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Park YJ, Kim HJ, Koh DJ, Kim E, Lim YW, An HJ. Effect and mechanisms of Gambi-jung against high-fat diet-induced cardiac apoptosis in mice. Heliyon 2024; 10:e29161. [PMID: 38644871 PMCID: PMC11031771 DOI: 10.1016/j.heliyon.2024.e29161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024] Open
Abstract
Obesity is associated with an increased risk of cardiovascular disease. Gambi-jung (GBJ), a modified herbal formula of Taeumjowi-tang, induces weight loss in high-fat diet (HFD)-fed obese mice. Meanwhile, concerns have been raised regarding Ephedra sinica Stapf (ES), the primary herb of GBJ, having potential adverse cardiovascular effects. However, there have been no reports on the effects of ES and ephedrine-containing products on obesity-induced cardiac apoptosis. Therefore, to investigated the effect of GBJ and ES on HFD-induced cardiac apoptosis, we utilized Western blot analysis, TUNEL-staining, and histological staining of heart tissues from HFD-fed obese mice. Western blot analysis showed that there were significant changes in the protein levels of anti-apoptotic markers (B-cell lymphoma (BCL) protein 2 (BCL-2), BCL-XL, and X-linked inhibitor of apoptosis protein) and pro-apoptotic markers (Fas, Fas-associated protein with death domain, BCL-2 agonist of cell death, BCL-2 associated X, cytochrome C, and cleaved caspase-9) in the heart of HFD-fed mice. In contrast administration of 250 mg/kg GBJ for 12 weeks significantly reversed the protein levels related to the apoptosis signaling pathway, which was greater than that of ES administration. Furthermore, GBJ-treated mice had markedly decreased number of TUNEL-stained apoptotic cells compared to the HFD group. Moreover, GBJ improved the mitochondrial function by regulating the genes expression of uncoupling protein 2, peroxisome proliferator-activated receptor-γ coactivator-1α, optic atrophy protein 1, and fission protein 1. Notably, hematoxylin and eosin histological staining showed no changes in the heart tissues of GBJ- and ES-treated mice, indicating that long-term administration of GBJ and ES did not exert any adverse effects on the cardiac tissue. The present study lays the foundation to support the efficacy of GBJ in protecting cardiac cell apoptosis induced by HFD feeding, as well as to verify the cardiac safety of GBJ administration.
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Affiliation(s)
- Yea-Jin Park
- Department of Rehabilitative Medicine of Korean Medicine and Neuropsychiatry, College of Korean Medicine, Sangji University, Wonju, Gangwon-do, 26339, Republic of Korea
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyo-Jung Kim
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Duck-Jae Koh
- Nubebe Korean Medical Clinic Jamsil Center, Seoul, 05510, Republic of Korea
| | - Eunjoo Kim
- Nubebe Obesity Research Institute, Seoul, 06634, Republic of Korea
- Nubebe Korean Medical Clinic Bundang Center, Seongnam-si, 13506, Republic of Korea
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Young-Woo Lim
- Nubebe Obesity Research Institute, Seoul, 06634, Republic of Korea
- Nubebe Korean Medical Clinic Bundang Center, Seongnam-si, 13506, Republic of Korea
| | - Hyo-Jin An
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
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Hajializadeh Z, Khaksari M. Cardioprotective effects of calorie restriction against inflammation and apoptosis in ovariectomized obese rats: Role of classical estrogen receptors and SIRT1. Obes Res Clin Pract 2023; 17:492-498. [PMID: 38071166 DOI: 10.1016/j.orcp.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/29/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023]
Abstract
AIM Obesity is a metabolic complication linked with bad eating habits and a sedentary lifestyle, and the heart is one of the target organs damaged by it. Estrogen deficiency during menopause worsens the situation. Calorie restriction (CR) can contribute to reducing cardiovascular disease (CVD) in postmenopausal conditions. Thus, the effects of CR on inflammation and apoptosis in ovariectomized rats' hearts with obesity were studied. METHOD Female Wistar rats were categorized into Sham and OVX (ovariectomized) groups and received a standard diet (SD) or high-fat diet (60%HFD) or calorie restriction (30% CR) for 16 weeks. The real-time PCR method was used to evaluate the inflammatory markers and estrogen receptors gene expression. Western-blot and ELISA methods were respectively used for the measurement of apoptosis and SIRT1 protein expression. RESULTS HFD led to the elevation of body weight, IL-6 (interleukin-6) and TNF-α (tumor necrosis factor-α) and reduction of IL-10 (interleukin-10) gene expressions, and also an increment in protein levels of cleaved caspase-3, Bax and Bax/Bcl2 ratio and decrement in Bcl-2 in OVX rats (P < 0.001). Additionally, HFD reduced SIRT1 (sirtuin1) protein levels, ERα (estrogen receptor α), and ERβ (estrogen receptor β) gene expressions (P < 0.001). In contrast, CR declined body weight, IL-6 and TNF-α (P < 0.001), increased IL-10 expressions (P < 0.05), decreased cleaved caspase-3 (P < 0.001), Bax (P < 0.01), and Bax/Bcl2 ratio (P < 0.05), enhanced Bcl-2 (P < 0.001), increased SIRT1 (P < 0.05) and ERα (P < 0.001) and ERβ (P < 0.01) expressions. CONCLUSION CR through the SIRT1 regulation and estrogen receptors attenuate obesity-induced-cardiac inflammation and apoptosis. CR can be a cardioprotective candidate in postmenopausal conditions.
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Affiliation(s)
- Zahra Hajializadeh
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
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Sarkar S, Das A, Mitra A, Ghosh S, Chattopadhyay S, Bandyopadhyay D. An integrated strategy to explore the potential role of melatonin against copper-induced adrenaline toxicity in rat cardiomyocytes: Insights into oxidative stress, inflammation, and apoptosis. Int Immunopharmacol 2023; 120:110301. [PMID: 37224648 DOI: 10.1016/j.intimp.2023.110301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/26/2023]
Abstract
AIMS Circumstantial anxiety as well as chronic stress may stimulate the release of stress hormones including catecholamines. Adrenaline toxicity has been implicated in many cardiovascular conditions. Considering previous literature that suggests the oxidative potential of the adrenaline-copper entity, we have investigated its potential nocuous role in isolated adult rat cardiomyocytes, the underlying molecular mechanism, and its possible protection by melatonin. MAIN METHODS Given the mechanistic congruity of adrenaline-copper (AC) with the well-established H2O2-copper-ascorbate (HCA) system of free radical generation, we have used the latter as a representative model to study the cytotoxic nature of AC. We further investigated the cardioprotective efficacy of melatonin in both the stress models through scanning electron microscopy, immunofluorescence, flow cytometry, and western blot analysis. KEY FINDINGS Results show that melatonin significantly protects AC-treated cardiomyocytes from ROS-mediated membrane damage, disruption of mitochondrial membrane potential, antioxidant imbalance, and distortion of cellular morphology. Melatonin protects cardiomyocytes from inflammation by downregulating pro-inflammatory mediators viz., COX-2, NF-κB, TNF-α, and upregulating anti-inflammatory IL-10. Melatonin significantly ameliorated cardiomyocyte apoptosis in AC and HCA-treated cells as evidenced by decreased BAX/BCL-2 ratio and subsequent suppression of caspase-9 and caspase-3 levels. The isothermal calorimetric study revealed that melatonin inhibits the binding of adrenaline bitartrate with copper in solution, which fairly explains the rescue potential of melatonin against AC-mediated toxicity in cardiomyocytes. SIGNIFICANCE Findings suggest that the multipronged strategy of melatonin that includes its antioxidant, anti-inflammatory, anti-apoptotic, and overall cardioprotective ability may substantiate its potential therapeutic efficacy against adrenaline-copper-induced damage and death of adult rat cardiomyocytes.
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Affiliation(s)
- Swaimanti Sarkar
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Ankur Das
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Ankan Mitra
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Songita Ghosh
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Sreya Chattopadhyay
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Debasish Bandyopadhyay
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India.
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Mohan Manu T, Anand T, Sharath Babu GR, Patil MM, Khanum F. Bacopa monniera extract mitigates isoproterenol-induced cardiac stress via Nrf2/Keap1/NQO1 mediated pathway. Arch Physiol Biochem 2022; 128:341-351. [PMID: 31755309 DOI: 10.1080/13813455.2019.1683583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The present study was aimed to investigate the effect of standardised hydroalcoholic extract of Bacopa monniera (BME) against isoproterenol (ISO) induced cardiac stress. Isoproterenol (85 mg/kg body weight) was administered intraperitoneally to induce cardiac stress in rats. Bacopa monniera extract (BME75 and 150 mg/kg) was orally administered for 21 days followed by ISO on 22nd and 23rd experimental days. ISO caused significant cardiac damage, which was concomitant with increased apoptosis and attenuated expressions of Nrf2, HO-1, and regulating apoptotic protein expressions of Bax, Bcl2 and NOS2. Treatment with BME in rats significantly improved cardiac dysfunction by maintaining cardiac rhythm, myocardial integrity. Decreased oxidative stress by restored expressions of Nrf2, NQO1 and HO-1 followed by elevating antioxidant enzymes and total glutathione levels. Our present results suggest that the BME treatment strengthening the endogenous defence system through Nrf2 modulation and played a key role against cardiac oxidative stress induced by ISO in rats.
