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Jung YR, Yim JH, Lee YJ, Lee SB, Heo SY, Bae SG, Kim KT, Kwon YS, Park SJ, Park JK, Kim TH. Decreased SMP30 Expression Is Related With EMT in the Kidneys of Two Siberian Tigers With CKD. In Vivo 2024; 38:226-234. [PMID: 38148068 PMCID: PMC10756483 DOI: 10.21873/invivo.13429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND/AIM Chronic kidney disease (CKD) is one of the most common causes of mortality in wild non-domestic felidae. The molecular mechanism regulating renal fibrosis in nephropathy is not fully understood especially in the felidae. This study aimed to elucidate senescence marker protein 30 (SMP30) expression patterns and its relationship with epithelial-mesenchymal transition (EMT) by immunostaining in two necropsied Siberian tigers (Panthera tigris altaica) with CKD. MATERIALS AND METHODS Two kidney samples from male Siberian tigers were fixed and tissue sections were stained for histopathological assay. RESULTS In CKD, renal tubular epithelial cells lost their tubular structures surrounded by severe interstitial fibrosis and were detached from the basement membrane. These damaged cells resembled the morphology of mesenchymal cells and showed much lower SMP30 expression compared with intact tubular epithelial cells. These cells also expressed vimentin, which is specifically expressed by mesenchymal cells, and through double staining, it was observed that vimentin was expressed in the tubular epithelial cells where SMP30 was not expressed. In addition, double-positive expression of pan-cytokeratin (pan-CK) and vimentin was found in damaged epithelial cells with mesenchymal features. CONCLUSION We demonstrated possible evidence to understand the role of SMP30 as a new pivotal factor and the possibility of decreased SMP30 as a potential indicator of EMT at the end stage of CKD.
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Affiliation(s)
- Yi-Rang Jung
- Kyungpook National University, College of Veterinary Medicine, Department of Veterinary Pathology, Daegu, Republic of Korea
- Daegu Health College, Department of Companion Animal Health Management, Daegu, Republic of Korea
| | - Jae-Hyuk Yim
- Kyungpook National University, College of Veterinary Medicine, Department of Veterinary Pathology, Daegu, Republic of Korea
| | - Young-Jin Lee
- Kyungpook National University, College of Veterinary Medicine, Department of Veterinary Pathology, Daegu, Republic of Korea
| | - Sae-Bom Lee
- Baekdudaegan National Arboretum, Siberian Tiger Conservation Center, Bonghwa, Republic of Korea
| | - Sung-Yong Heo
- Baekdudaegan National Arboretum, Siberian Tiger Conservation Center, Bonghwa, Republic of Korea
| | - Seul-Gi Bae
- Kyungpook National University, College of Veterinary Medicine, Daegu, Republic of Korea
| | - Kyoo-Tae Kim
- Kyungpook National University, College of Veterinary Medicine, Daegu, Republic of Korea
| | - Young-Sam Kwon
- Kyungpook National University, College of Veterinary Medicine, Daegu, Republic of Korea
| | - Sang-Joon Park
- Kyungpook National University, College of Veterinary Medicine, Daegu, Republic of Korea
| | - Jin-Kyu Park
- Kyungpook National University, College of Veterinary Medicine, Department of Veterinary Pathology, Daegu, Republic of Korea;
| | - Tae-Hwan Kim
- Kyungpook National University, College of Veterinary Medicine, Department of Veterinary Pathology, Daegu, Republic of Korea;
- Baekdudaegan National Arboretum, Siberian Tiger Conservation Center, Bonghwa, Republic of Korea
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Monteiro LM, Barbosa CF, Lichtenecker DCK, Argeri R, Gomes GN. Sex modifies the renal consequences of high fructose consumption introduced after weaning. Front Physiol 2023; 14:1090090. [PMID: 37008005 PMCID: PMC10050681 DOI: 10.3389/fphys.2023.1090090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
After lactation, many children consume fructose-rich processed foods. However, overconsumption of these foods can predispose individuals to non-communicable chronic diseases, which can have different repercussions depending on the sex. Thus, we evaluated the effects of fructose overload introduced after weaning on the renal function of young rats of both sexes.Methods: After weaning, male and female offspring of Wistar rats were assigned to drink water (the male/water and female/water groups) or 20% D-fructose solution (male/fructose and female/fructose groups). Food and water or fructose solution was offered ad libitum. Rats were evaluated at 4 months. Parameters analyzed: blood pressure, body weight, triglyceride levels, glomerular filtration rate, sodium, potassium, calcium, and magnesium excretion, macrophage infiltration, and eNOS and 8OHdG expression in renal tissue. CEUA-UNIFESP: 2757270117.Results: Fructose intake affected the blood pressure, body weight, and plasma triglyceride in all rats. Glomerular filtration rate was significantly reduced in males that received fructose when compared to that of the control group. Sodium and potassium excretion decreased in all fructose-treated rats; however, the excreted load of these ions was significantly higher in females than in males. In the female control group, calcium excretion was higher than that of the male control group. Fructose overload increased magnesium excretion in females, and also increased macrophage infiltration and reduced eNOS expression in both males and females.Conclusion: Fructose overload introduced after weaning caused metabolic and renal changes in rats. Renal function was more affected in males; however, several significant alterations were also observed in the female-fructose group.
