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Tausif YM, Thekkekkara D, Sai TE, Jahagirdar V, Arjun HR, Meheronnisha SK, Babu A, Banerjee A. Heat shock protein paradigms in cancer progression: future therapeutic perspectives. 3 Biotech 2024; 14:96. [PMID: 38449709 PMCID: PMC10912419 DOI: 10.1007/s13205-024-03951-6] [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: 03/28/2023] [Accepted: 01/28/2024] [Indexed: 03/08/2024] Open
Abstract
Heat-shock proteins (HSPs), also known as stress proteins, are ubiquitously present in all forms of life. They play pivotal roles in protein folding and unfolding, the formation of multiprotein complexes, the transportation and sorting of proteins into their designated subcellular compartments, the regulation of the cell cycle, and signalling processes. These HSPs encompass HSP27, HSP40, HSP70, HSP60, and HSP90, each contributing to various cellular functions. In the context of cancer, HSPs exert influence by either inhibiting or activating diverse signalling pathways, thereby impacting growth, differentiation, and cell division. This article offers an extensive exploration of the functions of HSPs within the realms of pharmacology and cancer biology. HSPs are believed to play substantial roles in the mechanisms underlying the initiation and progression of cancer. They hold promise as valuable clinical markers for cancer diagnosis, potential targets for therapeutic interventions, and indicators of disease progression. In times of cellular stress, HSPs function as molecular chaperones, safeguarding the structural and functional integrity of proteins and aiding in their proper folding. Moreover, HSPs play a crucial role in cancer growth, by regulating processes such as angiogenesis, cell proliferation, migration, invasion, and metastasis.
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Affiliation(s)
- Y. Mohammed Tausif
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Dithu Thekkekkara
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Thummuru Ekshita Sai
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Vaishnavi Jahagirdar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - H. R. Arjun
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - S. K. Meheronnisha
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Amrita Babu
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Aniruddha Banerjee
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
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Liu CH, Liu MC, Jheng PR, Yu J, Fan YJ, Liang JW, Hsiao YC, Chiang CW, Bolouki N, Lee JW, Hsieh JH, Mansel BW, Chen YT, Nguyen HT, Chuang EY. Plasma-Derived Nanoclusters for Site-Specific Multimodality Photo/Magnetic Thrombus Theranostics. Adv Healthc Mater 2023; 12:e2301504. [PMID: 37421244 DOI: 10.1002/adhm.202301504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/14/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
Traditional thrombolytic therapeutics for vascular blockage are affected by their limited penetration into thrombi, associated off-target side effects, and low bioavailability, leading to insufficient thrombolytic efficacy. It is hypothesized that these limitations can be overcome by the precisely controlled and targeted delivery of thrombolytic therapeutics. A theranostic platform is developed that is biocompatible, fluorescent, magnetic, and well-characterized, with multiple targeting modes. This multimodal theranostic system can be remotely visualized and magnetically guided toward thrombi, noninvasively irradiated by near-infrared (NIR) phototherapies, and remotely activated by actuated magnets for additional mechanical therapy. Magnetic guidance can also improve the penetration of nanomedicines into thrombi. In a mouse model of thrombosis, the thrombosis residues are reduced by ≈80% and with no risk of side effects or of secondary embolization. This strategy not only enables the progression of thrombolysis but also accelerates the lysis rate, thereby facilitating its prospective use in time-critical thrombolytic treatment.
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Affiliation(s)
- Chia-Hung Liu
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
- TMU Research Center of Urology and Kidney, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
- Department of Urology, Shuang Ho Hospital, Taipei Medical University, 291 Zhongzheng Road, Zhonghe District, New Taipei City, 23561, Taiwan
| | - Ming-Che Liu
- Clinical Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Pei-Ru Jheng
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Jui Fan
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
| | - Jia-Wei Liang
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yu-Cheng Hsiao
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
| | - Chih-Wei Chiang
- Department of Orthopedics, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Orthopedics, Taipei Medical University Hospital, Taipei, 11031, Taiwan
| | - Nima Bolouki
- Department of Physical Electronics, Faculty of Science, Masaryk University, Brno, 60177, Czech Republic
| | - Jyh-Wei Lee
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
| | - Jang-Hsing Hsieh
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
- Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
| | - Bradley W Mansel
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 30076, Taiwan
| | - Yan-Ting Chen
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
| | - Hieu Trung Nguyen
- Department of Orthopedics and Trauma, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
| | - Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, International Ph.D. Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics, School of Biomedical Engineering, Research Center of Biomedical Device, Innovation Entrepreneurship Education Center, College of Interdisciplinary Studies, Taipei Medical University, Taipei, 11031, Taiwan
- Cell Physiology and Molecular Image Research Center, Taipei Medical University, Wan Fang Hospital, Taipei, 11696, Taiwan
- Precision Medicine and Translational Cancer Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan
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Yoo YJ, Jeon S, Jin H, Won HY, Jeong MG, Cho Y, Hwang ES, Na Y, Cho J, Lee YS. Drug like HSP27 cross linkers with chromenone structure ameliorates pulmonary fibrosis. Front Pharmacol 2023; 14:1203033. [PMID: 37469871 PMCID: PMC10352808 DOI: 10.3389/fphar.2023.1203033] [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: 04/10/2023] [Accepted: 06/22/2023] [Indexed: 07/21/2023] Open
Abstract
Background: Pulmonary fibrosis (PF) is a progressive lung disease characterized by fibroblast accumulation and collagen deposition, resulting in lung scarring and impaired gas exchange. Current treatments for idiopathic pulmonary fibrosis (IPF) have limited efficacy and significant side effects. Heat shock protein 27 (HSP27) has emerged as a potential therapeutic target for PF due to its involvement in fibrotic processes. However, effective HSP27 inhibitors for PF treatment are still lacking. Methods: To assess the anti-fibrotic effects of NA49, we utilized murine PF models induced by radiation (IR) or bleomycin (BLM). We administered NA49 to the PF mice and evaluated its impact on lung fibrosis progression. We also investigated the molecular mechanisms underlying NA49's effects, focusing on its inhibition of EMT-related signaling pathways. Results: In our study, we evaluated the potential of a novel HSP27 inhibitor, NA49, in preclinical models of PF. NA49 effectively suppressed PF development in radiation and bleomycin-induced PF models. It reduced fibrosis, inhibited NFkB signaling, and downregulated EMT-related molecules. Importantly, we evaluated the safety profile of NA49 by assessing its impact on DNA strand breakage. Compared to previous HSP27 inhibitors, NA49 showed lower levels of DNA damage in human lung epithelial cells, and suggests that NA49 may have reduced toxicity compared to other HSP27 inhibitors. Overall, our results demonstrate that NA49 effectively inhibits PF development in preclinical models. It reduces lung fibrosis, inhibits EMT-related signaling pathways, and exhibits improved safety profiles. These findings highlight the potential of NA49 as a promising candidate for the treatment of PF. Conclusion: NA49 exhibited significant anti-fibrotic effects, inhibiting fibrosis development and EMT-related signaling pathways. Moreover, NA49 showed improved safety profiles compared to previous HSP27 inhibitors.
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Affiliation(s)
- Young Jo Yoo
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Seulgi Jeon
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Hee Jin
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Hee Yeon Won
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Mi Gyeong Jeong
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Yeseul Cho
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Eun Sook Hwang
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Younghwa Na
- College of Pharmacy, CHA University, Pocheon-si, Gyeonggi-do, Republic of Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei University Health System, Seoul, Republic of Korea
| | - Yun-Sil Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
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Bastaki NK, Albarjas TA, Almoosa FA, Al-Adsani AM. Chronic heat stress induces the expression of HSP genes in the retina of chickens (Gallus gallus). Front Genet 2023; 14:1085590. [PMID: 37077545 PMCID: PMC10106695 DOI: 10.3389/fgene.2023.1085590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Introduction: Chronic heat stress during summer is a major challenge imposed by global warming. Chickens are more sensitive to heat stress than mammals because they lack sweat glands. Thus, chickens are more susceptible to heat stress during summer than other seasons. Induction of heat shock protein (HSP) genes is one of the primary defense mechanisms against heat stress. Tissue-specific responses exhibited by different classes of HSPs upon exposure to heat stress have been reported previously in different tissues including the heart, kidney, intestine, blood, and muscle, but not in the retina. Therefore, this study aimed to investigate the expression levels of HSP27, HSP40, HSP60, HSP70, and HSP90 in the retina under chronic heat stress.Methods: This study was conducted during the summers of 2020 and 2021 in Kuwait. Chickens (Gallus gallus) were divided into control and heat-treated groups and sacrificed at different developmental stages. Retinas were extracted and analyzed by using Real Time quantitative Polymerase Chain Reaction (RT-qPCR).Results: Our results from the summer of 2021 were similar to that from the summer of 2020, regardless of whether GAPDH or RPL5 was used as a gene normalizer. All five HSP genes were upregulated in the retina of 21-day-old heat-treated chickens and stayed upregulated until 35 days of age, with the exception of HSP40, which was downregulated. The addition of two more developmental stages in the summer of 2021 showed that at 14 days, all HSP genes were upregulated in the retina of heat-treated chickens. In contrast, at 28 days, HSP27 and HSP40 were downregulated, whereas HSP60, HSP70, and HSP90 were upregulated. Furthermore, our results showed that under chronic heat stress, the highest upregulation of HSP genes was seen at the earliest developmental stages.Discussion: To the best of our knowledge, this is the first study to report the expression levels of HSP27, HSP40, HSP60, HSP70, and HSP90 in the retina under chronic heat stress. Some of our results match the previously reported expression levels of some HSPs in other tissues under heat stress. These results suggest that HSP gene expression can be used as a biomarker for chronic heat stress in the retina.
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Jeon S, Jin H, Kim JM, Hur Y, Song EJ, Lee YJ, Na Y, Cho J, Lee YS. The miR-15b-Smurf2-HSP27 axis promotes pulmonary fibrosis. J Biomed Sci 2023; 30:2. [PMID: 36611161 PMCID: PMC9824921 DOI: 10.1186/s12929-023-00896-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Heat shock protein 27 (HSP27) is overexpressed during pulmonary fibrosis (PF) and exacerbates PF; however, the upregulation of HSP27 during PF and the therapeutic strategy of HSP27 inhibition is not well elucidated. METHODS We have developed a mouse model simulating clinical stereotactic body radiotherapy (SBRT) with focal irradiation and validated the induction of RIPF. HSP25 (murine form of HSP27) transgenic (TG) and LLC1-derived orthotropic lung tumor models were also used. Lung tissues of patients with RIPF and idiopathic pulmonary fibrosis, and lung tissues from various fibrotic mouse models, as well as appropriated cell line systems were used. Public available gene expression datasets were used for therapeutic response rate analysis. A synthetic small molecule HSP27 inhibitor, J2 was also used. RESULTS HSP27 expression with its phosphorylated form (pHSP27) increased during PF. Decreased mRNA expression of SMAD-specific E3 ubiquitin-protein ligase 2 (Smurf2), which is involved in ubiquitin degradation of HSP27, was responsible for the increased expression of pHSP27. In addition, increased expression of miRNA15b was identified with decreased expression of Smurf2 mRNA in PF models. Inverse correlation between pHSP27 and Smurf2 was observed in the lung tissues of PF animals, an irradiated orthotropic lung cancer models, and PF tissues from patients. Moreover, a HSP27 inhibitor cross-linked with HSP27 protein to ameliorate PF, which was more effective when targeting the epithelial to mesenchymal transition (EMT) stage of PF. CONCLUSIONS Our findings identify upregulation mechanisms of HSP27 during PF and provide a therapeutic strategy for HSP27 inhibition for overcoming PF.