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Affiliation(s)
- T Mohan Manu
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, India
| | - T Anand
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, India
| | - G R Sharath Babu
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, India
| | - Mahantesh M Patil
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, India
| | - Farhath Khanum
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, India
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Selective Activation of ZAK β Expression by 3-Hydroxy-2-Phenylchromone Inhibits Human Osteosarcoma Cells and Triggers Apoptosis via JNK Activation. Int J Mol Sci 2020; 21:ijms21093366. [PMID: 32397561 PMCID: PMC7247666 DOI: 10.3390/ijms21093366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 11/17/2022] Open
Abstract
Although various advancements in radical surgery and neoadjuvant chemotherapy have been developed in treating osteosarcoma (OS), their clinical prognosis remains poor. A synthetic chemical compound, 3-hydroxylflavone, that is reported to regulate ROS production is known to inhibit human bone osteosarcoma cells. However, its role and mechanism in human OS cells remains unclear. In this study, we have determined the potential of 3-Hydroxy-2-phenylchromone (3-HF) against OS using human osteosarcoma (HOS) cells. Our previous studies showed that Zipper sterile-alpha-motif kinase (ZAK), a kinase member of the MAP3K family, was involved in various cellular events such as cell proliferation and cell apoptosis, and encoded two transcriptional variants, ZAKα and β. In this study, we show that 3-HF induces the expression of ZAK and thereby enhances cellular apoptosis. Using gain of function and loss of function studies, we have demonstrated that ZAK activation by 3-HF in OS cells is confined to a ZAKβ form that presumably plays a leading role in triggering ZAKα expression, resulting in an aggravated cancer apoptosis. Our results also validate ZAKβ as the predominant form of ZAK to drive the anticancer mechanism in HOS cells.
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Asokan SM, Hung TH, Li ZY, Chiang WD, Lin WT. Protein hydrolysate from potato confers hepatic-protection in hamsters against high fat diet induced apoptosis and fibrosis by suppressing Caspase-3 and MMP2/9 and by enhancing Akt-survival pathway. Altern Ther Health Med 2019; 19:283. [PMID: 31653214 PMCID: PMC6814989 DOI: 10.1186/s12906-019-2700-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 09/30/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND A potato protein hydrolysate, APPH is a potential anti-obesity diet ingredient. Since, obesity leads to deterioration of liver function and associated liver diseases, in this study the effect of APPH on high fat diet (HFD) associated liver damages was investigated. METHODS Six week old male hamsters were randomly separated to six groups (n = 8) as control, HFD (HFD fed obese), L-APPH (HFD + 15 mg/kg/day of APPH), M-APPH (HFD + 30 mg/kg/day), H-APPH (HFD + 75 mg/kg/day of APPH) and PB (HFD + 500 mg/kg/day of probucol). HFD fed hamsters were administered with APPH 50 days through oral gavage. The animals were euthanized and the number of apoptotic nuclei in liver tissue was determined by TUNEL staining and the extent of interstitial fibrosis was determined by Masson's trichrome staining. Modulation in the molecular events associated with apoptosis and fibrosis were elucidated from the western blotting analysis of the total protein extracts. RESULTS Hamsters fed with high fat diet showed symptoms of liver damage as measured from serum markers like alanine aminotransferase and aspartate aminotransferase levels. However a 50 day long supplementation of APPH effectively ameliorated the effects of HFD. HFD also modulated the expression of survival and apoptosis proteins in the hamster liver. Further the HFD groups showed elevated levels of fibrosis markers in liver. The increase in fibrosis and apoptosis was correlated with the increase in the levels of phosphorylated extracellular signal-regulated kinases (pERK1/2) revealing a potential role of ERK in the HFD mediated liver damage. However APPH treatment reduced the effect of HFD on the apoptosis and fibrosis markers considerably and provided hepato-protection. CONCLUSION APPH can therefore be considered as an efficient therapeutic agent to ameliorate high fat diet related liver damages.
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7
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Fu CY, Chen MC, Tseng YS, Chen MC, Zhou Z, Yang JJ, Lin YM, Viswanadha VP, Wang G, Huang CY. Fisetin activates Hippo pathway and JNK/ERK/AP-1 signaling to inhibit proliferation and induce apoptosis of human osteosarcoma cells via ZAK overexpression. ENVIRONMENTAL TOXICOLOGY 2019; 34:902-911. [PMID: 31044527 DOI: 10.1002/tox.22761] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 03/28/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
Osteosarcoma (OS) is a tumor entity that can cause a large number of cancer-related deaths. Although chemotherapy can decrease proliferation and increase apoptosis of human OS cells, the clinical prognosis remains poor. Fisetin is a flavonol found in fruits and vegetables and is reported to inhibit cell growth in numerous cancers. But the molecular mechanism underlying fisetin in human OS cells is not clear. It is known that sterile-alpha motif and leucine zipper containing kinase (ZAK), a kinase in the MAP3K family, is involved in various cell processes, including proliferation and apoptosis. In our lab, we have demonstrated that overexpression of ZAK can induce apoptosis in human OS cells. In the previous studies, MAP4K, the upstream of MAP3K, can act in parallel to MST1/2 to activate LATS1/2 in the Hippo pathway. Turning on the Hippo pathway can decrease proliferation and otherwise cause cell apoptosis in cancer cells. In this study, we found that fisetin can upregulate ZAK expression to induce the Hippo pathway and mediate the activation of JNK/ERK, the downstream of ZAK, to trigger cell apoptosis via AP-1 dependent manner in human OS cells. These findings reveal a novel molecular mechanism underlying fisetin effect on human OS cells.
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Affiliation(s)
- Chien-Yao Fu
- Department of Orthopaedics, National Defense Cental Medical Center, Taipei, Taiwan
- Department of Orthopaedics, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Mei-Chih Chen
- Medical Center for Exosomes and Mitochondria Related Diseases, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Yan-Shen Tseng
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Ming-Cheng Chen
- Division of Colorectal Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Zhengtao Zhou
- Department of Oncological Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong, China
| | - Jaw-Ji Yang
- School of Dentistry, Chung-Shan Medical University, Taichung, Taiwan
| | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | | | - Guiqing Wang
- Department of Orthopedics, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong, China
| | - Chih-Yang Huang
- College of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, Hualien, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
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8
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Chang RL, Nithiyanantham S, Huang CY, Pai PY, Chang TT, Hu LC, Chen RJ, VijayaPadma V, Kuo WW, Huang CY. Synergistic cardiac pathological hypertrophy induced by high-salt diet in IGF-IIRα cardiac-specific transgenic rats. PLoS One 2019; 14:e0216285. [PMID: 31211784 PMCID: PMC6581245 DOI: 10.1371/journal.pone.0216285] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 04/17/2019] [Indexed: 11/18/2022] Open
Abstract
Stress-induced cardiac hypertrophy leads to heart failure. Our previous studies demonstrate that insulin-like growth factor-II receptor (IGF-IIR) signaling is pivotal to hypertrophy regulation. In this study, we show a novel IGF-IIR alternative spliced transcript, IGF-IIRα (150 kDa) play a key role in high-salt induced hypertrophy mechanisms. Cardiac overexpression of IGF-IIRα and high-salt diet influenced cardiac dysfunction by increasing pathophysiological changes with up-regulation of hypertrophy markers, atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP). We found that, cardiac hypertrophy under high-salt conditions were amplified in the presence of IGF-IIRα overexpression. Importantly, high-salt induced angiotensin II type I receptor (AT1R) up regulation mediated IGF-IIR expressions via upstream mitogen activated protein kinase (MAPK)/silent mating type information regulation 2 homolog 1 (SIRT1)/heat shock factor 1 (HSF1) pathway. Further, G-coupled receptors (Gαq) activated calcineurin/nuclear factor of activated T-cells, cytoplasmic 3 (NFATc3)/protein kinase C (PKC) signaling was significantly up regulated under high-salt conditions. All these effects were observed to be dramatically over-regulated in IGF-IIRα transgenic rats fed with a high-salt diet. Altogether, from the findings, we demonstrate that IGF-IIRα plays a crucial role during high-salt conditions leading to synergistic cardiac hypertrophy.
