
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Jinryong Park
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea.,Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, Republic of Korea.,3D Tissue Culture Research Center, Konkuk University, Seoul, Republic of Korea
| | - Jeongeun Lee
- Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Hosung Choe
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Kwanseob Shim
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea.,Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Darae Kang
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea
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31
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Ackerman A, Kijima T, Eguchi T, Prince TL. Monitoring of the Heat Shock Response with a Real-Time Luciferase Reporter. Methods Mol Biol 2023; 2693:1-11. [PMID: 37540422 DOI: 10.1007/978-1-0716-3342-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The heat shock response (HSR) is a cellular mechanism for counteracting acute proteotoxic stress. In eukaryotes, transcriptional activation of the HSR is regulated by heat shock factor 1 (HSF1). Activation of HSF1 induces the expression of heat shock proteins (HSPs) that function as molecular chaperones to fold and maintain the three-dimensional structure of misfolded proteins. The regulation of the degree and duration of the HSR is controlled by multiple biochemical mechanisms that include posttranslational modification of HSF1 and numerous protein-protein interactions. In this chapter, we describe a method to evaluate the activation and deactivation of the HSR at the transcriptional level using a short half-life luciferase reporter assay. This assay can be used to further characterize the HSR or as a screen for small molecule inducers, amplifiers, or repressors.
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Affiliation(s)
| | - Toshiki Kijima
- Department of Urology, Dokkyo Medical University, Tochigi, Japan
| | - Takanori Eguchi
- Department of Dental Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Guo H, Zhang Y, Ma H, Gong P, Shi Y, Zhao W, Wang A, Liu M, Sun Z, Wang F, Wang Q, Ba X. T-stage-specific abdominal visceral fat, haematological nutrition indicators and inflammation as prognostic factors in patients with clear renal cell carcinoma. Adipocyte 2022; 11:133-142. [PMID: 35285399 PMCID: PMC8920171 DOI: 10.1080/21623945.2022.2048546] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Clear cell renal carcinoma (ccRCC) is the most common histological type of renal cancer and has the highest mortality. Several studies have been conducted on the relationship between adipose tissue and ccRCC prognosis, however, the results have been inconsistent to date. The current study aimed at establishing a link between abdominal fat composition and short-term prognosis in patients with ccRCC after T-stage stratification. We retrospectively analysed 250 patients with pathologically confirmed ccRCC (173 low T-stage and 77 high T-stage) in our hospital. The computed tomography (CT) images were evaluated using ImageJ. Then, subcutaneous and visceral fat areas (SFA and VFA), total fat areas (TFA) and the relative VFA (rVFA) were measured and computed. Meanwhile, biochemical indices of blood serum were analysed. The results showed that rVFA in low T-stage cohort who had a history of short-term postoperative complications were significantly lower than those who did not. No such association was observed in the high T-stage cohort. Further investigation revealed that the correlations between biochemical indexes and fat area-related variables varied across T-stage groups. As a result, rVFA is a reliable independent predictor of short-term prognosis in patients with low T-stage ccRCC but not in patients with high T-stage ccRCC.
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Affiliation(s)
- Hao Guo
- Department of Radiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Shandong province, Jinan, China
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Yumei Zhang
- Department of Radiology, Lanshan Branch of Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Heng Ma
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Peiyou Gong
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Yinghong Shi
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Wenlei Zhao
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Aijie Wang
- Department of Radiology, Yaitai Shan Hospital, Shandong province, Yantai, China
| | - Ming Liu
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Zehua Sun
- Department of Radiology, Yantai Yuhuangding Hospital, Shandong province, Yantai, China
| | - Fang Wang
- Department of Radiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Shandong province, Jinan, China
| | - Qing Wang
- Department of Radiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Shandong province, Jinan, China
| | - Xinru Ba
- Department of Radiology, Yaitai Shan Hospital, Shandong province, Yantai, China
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HSF2BP protects against acute liver injury by regulating HSF2/HSP70/MAPK signaling in mice. Cell Death Dis 2022; 13:830. [PMID: 36167792 PMCID: PMC9515097 DOI: 10.1038/s41419-022-05282-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 01/23/2023]
Abstract
Heat shock proteins (HSPs) depletion and protein misfolding are important causes of hepatocyte death and liver regeneration disorder in liver injury. HSF2BP, as its name implies, is a binding protein of HSF2, but the specific role of HSF2BP in heat shock response (HSR) remains unknown. The aim of this study is to identify the role of HSF2BP in HSR and acute liver injury. In this study, we found that HSF2BP expression increased significantly within 24 h after APAP administration, and the trend was highly consistent with that of HSP70. hsf2bp-KO and hsf2bp-TG mouse models demonstrated HSF2BP reduced hepatocyte death, ameliorated inflammation, and improved liver function in APAP- or D-GalN/LPS- induced liver injury. Meanwhile, a significant increase of the survival rate was observed in hsf2bp-TG mice after APAP administration. Further studies showed that HSF2BP upregulated the expression of HSF2 and HSP70 and inhibited the activation of Jnk1/2 and P38 MAPK. Additionally, HSP70 siRNA pretreatment abolished the effect of HSF2BP on the MAPK pathway in APAP-treated hepatocytes. The results reveal that HSF2BP is a protective factor in acute liver injury, and the HSF2BP/HSP70/MAPK regulatory axis is crucial for the pathogenesis of liver injury. HSF2BP is a potential therapeutic target for liver injury.