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Affiliation(s)
- Seulgi Jeon
- grid.255649.90000 0001 2171 7754Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Republic of Korea ,grid.418982.e0000 0004 5345 5340Inhalation Toxicity Research Group, Korea Institute of Toxicology, Jeongeup-si, Jeollabuk-do 56212 Republic of Korea
| | - Hee Jin
- grid.255649.90000 0001 2171 7754Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Republic of Korea
| | - Jin-Mo Kim
- grid.413046.40000 0004 0439 4086Department of Radiation Oncology, Yonsei University Health System, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea ,grid.31501.360000 0004 0470 5905Department of Manufacturing Pharmacy, Natural Product Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826 Republic of Korea
| | - Youmin Hur
- grid.255649.90000 0001 2171 7754Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Republic of Korea
| | - Eun Joo Song
- grid.255649.90000 0001 2171 7754Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Republic of Korea
| | - Yoon-Jin Lee
- grid.415464.60000 0000 9489 1588Korea Institute of Radiological and Medical Science, Seoul, 01812 Republic of Korea
| | - Younghwa Na
- grid.410886.30000 0004 0647 3511College of Pharmacy, CHA University, 120, Haeryong-ro, Pocheon-si, Gyeonggi-do 11160 Republic of Korea
| | - Jaeho Cho
- grid.413046.40000 0004 0439 4086Department of Radiation Oncology, Yonsei University Health System, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Yun-Sil Lee
- grid.255649.90000 0001 2171 7754Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Republic of Korea
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Dai Y, Hu L. HSPB1 overexpression improves hypoxic-ischemic brain damage by attenuating ferroptosis in rats through promoting G6PD expression. J Neurophysiol 2022; 128:1507-1517. [PMID: 36321738 DOI: 10.1152/jn.00306.2022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Heat-shock protein B (HSPB1) has a neuroprotective effect on brain injury and is a negative regulator of ferroptosis. Therefore, we infer that HSPB1 plays a protective role in hypoxic-ischemic (HI) brain damage by inhibiting ferroptosis. A neonatal rat model of hypoxic-ischemic (HI) brain damage was established. HSPB1 overexpression plasmid and the negative control were injected into the lateral ventricle of rats 48 h before HI brain damage surgery. HSPB1 and glucose-6-phosphate dehydrogenase (G6PD) levels, infarction rate, iron accumulation, apoptosis, and ferroptosis-related markers were estimated with the assistance of qRT-PCR, 2,3,5-triphenyl tetrazolium chloride (TTC) staining, Prussian blue staining, iron assay kit, TUNEL staining, and Western blot. In vitro, after transfection, HSPB1 and G6PD levels, oxygen-glucose deprivation (OGD)-mediated hippocampal neuron cell viability, apoptosis, iron content, and ferroptosis-related markers were assessed using qRT-PCR, MTT, flow cytometry, iron assay kit, and Western blot. HSPB1 and G6PD were overexpressed in the hippocampus tissues of HI rats. High expression of HSPB1 in HI rats lessened infarction rate and ferritin level, hindered iron accumulation and apoptosis, and promoted GPX4, SLC7A11, and TFR1 levels. In OGD-mediated hippocampal neuron cells, HSPB1 upregulation intensified the viability and repressed apoptosis and ferroptosis, whereas G6PD silencing reversed the effects of HSPB1 upregulation. We documented that HSPB1 overexpression unleashes neuroprotective effects via modulating G6PD expression, which offers a novel target for the prevention and treatment of HI brain damage.NEW & NOTEWORTHY HSPB1 and G6PD were overexpressed in the hippocampus tissues of HI rats. High expression of HSPB1 in HI rats mitigated infarction rate and iron accumulation. HSPB1 overexpression reduced ferritin level, attenuated apoptosis, yet augmented GPX4, SLC7A11, and TFR1 levels in the hippocampus tissues of HI rats. G6PD deletion impaired the protective role of HSPB1 overexpression against HI brain damage-induced ferroptosis.
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Affiliation(s)
- Yi Dai
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Lan Hu
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
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Banga R, Banga V, Eltalla A, Shahin L, Parag S, Naim M, Iyer E, Kumrah N, Zacharias B, Nathanson L, Beljanski V. Effects of autophagy modulators tamoxifen and chloroquine on the expression profiles of long non-coding RNAs in MIAMI cells exposed to IFNγ. PLoS One 2022; 17:e0266179. [PMID: 35446871 PMCID: PMC9022845 DOI: 10.1371/journal.pone.0266179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/15/2022] [Indexed: 11/18/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) can be utilized clinically for treatment of conditions that result from excessive inflammation. In a pro-inflammatory environment, MSCs adopt an anti-inflammatory phenotype resulting in immunomodulation. A sub-type of MSCs referred to as “marrow-isolated adult multilineage inducible” (MIAMI) cells, which were isolated from bone marrow, were utilized to show that the addition of autophagy modulators, tamoxifen (TX) or chloroquine (CQ), can alter how MIAMI cells respond to IFNγ exposure in vitro resulting in an increased immunoregulatory capacity of the MIAMI cells. Molecularly, it was also shown that TX and CQ each alter both the levels of immunomodulatory genes and microRNAs which target such genes. However, the role of other non-coding RNAs (ncRNAs) such as long non-coding RNAs (lncRNAs) in regulating the response of MSCs to inflammation has been poorly studied. Here, we utilized transcriptomics and data mining to analyze the putative roles of various differentially regulated lncRNAs in MIAMI cells exposed to IFNγ with (or without) TX or CQ. The aim of this study was to investigate how the addition of TX and CQ alters lncRNA levels and evaluate how such changes could alter previously observed TX- and CQ-driven changes to the immunomodulatory properties of MIAMI cells. Data analysis revealed 693 long intergenic non-coding RNAS (lincRNAs), 480 pseudogenes, and 642 antisense RNAs that were differentially regulated with IFNγ, IFNγ+TX and IFNγ+CQ treatments. Further analysis of these RNA species based on the existing literature data revealed 6 antisense RNAs, 2 pseudogenes, and 5 lincRNAs that have the potential to modulate MIAMI cell’s response to IFNγ treatment. Functional analysis of these genomic species based on current literature linking inflammatory response and ncRNAs indicated their potential for regulation of several key pro- and anti-inflammatory responses, including NFκB signaling, cytokine secretion and auto-immune responses. Overall, this work found potential involvement of multiple pro-and anti-inflammatory pathways and molecules in modulating MIAMI cells’ response to inflammation.
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Affiliation(s)
- Rajkaran Banga
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Veerkaran Banga
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Amr Eltalla
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Lauren Shahin
- Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Sonam Parag
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Maha Naim
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Easha Iyer
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Neha Kumrah
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Brian Zacharias
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Lubov Nathanson
- Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
- Institute for Neuroimmune Medicine, Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Vladimir Beljanski
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
- Cell Therapy Institute, Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
- * E-mail:
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Yayla-Tunçer E, Şengelen A, Tan-Recep BZ, Şavluk ÖF, Yilmaz AA, Ceyran H, Önay-Uçar E. Acute Changes in Myocardial Expression of Heat Shock Proteins and Apoptotic Response Following Blood, delNido, or Custodiol Cardioplegia in Infants Undergoing Open-Heart Surgery. Pediatr Cardiol 2022; 43:567-579. [PMID: 34694437 DOI: 10.1007/s00246-021-02759-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/12/2021] [Indexed: 10/20/2022]
Abstract
Stress caused by cardioplegic ischemic arrest was shown to alter the expression levels of heat shock proteins (Hsp), but little is known about their effects, particularly on pediatric hearts. This study aimed to investigate whether myocardial cellular stress and apoptotic response changes due to different cardioplegia (CP) solutions during cardiopulmonary bypass (CPB) in infants and to determine their influence on surgical/clinical outcomes. Therefore, twenty-seven infants for surgical closure of ventricular septal defect were randomly assigned to a CP solution: normothermic blood (BCP), delNido (dNCP), and Custodiol (CCP). Hsp levels and apoptosis were determined by immunoblotting in cardiac tissue from the right atrium before and after CP, and their correlations with cardiac parameters were evaluated. No significant change was observed in Hsp27 levels. Hsp60, Hsp70, and Hsp90 levels decreased significantly in the BCP-group but increased markedly in the CCP-group. Decreased Hsp60 and increased Hsp70 expression were detected in dNCP-group. Importantly, apoptosis was not observed in dNCP- and CCP-groups, whereas marked increases in cleaved caspase-3 and -8 were determined after BCP. Serum cardiac troponin-I (cTn-I), myocardial injury marker, was markedly lower in the BCP- and dNCP-groups than CCP. Additionally, Hsp60, Hsp70, and Hsp90 levels were positively correlated with aortic cross-clamp time, total perfusion time, and cTn-I release. Our findings show that dNCP provides the most effective myocardial preservation in pediatric open-heart surgery and indicate that an increase in Hsp70 expression may be associated with a cardioprotective effect, while an increase in Hsp60 and Hsp90 levels may be an indicator of myocardial damage during CPB.
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Affiliation(s)
- Eylem Yayla-Tunçer
- Pediatric Cardiovascular Surgery Clinic, Kartal Koşuyolu High Specialization Training and Research Hospital, Health Sciences University, Denizer Road No:2, 34846, Cevizli-Kartal/Istanbul, Turkey.
| | - Aslıhan Şengelen
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkey
| | - Berra Zümrüt Tan-Recep
- Pediatric Cardiovascular Surgery Clinic, Kartal Koşuyolu High Specialization Training and Research Hospital, Health Sciences University, Denizer Road No:2, 34846, Cevizli-Kartal/Istanbul, Turkey.,Pediatric Cardiovascular Surgery Clinic, Konya City Hospital, Health Sciences University, Konya, Turkey
| | - Ömer Faruk Şavluk
- Anesthesiology and Reanimation Clinic, Kartal Koşuyolu High Specialization Training and Research Hospital, Health Sciences University, Istanbul, Turkey
| | - Abdullah Arif Yilmaz
- Pediatric Cardiovascular Surgery Clinic, Kartal Koşuyolu High Specialization Training and Research Hospital, Health Sciences University, Denizer Road No:2, 34846, Cevizli-Kartal/Istanbul, Turkey
| | - Hakan Ceyran
- Pediatric Cardiovascular Surgery Clinic, Kartal Koşuyolu High Specialization Training and Research Hospital, Health Sciences University, Denizer Road No:2, 34846, Cevizli-Kartal/Istanbul, Turkey
| | - Evren Önay-Uçar
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Balabanağa, Şehzadebaşı Road, Vezneciler, 34134, Istanbul, Turkey.
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9
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Healy EF, Lilic M. A model for COVID-19-induced dysregulation of ACE2 shedding by ADAM17. Biochem Biophys Res Commun 2021; 573:158-163. [PMID: 34416436 PMCID: PMC8364680 DOI: 10.1016/j.bbrc.2021.08.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/03/2021] [Accepted: 08/13/2021] [Indexed: 01/02/2023]
Abstract
The angiotensin Converting Enzyme 2 (ACE2) receptor is a key component of the renin-angiotensin-aldesterone system (RAAS) that mediates numerous effects in the cardiovascular system. It is also the cellular point of contact for the coronavirus spike protein. Cleavage of the receptor is both important to its physiological function as well as being necessary for cell entry by the virus. Shedding of ACE2 by the metalloprotease ADAM17 releases a catalytically active soluble form of ACE2, but cleavage by the serine protease TMPRSS2 is necessary for virion internalization. Complicating the issue is the observation that circulating ACE2 can also bind to the virus effectively blocking attachment to the membrane-bound receptor. This work investigates the possibility that the inflammatory response to coronavirus infection can abrogate shedding by ADAM17, thereby favoring cleavage by TMPRSS2 and thus cell entry by the virion.