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Affiliation(s)
- Ruey-Lin Chang
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | | | - Chih-Yang Huang
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | - Tung-Ti Chang
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Lai-Chin Hu
- Department of Internal Medicine, Division of Cardiology, Armed Forces Taichung General Hospital, Taichung, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - V. VijayaPadma
- Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- College of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, Hualien, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
- * E-mail:
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9
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Lin YY, Hong Y, Yu SH, Wu XB, Shyu WC, Chen JS, Ting H, Yang AL, Lee SD. Antiapoptotic and mitochondrial biogenetic effects of exercise training on ovariectomized hypertensive rat hearts. J Appl Physiol (1985) 2019; 126:1661-1672. [PMID: 30998123 DOI: 10.1152/japplphysiol.00038.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
This study was to investigate the effects of exercise training on antiapoptotic pathways and mitochondrial biogenesis in ovariectomized hypertensive rats. Histopathological analysis, TUNEL assay, and Western blotting were performed on the excised hearts from female spontaneously hypertensive rats (SHR), which were divided into a sham-operated sedentary hypertensive (SHR-S), a sedentary hypertensive ovariectomized (SHR-O), and hypertensive ovariectomized rats that underwent treadmill exercise training (SHR-OT; 60 min/day, 5 days/wk) for 8 wk, along with normotensive Wistar Kyoto rats (WKY). When compared with the WKY group, the SHR-S group exhibited decreased protein levels of peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) and mitochondrial OPA-1 (mitochondrial biogenesis) and decreased further in the SHR-O group. The protein levels of p-PI3K, p-Akt, Bcl-2, Bcl-xL (prosurvival pathways), and the protein levels of PGC-1α and mitochondrial OPA1 (mitochondrial biogenesis) were increased in the SHR-OT group, but estrogen receptor (ER)α and ERβ were not changed when compared with the SHR-O group. The protein levels of t-Bid, Bad, Bax, cytosolic cytochrome c, activated caspase 9, and activated caspase 3 (mitochondria-dependent apoptotic pathways), as well as Fas ligand, TNF-α, Fas receptors, Fas-associated death domain, activated caspase 8 (Fas receptor-dependent apoptotic pathways) were decreased in the SHR-OT group, when compared with the SHR-O group. Exercise training protection on the coexistence of hypertension and ovariectomy-induced cardiac mitochondria-dependent and Fas receptor-dependent apoptotic pathways by enhancing the Bcl2-related and mitochondrial biogenetic prosurvival pathways might provide a new therapeutic effect on cardiac protection in oophorectomized early postmenopausal hypertensive women. NEW & NOTEWORTHY Widely dispersed cardiac apoptosis was found in the coexistence of hypertension and ovariectomy. Exercise training on a treadmill could prevent ovariectomized hypertension-induced widely dispersed cardiac apoptosis via mitochondria-dependent apoptotic pathway (t-Bid, Bad, Bax, cytosolic cytochrome c, activated caspase 9, and activated caspase 3) and Fas receptor-dependent apoptotic pathway (Fas ligand, tumor necrosis factor-α, Fas receptors, Fas-associated death domain, activated caspase 8, and activated caspase 3) through enhancing the Bcl2-related (p-PI3K, p-Akt, Bcl-2, Bcl-xL) and mitochondrial biogenetic (PGC-1α and mitochondrial optic atrophy 1) prosurvival pathways.
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Affiliation(s)
- Yi-Yuan Lin
- School of Rehabilitation Medicine, Weifang Medical University , Shandong , China.,Department of Physical Therapy, Asia University , Taichung , Taiwan.,Graduate Institute of Clinical Medical Science, China Medical University, Taichun, Taiwan
| | - Yi Hong
- The First Rehabilitation Hospital of Shanghai , Shanghai , China
| | - Shao-Hong Yu
- College of Rehabilitation, Shandong University of Traditional Chinese Medicine , Shandong , China
| | - Xu-Bo Wu
- Departmental of Rehabilitation, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China.,School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Woei-Cherng Shyu
- Graduate Institute of Biomedical Sciences, China Medical University , Taichung , Taiwan.,Translational Medicine Research Center, China Medical University Hospital , Taichung , Taiwan
| | - Jwo-Sheng Chen
- Department of Sports Medicine, China Medical University , Taichung , Taiwan
| | - Hua Ting
- Center of Sleep Medicine, Department of Physical Medicine and Rehabilitation, Chung-Shan Medical University Hospital, Chung-Shan Medical University , Taichung , Taiwan
| | - Ai-Lun Yang
- Department of Sports Sciences, University of Taipei , Taipei , Taiwan
| | - Shin-Da Lee
- School of Rehabilitation Medicine, Weifang Medical University , Shandong , China.,Department of Physical Therapy, Asia University , Taichung , Taiwan.,College of Rehabilitation, Shandong University of Traditional Chinese Medicine , Shandong , China.,Departmental of Rehabilitation, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai , China.,Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University , Taichung , Taiwan
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10
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Chang RL, Nithiyanantham S, Kuo WW, Pai PY, Chang TT, Lai CH, Chen RJ, Vijaya Padma V, Huang CY, Huang CY. Overexpression of IGF-IIRα regulates cardiac remodeling and aggravates high salt induced apoptosis and fibrosis in transgenic rats. ENVIRONMENTAL TOXICOLOGY 2019; 34:210-218. [PMID: 30450786 DOI: 10.1002/tox.22676] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 06/09/2023]
Abstract
IGF-IIR activation regulates cardiac remodeling leading to apoptosis. Here, we identified the novel IGF-IIRα (150 KDa), a truncated IGF-IIR transcript enhances cardiac apoptosis under high-salt uptake in transgenic rat model. Echocardiographic analysis revealed decline in ejection fraction and fractional shortening percentage in IGF-IIRα (TG) rats. We found that IGF-IIRα TG rats developed severe apoptosis and fibrosis as identified through TUNEL assay and Masson's trichrome staining. Importantly, the heart functioning, apoptosis, and fibrosis were significantly affected under high-salt conditions in IGF-IIRα (TG) rats. Significant upregulation of apoptosis was evident from decreased Bcl-2, p-AKT, and p-PI3K expressions with concomitant increase in Bad, cytochrome C, cleaved caspase 3 levels. We found that, IGF-IIRα highly induced tissue fibrosis through collagen accumulation (col I, col III) and up regulated various fibrotic markers such as tPA, uPA, TGF-β, and vimentin expressions. The observed upregulation of fibrosis were significantly regulated under high-salt conditions and their over regulation under IGF-IIRα over expressions shows the key role of IGF-IIRα in promoting high-salt induced fibrosis. During IGF-IIRα over expression induced cardiotoxicity, under high salt condition, and it destroys the interaction between CHIP and HSF1, which promotes the degradation of HSF1 and results in upregulation of IGF-IIR/IGF-IIRα expressions. Altogether, the study unveils novel IGF-IIRα in the regulation of cardiac apoptosis and fibrosis under high-salt diet.
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Affiliation(s)
- Ruey-Lin Chang
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | | | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | - Tung-Ti Chang
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chao-Hung Lai
- Department of Internal Medicine, Division of Cardiology, Armed Forces Taichung General Hospital, Taichung, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | | | - Chih-Yang Huang
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Biological Science and Technology, Asia University, Taichung, Taiwan
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11
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Hu WS, Ting WJ, Tamilselvi S, Day CH, Wang T, Chiang WD, Viswanadha VP, Yeh YL, Lin WT, Huang CY. Oral administration of alcalase potato protein hydrolysate-APPH attenuates high fat diet-induced cardiac complications via TGF-β/GSN axis in aging rats. ENVIRONMENTAL TOXICOLOGY 2019; 34:5-12. [PMID: 30240538 DOI: 10.1002/tox.22651] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 08/23/2018] [Accepted: 08/25/2018] [Indexed: 06/08/2023]
Abstract
Consumption of high fat diet (HFD) is associated with increased cardiovascular risk factors among elderly people. Aging and obesity induced-cardiac remodeling includes hypertrophy and fibrosis. Gelsolin (GSN) induces cardiac hypertrophy and TGF-β, a key cytokine, which induces fibrosis. The relationship between TGF-β and GSN in aging induced cardiac remodeling is still unknown. We evaluated the expressions of TGF-β and GSN in HFD fed 22 months old aging SD rats, followed by the administration of either probucol or alcalase potato protein hydrolysate (APPH). Western blotting and Masson trichrome staining showed that APPH (45 and 75 mg/kg/day) and probucol (500 mg/kg/day) treatments significantly reduced the aging and HFD-induced hypertrophy and fibrosis. Echocardiograph showed that the performance of the hearts was improved in APPH, and probucol treated HFD aging rats. Serum from all rats was collected and H9c2 cells were cultured with collected serums separately. The GSN dependent hypertrophy was inhibited with an exogenous TGF-β in H9c2 cells cultured in HFD+ APPH treated serum. Thus, we propose that along with its role in cardiac fibrosis, TGF-β also acts as an upstream activator of GSN dependent hypertrophy. Hence, TGF-β in serum could be a promising therapeutic target for cardiac remodeling in aging and/or obese subjects.