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Pan Z, Chen Y, Pang H, Wang X, Zhang Y, Xie X, He G. Design, synthesis, and biological evaluation of novel dual inhibitors of heat shock protein 90/mammalian target of rapamycin (Hsp90/mTOR) against bladder cancer cells. Eur J Med Chem 2022; 242:114674. [PMID: 35987020 DOI: 10.1016/j.ejmech.2022.114674] [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: 06/04/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 11/29/2022]
Abstract
In this study, a novel class of thieno [2,3-d] pyrimidine derivatives containing resorcinol and morpholine fragments as Hsp90/mTOR dual inhibitors was designed, synthesized, and evaluated. In vitro anti-tumor assay results: the obtained compounds demonstrated effectiveness in suppressing the enzymatic activities of the Hsp90 and mTOR and inhibiting the proliferation of J82, T24, and SW780 cancer cell lines. Among these dual inhibitors, the most potent compound 17o, confirmed remarkable inhibitory activities on Hsp90, mTOR, and SW780 cell. Furthermore, the molecular dynamics simulation and a panel of mechanism studies revealed that inhibitor 17o suppressed the proliferation of SW780 cells through the over-activation of the PI3K/AKT/mTOR pathway regulated by mTOR inhibition and apoptosis regulated by the mitochondrial pathway. In subcutaneous J82 xenograft models, the compound 17o also presented considerable in vivo anti-tumor activity. Therefore, our investigations highlight that a new-found dual Hsp90/mTOR inhibitor by rational drug design strategies could be a promising lead compound for targeted bladder cancer therapy and deserves further studies.
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Affiliation(s)
- Zhaoping Pan
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yi Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Haiying Pang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaoyun Wang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yuehua Zhang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xin Xie
- College of Medical Technology and School of Pharmacy, State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Gu He
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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Somogyvári M, Khatatneh S, Sőti C. Hsp90: From Cellular to Organismal Proteostasis. Cells 2022; 11:cells11162479. [PMID: 36010556 PMCID: PMC9406713 DOI: 10.3390/cells11162479] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
Assuring a healthy proteome is indispensable for survival and organismal health. Proteome disbalance and the loss of the proteostasis buffer are hallmarks of various diseases. The essential molecular chaperone Hsp90 is a regulator of the heat shock response via HSF1 and a stabilizer of a plethora of signaling proteins. In this review, we summarize the role of Hsp90 in the cellular and organismal regulation of proteome maintenance.
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Zhang Y, Geng H, Zhang J, He K. An update mini-review on the progress of azanucleoside analogues. Chem Pharm Bull (Tokyo) 2022; 70:469-476. [PMID: 35753803 DOI: 10.1248/cpb.c22-00088] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The development of structurally novel nucleoside analogues is an active area in medicinal chemistry, since these drugs have proven clinical efficacy for decades. Azanucleosides are nucleoside analogues in which the sugar moieties are composed of nitrogen-containing rings or chains. In recent years, many azanucleosides have demonstrated therapeutic potential. In this short review, we describe recent advancements in azanucleosides, which may translate in a better understanding of the molecular design, biological activity, structure-activity relationship, and their related mechanism of action. The information summarized in this paper should encourage medicinal chemists in their future efforts to create more potent and effective chemotherapeutic agents.