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Affiliation(s)
- Eamonn F Healy
- Department of Chemistry, St. Edward's University, Austin, TX 78704, USA.
| | - Marko Lilic
- Department of Chemistry, St. Edward's University, Austin, TX 78704, USA
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10
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Oliveira KM, Peterson EJ, Carroccia MC, Cominetti MR, Deflon VM, Farrell NP, Batista AA, Correa RS. Ru(II)-Naphthoquinone complexes with high selectivity for triple-negative breast cancer. Dalton Trans 2021; 49:16193-16203. [PMID: 32329497 DOI: 10.1039/d0dt01091j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Six new ruthenium(ii) complexes with lapachol (Lap) and lawsone (Law) with the general formula [Ru(L)(P-P)(bipy)]PF6, where L = Lap or Law, P-P = 1,2'-bis(diphenylphosphino)ethane (dppe), 1,4'-bis(diphenylphosphino)butane (dppb), 1,1'-bis(diphenylphosphino)ferrocene (dppf) and bipy = 2,2'-bipyridine, were synthesized, fully characterized by elemental analysis, molar conductivity, NMR, cyclic voltammetry, UV-vis, IR spectroscopies and three of them by X-ray crystallography. All six complexes were active against breast (MCF-7 and MDA-MB-231) and prostate (DU-145) cancer cell lines with lower IC50 values than cisplatin. Complex [Ru(Lap)(dppe)(bipy)]PF6 (1a) showed significant selectivity for MDA-MB-231, a model of triple-negative breast cancer (TNBC), as compared to the "normal-like" human breast epithelial cell line, MCF-10A. Complex (1a) inhibited TNBC colony formation and induced loss of cellular adhesion. Furthermore, the complex (1a) induced mitochondrial dysfunction and generation of ROS, as is involved in the apoptotic cell death pathway. Preferential cellular uptake of complex (1a) was observed in MDA-MB-231 cells compared to MCF-10A cells, consistent with the observed selectivity for tumorigenic vs. non-tumorigenic cells. Taken together, these results indicate that ruthenium complexes containing lapachol and lawsone as ligands are promising candidates as chemotherapeutic agents.
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Affiliation(s)
- Katia M Oliveira
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luiz, KM 235 CP 676, CEP 13561-901, São Carlos, SP, Brazil.
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11
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Abdelwahab EMM, Bovari-Biri J, Smuk G, Fillinger J, McPhail D, Krymskaya VP, Pongracz JE. Activated p53 in the anti-apoptotic milieu of tuberous sclerosis gene mutation induced diseases leads to cell death if thioredoxin reductase is inhibited. Apoptosis 2021; 26:253-260. [PMID: 33860865 PMCID: PMC8197715 DOI: 10.1007/s10495-021-01670-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2021] [Indexed: 12/17/2022]
Abstract
Tuberous sclerosis, angiomyolipoma and lymphangioleiomyomatosis are a group of diseases characterized by mutation in tuberous sclerosis genes (TSC 1-2). TSC mutation leads to continuous activation of the mTOR pathway that requires adaptation to increased ATP requirement. With limited treatment options, there is an increasing demand to identify novel therapeutic targets and to understand the correlations between mTOR pathway activation and the lack of cell death in the presence of TSC mutation. In the current study, we demonstrate deregulation of p53 controlled and mitochondria associated cell death processes. The study also reveals that treatment of TSC mutant cells with the drug candidate Proxison combined with reduced concentration of rapamycin can increase production of reactive oxygen species (ROS), can modify miRNA expression pattern associated with p53 regulation and can reduce cell viability.
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Affiliation(s)
- ElHusseiny M M Abdelwahab
- Department of Pharmaceutical Biotechnology, University of Pecs, Pecs, Hungary
- Szentagothai Research Centre, University of Pecs, 20 Ifjusag Str., Pecs, 7624, Hungary
| | - Judit Bovari-Biri
- Department of Pharmaceutical Biotechnology, University of Pecs, Pecs, Hungary
- Szentagothai Research Centre, University of Pecs, 20 Ifjusag Str., Pecs, 7624, Hungary
| | - Gabor Smuk
- Department of Pathology, University of Pecs, Pecs, Hungary
| | - Janos Fillinger
- Department of Pathology, Semmelweis University, Budapest, Hungary
- National Koranyi Institute of Pulmonology, Budapest, Hungary
| | | | - Vera P Krymskaya
- Pulmonary, Allergy and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Judit E Pongracz
- Department of Pharmaceutical Biotechnology, University of Pecs, Pecs, Hungary.
- Szentagothai Research Centre, University of Pecs, 20 Ifjusag Str., Pecs, 7624, Hungary.
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Pecs, 2 Rokus Str, Pecs, 7624, Hungary.
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12
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Mitra S, Bagchi A, Dasgupta R. Elucidation of Diverse Physico-Chemical Parameters in Mammalian Small Heat Shock Proteins: A Comprehensive Classification and Structural and Functional Exploration Using In Silico Approach. Appl Biochem Biotechnol 2021; 193:1836-1852. [PMID: 33570730 DOI: 10.1007/s12010-021-03497-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/07/2021] [Indexed: 02/06/2023]
Abstract
Small heat shock proteins (sHSPs), often known as molecular chaperones, are most prevalent in nature. Under certain stress-induced conditions, these sHSPs act as an ATP-independent variation and thus prevent the inactivation of various non-native substrate proteins and their aggregation. They also assist other ATP-dependent chaperones in the refolding of these substrates. In the case of prokaryotes and lower eukaryotes, the chaperone functions of sHSPs can bind a wide range of cellular proteins but preferentially protect translation-related proteins and metabolic enzymes. Eukaryotes usually encode a larger number of sHSPs than those of prokaryotes. The chaperone functions of mammalian sHSPs are regulated by phosphorylation in cells and also by temperature. Their sHSPs have different sub-cellular compartments and cell/tissue specificity. The substrate proteins of mammalian sHSPs or eukaryotic sHSPs accordingly reflect their multi-cellular complexity. The sHSPs of animals play roles in different physiological processes as cell differentiation, apoptosis, and longevity. In this work, the characterization, location, tissue specificity, and functional diversity of sHSPs from seven different mammalian species with special emphasis on humans have been studied. Through this extensive work, a novel and significant attempt have been made to classify them based on their omnipresence, tissue specificity, localization, secondary structure, probable mutations, and evolutionary significance.
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Affiliation(s)
- Sangeeta Mitra
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India
| | - Angshuman Bagchi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India.
| | - Rakhi Dasgupta
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India.
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13
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Lee JC, Sim DY, Lee H, Im E, Choi J, Park JE, Park WY, Jung JH, Shim BS, Kim S. MicroRNA216b
mediated downregulation of
HSP27
/
STAT3
/
AKT
signaling is critically involved in lambertianic acid induced apoptosis in human cervical cancers. Phytother Res 2020; 35:898-907. [DOI: 10.1002/ptr.6842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/10/2020] [Accepted: 07/21/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Jae Chul Lee
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Deok Yong Sim
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Hyo‐Jung Lee
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Eunji Im
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Jhin‐Back Choi
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Ji Eon Park
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Woon Yi Park
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Ji Hoon Jung
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Bum Sang Shim
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
| | - Sung‐Hoon Kim
- College of Korean Medicine Kyung Hee University Seoul Republic of Korea
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14
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Wan Q, Song D, Li H, He ML. Stress proteins: the biological functions in virus infection, present and challenges for target-based antiviral drug development. Signal Transduct Target Ther 2020; 5:125. [PMID: 32661235 PMCID: PMC7356129 DOI: 10.1038/s41392-020-00233-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/26/2020] [Accepted: 06/13/2020] [Indexed: 02/06/2023] Open
Abstract
Stress proteins (SPs) including heat-shock proteins (HSPs), RNA chaperones, and ER associated stress proteins are molecular chaperones essential for cellular homeostasis. The major functions of HSPs include chaperoning misfolded or unfolded polypeptides, protecting cells from toxic stress, and presenting immune and inflammatory cytokines. Regarded as a double-edged sword, HSPs also cooperate with numerous viruses and cancer cells to promote their survival. RNA chaperones are a group of heterogeneous nuclear ribonucleoproteins (hnRNPs), which are essential factors for manipulating both the functions and metabolisms of pre-mRNAs/hnRNAs transcribed by RNA polymerase II. hnRNPs involve in a large number of cellular processes, including chromatin remodelling, transcription regulation, RNP assembly and stabilization, RNA export, virus replication, histone-like nucleoid structuring, and even intracellular immunity. Dysregulation of stress proteins is associated with many human diseases including human cancer, cardiovascular diseases, neurodegenerative diseases (e.g., Parkinson’s diseases, Alzheimer disease), stroke and infectious diseases. In this review, we summarized the biologic function of stress proteins, and current progress on their mechanisms related to virus reproduction and diseases caused by virus infections. As SPs also attract a great interest as potential antiviral targets (e.g., COVID-19), we also discuss the present progress and challenges in this area of HSP-based drug development, as well as with compounds already under clinical evaluation.
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Affiliation(s)
- Qianya Wan
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Dan Song
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Huangcan Li
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Ming-Liang He
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong, China. .,CityU Shenzhen Research Institute, Shenzhen, China.
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15
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Kim N, Ullah I, Chung K, Lee D, Cha MJ, Ban H, Choi CS, Kim S, Hwang KC, Kumar P, Lee SK. Targeted Delivery of Recombinant Heat Shock Protein 27 to Cardiomyocytes Promotes Recovery from Myocardial Infarction. Mol Pharm 2020; 17:2034-2043. [PMID: 32364395 DOI: 10.1021/acs.molpharmaceut.0c00192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ischemic heart disease, especially myocardial infarction (MI), is the leading cause of death worldwide. Apoptotic mechanisms are thought to play a significant role in cardiomyocyte death after MI. Increased production of heat shock proteins (Hsps) in cardiomyocytes is a normal response to promote tolerance and to reduce cell damage. Hsp27 is considered to be a therapeutic option for the treatment of ischemic heart disease due to its protective effects on hypoxia-induced apoptosis. Despite its antiapoptotic effects, the lack of strategies to deliver Hsp27 to the heart tissue in vivo limits its clinical applicability. In this study, we utilized an antibody against the angiotensin II type 1 (AT1) receptor, which is expressed immediately after ischemia/reperfusion in the heart of MI rats. To achieve cardiomyocyte-targeted Hsp27 delivery after ischemia/reperfusion, we employed the immunoglobulin-binding dimer ZZ, a modified domain of protein A, in conjunction with the AT1 receptor antibody. Using the AT1 receptor antibody, we achieved systemic delivery of ZZ-TAT-GFP fusion protein into the heart of MI rats. This approach enabled selective delivery of Hsp27 to cardiomyocytes, rescued cells from apoptosis, reduced the area of fibrosis, and improved cardiac function in the rat MI model, thus suggesting its applicability as a cardiomyocyte-targeted protein delivery system to inhibit apoptosis induced by ischemic injury.