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Affiliation(s)
- Wei Syun Hu
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Division of Cardiovascular Medicine, Department of Medicine, China Medical University, Hospital, Taichung, Taiwan
| | - Wei Jen Ting
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Shanmugam Tamilselvi
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | | | - Ting Wang
- Department of hospitality management, College of Agriculture, Tunghai University, Taichung, Taiwan
| | - Wen-Dee Chiang
- Department of Food science, College of Agriculture, Tunghai University, Taichung, Taiwan
| | | | - Yu Lan Yeh
- Department of pathology, Changhua Christian Hospital, Changhua, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Wan Teng Lin
- Department of hospitality management, College of Agriculture, Tunghai University, Taichung, Taiwan
| | - Chih Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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12
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Lin YY, Chen JS, Wu XB, Shyu WC, Chaunchaiyakul R, Zhao XL, Kuo CH, Cheng YJ, Yang AL, Lee SD. Combined effects of 17β-estradiol and exercise training on cardiac apoptosis in ovariectomized rats. PLoS One 2018; 13:e0208633. [PMID: 30571718 PMCID: PMC6301615 DOI: 10.1371/journal.pone.0208633] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/20/2018] [Indexed: 11/19/2022] Open
Abstract
Background The purpose of this study was to investigate the combined 17β-estradiol (E2) and exercise training on cardiac pro-survival and anti-apoptotic pathways in ovariectomized rats. Methods Fifty-six female Sprague–Dawley rats were divided into a sham-operated (Sham), a bilaterally ovariectomized (OVX), an OVX treated with E2 (OVX-E2; 10μg/kg/day), and an OVX with E2 and treadmill exercise training (OVX-E2-EX; 60 min/day, 5 days/week) for 10 weeks. Following 10 weeks of exercise training, rat hearts were isolated for the evaluation of Histopathological analysis, TUNEL assay, and Western blotting. Results The protein levels of estrogen receptor α (ERα), estrogen receptor β (ERβ), insulin-like growth factor 1 (IGF-1), IGF-1 receptor (IGF-1R), phospho-phosphatidylinositol 3-kinase (p-PI3K) (estrogen receptors/IGF-1-related survival pathway) were significantly increased in either the OVX-E2 or OVX-E2-EX group when compared with the OVX group. The protein levels of B-cell lymphoma 2 (Bcl-2), B-cell lymphoma-extra-large (Bcl-xL) and phosphorylated-Bad (p-Bad) (Bcl-2 family survival pathway) were significantly increased in the OVX-E2-EX group when compared with the OVX group. Only the p-Bad was significantly increased in the OVX-E2 group when compared with the OVX group. The protein levels of truncation of Bid (t-Bid), Bcl-2-associated death promotor (Bad), Bcl-2-associated X protein (Bax), Cytochrome c, caspases-9, and caspases-3 (mitochondria-dependent apoptotic pathway), as well as the protein levels of tumor necrosis factor-α (TNF-α), Fas ligand, Fas receptors, Fas-associated death domain (FADD), activated caspase-8 and activated caspase-3 (Fas receptor–dependent apoptotic pathway) were significantly decreased in either the OVX-E2 or OVX-E2-EX group when compared with the OVX group. Furthermore, when compared with the OVX-E2 group, the protein levels of ERβ, IGF-1, IGF-1R, Bcl-2 and Bcl-xL were further enhanced in the OVX-E2-EX group as well as the protein levels of Cytochrome c, Fas receptors, FADD, activated caspase-8, activated caspase-9 and activated caspase-3 were further decreased in the OVX-EX-E2 group. Conclusions Combined E2 and exercise training exhibited a positive effect of protection on ovariectomy-induced cardiac apoptosis by enhancing ERβ-related survival pathways, which might provide a more effective therapeutic effect on cardiac protection in bilaterally oophorectomized or menopausal women than E2 treatment only.
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Affiliation(s)
- Yi-Yuan Lin
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Jwo-Sheng Chen
- Department of Sports Medicine, China Medical University, Taichung, Taiwan
| | - Xu-Bo Wu
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Woei-Cherng Shyu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | | | - Xian-Li Zhao
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Yu-Jung Cheng
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taichung, Taiwan
| | - Ai-Lun Yang
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Shin-Da Lee
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taichung, Taiwan
- Department of Occupational Therapy, Asia University, Taichung, Taiwan
- * E-mail:
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13
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Yang YC, Tsai CY, Chen CL, Kuo CH, Hou CW, Cheng SY, Aneja R, Huang CY, Kuo WW. Pkcδ Activation is Involved in ROS-Mediated Mitochondrial Dysfunction and Apoptosis in Cardiomyocytes Exposed to Advanced Glycation End Products (Ages). Aging Dis 2018; 9:647-663. [PMID: 30090653 PMCID: PMC6065295 DOI: 10.14336/ad.2017.0924] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/24/2017] [Indexed: 01/21/2023] Open
Abstract
Diabetic patients exhibit serum AGE accumulation, which is associated with reactive oxygen species (ROS) production and diabetic cardiomyopathy. ROS-induced PKCδ activation is linked to mitochondrial dysfunction in human cells. However, the role of PKCδ in cardiac and mitochondrial dysfunction caused by AGE in diabetes is still unclear. AGE-BSA-treated cardiac cells showed dose- and time-dependent cell apoptosis, ROS generation, and selective PKCδ activation, which were reversed by NAC and rotenone. Similar tendency was also observed in diabetic and obese animal hearts. Furthermore, enhanced apoptosis and reduced survival signaling by AGE-BSA or PKCδ-WT transfection were reversed by kinase-deficient (KD) of PKCδ transfection or PKCδ inhibitor, respectively, indicating that AGE-BSA-induced cardiomyocyte death is PKCδ-dependent. Increased levels of mitochondrial mass as well as mitochondrial fission by AGE-BSA or PKCδ activator were reduced by rottlerin, siPKCδ or KD transfection, indicating that the AGE-BSA-induced mitochondrial damage is PKCδ-dependent. Using super-resolution microscopy, we confirmed that PKCδ colocalized with mitochondria. Interestingly, the mitochondrial functional analysis by Seahorse XF-24 flux analyzer showed similar results. Our findings indicated that cardiac PKCδ activation mediates AGE-BSA-induced cardiomyocyte apoptosis via ROS production and may play a key role in the development of cardiac mitochondrial dysfunction in rats with diabetes and obesity.
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Affiliation(s)
- Yao-Chih Yang
- 1Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taiwan
| | - Cheng-Yen Tsai
- 2Department of Pediatrics, China Medical University Beigang Hospital, Taiwan.,3School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taiwan
| | - Chien-Lin Chen
- 4Department of Life Sciences, National Chung Hsing University, Taiwan
| | - Chia-Hua Kuo
- 5Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan.,6Graduate Institute of Physical Therapy and Rehabilitation Science, China Medical University, Taiwan
| | - Chien-Wen Hou
- 5Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Shi-Yann Cheng
- 7Department of Medical Education and Research and Department of Obstetrics and Gynecology, China Medical University Beigang Hospital, Taiwan.,8Department of Obstetrics and Gynecology, China Medical University An Nan Hospital, Taiwan.,9Obstetrics and Gynecology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Ritu Aneja
- 10Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Chih-Yang Huang
- 11Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, School of Chinese Medicine, China Medical University, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Wei-Wen Kuo
- 1Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taiwan
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14
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Fu CY, Tseng YS, Chen MC, Hsu HH, Yang JJ, Tu CC, Lin YM, Viswanadha VP, Ding K, Kuo WW, Huang CY. Overexpression of ZAKβ in human osteosarcoma cells enhances ZAKα expression, resulting in a synergistic apoptotic effect. Cell Biochem Funct 2018; 36:176-182. [PMID: 29654619 DOI: 10.1002/cbf.3329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/21/2018] [Accepted: 02/13/2018] [Indexed: 11/07/2022]
Abstract
ZAK is a novel mixed lineage kinase-like protein that contains a leucine-zipper and a sterile-alpha motif as a protein-protein interaction domain, and it is located in the cytoplasm. There are 2 alternatively spliced forms of ZAK: ZAKα and ZAKβ. Previous studies showed that ZAKα is involved in various cell processes, including cell proliferation, cell differentiation, and cardiac hypertrophy, but the molecular mechanism of ZAKβ is not yet known. In a recent study in our laboratory, we found that ZAKβ can ameliorate the apoptotic effect induced by ZAKα in H9c2 cells. We further hypothesized that ZAKβ could also improve the apoptotic effect induced by ZAKα in human osteosarcoma cells. The results of this study show that ZAKβ can induce apoptosis and decrease cell viability similar to the effects of ZAKα. Interestingly, our ZAKα-specific inhibitor assay shows that the expression of ZAKβ is highly dependent on ZAKα expression. However, ZAKβ expression effectively induces ZAKα expression and results in synergistic enhancement of apoptosis in human osteosarcoma cells. Furthermore, co-immunoprecipitation results revealed that ZAKα can directly interact with ZAKβ, and this interaction may contribute to the enhanced apoptotic effects. SIGNIFICANCE OF THE STUDY ZAK is a mixed lineage kinase involved in cell differentiation, proliferation, and hypertrophic growth. ZAKα isoform of ZAK is associated with tumorigenesis, but the function of ZAKβ is not yet known. In H9c2 cells, ZAKβ was found to ameliorate the apoptotic effect induced by ZAKα. However, in osteosarcoma cells, ZAKβ elevates the apoptotic effect induced by ZAKα. In this study, we show that similar to ZAKα, the ZAKβ induces apoptosis and decreases cell viability. Interestingly, the expression of ZAKβ is dependent on ZAKα expression, and ZAKβ further enhances ZAKα expression and results in synergistic enhancement of apoptosis in osteosarcoma cells.