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Affiliation(s)
| | - Hao Geng
- College of Science, Xichang University
| | | | - Kehan He
- College of Science, Xichang University
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Aesculin offers increased resistance against oxidative stress and protective effects against Aβ-induced neurotoxicity in Caenorhabditis elegans. Eur J Pharmacol 2022; 917:174755. [PMID: 35016885 DOI: 10.1016/j.ejphar.2022.174755] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/11/2021] [Accepted: 01/06/2022] [Indexed: 11/21/2022]
Abstract
Aesculin, a coumarin compound, is one of the major active ingredients of traditional Chinese herbal medicine Qinpi (Cortex Fraxini), which has been reported to exhibit antioxidative, anti-inflammatory and neuroprotective properties against oxidative stress and cellular apoptosis. However, the regulatory mechanisms remain poorly characterized in vivo. This research was performed to explore the underlying molecular mechanisms behind aesculin response conferring oxidative stress resistance, and the protective effects on amyloid-β (Aβ)-mediated neurotoxicity in Caenorhabditis elegans. Study indicated that aesculin plays the protective roles for C. elegans against oxidative stress and Aβ-mediated neurotoxicity and reduces the elevated ROS and MDA contents through enhancement of antioxidant defenses. The KEGG pathway analysis suggested that the differentially expressed genes are mainly involved in longevity regulating pathway, and the nuclear translocation of DAF-16 and the RNAi of daf-16 and hsf-1 indicated that DAF-16 and HSF-1 play critical roles in integrating upstream signals and inducing the expressions of stress resistance-related genes. Furthermore, the up-regulated expressions of their target genes such as sod-3 and hsp-16.2 were confirmed in transgenic GFP reporter strains CF1553 and CL2070, respectively. These results indicated that the regulators DAF-16 and HSF-1 elevate stress resistance of C. elegans by modulating stress-responsive genes. Further experiments revealed that aesculin is capable of suppressing Aβ-induced oxidative stress and apoptosis and improves chemosensory behavior dysfunction in Aβ-transgenic nematodes. In summary, this study suggested that aesculin offers increased resistance against oxidative stress and protective effects against Aβ-induced neurotoxicity through activation of stress regulators DAF-16 and HSF-1 in nematodes.
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The Potential of Hsp90 in Targeting Pathological Pathways in Cardiac Diseases. J Pers Med 2021; 11:jpm11121373. [PMID: 34945845 PMCID: PMC8709342 DOI: 10.3390/jpm11121373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 12/26/2022] Open
Abstract
Heat shock protein 90 (Hsp90) is a molecular chaperone that interacts with up to 10% of the proteome. The extensive involvement in protein folding and regulation of protein stability within cells makes Hsp90 an attractive therapeutic target to correct multiple dysfunctions. Many of the clients of Hsp90 are found in pathways known to be pathogenic in the heart, ranging from transforming growth factor β (TGF-β) and mitogen activated kinase (MAPK) signaling to tumor necrosis factor α (TNFα), Gs and Gq g-protein coupled receptor (GPCR) and calcium (Ca2+) signaling. These pathways can therefore be targeted through modulation of Hsp90 activity. The activity of Hsp90 can be targeted through small-molecule inhibition. Small-molecule inhibitors of Hsp90 have been found to be cardiotoxic in some cases however. In this regard, specific targeting of Hsp90 by modulation of post-translational modifications (PTMs) emerges as an attractive strategy. In this review, we aim to address how Hsp90 functions, where Hsp90 interacts within pathological pathways, and current knowledge of small molecules and PTMs known to modulate Hsp90 activity and their potential as therapeutics in cardiac diseases.
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Kmiecik SW, Mayer MP. Molecular mechanisms of heat shock factor 1 regulation. Trends Biochem Sci 2021; 47:218-234. [PMID: 34810080 DOI: 10.1016/j.tibs.2021.10.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/08/2021] [Accepted: 10/22/2021] [Indexed: 02/06/2023]
Abstract
To thrive and to fulfill their functions, cells need to maintain proteome homeostasis even in the face of adverse environmental conditions or radical restructuring of the proteome during differentiation. At the center of the regulation of proteome homeostasis is an ancient transcriptional mechanism, the so-called heat shock response (HSR), orchestrated in all eukaryotic cells by heat shock transcription factor 1 (Hsf1). As Hsf1 is implicated in aging and several pathologies like cancer and neurodegenerative disorders, understanding the regulation of Hsf1 could open novel therapeutic opportunities. In this review, we discuss the regulation of Hsf1's transcriptional activity by multiple layers of control circuits involving Hsf1 synthesis and degradation, conformational rearrangements and post-translational modifications (PTMs), and molecular chaperones in negative feedback loops.
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Affiliation(s)
- Szymon W Kmiecik
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, D-69120 Heidelberg, Germany
| | - Matthias P Mayer
- Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, D-69120 Heidelberg, Germany.
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