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Affiliation(s)
- Nahyeon Kim
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Samsung Bioepis, Incheon 21987, Korea
| | - Irfan Ullah
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut 06510, United States
| | - Kunho Chung
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut 06510, United States
| | - Dahye Lee
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Green Cross Cell Co., Yongin 16924, Korea
| | - Min-Ji Cha
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Incheon 22711, Korea
| | - Hongseok Ban
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Ildong Pharmaceutical Co., Ltd., Hwaseong 445-710, Korea
| | - Chang Seon Choi
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut 06510, United States
| | - Sunghwa Kim
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea.,LG Household & Health Care, Seoul 150-721, Korea
| | - Ki-Chul Hwang
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Incheon 22711, Korea
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut 06510, United States
| | - Sang-Kyung Lee
- Department of Bioengineering and Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea
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16
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Adenine Nucleotide Translocase 1 Expression is Coupled to the HSP27-Mediated TLR4 Signaling in Cardiomyocytes. Cells 2019; 8:cells8121588. [PMID: 31817787 PMCID: PMC6952976 DOI: 10.3390/cells8121588] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/03/2019] [Accepted: 12/03/2019] [Indexed: 12/21/2022] Open
Abstract
The cardiac-specific overexpression of the adenine nucleotide translocase 1 (ANT1) has cardioprotective effects in various experimental heart disease models. Here, we analyzed the link between ANT1 expression and heat shock protein 27 (HSP27)-mediated toll-like receptor 4 (TLR4) signaling, which represents a novel communication pathway between mitochondria and the extracellular environment. The interaction between ANT1 and HSP27 was identified by co-immunoprecipitation from neonatal rat cardiomyocytes. ANT1 transgenic (ANT1-TG) cardiomyocytes demonstrated elevated HSP27 expression levels. Increased levels of HSP27 were released from the ANT1-TG cardiomyocytes under both normoxic and hypoxic conditions. Extracellular HSP27 stimulated TLR4 signaling via protein kinase B (AKT). The HSP27-mediated activation of the TLR4 pathway was more pronounced in ANT1-TG cardiomyocytes than in wild-type (WT) cardiomyocytes. HSP27-specific antibodies inhibited TLR4 activation and the expression of HSP27. Inhibition of the HSP27-mediated TLR4 signaling pathway with the TLR4 inhibitor oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (OxPAPC) reduced the mitochondrial membrane potential (∆ψm) and increased caspase 3/7 activity, which are both markers for cell stress. Conversely, treating cardiomyocytes with recombinant HSP27 protein stimulated TLR4 signaling, induced HSP27 and ANT1 expression, and stabilized the mitochondrial membrane potential. The activation of HSP27 signaling was verified in ischemic ANT1-TG heart tissue, where it correlated with ANT1 expression and the tightness of the inner mitochondrial membrane. Our study shows a new mechanism by which ANT1 is part of the cardioprotective HSP27-mediated TLR4 signaling.
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17
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Griffith AA, Holmes W. Fine Tuning: Effects of Post-Translational Modification on Hsp70 Chaperones. Int J Mol Sci 2019; 20:ijms20174207. [PMID: 31466231 PMCID: PMC6747426 DOI: 10.3390/ijms20174207] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
The discovery of heat shock proteins shaped our view of protein folding in the cell. Since their initial discovery, chaperone proteins were identified in all domains of life, demonstrating their vital and conserved functional roles in protein homeostasis. Chaperone proteins maintain proper protein folding in the cell by utilizing a variety of distinct, characteristic mechanisms to prevent aberrant intermolecular interactions, prevent protein aggregation, and lower entropic costs to allow for protein refolding. Continued study has found that chaperones may exhibit alternative functions, including maintaining protein folding during endoplasmic reticulum (ER) import and chaperone-mediated degradation, among others. Alternative chaperone functions are frequently controlled by post-translational modification, in which a given chaperone can switch between functions through covalent modification. This review will focus on the Hsp70 class chaperones and their Hsp40 co-chaperones, specifically highlighting the importance of post-translational control of chaperones. These modifications may serve as a target for therapeutic intervention in the treatment of diseases of protein misfolding and aggregation.
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Affiliation(s)
| | - William Holmes
- Rhode Island College, Biology Department, Providence, RI 02908, USA.
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18
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Up-regulation of heat shock protein 27 inhibits apoptosis in lumbosacral nerve root avulsion-induced neurons. Sci Rep 2019; 9:11468. [PMID: 31391542 PMCID: PMC6685944 DOI: 10.1038/s41598-019-48003-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 07/26/2019] [Indexed: 11/29/2022] Open
Abstract
Lumbosacral nerve root avulsion leads to widespread death of neurons in the anterior horn area of the injured spinal cord, which results in dysfunction in the lower extremities. Heat shock protein 27 (Hsp27) has been found to play cytoprotective roles under adverse conditions. However, the role of Hsp27 in neurons after lumbosacral nerve root avulsion is unknown. The aim of the present study was to investigate the effects and mechanism of action of Hsp27 on neurons after lumbosacral nerve root avulsion. It was found that Hsp27 expression was elevated in the anterior horn area of the injured spinal cord and the up-regulation of Hsp27 protected neurons against apoptosis after lumbosacral nerve root avulsion. In addition, Hsp27 plays an anti-apoptotic role by suppressing oxidative stress reactions. These findings indicated that Hsp27 may play a key role in resistance to lumbosacral nerve root avulsion-induced neuron apoptosis and may prove to be a potential strategy for improving prognosis after lumbosacral nerve root avulsion.
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19
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Shan D, Wang H, Khatri P, Niu Y, Song W, Zhao S, Jiang Y, Ma Q, Liu X, Zhang R, Wang W, Yin C. The Urinary Peptidome as a Noninvasive Biomarker Development Strategy for Prenatal Screening of Down's Syndrome. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2019; 23:439-447. [PMID: 31381471 DOI: 10.1089/omi.2019.0098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Prenatal screening for Down's syndrome based on maternal age, ultrasound measures, and maternal serum biomarkers is recommended worldwide, but the false-positive rate and poor diagnostic performance of these screening tests remain problematic. Genetic analysis of cell-free DNA in maternal blood has been developed as a new prenatal screening for Down's syndrome, but it has a number of limitations, including turnaround time and cost. Prenatal screening diagnostic innovation calls for new tests that are noninvasive, accurate, and affordable. We report original observations on potential peptide biomarkers in maternal urine for screening of fetal Down's syndrome. The peptidome of urine samples from 23 pregnant women carrying Down's syndrome fetuses and 30 pregnant women carrying fetuses with normal karyotype was fractionated by weak cation exchange magnetic beads and analyzed by MALDI-TOF mass spectrometry. Levels of six peptides (m/z 1022.1, 1032.1, 1099.5, 1155.9, 1306.6, and 2365.6) were significantly altered between the case and control groups after controlling for maternal and gestational age. A classification model was constructed based on these candidate peptides that could differentiate fetuses with Down's syndrome from controls with a sensitivity of 95.7%, a specificity of 70.0%, and an area under receiver operating characteristic curves of 0.909 (95% confidence interval, 0.835-0.984). Peptide peaks at m/z 1099.5 and 1155.9 were identified as the partial sequences of alpha-1-antitrypsin and heat shock protein beta-1, respectively. These new findings support the new idea that maternal urinary peptidome offers prospects for noninvasive biomarker discovery and development for the prenatal screening of fetal Down's syndrome.
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Affiliation(s)
- Dan Shan
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Hao Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Prekshya Khatri
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Yue Niu
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Wei Song
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Shenglong Zhao
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Yan Jiang
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Qingwei Ma
- Bioyong Technology Co., Ltd., Beijing, China
| | - Xinchao Liu
- Bioyong Technology Co., Ltd., Beijing, China
| | - Rong Zhang
- Bioyong Technology Co., Ltd., Beijing, China
| | - Wei Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia.,School of Public Health, Shandong First Medical University, Taian, China
| | - Chenghong Yin
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
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20
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Bahrami A, Khorasanchi Z, Tayefi M, Avan A, Seifi N, Tavakoly Sany SB, Ferns GA, Bahrami-Taghanaki H, Ghayour-Mobarhan M. Anemia is associated with cognitive impairment in adolescent girls: A cross-sectional survey. APPLIED NEUROPSYCHOLOGY-CHILD 2019; 9:165-171. [DOI: 10.1080/21622965.2018.1550405] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Afsane Bahrami
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Zahra Khorasanchi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Tayefi
- Clinical Research Unit, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Najmeh Seifi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyedeh Belin Tavakoly Sany
- Health Sciences Research Center, Department of Health and Management, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A. Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex BN1 9PH, UK
| | - Hamidreza Bahrami-Taghanaki
- Complementary and Chinese Medicine, Persian and Complementary Medicine Faculty, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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21
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Jing H, Zou G, Hao F, Wang H, Wang S. Hsp27 reduces cold ischemia-reperfusion injury in heart transplantation through regulation of NF-κB and PUMA signaling. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:281-292. [PMID: 31938111 PMCID: PMC6957943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 11/22/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Global myocardial ischemia-reperfusion (I/R) injury after heart transplantation is believed to impair graft function and aggravate episodes of both acute and chronic rejection. The 27-kDa heat shock protein (Hsp27) has a potent ability to alleviate I/R after cardiac transplantation. The aim of this study was to investigate the anti-I/R injury effect of Hsp27 to elucidate the underling mechanisms. METHODS Heart grafts from BALB/c mice were preserved in University of Wisconsin (UW) solution (control) or UW solution containing pAAV-Hsp27 (Hsp27 solution) at 4°C for 48 h and subsequently transplanted into syngeneic recipients for 72 h. The heart grafts were then collected for histopathological and gene expression analyses. An in vitro I/R model (H9c2 cells or H9c2/Hsp27 cells) was constructed. Then, protein and mRNA expression of Hsp27, p65, p53 upregulated modulator of apoptosis (PUMA), interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α in heart tissues and H9c2 cells were detected with western blot and reverse transcription polymerase chain reaction analyses. Caspase-3 activity was detected using a commercial assay, while protein levels of IL-6, IL-1β, and TNF-α were detected using specific enzyme-linked immunosorbent assays. NF-κB activity was detected with an electrophoretic mobility shift assay. Cell apoptosis was detected with the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay and flow cytometric analysis. RESULTS Cold I/R caused severe morphologic myocardial injury of heart grafts from wild type C57BL/c mice, whereas grafts from Hsp27 preservation showed less damage as demonstrated by decreased cell apoptosis/death and the preservation of the normal structure of the heart. Hsp27 inhibited I/R-induced injury as indicated by the reduction in cardiac troponin I activities and decreased cardiac tissue levels of the proinflammatory factors TNF-α, IL-1β, and IL-6. Hsp27 was further demonstrated to significantly inhibit nuclear translocation of p65 and p53 upregulated modulator of apoptosis (PUMA) expression. CONCLUSIONS These results suggested that the cardioprotective effect of Hsp27 could be due to the suppression of the myocardial inflammatory response and apoptosis by blocking the NF-κB-dependent pro-inflammatory and NF-κB-dependent PUMA signaling pathways.
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Affiliation(s)
- Hao Jing
- Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, China
| | - Guangmei Zou
- Department of Cardiology, Yuhuangding Hospital Affiliated to Qingdao UniversityQingdao, China
| | - Fengji Hao
- Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, China
| | - Huimin Wang
- Department of Cardiology, Yuhuangding Hospital Affiliated to Qingdao UniversityQingdao, China
| | - Shizhong Wang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao UniversityQingdao, China
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Zou S, Liao M, Yang J, Huang T, Green M, Wu J, Qu L. Heat shock protein 27 plays a protective role in thoracic aortic dissection by promoting cell proliferation and inhibiting apoptosis. Cell Mol Biol Lett 2017; 22:24. [PMID: 29209372 PMCID: PMC5704392 DOI: 10.1186/s11658-017-0056-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 11/14/2017] [Indexed: 11/10/2022] Open
Abstract
Background Thoracic aortic dissection (TAD) is one of the most severe aortic diseases. The study aimed to explore the potential role of heat shock protein 27 (HSP27) in the pathogenesis of TAD using an in vitro model of oxidative stress in vascular smooth muscle cells (VSMCs). Methods HSP27 was analyzed in aortic surgical specimens from 12 patients with TAD and 8 healthy controls. A lentiviral vector was used to overexpress HSP27 in rat aortic VSMCs. Cell proliferation and apoptosis were measured under oxidative stress induced by H2O2. Results HSP27 expression was significantly higher in aortic tissue from patients with TAD and VSMCs in the aortic media were the main cell type producing HSP27. Elevated oxidative stress was also detected in the TAD samples. Overexpression of HSP27 significantly attenuated H2O2-induced inhibition of cell proliferation. Furthermore, HSP27 was found to decrease H2O2-induced cell apoptosis and oxidative stress. Conclusions These results suggest that HSP27 expression promotes VSMC viability, suppresses cell apoptosis, and confers protection against oxidative stress in TAD.