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Affiliation(s)
- Chien-Yao Fu
- Graduate Institute of Aging Medicine, China Medical University, Taichung, Taiwan.,Orthopaedic Department, Armed Forces General Hospital, Taichung, Taiwan.,Department of Orthopaedic, National Defense Medical Center, Taipei, Taiwan
| | - Yan-Shen Tseng
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Ming-Cheng Chen
- Division of Colorectal Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hsi-Hsien Hsu
- Division of Colorectal Surgery, Mackay Memorial Hospital, Taipei, Taiwan.,Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Jaw-Ji Yang
- School of Dentistry, Chung-Shan Medical University, Taichung, Taiwan
| | - Chuan-Chou Tu
- Division of Chest Medicine, Department of Internal Medicine, Armed Force Taichung General Hospital, Taichung, Taiwan
| | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | | | - Ke Ding
- School of Pharmacy, Jinan University, Guangzhou, China
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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15
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Chen T, Battsengel S, Kuo C, Pan L, Lin Y, Yao C, Chen Y, Lin F, Kuo W, Huang C. Stem cells rescue cardiomyopathy induced by
P. gingivalis
‐LPS via miR‐181b. J Cell Physiol 2018; 233:5869-5876. [DOI: 10.1002/jcp.26386] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/04/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Tung‐Sheng Chen
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
| | - Sarnai Battsengel
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
- Intermed Hospital, Chinggis Avenue 41, Khan‐Uul district15th KhorooUildverUlaanbaatarMongolia
| | - Chia‐Hua Kuo
- Department of Sports SciencesUniversity of TaipeiTaipeiTaiwan
| | - Lung‐Fa Pan
- Division of CardiologyArmed Force Taichung General HospitalTaichungTaiwan
- Department of Medical Imaging and Radiological SciencesCentral Taiwan University of Science and TechnologyTaichungTaiwan
| | - Yueh‐Min Lin
- Department of PathologyChanghua Christian HospitalChanghuaTaiwan
- Jen‐Teh Junior College of MedicineNursing and ManagementMiaoliTaiwan
| | - Chun‐Hsu Yao
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Biomedical InformaticsAsia UniversityTaichungTaiwan
| | - Yueh‐Sheng Chen
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Cosmeceutics and Graduate Institute of CosmeceuticsChina Medical UniversityTaichungTaiwan
| | - Feng‐Huei Lin
- Institute of Biomedical Engineering and NanomedicineNational Health Research InstitutesMiaoli CountyTaiwan
- Institute of Biomedical EngineeringNational Taiwan UniversityTaipeiTaiwan
| | - Wei‐Wen Kuo
- Department of Biological Science and TechnologyChina Medical UniversityTaichungTaiwan
| | - Chih‐Yang Huang
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Health and Nutrition BiotechnologyAsia UniversityTaichungTaiwan
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16
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Fu CY, Tseng YS, Chen MC, Hsu HH, Yang JJ, Tu CC, Lin YM, Viswanadha VP, Kuo WW, Huang CY. Doxorubicin induces ZAKα overexpression with a subsequent enhancement of apoptosis and attenuation of survivability in human osteosarcoma cells. ENVIRONMENTAL TOXICOLOGY 2018; 33:191-197. [PMID: 29105997 DOI: 10.1002/tox.22507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 10/10/2017] [Accepted: 10/22/2017] [Indexed: 06/07/2023]
Abstract
Human osteosarcoma (OS) is a malignant cancer of the bone. It exhibits a characteristic malignant osteoblastic transformation and produces a diseased osteoid. A previous study demonstrated that doxorubicin (DOX) chemotherapy decreases human OS cell proliferation and might enhance the relative RNA expression of ZAK. However, the impact of ZAKα overexpression on the OS cell proliferation that is inhibited by DOX and the molecular mechanism underlying this effect are not yet known. ZAK is a protein kinase of the MAPKKK family and functions to promote apoptosis. In our study, we found that ZAKα overexpression induced an apoptotic effect in human OS cells. Treatment of human OS cells with DOX enhanced ZAKα expression and decreased cancer cell viability while increasing apoptosis of human OS cells. In the meantime, suppression of ZAKα expression using shRNA and inhibitor D1771 both suppressed the DOX therapeutic effect. These findings reveal a novel molecular mechanism underlying the DOX effect on human OS cells. Taken together, our findings demonstrate that ZAKα enhances the apoptotic effect and decreases cell viability in DOX-treated human OS cells.
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Affiliation(s)
- Chien-Yao Fu
- Graduate Institute of Aging Medicine, China Medical University, Taichung, Taiwan
- Orthopaedic Department, Armed Forces General Hospital, Taichung, Taiwan
- Department of Orthopaedic, National Defense Medical Center, Taipei, Taiwan
| | - Yan-Shen Tseng
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Ming-Cheng Chen
- Division of Colorectal Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, 40705, Taiwan
| | - Hsi-Hsien Hsu
- Division of Colorectal Surgery, Mackay Memorial Hospital, Taipei, 10449, Taiwan
- Nursing and Management College, Mackay Medicine, Taipei, 11260, Taiwan
| | - Jaw-Ji Yang
- School of Dentistry, Chung-Shan Medical University, Taichung, 402, Taiwan
| | - Chuan-Chou Tu
- Division of Chest Medicine, Department of Internal Medicine, Armed Force Taichung General Hospital, Taichung, 41152, Taiwan
| | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, 500, Taiwan
| | | | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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17
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Wen SY, Tsai CY, Pai PY, Chen YW, Yang YC, Aneja R, Huang CY, Kuo WW. Diallyl trisulfide suppresses doxorubicin-induced cardiomyocyte apoptosis by inhibiting MAPK/NF-κB signaling through attenuation of ROS generation. ENVIRONMENTAL TOXICOLOGY 2018; 33:93-103. [PMID: 29087013 DOI: 10.1002/tox.22500] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 09/29/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Doxorubicin (Dox) is an effective anticancer agent. However, its effectiveness is limited by its cardiotoxic effects. It has also been reported that the mitogen-activated protein kinase family and NF-κB can be activated by Dox treatment. DATS has been shown to be a potent antioxidant with cardioprotective effects. We investigate whether Dox induces cardiac apoptosis through JNK- and ERK-dependent NF-κB upregulation that can be reduced by DATS treatment. METHODS AND MATERIAL H9c2 cells were treated with 0.5-1.5 μM Dox for 24 hours. Dox promoted apoptosis and ROS generation and inhibited viability in a dose-dependent manner. Then, the phosphorylation levels of JNK, ERK, and NF-κB evaluated by western blot were elevated. We used inhibitors of JNK, ERK, and NF-κB to determine which of these proteins were involved in Dox-induced apoptosis. Furthermore, Dox-exposed cells were treated with DATS at doses of 1, 5, and 10 μM, and the data demonstrated that ROS generation and apoptotic proteins were decreased and that ERK and NF-κB were downregulated in a dose-dependent manner. Additionally, six-week-old rats were divided into three groups (n = 6 per group) designed as an eight-week study. Normal, Dox (at dose 3.75 mg/kg by ip) administered with or without DATS (at dose 40 mg/kg by gavage) treatment groups. The results indicate that cardiac dysfunction, apoptosis, and JNK, ERK, and NF-κB activation by Dox were reversed by treatment with DATS. CONCLUSION DATS appears to suppress Dox-induced cardiomyocyte apoptosis by inhibiting NADPH oxidase-related ROS production and the downstream JNK/ERK/NF-κB signaling pathway; DATS may possess clinical therapeutic potential by blocking Dox-induced cardiotoxicity.
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Affiliation(s)
- Su-Ying Wen
- Department of Dermatology, Taipei City Hospital, Renai Branch, Taipei, Taiwan
- Center for General Education, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Cheng-Yen Tsai
- Department of Pediatrics, China Medical University Beigang Hospital, Yunlin, Taiwan, 651, Republic of China
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan, 404, Republic of China
| | - Pei-Ying Pai
- Department of Pathology, China Medical University Hospital, Taichung, Taiwan
| | - Yi-Wei Chen
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan, 404, Republic of China
| | - Yao-Chih Yang
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan, 404, Republic of China
| | - Ritu Aneja
- Department of Biology, Georgia State University, Atlanta, Georgia, 30303
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan, 404, Republic of China
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan, 404, Republic of China
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan, 413, Republic of China
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan, 404, Republic of China
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18
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Huang PC, Wang GJ, Fan MJ, Asokan Shibu M, Liu YT, Padma Viswanadha V, Lin YL, Lai CH, Chen YF, Liao HE, Huang CY. Cellular apoptosis and cardiac dysfunction in STZ-induced diabetic rats attenuated by anthocyanins via activation of IGFI-R/PI3K/Akt survival signaling. ENVIRONMENTAL TOXICOLOGY 2017; 32:2471-2480. [PMID: 28856781 DOI: 10.1002/tox.22460] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 08/02/2017] [Accepted: 08/06/2017] [Indexed: 06/07/2023]
Abstract
Anthocyanins are known cyto-protective agents against various stress conditions. In this study cardio-protective effect of anthocyanins from black rice against diabetic mellitus (DM) was evaluated using a streptozotocin (STZ)-induced DM rat model. Five-week-old male Wistar rats were administered with STZ (55 mg kg-1 , IP) to induce DM; rats in the treatment group received 250 mg oral anthocyanin/kg/day during the 4-week treatment period. DM and the control rats received normal saline through oral gavage. The results reveal that STZ-induced DM elevates myocardial apoptosis and associated proapoptotic proteins but down-regulates the proteins of IGF1R mediated survival signaling mechanism. Furthermore, the functional parameters such as the ejection-fraction and fraction-shortening in the DM rat hearts declined considerably. However, the rats treated with anthocyanins significantly reduced apoptosis and the associated proapoptotic proteins and further increased the survival signals to restore the cardiac functions in DM rats. Anthocyanin supplementation enhances cardiomyocyte survival and restores cardiac function.
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Affiliation(s)
- Pei-Chen Huang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- Department of Obstetrics and Gynecology, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan
| | - Guei-Jane Wang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Ming-Jen Fan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | | | - Yin-Tso Liu
- Department of cardiology, Asia University and Asia University Hospital, Taichung, Taiwan
| | | | - Yi-Lin Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chao-Hung Lai
- Division of Cardiology, Department of Internal Medicine, Taichung Armed Force General Hospital, Taichung, Taiwan
| | - Yu-Feng Chen
- Division of Cardiology, Department of Internal Medicine, Taichung Armed Force General Hospital, Taichung, Taiwan
| | - Hung-En Liao
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
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19
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Chen TS, Liou SY, Kuo CH, Pan LF, Yeh YL, Liou J, Padma VV, Yao CH, Kuo WW, Huang CY. Green tea epigallocatechin gallate enhances cardiac function restoration through survival signaling expression in diabetes mellitus rats with autologous adipose tissue-derived stem cells. J Appl Physiol (1985) 2017; 123:1081-1091. [PMID: 28546469 DOI: 10.1152/japplphysiol.00471.2016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 04/28/2017] [Accepted: 04/28/2017] [Indexed: 12/12/2022] Open
Abstract
The present study tests a hypothesis that cardioprotective effects mediated by autologous adipose-derived stem cells (ADSC) in rats afflicted with insulin-dependent diabetes mellitus (IDDM) may be synergistically enhanced by oral treatment with green tea epigallocatechin gallate (EGCG). Wistar rats were divided into sham, DM, DM+ADSC (autologous transplanted 1 × 106 cells per rat), and DM+ADSC+E (E, green tea oral administration EGCG). Heart tissues were isolated from all rats, and investigations were performed after 2-mo treatment. In the sham, DM, and DM+ADSC groups, we found that DM induced cardiac dysfunction (sham and DM) and autologous ADSC transplantation could partially recover cardiac functions (DM and DM+ADSC) in DM rats. Compared with DM+ADSC, significant improvement in cardiac functions can be observed in DM+ADSC+E in echocardiographic data, histological observations, and even cellular protein expression. Oral green tea EGCG administration and autologous ADSC transplantation show synergistically beneficial effects on diabetic cardiac myopathy in DM rats. NEW & NOTEWORTHY Cardiomyopathy can be induced in rats with diabetes mellitus (DM). Heart function can be restored in DM rats with adipose-derived stem cell treatment. Oral epigallocatechin gallate (EGCG) administration synergistically enhances cardiac function in DM rats with stem cell treatment. The EGCG and stem cell treatment cross-effect occurs via survival protein expression.
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Affiliation(s)
- Tung-Sheng Chen
- Biomaterials Translational Research Center, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Show-Yih Liou
- Formosan Blood Purification Foundation, Taipei, Taiwan
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Lung-Fa Pan
- Division of Cardiology, Armed Force Taichung General Hospital, Taichung, Taiwan
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Jeffery Liou
- Comprehensive Weight Management Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - V. Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - Chun-Hsu Yao
- Biomaterials Translational Research Center, China Medical University Hospital, Taichung, Taiwan
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Biomedical Informatics, Asia University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan; and
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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20
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Tsai CY, Wen SY, Cheng SY, Wang CH, Yang YC, Viswanadha VP, Huang CY, Kuo WW. Nrf2 Activation as a Protective Feedback to Limit Cell Death in High Glucose-Exposed Cardiomyocytes. J Cell Biochem 2017; 118:1659-1669. [PMID: 27859591 DOI: 10.1002/jcb.25785] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/07/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Cheng-Yen Tsai
- Department of Pediatrics; China Medical University Beigang Hospital; Yunlin 651 Taiwan,ROC
- School of Chinese Medicine; College of Chinese Medicine; China Medical University; Taichung 40402 Taiwan
| | - Su-Ying Wen
- Department of Dermatology; Taipei City Hospital; Renai Branch; Taipei Taiwan
- Center for General Education; Mackay Junior College of Medicine; Nursing, and Management; Taipei Taiwan
| | - Shi-Yann Cheng
- Department of Medical Education and Research and Department of Obstetrics and Gynecology; China Medical University Beigang Hospital; Yunlin 651 Taiwan,ROC
- Department of Obstetrics and Gynecology; China Medical University An Nan Hospital; Yunlin 651 Taiwan,ROC
- Obstetrics and Gynecology; School of Medicine; China Medical University; Taichung Taiwan
| | - Chung-Hsing Wang
- Department of Pediatrics; China Medical University Hospital; Taichung 404 Taiwan,ROC
| | - Yao-Chih Yang
- Department of Biological Science and Technology; College of Biopharmaceutical and Food Sciences; China Medical University; Taichung 404 Taiwan,ROC
| | | | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science; China Medical University; Taichung 404 Taiwan,ROC
- Department of Chinese Medicine; China Medical University Hospital; Taichung 404 Taiwan,ROC
- Department of Health and Nutrition Biotechnology; Asia University; Taichung 413 Taiwan,ROC
| | - Wei-Wen Kuo
- Department of Biological Science and Technology; College of Biopharmaceutical and Food Sciences; China Medical University; Taichung 404 Taiwan,ROC
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21
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Factors Influencing the Incidence of Obesity in Australia: A Generalized Ordered Probit Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14020177. [PMID: 28208649 PMCID: PMC5334731 DOI: 10.3390/ijerph14020177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/06/2017] [Indexed: 12/18/2022]
Abstract
The increasing health costs of and the risks factors associated with obesity are well documented. From this perspective, it is important that the propensity of individuals towards obesity is analyzed. This paper uses longitudinal data from the Household Income and Labour Dynamics in Australia (HILDA) Survey for 2005 to 2010 to model those variables which condition the probability of being obese. The model estimated is a random effects generalized ordered probit, which exploits two sources of heterogeneity; the individual heterogeneity of panel data models and heterogeneity across body mass index (BMI) categories. The latter is associated with non-parallel thresholds in the generalized ordered model, where the thresholds are functions of the conditioning variables, which comprise economic, social, and demographic and lifestyle variables. To control for potential predisposition to obesity, personality traits augment the empirical model. The results support the view that the probability of obesity is significantly determined by the conditioning variables. Particularly, personality is found to be important and these outcomes reinforce other work examining personality and obesity.
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22
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The Coexistence of Hypertension and Ovariectomy Additively Increases Cardiac Apoptosis. Int J Mol Sci 2016; 17:ijms17122036. [PMID: 27929425 PMCID: PMC5187836 DOI: 10.3390/ijms17122036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 11/23/2016] [Accepted: 11/30/2016] [Indexed: 01/19/2023] Open
Abstract
To investigate whether the coexistence of hypertension and ovariectomy will increase cardiac Fas receptor and mitochondrial-dependent apoptotic pathways, histopathological analysis, the TUNEL assay and Western blotting were performed on the excised hearts from three groups of female spontaneously hypertensive rats (SHR), which were divided into a sham-operated group (SHR-Sham), bilaterally ovariectomized group (SHR-OVX) and normotensive Wistar Kyoto rats (WKY). Compared with the WKY group, the SHR-Sham group exhibited decreased protein levels of ERα, ERβ, p-Akt/Akt, Bcl-2, Bcl-xL and p-Bad and decreased further in the SHR-OVX group, as well as protein levels of t-Bid, Bak, Bad, Bax, cytochrome c, activated caspase-9 and activated caspase-3 (mitochondria-dependent apoptosis) increased in the SHR-Sham group and increased further in the SHR-OVX group. Compared with the WKY group, protein levels of Fas ligand, TNF-α, Fas death receptors, TNFR1, FADD and activated caspase-8 (Fas receptor-dependent apoptosis) increased in the SHR-Sham group, but did not increase in the SHR-OVX group, except Fas ligand and TNF-α. The coexistence of hypertension and ovariectomy attenuated the estrogen receptor survival pathway and appeared to additively increase the cardiac mitochondria-dependent, but not the Fas receptor-dependent apoptosis pathway, which might provide one possible mechanism for the development of cardiac abnormalities in hypertensive postmenopausal women.
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23
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Fu CY, Kuo WW, Ho TJ, Wen SY, Lin LC, Tseng YS, Hung HC, Viswanadha VP, Yang JJ, Huang CY. ZAKβ antagonizes and ameliorates the cardiac hypertrophic and apoptotic effects induced by ZAKα. Cell Biochem Funct 2016; 34:606-612. [PMID: 27859413 DOI: 10.1002/cbf.3234] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 11/09/2022]
Abstract
ZAK (sterile alpha motif and leucine zipper containing kinase AZK), a serine/threonine kinase with multiple biochemical functions, has been associated with various cell processes, including cell proliferation, cell differentiation, and cardiac hypertrophy. In our previous reports, we found that the activation of ZAKα signaling was critical for cardiac hypertrophy. In this study, we show that the expression of ZAKα activated apoptosis through both a FAS-dependent pathway and a mitochondria-dependent pathway by subsequently inducing caspase-3. ZAKβ, an isoform of ZAKα, is dramatically expressed during cardiac hypertrophy and apoptosis. The interaction between ZAKα and ZAKβ was demonstrated here using immunoprecipitation. The results show that ZAKβ has the ability to diminish the expression level of ZAKα. These findings reveal an inherent regulatory role of ZAKβ to antagonize ZAKα and to subsequently downregulate the cardiac hypertrophy and apoptosis induced by ZAKα.