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Affiliation(s)
- Sili Zou
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
| | - Mingfang Liao
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
| | - Junlin Yang
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
| | - Tong Huang
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
| | - Mark Green
- DICAT Biomedical Computation Centre, Vancouver, BC Canada
| | - Jianjin Wu
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
| | - Lefeng Qu
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, the Second Military Medical University, 415 Fengyang Road, Shanghai, People's Republic of China
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Panda S, Kar A, Biswas S. Preventive effect of Agnucastoside C against Isoproterenol-induced myocardial injury. Sci Rep 2017; 7:16146. [PMID: 29170391 PMCID: PMC5701045 DOI: 10.1038/s41598-017-16075-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 10/23/2017] [Indexed: 12/22/2022] Open
Abstract
An iridoid glycoside, agnucastoside C (ACC) was isolated from the leaves of Moringa oliefera and its cardio protective potential was investigated in adult rats by examining the effects of this test compound, ACC at 30 mg/kg for 14 days in isoproterenol (100 mg/kg)-induced myocardial injury. Isoproterenol (ISO) administration induced the myocardial injury as evidenced by the altered ECG pattern with ST-segment elevation and an increase in the levels of cardiac injury markers including troponin-I, creatine kinase-MB, alanine transaminase, aspartate transaminase, lactate dehydrogenase; inflammatory markers, interleukine-6 and tumor necrosis factor. In this group, there was also an increase in cardiac lipid peroxidation and a decrease in cellular antioxidants. However, pretreatment with ACC maintained the normal ECG pattern and nearly normal levels of all the cardiac markers in ISO-induced animals. Electron microscopic and histological studies also showed marked reduction in ISO-induced cardiac damages including infarct size by ACC. Analysis by 2-DE revealed the involvement of 19 different cardiac proteins, associated with energy metabolism, oxidative stress and maintenance of cytoskeleton. The expression of those proteins were altered by ISO, but maintained in ACC pretreated rats. Our findings reveal the potential of isolated ACC in the prevention of myocardial damage.
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Affiliation(s)
- Sunanda Panda
- School of Life Sciences, Takshashila Campus, Devi Ahilya University, Indore, India
| | - Anand Kar
- School of Life Sciences, Takshashila Campus, Devi Ahilya University, Indore, India.
| | - Sagarika Biswas
- Department of Genomics & Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
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Xia F, Yao X, Tang W, Xiao C, Yang M, Zhou B. Isobaric Tags for Relative and Absolute Quantitation (iTRAQ)-Based Proteomic Analysis of Hugan Qingzhi and Its Protective Properties against Free Fatty Acid-Induced L02 Hepatocyte Injury. Front Pharmacol 2017; 8:99. [PMID: 28293193 PMCID: PMC5329039 DOI: 10.3389/fphar.2017.00099] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/16/2017] [Indexed: 12/27/2022] Open
Abstract
In previous research, Hugan Qingzhi, a traditional Chinese medicine, was shown to have protective effects against hepatic steatosis. However, its activity against non-alcoholic fatty liver disease (NAFLD) and the mechanisms by which it exerts its effects remain unknown. In the present study, the effects of Hugan Qingzhi on free fatty acid (FFA)-induced L02 cells were examined. The techniques of iTRAQ labeling, together with strong cation exchange-non-liquid chromatography–tandem mass spectrometry (SCX-non-LC-MS/MS) analysis and serum pharmacology, were used to evaluate the effects of Hugan Qingzhi-medicated serum on FFA-induced L02 hepatocyte injury. Results identified 355 differentially expressed proteins following FFA treatment, compared with a control group; 359 altered proteins in the Hugan Qingzhi high dose + FFA treatment group, compared with the FFA treatment group; and 365 altered proteins in the Hugan Qingzhi high dose + FFA treatment group, compared with the control group. Based on the Kyoto Encyclopedia of Gene and Genomes pathway enrichment analysis, it is concluded that several pathways including those of microbial metabolism in diverse environments, fatty acid metabolism, peroxisome proliferator activated receptor signaling, and mitogen-activated protein kinase signaling are closely associated with the effects of Hugan Qingzhi-medicated serum in FFA-induced L02 hepatocyte injury. Furthermore, several differentially expressed proteins, including heat shock protein 27 (HSP27), acetyl-CoA acetyltransferase 1, calnexin, and integrin-linked kinase, were validated by western blotting. A target-specific HSP27 siRNA was used to investigate further the function of HSP27, and it was found that HSP27 might have a key role in the observable effects of Hugan Qingzhi-medicated serum in FFA-induced L02 hepatocyte injury. The results not only confirmed that Hugan Qingzhi exhibits a significant protective effect in FFA-induced L02 hepatocyte injury, but also suggest insights into the mechanism of such protective effects.
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Affiliation(s)
- Fan Xia
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
| | - Xiaorui Yao
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
| | - Waijiao Tang
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
| | - Chunxin Xiao
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
| | - Miaoting Yang
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
| | - Benjie Zhou
- Center for Drug Research and Development, Zhujiang Hospital, Southern Medical University Guangzhou, China
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Homaei-Shandiz F, Mehrad-Majd H, Tasbandi M, Aledavood A, Tavakol Afshari J, Ghavami V, Ghayour-Mobarhan M. Anti-Heat Shock Protein-27 Antibody Levels in Women with Breast Cancer: Association with Disease Complications and Two-Year Disease-Free Survival. Asian Pac J Cancer Prev 2016; 17:4655-4659. [PMID: 27892679 PMCID: PMC5454612 DOI: 10.22034/apjcp.2016.17.10.4655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background and Aim: Breast cancer is a major healthcare problem in women. There are many reports about up-regulation of Hsp27 in cancer tissues but less is known about the potential relationship between Hsp27 antibody levels and breast cancer complications. We here investigated concentrations of serum Hsp27 antigen and antibodies in subjects with and without breast cancer and assessed potential associations with two-year disease-free survival, histological grade and number of lymph nodes. Materials and Methods: Specifically, serum Hsp27 antigen and antibody levels from 97 patients with breast cancer, and 65 healthy controls were determined by enzyme-linkedimmunosorbent assays (ELISAs). Results: Serum Hsp27 and antibody levels were significantly (p<0.001) higher in patients with breast cancer compared to the control group, but no relationship were found with two-year disease free survival, histological grade or number of lymph nodes (p> 0.6, 0.2 and 0.9 respectively). Conclusions: Elevated levels of Hsp27 antibody occur with women with breast cancer but do not appear to be associated with the presence of disease clinical complications.
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Stefanus R, Yolanda S, Antarianto RD. Comparison of GFAP and HSP27 concentrations in acute moderate-intensity aerobic exercise of different duration. MEDICAL JOURNAL OF INDONESIA 2016. [DOI: 10.13181/mji.v25i2.1267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Background: Glial fibrillary acidic protein (GFAP) and heat shock protein -27 (HSP27) plasma can be used as the parameters of exercise-induced astrocyte reactivity. The American College of Sports Medicine (ACSM) recommends an exercise of 30 minutes or 10 minutes duration (each performing bout accumulated toward 30 minutes). The aim of this study was to compare GFAP and HSP27 plasma concentrations in young adults undergoing acute moderate-intensity aerobic exercise of different durations (10 minutes vs 30 minutes).Methods: An experimental study with pre-post design was conducted on 22 participants assigned to either 10 minutes or 30 minutes duration of single bout exercise. Blood sampling was performed before and after the exercise. GFAP and HSP27 plasma levels were measured with ELISA methods. Plasma GFAP and HSP27 levels before and after exercise were analyzed using paired t -test, while GFAP and HSP27 levels after exercise between the two groups were processed using unpaired t-test.Results: Plasma GFAP concentration decreased significantly (0,45 ng/mL) after 30 minutes of aerobic exercise (p<0.05). Plasma HSP27 concentration decreased significantly (1,71 ng/mL) after 10 minutes of aerobic exercise (p<0.05). No significant difference in plasma GFAP and HSP27 concentrations between 10 minutes (GFAP=0.49 ng/mL; HSP27=2.09 ng/mL) and 30 minutes duration of exercise (GFAP=0.45 ng/mL; HSP27=1,71 ng/mL).Conclusion: Acute moderate-intensity aerobic exercise with 10- and 30-minutes duration reduces the reactivity of astrocytes indication the increase of the synapse plasticity. The decrease in GFAP concentration occurred after 30 minutes of exercise and the decrease in HSP27 occurred after 10 minutes of exercise. These results showed that the body responds differently to different treatment duration in order to obtain the same effect on the body.
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27
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Choi SH, Nam JK, Kim BY, Jang J, Jin YB, Lee HJ, Park S, Ji YH, Cho J, Lee YJ. HSPB1 Inhibits the Endothelial-to-Mesenchymal Transition to Suppress Pulmonary Fibrosis and Lung Tumorigenesis. Cancer Res 2016; 76:1019-30. [PMID: 26744531 DOI: 10.1158/0008-5472.can-15-0952] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 11/30/2015] [Indexed: 12/17/2022]
Abstract
The endothelial-to-mesenchymal transition (EndMT) contributes to cancer, fibrosis, and other pathologic processes. However, the underlying mechanisms are poorly understood. Endothelial HSP1 (HSPB1) protects against cellular stress and has been implicated in cancer progression and pulmonary fibrosis. In this study, we investigated the role of HSPB1 in mediating the EndMT during the development of pulmonary fibrosis and lung cancer. HSPB1 silencing in human pulmonary endothelial cells accelerated emergence of the fibrotic phenotype after treatment with TGFβ or other cytokines linked to pulmonary fibrosis, suggesting that HSPB1 maintains endothelial cell identity. In mice, endothelial-specific overexpression of HSPB1 was sufficient to inhibit pulmonary fibrosis by blocking the EndMT. Conversely, HSPB1 depletion in a mouse model of lung tumorigenesis induced the EndMT. In clinical specimens of non-small cell lung cancer, HSPB1 expression was absent from tumor endothelial cells undergoing the EndMT. Our results showed that HSPB1 regulated the EndMT in lung fibrosis and cancer, suggesting that HSPB1-targeted therapeutic strategies may be applicable for treating an array of fibrotic diseases.
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Affiliation(s)
- Seo-Hyun Choi
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Jae-Kyung Nam
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Bu-Yeo Kim
- Division of Constitutional Medicine Research, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Junho Jang
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Young-Bae Jin
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Hae-June Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Seungwoo Park
- Research Center for Radiotherapy, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Young Hoon Ji
- Research Center for Radiotherapy, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon-Jin Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
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Wang X, Wu Q, Wan D, Liu Q, Chen D, Liu Z, Martínez-Larrañaga MR, Martínez MA, Anadón A, Yuan Z. Fumonisins: oxidative stress-mediated toxicity and metabolism in vivo and in vitro. Arch Toxicol 2015; 90:81-101. [PMID: 26419546 DOI: 10.1007/s00204-015-1604-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/11/2015] [Indexed: 10/23/2022]
Abstract
Fumonisins (FBs) are widespread Fusarium toxins commonly found as corn contaminants. FBs could cause a variety of diseases in animals and humans, such as hepatotoxic, nephrotoxic, hepatocarcinogenic and cytotoxic effects in mammals. To date, almost no review has addressed the toxicity of FBs in relation to oxidative stress and their metabolism. The focus of this article is primarily intended to summarize the progress in research associated with oxidative stress as a plausible mechanism for FB-induced toxicity as well as the metabolism. The present review showed that studies have been carried out over the last three decades to elucidate the production of reactive oxygen species (ROS) and oxidative stress as a result of FBs treatment and have correlated them with various types of FBs toxicity, indicating that oxidative stress plays critical roles in the toxicity of FBs. The major metabolic pathways of FBs are hydrolysis, acylation and transamination. Ceramide synthase, carboxylesterase FumD and aminotransferase FumI could degrade FB1 and FB2. The cecal microbiota of pigs and alkaline processing such as nixtamalization can also transform FB1 into metabolites. Most of the metabolites of FB1 were less toxic than FB1, except its partial (pHFB1) metabolites. Further understanding of the role of oxidative stress in FB-induced toxicity will throw new light on the use of antioxidants, scavengers of ROS, as well as on the blind spots of metabolism and the metabolizing enzymes of FBs. The present review might contribute to reveal the toxicity of FBs and help to protect against their oxidative damage.
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Affiliation(s)
- Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,Departamento de Toxicología y Farmacología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, China.,Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Dan Wan
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Qianying Liu
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Dongmei Chen
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Zhenli Liu
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - María Rosa Martínez-Larrañaga
- Departamento de Toxicología y Farmacología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - María Aránzazu Martínez
- Departamento de Toxicología y Farmacología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Arturo Anadón
- Departamento de Toxicología y Farmacología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Zonghui Yuan
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, 430070, Hubei, China. .,MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, 430070, Hubei, China. .,Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China.
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Kameritsch P, Kiemer F, Beck H, Pohl U, Pogoda K. Cx43 increases serum induced filopodia formation via activation of p21-activated protein kinase 1. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:2907-17. [PMID: 26255026 DOI: 10.1016/j.bbamcr.2015.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/13/2015] [Accepted: 08/04/2015] [Indexed: 01/02/2023]
Abstract
In a previous study we could show that connexin 43 (Cx43) expression increased the migration of cells in a channel-independent manner involving the MAPK p38. We analyzed here the mechanism by which Cx43 enhanced p38 activation and migration related changes of the actin cytoskeleton. HeLa cells were used as a model system for the controlled expression of Cx43 and truncated Cx43 proteins. The expression of Cx43 altered the actin cytoskeleton organization in response to serum stimulation. Cx43 expressing HeLa cells had significantly more filopodial protrusions per cell than empty-vector transfected control cells. The expression of the channel incompetent carboxyl tail of Cx43 was sufficient to enhance the filopodia formation whereas the N-terminal, channel-building part, had no such effect. The enhanced filopodia formation was p38 dependent since the p38 blocker SB203580 significantly diminished it. Immunoprecipitation revealed an interaction of the upstream regulator of p38, p21-activated protein kinase 1 (PAK1), with Cx43 resulting in an enhanced phosphorylation of PAK1. Moreover, p38 activation, filopodia formation and cell migration were significantly reduced by blocking the PAK1 activity with its pharmacological inhibitor, IPA-3. The p38 target Hsp27, which favors the actin polymerization in its phosphorylated form, was significantly more phosphorylated characterizing it as a potential candidate molecule to enhance the serum-induced actin polymerization in Cx43 expressing cells. Our results provide a novel mechanism by which Cx43 can modify actin cytoskeletal dynamics and may thereby enhance cell migration.
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Affiliation(s)
- Petra Kameritsch
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München and Munich University Hospital, Marchioninistr. 27, 81377 München, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Biedersteiner Str. 29, 80802 München, Germany.
| | - Felizitas Kiemer
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München and Munich University Hospital, Marchioninistr. 27, 81377 München, Germany.
| | - Heike Beck
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München and Munich University Hospital, Marchioninistr. 27, 81377 München, Germany.
| | - Ulrich Pohl
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München and Munich University Hospital, Marchioninistr. 27, 81377 München, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Biedersteiner Str. 29, 80802 München, Germany; Munich Cluster for Systems Neurology (SyNergy), Feodor-Lynen-Str. 17, 81377 München, Germany.
| | - Kristin Pogoda
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München and Munich University Hospital, Marchioninistr. 27, 81377 München, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Biedersteiner Str. 29, 80802 München, Germany.
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Abstract
Background:We studied α-B-crystallin, a small heat shock chaperone protein upregulated by various “stresses”, as an immunocytochemical tissue marker of epileptic foci.Methods:We examined 45 resected brain tissues of epileptic patients, 16 months to 23 years. Postmortem brains of 2 epileptic children and 20 normal fetuses and neonates of 10-41 weeks gestation similarly were studied. Immunocytochemical demonstration of α-B-crystallin was supplemented by neuronal, glial and inflammatory cell markers and electron microscopy (EM) in surgical cases. Autopsy brain tissue of children without epilepsy or neurological disease served as controls.Results:In all resections, α-B-crystallin was overexpressed in astrocytes and oligodendrocytes, including satellite cells adherent to neurons, and occasionally in neurons of neocortex, hippocampus and amygdala. In six cases, reactivity was most intense at or near the epileptic focus, with a diminishing gradient of intensity for 2-3 cm; similar focal expression was seen in autopsy cases. Presence or absence of histological structural lesions was independent of α-B-crystallin expression. Balloon cells and giant atypical cells in tuberous sclerosis were intensely reactive. Reactivity was present in DNETs. No correlation occurred with microglial activation, inflammation or gliosis; no ultrastructural alterations were seen. No expression was seen in fetal brains at any age.Conclusions:Immunoreactive α-B-crystallin is a reliable tissue marker of epileptic foci, regardless of presence or absence of structural lesions; at times it maps the extent of a focus.
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Jin C, Phillips VL, Williams MJ, van Rij AM, Jones GT. Plasma heat shock protein 27 is associated with coronary artery disease, abdominal aortic aneurysm and peripheral artery disease. SPRINGERPLUS 2014; 3:635. [PMID: 25392804 PMCID: PMC4218927 DOI: 10.1186/2193-1801-3-635] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 10/20/2014] [Indexed: 11/24/2022]
Abstract
Low protein levels of Hsp27 have been reported in atherosclerotic plaques. In addition, human studies have indicated that circulating Hsp27 levels are lower in coronary artery disease patients compared with controls. It remains, however, unclear whether this applies to other forms of atherosclerotic disease. Plasma Hsp27 from 280 subjects was examined by ELISA. The cohort included 80 coronary artery disease (CAD), 40 peripheral artery disease (PAD) and 80 abdominal aortic aneurysm (AAA) patients. Eighty elderly subjects, without any clinical history of vascular diseases, were used as a control group. Receiver operating curve (ROC) and logistic regression model analysis were performed to evaluate the potential value of Hsp27 as a circulating biomarker. Patients with atherosclerotic vascular diseases had significantly lower levels of Hsp27 than control subjects (p < 0.001). Moreover, Hsp27 was significantly lower in CAD patients than other atherosclerotic vascular disease groups (p < 0.001). There was no difference in Hsp27 levels between the AAA and PAD groups. Using the ROC-generated optimal cut-off values for Hsp27, logistic regression modeling indicated that low plasma Hsp27 was independently associated with the presence of multiple forms of atherosclerotic disease. In conclusion, circulating Hsp27 is significantly lower in patients with multiple forms of atherosclerotic arterial disease.
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Affiliation(s)
- Cao Jin
- Department of Surgery, University of Otago, PO Box 913, Dunedin, New Zealand
| | - Victoria L Phillips
- Department of Surgery, University of Otago, PO Box 913, Dunedin, New Zealand
| | - Michael Ja Williams
- Department of Medicine, University of Otago, PO Box 913, Dunedin, New Zealand
| | - Andre M van Rij
- Department of Surgery, University of Otago, PO Box 913, Dunedin, New Zealand
| | - Gregory T Jones
- Department of Surgery, University of Otago, PO Box 913, Dunedin, New Zealand
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Yan Z, Wei H, Ren C, Yuan S, Fu H, Lv Y, Zhu Y, Zhang T. Gene expression of Hsps in normal and abnormal embryonic development of mouse hindlimbs. Hum Exp Toxicol 2014; 34:563-74. [PMID: 25352652 DOI: 10.1177/0960327114555927] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Heat shock proteins (Hsps), which have important biological functions, are a class of highly conserved genetic molecules with the capacity of protecting and promoting cells to repair themselves from damage caused by various stimuli. Our previous studies found that Hsp25, HspB2, HspB3, HspB7, Hsp20, HspB9, HspB10, and Hsp40 may be related to all-trans retinoic acid (atRA)-induced phocomelic and other abnormalities, while HspA12B, HspA14, Trap1, and Hsp105 may be forelimb development-related genes; Grp78 may play an important role in forelimb development. In this study, the embryonic phocomelic, oligodactylic model of both forelimbs and hindlimbs was developed by atRA administered per os to the pregnant mice on gestational day 11, and the expression of 36 members of Hsps family in normal and abnormal development of embryonic hindlimbs was measured by real-time fluorescent quantitative polymerase chain reaction (qRT-PCR). It is found that HspA1L, Hsp22, Hsp10, Hsp60, Hsp47, HspB2, HspB10, HspA12A, Apg1, HspB4, Grp78, and HspB9 probably performs a major function in limb development, and HspA13, Grp94 and Hsp110 may be hindlimb development-related genes.
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Affiliation(s)
- Zhengli Yan
- Medical School, Hunan Normal University, Changsha, People's Republic of China
| | - Huimiao Wei
- Department of Health Toxicology, Second Military Medical University, Shanghai, People's Republic of China
| | - Chuanlu Ren
- Department of Laboratory, No.100 Hospital of CPLA, Suzhou, People's Republic of China
| | - Shishan Yuan
- Medical School, Hunan Normal University, Changsha, People's Republic of China
| | - Hu Fu
- Medical School, Hunan Normal University, Changsha, People's Republic of China
| | - Yuan Lv
- Medical School, Hunan Normal University, Changsha, People's Republic of China
| | - Yongfei Zhu
- Medical School, Hunan Normal University, Changsha, People's Republic of China
| | - Tianbao Zhang
- Department of Health Toxicology, Second Military Medical University, Shanghai, People's Republic of China
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Abstract
Atherosclerosis is the leading global cause of mortality, morbidity, and disability. Heat shock proteins (HSPs) are a highly conserved family of proteins with diverse functions expressed by all cells exposed to environmental stress. Studies have reported that several HSPs may be potential risk markers of atherosclerosis and related cardiovascular diseases, or may be directly involved in the atherogenic process itself. HSPs are expressed by cells in atherosclerotic plaque and anti-HSP has been reported to be increased in patients with vascular disease. Autoimmune responses may be generated against antigens present within the atherosclerotic plaque, including HSP and may lead to a cycle of ongoing vascular injury. It has been suggested that by inducing a state of tolerance to these antigens, the atherogenic process may be limited and thus provide a potential therapeutic approach. It has been suggested that anti-HSPs are independent predictors of risk of vascular disease. In this review, we summarize the current understanding of HSP in cardiovascular disease and highlight their potential role as diagnostic agents and therapeutic targets.