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Affiliation(s)
- Chien-Yao Fu
- Graduate Institute of Aging Medicine, China Medical University, Taichung, Taiwan.,Orthopaedic Department, Armed Forces General Hospital, Taichung, Taiwan.,Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Tsung-Jung Ho
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.,Chinese Medicine Department, China Medical University Beigang Hospital, Taiwan
| | - Su-Ying Wen
- Department of Dermatology, Taipei City Hospital, Renai Branch, Taipei, Taiwan.,Center for General Education, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Ling-Chun Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Yan-Shen Tseng
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Hui-Chuan Hung
- Department of Nursing, National Taichung University of Science and Technology, Taichung, Taiwan
| | | | - Jaw-Ji Yang
- School of Dentistry, Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan.,Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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24
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Liao HE, Shibu MA, Kuo WW, Pai PY, Ho TJ, Kuo CH, Lin JY, Wen SY, Viswanadha VP, Huang CY. Deep sea minerals prolong life span of streptozotocin-induced diabetic rats by compensatory augmentation of the IGF-I-survival signaling and inhibition of apoptosis. ENVIRONMENTAL TOXICOLOGY 2016; 31:769-781. [PMID: 25727812 DOI: 10.1002/tox.22086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 06/04/2023]
Abstract
Consumption of deep sea minerals (DSM), such as magnesium, calcium, and potassium, is known to reduce hypercholesterolemia-induced myocardial hypertrophy and cardiac-apoptosis and provide protection against cardiovascular diseases. Heart diseases develop as a lethal complication among diabetic patients usually due to hyperglycemia-induced cardiac-apoptosis that causes severe cardiac-damages, heart failure, and reduced life expectancy. In this study, we investigated the potential of DSM and its related cardio-protection to increase the life expectancy in diabetic rats. In this study, a heart failure rat model was developed by using streptozotocin (65 mg kg(-1) ) IP injection. Different doses of DSM-1× (37 mg kg(-1) day(-1) ), 2× (74 mg kg(-1) day(-1) ) and 3× (111 mg kg(-1) day(-1) ), were administered to the rats through gavages for 4 weeks. The positive effects of DSM on the survival rate of diabetes rats were determined with respect to the corresponding effects of MgSO4 . Further, to understand the mechanism by which DSM enhances the survival of diabetic rats, their potential to regulate cardiac-apoptosis and control cardiac-dysfunction were examined. Echocardiogram, tissue staining, TUNEL assay, and Western blotting assay were used to investigate modulations in the myocardial contractile function and related signaling protein expression. The results showed that DSM regulate apoptosis and complement the cardiomyocyte proliferation by enhancing survival mechanisms. Moreover DSM significantly reduced the mortality rate and enhanced the survival rate of diabetic rats. Experimental results show that DSM administration can be an effective strategy to improve the life expectancy of diabetic subjects by improving cardiac-cell proliferation and by controlling cardiac-apoptosis and associated cardiac-dysfunction. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 769-781, 2016.
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Affiliation(s)
- Hung-En Liao
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Marthandam Asokan Shibu
- College of Medicine, Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Taichung, Taiwan
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Jing-Ying Lin
- Department of Nursing, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Su-Ying Wen
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | | | - Chih-Yang Huang
- College of Medicine, Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Bharathiar University, Coimbatore, India
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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25
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Anti-apoptotic and Pro-survival Effects of Food Restriction on High-Fat Diet-Induced Obese Hearts. Cardiovasc Toxicol 2016; 17:163-174. [DOI: 10.1007/s12012-016-9370-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Chen YF, Shibu MA, Fan MJ, Chen MC, Viswanadha VP, Lin YL, Lai CH, Lin KH, Ho TJ, Kuo WW, Huang CY. Purple rice anthocyanin extract protects cardiac function in STZ-induced diabetes rat hearts by inhibiting cardiac hypertrophy and fibrosis. J Nutr Biochem 2016; 31:98-105. [PMID: 27133428 DOI: 10.1016/j.jnutbio.2015.12.020] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 12/30/2015] [Accepted: 12/31/2015] [Indexed: 11/29/2022]
Abstract
Diabetes mellitus (DM) often causes chronic inflammation, hypertrophy, apoptosis and fibrosis in the heart and subsequently leads to myocardial remodeling, deteriorated cardiac function and heart failure. Anthocyanins are strong antioxidants that show effective cardioprotective properties. Our aim was to determine whether anthocyanin extracted from purple rice provides protective effects in DM hearts. Five-week-old male Wistar rats were administered with streptozotocin (STZ) to induce type 1 diabetes. Animals were randomly divided into normal group, DM group (induced by 55mg/kg STZ, i.p.) and DM with anthocyanin group (250mg/kg/day, feeding 4 weeks). After treatment, the left ventricular tissues were collected to observe the relevant changes in the heart and the associated molecular events were determined by Western blotting assay. STZ-induced DM increased the proinflammatory signaling proteins in the heart and triggered the development of cardiac hypertrophy and fibrosis. Significant reduction in the heart function index such as left ventricular end-diastolic dimension and left ventricular end-systolic dimension was observed in the STZ-induced DM rat hearts, suggesting myocardial tissue damage and loss of heart function. Treatment with anthocyanin from purple rice extract, however, reduced the effect of DM and showed significant reduction in cardiac hypertrophy and fibrosis. Anthocyanin therefore restores the deteriorating cardiac functions in DM rats as evident from their heart functional parameters.
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Affiliation(s)
- Yu-Feng Chen
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Section of Cardiology, Yuan Rung Hospital, Yuanlin, Taiwan
| | | | - Ming-Jen Fan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Ming-Cheng Chen
- Division of Colorectal Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | | | - Yi-Lin Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chao-Hung Lai
- Division of Cardiology, Department of Internal Medicine, Armed Force Taichung General Hospital, Taichung, Taiwan
| | - Kuan-Ho Lin
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan.
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27
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Chen WK, Kuo WW, Hsieh DJY, Chang HN, Pai PY, Lin KH, Pan LF, Ho TJ, Viswanadha VP, Huang CY. CREB Negatively Regulates IGF2R Gene Expression and Downstream Pathways to Inhibit Hypoxia-Induced H9c2 Cardiomyoblast Cell Death. Int J Mol Sci 2015; 16:27921-30. [PMID: 26610485 PMCID: PMC4661925 DOI: 10.3390/ijms161126067] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/23/2015] [Indexed: 01/18/2023] Open
Abstract
During hypoxia, gene expression is altered by various transcription factors. Insulin-like growth factor-II (IGF2) is known to be induced by hypoxia, which binds to IGF2 receptor IGF2R that acts like a G protein-coupled receptor, might cause pathological hypertrophy or activation of the mitochondria-mediated apoptosis pathway. Cyclic adenosine monophosphate (cAMP) responsive element-binding protein (CREB) is central to second messenger-regulated transcription and plays a critical role in the cardiomyocyte survival pathway. In this study, we found that IGF2R level was enhanced in H9c2 cardiomyoblasts exposed to hypoxia in a time-dependent manner but was down-regulated by CREB expression. The over-expression of CREB in H9c2 cardiomyoblasts suppressed the induction of hypoxia-induced IGF2R expression levels and reduced cell apoptosis. Gel shift assay results further indicated that CREB binds to the promoter sequence of IGF2R. With a luciferase assay method, we further observed that CREB represses IGF2R promoter activity. These results suggest that CREB plays an important role in the inhibition of IGF2R expression by binding to the IGF2R promoter and further suppresses H9c2 cardiomyoblast cell apoptosis induced by IGF2R signaling under hypoxic conditions.
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Affiliation(s)
- Wei-Kung Chen
- Department of Emergency Medicine, China Medical University Hospital, Taichung 40402, Taiwan.
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung 40402, Taiwan.
| | - Dennis Jine-Yuan Hsieh
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan.
| | - Hsin-Nung Chang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung 40402, Taiwan.
| | - Kuan-Ho Lin
- Department of Emergency Medicine, China Medical University Hospital, Taichung 40402, Taiwan.
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan.
- College of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Lung-Fa Pan
- Cardiology Department, Taichung Armed Forces General Hospital. Taichung 41152, Taiwan.
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan.
| | - Tsung-Jung Ho
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.
- Chinese Medicine Department, China Medical University Beigang Hospital, Yunlin 651, Taiwan.
| | | | - Chih-Yang Huang
- Chinese Medicine Department, China Medical University Beigang Hospital, Yunlin 651, Taiwan.
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan.
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28
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Lai CH, Han CK, Shibu MA, Pai PY, Ho TJ, Day CH, Tsai FJ, Tsai CH, Yao CH, Huang CY. Lumbrokinase from earthworm extract ameliorates second-hand smoke-induced cardiac fibrosis. ENVIRONMENTAL TOXICOLOGY 2015; 30:1216-1225. [PMID: 24706507 DOI: 10.1002/tox.21993] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/19/2014] [Accepted: 03/23/2014] [Indexed: 06/03/2023]
Abstract
Exposure to tobacco smoke has epidemiologically been linked to the occurrence of cardiovascular disease among nonsmokers but the associated molecular events are not well elucidated yet. When Sprague Dawley rats were exposed to second-hand tobacco cigarette smoke twice a day for a 30 days period at an exposure rate of 10 cigarettes/30 min, they showed adverse effects including reduced left ventricle weight, increased cardiac damages, deteriorated cardiac features, and cardiac fibrosis. Exposure to second-hand smoking (SHS) increased the molecular markers of cardiac fibrosis such as urokinase plasminogen activator and matrix metallopeptidases. The modulations in the protein levels were led by the activation of extracellular signal-regulated kinases (ERK1/2), the transcription factor-specificity protein 1 (SP1), and the fibrogenic master switch-connective for epithelial-mesenchymal transition tissue growth factor there by indicating their effective role in SHS-induced myocardial infraction. Dilong, an edible earthworm extract used in Chinese medicine and its bioactive fibrinolytic enzyme product-lumbrokinase, when administered in rats, restricted the SHS exposure induced cardiac fibrosis and provided cardio-protection. The results show that lumbrokinase and dilong administration can efficiently prevent epidemiological incidence of cardiac disease among SHS-exposed nonsmokers.