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Structural Properties of Silkworm Small Heat-Shock Proteins: sHSP19.9 and sHSP20.8. Biosci Biotechnol Biochem 2014; 74:1556-63. [DOI: 10.1271/bbb.100131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Transduced protein transduction domain linked HSP27 protected LECs against UVB radiation-induced damage. Exp Eye Res 2014; 120:36-42. [PMID: 24444493 DOI: 10.1016/j.exer.2013.12.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 12/05/2013] [Accepted: 12/30/2013] [Indexed: 11/23/2022]
Abstract
PTD-fusion protein technology was used to transduce heat shock protein 27 (HSP27), an anti-apoptotic protein, into human lens epithelial cells (HLECs) (SRA01/04). The protein transduction domain (PTD) of the 11-amino acid YGRKKRRQRRR was tagged at the N-terminus of HSP27. The fusion protein was purified from bacteria transformed with a pKYB-PTD-HSP27 construct. The HLECs were incubated with PTD-HSP27-FITC and the fluorescence inside HLECs was found by fluorescence microscopic examination. To test the ability of PTD-HSP27 to pass through the corneas, PTD-HSP27-FITC was dropped onto the conjunctival sacs of rabbits; fluorescent labeled PTD-HSP27 was then observed in the rabbit aqueous humor. After being incubated with the PTD-HSP27 protein and irradiated with ultraviolet-B (UVB) light, HLECs was analyzed by flow cytometry, Hoechst 33258 staining and measurement of the potential of the mitochondrial transmembrane. HLECs incubated with PTD-HSP27 had a lower apoptotic rate and a higher mitochondrial membrane potential than the control cells. PTD-HSP27 appears to be sufficient to protect HLECs against UVB-induced apoptosis.
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Ghahramanlu E, Banihashem A, Mirhossini NZ, Hosseini G, Mostafavi-Toroghi H, Tavallaie S, Meshkat M, Ghayour-Mobarhan M, Ferns G. Effect of zinc supplementation on serum antibody titers to heat shock protein 27 in patients with thalassemia major. Hematology 2013; 19:113-9. [DOI: 10.1179/1607845413y.0000000099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Elham Ghahramanlu
- Blood Transfusion Research CenterHigh Institute for Research and Education in Transfusion Medicine, North Khorasan, Iran
| | - Abdollah Banihashem
- Hematology DepartmentSheikh Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Naghme-Zahra Mirhossini
- Biochemistry of Nutrition Research Center and Cardiovascular Research Center Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Golkoo Hosseini
- Biochemistry of Nutrition Research Center and Cardiovascular Research Center Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hesam Mostafavi-Toroghi
- Biochemistry of Nutrition Research Center and Cardiovascular Research Center Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shima Tavallaie
- Biochemistry of Nutrition Research Center and Cardiovascular Research Center Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Meshkat
- Department of BiostatisticsIslamic Azad University, Mashhad Branch, Mashhad, Iran
| | - Majid Ghayour-Mobarhan
- Biochemistry of Nutrition Research Center and Cardiovascular Research Center Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon Ferns
- Institute for Science & Technology in Medicine, Faculty of Health, University of Keele, Staffordshire ST4 7QB, UK
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Almeida-Souza L, Asselbergh B, De Winter V, Goethals S, Timmerman V, Janssens S. HSPB1 facilitates the formation of non-centrosomal microtubules. PLoS One 2013; 8:e66541. [PMID: 23826100 PMCID: PMC3691211 DOI: 10.1371/journal.pone.0066541] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 05/07/2013] [Indexed: 11/19/2022] Open
Abstract
The remodeling capacity of microtubules (MT) is essential for their proper function. In mammals, MTs are predominantly formed at the centrosome, but can also originate from non-centrosomal sites, a process that is still poorly understood. We here show that the small heat shock protein HSPB1 plays a role in the control of non-centrosomal MT formation. The HSPB1 expression level regulates the balance between centrosomal and non-centrosomal MTs. The HSPB1 protein can be detected specifically at sites of de novo forming non-centrosomal MTs, while it is absent from the centrosomes. In addition, we show that HSPB1 binds preferentially to the lattice of newly formed MTs in vitro, suggesting that its function occurs by stabilizing MT seeds. Our findings open new avenues for the understanding of the role of HSPB1 in the development, maintenance and protection of cells with specialized non-centrosomal MT arrays.
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Affiliation(s)
- Leonardo Almeida-Souza
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- Neurogenetics Laboratory, Institute Born Bunge, University of Antwerp, Antwerpen, Belgium
| | - Bob Asselbergh
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- Neurogenetics Laboratory, Institute Born Bunge, University of Antwerp, Antwerpen, Belgium
| | - Vicky De Winter
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- Neurogenetics Laboratory, Institute Born Bunge, University of Antwerp, Antwerpen, Belgium
| | - Sofie Goethals
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- Neurogenetics Laboratory, Institute Born Bunge, University of Antwerp, Antwerpen, Belgium
| | - Vincent Timmerman
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- Neurogenetics Laboratory, Institute Born Bunge, University of Antwerp, Antwerpen, Belgium
- * E-mail: (VT); (SJ)
| | - Sophie Janssens
- Department of Molecular Genetics, VIB and University of Antwerp, Antwerpen, Belgium
- GROUP-ID Consortium, Laboratory for Immunoregulation and Mucosal Immunology, University of Ghent, Ghent, Belgium
- Department of Molecular Biomedical Research, VIB, Ghent, Belgium
- * E-mail: (VT); (SJ)
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Ni XX, Ni M, Fan DF, Sun Q, Kang ZM, Cai ZY, Liu Y, Liu K, Li RP, Xu WG. Heat-shock protein 70 is involved in hyperbaric oxygen preconditioning on decompression sickness in rats. Exp Biol Med (Maywood) 2013; 238:12-22. [PMID: 23479759 DOI: 10.1258/ebm.2012.012101] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Decompression sickness (DCS) is a major concern in diving and space walk. Hyperbaric oxygen (HBO) preconditioning has been proved to enhance tolerance to DCS via nitric oxide. Heat-shock protein (HSP) 70 was also found to have protective effects against DCS. We hypothesized that the beneficial effects of HBO preconditioning on DCS was related to levels of elevated HSP70. HSPs (70, 27 and 90) expressed in tissues of spinal cord and lung in rats was detected at different time points following HBO exposure by Western blot. HSP27 and HSP90 showed a slight but not significant increase after HBO. HSP70 increased and reached highest at 18 h following exposure before decreasing. Then rats were exposed to HBO and subjected to simulated air dive and rapid decompression to induce DCS 18 h after HBO. The severity of DCS, along with levels of HSP70 expression, as well as the extent of oxidative and apoptotic parameters in the lung and spinal cord were compared among different groups of rats pretreated with HBO, HBO plus NG-nitro-l-arginine-methyl ester (l-NAME), HBO plus quercetin or normobaric air. HBO preconditioning significantly reduced the morbidity of DCS (from 66.7% to 36.7%), reduced levels of oxidation (malondialdehyde, 8-hydroxyguanine and hydrogen peroxide) and apoptosis (caspase-3 and -9 activities and the number of apoptotic cells). l-NAME or quercetin eliminated most of the beneficial effects of HBO on DCS, and counteracted the stimulation of HSP70 by HBO. Bubbles in pulmonary artery were detected using ultrasound imaging to observe the possible effect of HBO preconditioning on DCS bubble formation. The amounts of bubbles in rats pretreated with HBO or air showed no difference. These results suggest that HSP70 was involved in the beneficial effects of HBO on DCS in rats, suspected be by the antioxidation and antiapoptosis effects.
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Affiliation(s)
- Xiao-Xiao Ni
- Department of Diving Medicine, The Second Military Medical University, 800 Xiangyin Road Shanghai 200433, China
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Carbone F, Nencioni A, Mach F, Vuilleumier N, Montecucco F. Evidence on the pathogenic role of auto-antibodies in acute cardiovascular diseases. Thromb Haemost 2013; 109:854-68. [PMID: 23446994 DOI: 10.1160/th12-10-0768] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 01/29/2013] [Indexed: 02/06/2023]
Abstract
Atherothrombosis is the major determinant of acute ischaemic cardiovascular events, such as myocardial infarction and stroke. Inflammatory processes have been linked to all phases of atherogenesis In particular, the identification of autoimmunity mediators in the complex microenvironment of chronic inflammation has become the focus of attention in both early and advanced atherogenic processes. Auto-antibodies against self-molecules or new epitopes generated by oxidative processes infiltrate atherosclerotic plaques and were shown to modulate the activity of immune cells by binding various types of receptors. However, despite mounting evidence for a pathophysiological role of autoantibodies in atherothrombosis, the clinical relevance for circulating autoantibodies in cardiovascular outcomes is still debated. This review aims at illustrating the mechanisms by which different types of autoantibodies might either promote or repress atherothrombosis and to discuss the clinical studies assessing the role of auto-antibodies as prognostic biomarkers of plaque vulnerability.
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Affiliation(s)
- F Carbone
- Cardiology Division, Department of Medicine, Geneva University Hospital, Foundation for Medical Researches, 64 Avenue Roseraie, Geneva, Switzerland
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40
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Shin SH, Lee J, Lim KS, Rhim T, Lee SK, Kim YH, Lee KY. Sequential delivery of TAT-HSP27 and VEGF using microsphere/hydrogel hybrid systems for therapeutic angiogenesis. J Control Release 2013; 166:38-45. [DOI: 10.1016/j.jconrel.2012.12.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/21/2012] [Accepted: 12/12/2012] [Indexed: 11/26/2022]
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Wang JJ, Liu Y, Zheng Y, Lin F, Cai GF, Yao XQ. Comparative proteomics analysis of colorectal cancer. Asian Pac J Cancer Prev 2013; 13:1663-6. [PMID: 22799385 DOI: 10.7314/apjcp.2012.13.4.1663] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Protein expression in colon and rectal cancer (CRC) and paired normal tissues was examined by two-dimensional gel electrophoresis (2-DE) to identify differentially expressed proteins. MATERIALS AND METHODS Five fresh colorectal cancer and paired adjacent normal tissues were obtained and differentially expressed protein spots were determined using PDQuest software, with identification on the basis of MALDI- TOF mass spectra. RESULTS Compared with normal colorectal mucosa, protein abnormal expression of 65 spots varying more than 1.5 times were found in 2-DE gels from colorectal cancer samples (P<0.05); forty-two proteins were up-regulated and 23 were down-regulated; twelve protein spots were identified using mass spectrometry, of which 8 were up-regulated, including HSPB1 and Annexin A4, while 4 were down-regulated, the results being consistent with Western blot findings. CONCLUSIONS Two-dimensional electrophoresis reference maps for CRC tissues and adjacent normal mucosa (NMC) were established and 12 differentially expressed proteins were identified. Up-regulated HSPB1 and Annexin A4 may play many important roles in the pathogenesis of colorectal cancer.
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Affiliation(s)
- Jun-Jiang Wang
- Department of Gastrointestinal Surgery, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China
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42
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Ghahremanlu E, Banihashem A, Saber H, Tavallaie S, Mirhosseini N, Ghayour-Mobarhan M, Ferns GAA. Increased serum heat shock protein 27 antibody titers and prooxidant-antioxidant balance in patients with beta-thalassemia major. Acta Haematol 2013; 129:1-9. [PMID: 22964881 DOI: 10.1159/000339502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 05/09/2012] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Determination of the serum heat shock protein 27 (Hsp27) antibody titers and prooxidant-antioxidant balance (PAB) in patients with thalassemia as markers of cell and oxidative stress, respectively. METHODS Serum PAB and anti-Hsp27 antibody titers were measured in 140 patients with thalassemia major and 140 sex- and age-matched healthy volunteers. RESULTS A significantly higher serum PAB value was observed in patients in comparison to controls. In the patient group, anti-Hsp27 antibody titers were significantly higher than for the control group (p < 0.001). We found a weak negative correlation between anti-Hsp27 antibody concentrations and the PAB (p = 0.03), but these values were not correlated with serum superoxide dismutase activity in the thalassemic patients. CONCLUSIONS Increased levels of serum PAB and Hsp27 antibodies may be involved in the pathological consequences of β-thalassemia major and may contribute to the development of endothelial injury.