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Affiliation(s)
- Chao-Hung Lai
- Graduate Institute of Aging Medicine, China Medical University, Taichung, Taiwan
- Division of Cardiology, Department of Internal Medicine, Armed Force Taichung General Hospital, Taichung, Taiwan
| | - Chien-Kuo Han
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | | | - Pei Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Jung Ho
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, China Medical University Beigang Hospital, Taiwan
| | | | - Fuu-Jen Tsai
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Chang-Hai Tsai
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Chun-Hsu Yao
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
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29
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Hu WS, Ting WJ, Chiang WD, Pai P, Yeh YL, Chang CH, Lin WT, Huang CY. The Heart Protection Effect of Alcalase Potato Protein Hydrolysate Is through IGF1R-PI3K-Akt Compensatory Reactivation in Aging Rats on High Fat Diets. Int J Mol Sci 2015; 16:10158-72. [PMID: 25950762 PMCID: PMC4463638 DOI: 10.3390/ijms160510158] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/21/2015] [Accepted: 04/23/2015] [Indexed: 12/27/2022] Open
Abstract
The prevalence of obesity is high in older adults. Alcalase potato protein hydrolysate (APPH), a nutraceutical food, might have greater benefits and be more economical than hypolipidemic drugs. In this study, serum lipid profiles and heart protective effects were evaluated in high fat diet (HFD) induced hyperlipidemia in aging rats treated with APPH (15, 45 and 75 mg/kg/day) and probucol (500 mg/kg/day). APPH treatments reduced serum triacylglycerol (TG), total cholesterol (TC), and low density lipoprotein (LDL) levels to the normal levels expressed in the control group. Additionally, the IGF1R-PI3K-Akt survival pathway was reactivated, and Fas-FADD (Fas-associated death domain) induced apoptosis was inhibited by APPH treatments (15 and 45 mg/kg/day) in HFD aging rat hearts. APPH (75 mg/kg/day) rather than probucol (500 mg/kg/day) treatment could reduce serum lipids without affecting HDL expression. The heart protective effect of APPH in aging rats with hyperlipidemia was through lowering serum lipids and enhancing the activation of the compensatory IGF1R-PI3K-Akt survival pathway.
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Affiliation(s)
- Wei-Syun Hu
- PhD Program for Aging, China Medical University, Taichung 40402, Taiwan.
| | - Wei-Jen Ting
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Wen-Dee Chiang
- Department of Food Science, College of Agriculture, Tunghai University, Taichung 40704, Taiwan.
| | - Peiying Pai
- Division of Cardiology, China Medical University Hospital, Taichung 40402, Taiwan.
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua 50006, Taiwan.
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 35664, Taiwan.
| | - Chung-Ho Chang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan Town 35053, Taiwan.
| | - Wan-Teng Lin
- Department of Hospitality Management, College of Agriculture, Tunghai University, Taichung 40704, Taiwan.
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung 40402, Taiwan.
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan.
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30
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Hsia TC, Yu CC, Hsu SC, Tang NY, Lu HF, Huang YP, Wu SH, Lin JG, Chung JG. Cantharidin induces apoptosis of H460 human lung cancer cells through mitochondria-dependent pathways. Int J Oncol 2014; 45:245-54. [PMID: 24818581 DOI: 10.3892/ijo.2014.2428] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/25/2014] [Indexed: 11/05/2022] Open
Abstract
Lung cancer is one of the leading causes of death in cancer-related diseases. Cantharidin (CTD) is one of the components of natural mylabris (Mylabris phalerata Pallas). Numerous studies have shown that CTD induced cytotoxic effects on cancer cells. However, there is no report to demonstrate that CTD induced apoptosis in human lung cancer cells. Herein, we investigated the effect of CTD on the cell death via the induction of apoptosis in H460 human lung cancer cells. Flow cytometry assay was used for examining the percentage of cell viability, sub-G1 phase of the cell cycle, reactive oxygen species (ROS) and Ca²⁺ productions and the levels of mitochondrial membrane potential (∆Ψm). Annexin V/PI staining and DNA gel electrophoresis were also used for examining cell apoptosis. Western blot analysis was used to examine the changes of apoptosis associated protein expression and confocal microscopy for examining the translocation apoptosis associated protein. Results indicated that CTD significantly induced cell morphological changes and decreased the percentage of viable H460 cells. CTD induced apoptosis based on the occurrence of sub-G1 phase and DNA fragmentation. We found that CTD increased gene expression (mRNA) of caspase-3 and -8. Moreover, CTD increased ROS and Ca2+ production and decreased the levels of ∆Ψm. Western blot analysis results showed that CTD increased the expression of cleavage caspase-3 and -8, cytochrome c, Bax and AIF but inhibited the levels of Bcl-xL. CTD promoted ER stress associated protein expression such as GRP78, IRE1α, IRE1β, ATF6α and caspase-4 and it also promoted the expression of calpain 2 and XBP-1, but inhibited calpain 1 that is associated with apoptosis pathways. Based on those observations, we suggest that CTD may be used as a novel anticancer agent for the treatment of lung cancer in the future.
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Affiliation(s)
- Te-Chun Hsia
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Chien-Chih Yu
- School of Pharmacy, China Medical University, Taichung, Taiwan, R.O.C
| | - Shu-Chun Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Nou-Ying Tang
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Hsu-Feng Lu
- Department of Clinical Pathology, Cheng Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - Yi-Ping Huang
- Department of Physiology, China Medical University, Taichung, Taiwan, R.O.C
| | - Shin-Hwar Wu
- Division of Critical Care Medicine, Department of Medicine, Changhua Christian Hospital, Changhua, Taiwan, R.O.C
| | - Jaung-Geng Lin
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Jing-Gung Chung
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
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ANG II promotes IGF-IIR expression and cardiomyocyte apoptosis by inhibiting HSF1 via JNK activation and SIRT1 degradation. Cell Death Differ 2014; 21:1262-74. [PMID: 24786827 DOI: 10.1038/cdd.2014.46] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 01/25/2023] Open
Abstract
Hypertension-induced cardiac hypertrophy and apoptosis are major characteristics of early-stage heart failure. Our previous studies found that the activation of insulin-like growth factor receptor II (IGF-IIR) signaling was critical for hypertensive angiotensin II (ANG II)-induced cardiomyocyte apoptosis. However, the detailed mechanism by which ANG II regulates IGF-IIR in heart cells remains elusive. In this study, we found that ANG II activated its downstream kinase JNK to increase IGF-IIR expression through the ANG II receptor angiotensin type 1 receptor. JNK activation subsequently led to sirtuin 1 (SIRT1) degradation via the proteasome, thus preventing SIRT1 from deacetylating heat-shock transcription factor 1 (HSF1). The resulting increase in the acetylation of HSF1 impaired its ability to bind to the IGF-IIR promoter region (nt -748 to -585). HSF1 protected cardiomyocytes by acting as a repressor of IGF-IIR gene expression, and ANG II diminished this HSF1-mediated repression through enhanced acetylation, thus activating the IGF-IIR apoptosis pathway. Taken together, these results suggest that HSF1 represses IGF-IIR gene expression to protect cardiomyocytes. ANG II activates JNK to degrade SIRT1, resulting in HSF1 acetylation, which induces IGF-IIR expression and eventually results in cardiac hypertrophy and apoptosis. HSF1 could be a valuable target for developing treatments for cardiac diseases in hypertensive patients.
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Gelsolin (GSN) induces cardiomyocyte hypertrophy and BNP expression via p38 signaling and GATA-4 transcriptional factor activation. Mol Cell Biochem 2014; 390:263-70. [PMID: 24505034 DOI: 10.1007/s11010-014-1977-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/21/2014] [Indexed: 12/23/2022]
Abstract
Cardiomyocyte hypertrophy is an adaptive response of the heart to various types of stress. During the period of stress accumulation, the transition from physiological hypertrophy to pathological hypertrophy results in the promotion of heart failure. Gelsolin (GSN) is a member of the actin-binding proteins, which regulate dynamic actin filament organization by severing and capping. Moreover, GSN also regulates cell morphology, differentiation, movement, and apoptosis. In this study, we used H9c2 and H9c2-GSN stable clones in an attempt to understand the mechanisms of GSN overexpression in cardiomyocytes. These data showed that the overexpression of GSN in H9c2-induced cardiac hypertrophy and increased the pathological hypertrophy markers atrial natriuretic peptide brain natriuretic peptide. Furthermore, we found that E-cadherin expression decreased with the overexpression of GSN in H9c2, but β-catenin expression increased. These data presume that the cytoskeleton is loose. Further, previous studies show that the mitogen-activated protein kinase pathway can induce cardiac hypertrophy. Our data showed that p-p38 expression increased with the overexpression of GSN in H9c2, and the transcription factor p-GATA4 expression also increased, suggesting that the overexpression of GSN in H9c2-induced cardiac hypertrophy seemed to be regulated by the p38/GATA4 pathway. Moreover, we used both the p38 inhibitor (SB203580) and GSN siRNA to confirm our conjecture. We found that both of these factors significantly suppressed gelsolin-induced cardiac hypertrophy through p38/GATA4 signaling pathway. Therefore, we predict that the gene silencing of GSN and/or the downstream blocking of GSN along the p38 pathway could be applied to ameliorate pathological cardiac hypertrophy in the future.
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Chan CY, Mong MC, Liu WH, Huang CY, Yin MC. Three pentacyclic triterpenes protect H9c2 cardiomyoblast cells against high-glucose-induced injury. Free Radic Res 2014; 48:402-11. [DOI: 10.3109/10715762.2014.880113] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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34
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Cullen A, Ferguson A. Perioperative management of the severely obese patient: a selective pathophysiological review. Can J Anaesth 2012; 59:974-96. [DOI: 10.1007/s12630-012-9760-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 07/12/2012] [Indexed: 12/15/2022] Open
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