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Affiliation(s)
- Elham Ghahremanlu
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Bojnurd, Iran
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Choi JH, Choi DK, Sohn KC, Kwak SS, Suk J, Lim JS, Shin I, Kim SW, Lee JH, Joe CO. Absence of a human DnaJ protein hTid-1S correlates with aberrant actin cytoskeleton organization in lesional psoriatic skin. J Biol Chem 2012; 287:25954-63. [PMID: 22692211 DOI: 10.1074/jbc.m111.313809] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The biochemical mechanism by which the human tumorous imaginal disc1(S) (hTid-1(S)) interferes with actin cytoskeleton organization in keratinocytes of human skin epidermis was investigated. We found that hTid-1, specifically hTid-1(S), interacts with MK5, a p38-regulated/activated protein kinase, and inhibits the protein kinase activity of MK5 that phosphorylates heat shock protein HSP27 in cultured HeLa cells. Thus, hTid-1(S) expression inhibits the phosphorylation of HSP27 known to play important roles in F-actin polymerization and actin cytoskeleton organization. The interplay between MK5/HSP27 signaling and hTid-1(S) expression was supported by the inhibition of HSP27 phosphorylation and MK5 activity in HeLa cells in response to hypoxia during which hTid-1(S) expression was down-regulated. We also found that overexpression of hTid-1(S) results in the inhibition of HSP27 phosphorylation, F-actin polymerization, and actin cytoskeleton organization in transduced HaCaT keratinocytes. This study further proposes that the loss of hTid-1(S) expression in the basal layer of skin epidermis correlates with the enhanced HSP27 phosphorylation, keratinocyte hyperproliferation, and excess actin cytoskeleton organization in lesional psoriatic skin.
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Affiliation(s)
- Ji Hye Choi
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea
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Zhang JP, Li H, Li XM, Jiang XF, Li Y, Zhang QZ, Chen Y, Wang HJ, Pang ZL, Shen HM, Li HW. Expression of HspB1 in esophageal cancer in Xinjiang Kazakh patients. Shijie Huaren Xiaohua Zazhi 2012; 20:1296-1300. [DOI: 10.11569/wcjd.v20.i15.1296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To obtain differentially expressed proteins in esophageal cancer in Xinjiang Kazakh patients by using a comparative proteomic method to provide clues to early diagnosis and therapy of this malignancy.
METHODS: Two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) were utilized for the identification of proteins differentially expressed between cancer and adjacent non-cancerous tissue. The differential expression of HspB1 was further verified by RT-PCR.
RESULTS: Overexpression of HspB1 protein was noted in esophageal cancer; however, its mRNA expression showed no significant difference between cancer tissue and normal tissue (2.18 ± 3.98 vs 3.06 ± 4.69, P > 0.05). HspB1 mRNA expression had no correlation with depth of invasion, clinical stage, or degree of differentiation (all P > 0.05). The percentage of samples showing higher HspB1 expression in esophageal cancer than in normal tissue, in patients with T3 to T4 cancer than in those with T1 to T2 cancer, and in those with high-differentiation cancer than in those with low-differentiation cancer.
CONCLUSION: Our finding suggests that HspB1 expression may be regulated by several different mechanisms during the infiltration and differentiation of esophageal cancer.
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Cao Z, Han Z, Shao Y, Liu X, Sun J, Yu D, Kong X, Liu S. Proteomics analysis of differentially expressed proteins in chicken trachea and kidney after infection with the highly virulent and attenuated coronavirus infectious bronchitis virus in vivo. Proteome Sci 2012; 10:24. [PMID: 22463732 PMCID: PMC3342233 DOI: 10.1186/1477-5956-10-24] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 03/31/2012] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Infectious bronchitis virus (IBV) is first to be discovered coronavirus which is probably endemic in all regions with intensive impact on poultry production. In this study, we used two-dimensional gel electrophoresis (2-DE) and two-dimensional fluorescence difference gel electrophoresis (2-DIGE), coupled with matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry (MALDI-TOF/TOF-MS), to explore the global proteome profiles of trachea and kidney tissues from chicken at different stages infected in vivo with the highly virulent ck/CH/LDL/97I P5 strain of infectious bronchitis virus (IBV) and the embryo-passaged, attenuated ck/CH/LDL/97I P115 strain. RESULTS Fifty-eight differentially expressed proteins were identified. Results demonstrated that some proteins which had functions in cytoskeleton organization, anti-oxidative stress, and stress response, showed different change patterns in abundance from chicken infected with the highly virulent ck/CH/LDL/97I P5 strain and those given the embryo-passaged, attenuated P115 stain. In addition, the dynamic transcriptional alterations of 12 selected proteins were analyzed by the real-time RT-PCR, and western blot analysis confirmed the change in abundance of heat shock proteins (HSP) beta-1, annexin A2, and annexin A5. CONCLUSIONS The proteomic alterations described here may suggest that these changes to protein expression correlate with IBV virus' virulence in chicken, hence provides valuable insights into the interactions of IBV with its host and may also assist with investigations of the pathogenesis of IBV and other coronavirus infections.
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Affiliation(s)
- Zhongzan Cao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China.
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Proteomics analysis of human umbilical vein endothelial cells treated with resveratrol. Amino Acids 2012; 43:1671-8. [DOI: 10.1007/s00726-012-1248-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 02/07/2012] [Indexed: 01/15/2023]
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Kamada T, Kurokawa MS, Kato T, Takenouchi K, Takahashi K, Yoshioka T, Uchida T, Mitsui H, Suematsu N, Okamoto K, Yudo K, Katayama Y, Nakamura H. Proteomic analysis of bone marrow-adherent cells in rheumatoid arthritis and osteoarthritis. Int J Rheum Dis 2012; 15:169-78. [DOI: 10.1111/j.1756-185x.2012.01702.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Kazuo Yudo
- Department of Frontier Medicine; Institute of Medical Science; St. Marianna University Graduate School of Medicine; Kawasaki
| | - Yasuo Katayama
- Department of Frontier Medicine; Institute of Medical Science; St. Marianna University Graduate School of Medicine; Kawasaki
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HSP27/HSPB1 as an adaptive podocyte antiapoptotic protein activated by high glucose and angiotensin II. J Transl Med 2012; 92:32-45. [PMID: 21931298 DOI: 10.1038/labinvest.2011.138] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Apoptosis is a driving force of diabetic end-organ damage, including diabetic nephropathy (DN). However, the mechanisms that modulate diabetes-induced cell death are not fully understood. Heat shock protein 27 (HSP27/HSPB1) is a cell stress protein that regulates apoptosis in extrarenal cells and is expressed by podocytes exposed to toxins causing nephrotic syndrome. We investigated the regulation of HSPB1 expression and its function in podocytes exposed to factors contributing to DN, such as high glucose and angiotensin (Ang) II. HSPB1 expression was assessed in renal biopsies from patients with DN, minimal change disease or focal segmental glomerulosclerosis (FSGS), in a rat model of diabetes induced by streptozotocin (STZ) and in Ang II-infused rats. The regulation of HSPB1 was studied in cultured human podocytes and the function of HSPB1 expressed in response to pathophysiologically relevant stimuli was explored by short interfering RNA knockdown. Total kidney HSPB1 mRNA and protein expression was increased in rats with STZ-induced diabetes and in rats infused with Ang II. Upregulation of HSPB1 protein was confirmed in isolated diabetic glomeruli. Immunohistochemistry showed increased glomerular expression of HSPB1 in both models and localized glomerular HSPB1 to podocytes. HSPB1 protein was increased in glomerular podocytes from patients with DN or FSGS. In cultured human podocytes HSPB1 mRNA and protein expression was upregulated by high glucose concentrations and Ang II. High glucose, but not Ang II, promoted podocyte apoptosis. HSPB1 short interfering RNA (siRNA) targeting increased apoptosis in a high-glucose milieu and sensitized to Ang II or TGFβ1-induced apoptosis by promoting caspase activation. In conclusion, both high glucose and Ang II contribute to HSPB1 upregulation. HSPB1 upregulation allows podocytes to better withstand an adverse high-glucose or Ang II-rich environment, such as can be found in DN.
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Mymrikov EV, Seit-Nebi AS, Gusev NB. Large potentials of small heat shock proteins. Physiol Rev 2011; 91:1123-59. [PMID: 22013208 DOI: 10.1152/physrev.00023.2010] [Citation(s) in RCA: 309] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Modern classification of the family of human small heat shock proteins (the so-called HSPB) is presented, and the structure and properties of three members of this family are analyzed in detail. Ubiquitously expressed HSPB1 (HSP27) is involved in the control of protein folding and, when mutated, plays a significant role in the development of certain neurodegenerative disorders. HSPB1 directly or indirectly participates in the regulation of apoptosis, protects the cell against oxidative stress, and is involved in the regulation of the cytoskeleton. HSPB6 (HSP20) also possesses chaperone-like activity, is involved in regulation of smooth muscle contraction, has pronounced cardioprotective activity, and seems to participate in insulin-dependent regulation of muscle metabolism. HSPB8 (HSP22) prevents accumulation of aggregated proteins in the cell and participates in the regulation of proteolysis of unfolded proteins. HSPB8 also seems to be directly or indirectly involved in regulation of apoptosis and carcinogenesis, contributes to cardiac cell hypertrophy and survival and, when mutated, might be involved in development of neurodegenerative diseases. All small heat shock proteins play important "housekeeping" roles and regulate many vital processes; therefore, they are considered as attractive therapeutic targets.
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Affiliation(s)
- Evgeny V Mymrikov
- Department of Biochemistry, School of Biology, Moscow State University, Moscow, Russian Federation
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Drastichova Z, Skrabalova J, Neckar J, Kolar F, Novotny J. Prolonged morphine administration alters protein expression in the rat myocardium. J Biomed Sci 2011; 18:89. [PMID: 22129148 PMCID: PMC3261841 DOI: 10.1186/1423-0127-18-89] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Accepted: 11/30/2011] [Indexed: 12/14/2022] Open
Abstract
Background Morphine is used in clinical practice as a highly effective painkiller as well as the drug of choice for treatment of certain heart diseases. However, there is lack of information about its effect on protein expression in the heart. Therefore, here we aimed to identify the presumed alterations in rat myocardial protein levels after prolonged morphine treatment. Methods Morphine was administered to adult male Wistar rats in high doses (10 mg/kg per day) for 10 days. Proteins from the plasma membrane- and mitochondria-enriched fractions or cytosolic proteins isolated from left ventricles were run on 2D gel electrophoresis, scanned and quantified with specific software to reveal differentially expressed proteins. Results Nine proteins were found to show markedly altered expression levels in samples from morphine-treaded rats and these proteins were identified by mass spectrometric analysis. They belong to different cell pathways including signaling, cytoprotective, and structural elements. Conclusions The present identification of several important myocardial proteins altered by prolonged morphine treatment points to global effects of this drug on heart tissue. These findings represent an initial step toward a more complex view on the action of morphine on the heart.
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