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Affiliation(s)
- Letícia Maria Monteiro
- Department of Physiology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
- Postgraduate Program in Translational Medicine, Department of Medicine, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
| | - Celine Farias Barbosa
- Department of Physiology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
| | | | - Rogério Argeri
- Department of Physiology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
- Postgraduate Program in Translational Medicine, Department of Medicine, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
| | - Guiomar Nascimento Gomes
- Department of Physiology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
- *Correspondence: Guiomar Nascimento Gomes,
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Liang Y, Liang N, Yin L, Xiao F. Cellular and molecular mechanisms of xenobiotics-induced premature senescence. Toxicol Res (Camb) 2020; 9:669-675. [PMID: 33178427 DOI: 10.1093/toxres/tfaa073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/12/2020] [Accepted: 08/24/2020] [Indexed: 01/10/2023] Open
Abstract
Premature senescence, which share common features with replicative senescence such as morphology, senescence-associated galactosidase (SA-β-gal) activity, cell cycle regulation, and gene expression, can be triggered by the exposure of various xenobiotics including environmental pollutant, peroxides, and anticancer drugs. The exact mechanisms underlying the senescence onset and stabilization are still obscure. In this review, we summarized the possible cellular and molecular mechanisms of xenobiotics-induced premature senescence, including induction of reactive oxygen species (ROS), tumor suppressors, and DNA damage; disequilibrium of calcium homeostasis; activation of transforming growth factor-β (TGF-β); and blockage of aryl hydrocarbon receptor (AHR) pathway. The deeper understanding of the molecular mechanisms underlying xenobiotics-induced senescence may shed light on new therapeutic strategies for age-related pathologies and extend healthy lifespan.
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Affiliation(s)
- Yuehui Liang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, No. 238 Shangmayuanling Road, Kaifu District, Changsha, Hunan 410078, PR China
| | - Ningjuan Liang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, No. 238 Shangmayuanling Road, Kaifu District, Changsha, Hunan 410078, PR China
| | - Lirong Yin
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, No. 238 Shangmayuanling Road, Kaifu District, Changsha, Hunan 410078, PR China
| | - Fang Xiao
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, No. 238 Shangmayuanling Road, Kaifu District, Changsha, Hunan 410078, PR China
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Liu W, Zhao H, Su Y, Wang K, Li J, Xue S, Sun X, Qiu Z. Senescence marker protein 30 confers neuroprotection in oxygen-glucose deprivation/reoxygenation-injured neurons through modulation of Keap1/Nrf2 signaling: Role of SMP30 in OGD/R-induced neuronal injury. Hum Exp Toxicol 2020; 40:472-482. [PMID: 32909858 DOI: 10.1177/0960327120954243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Senescence marker protein 30 (SMP30) is a senescence marker molecule and identified as a calcium regulatory protein. Currently, SMP30 has emerged as a cytoprotective protein in a wide range of cell types. However, the role of SMP30 in regulating neuronal survival during cerebral ischemia/reperfusion injury remains unclear. In the present study, we aimed to investigate the biological function and regulatory mechanism of SMP30 on neuronal survival using a cellular model induced by oxygen-glucose deprivation/reoxygenation (OGD/R). The results showed that SMP30 expression was significantly decreased by OGD/R exposure in neurons. Functional experiments demonstrated that SMP30 overexpression significantly rescued the decreased cell viability and attenuated the apoptosis and reactive oxygen species generation in OGD/R-exposed neurons. By contrast, SMP30 knockdown exhibited the opposite effect. Mechanism research revealed that SMP30 overexpression contributed to the activation of nuclear factor erythroid 2-related factor (Nrf2)/antioxidant response element (ARE) signaling associated with downregulation of Kelch-like ECH-associated protein (Keap1). Keap1 overexpression or Nrf2 silencing significantly reversed SMP30-mediated neuroprotection against OGD/R-induced injury. Overall, these findings demonstrate that SMP30 overexpression protects neurons from OGD/R-induced apoptosis and oxidative stress by enhancing Nrf2/ARE antioxidant signaling via inhibition of Keap1. These data highlight the importance of the SMP30/Keap1/Nrf2/ARE signaling axis in regulating neuronal survival during cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Wenxiong Liu
- Department of Anesthesiology, The Hospital of Xidian Group, Xi'an, Shaanxi, China.,* These authors contributed equally to this work and shared the first authorship
| | - Haikang Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China.,* These authors contributed equally to this work and shared the first authorship
| | - Yuqiang Su
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Kefeng Wang
- Clinical Training Center, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Jing Li
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Sha Xue
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Xiaopeng Sun
- Department of Otolaryngology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
| | - Zhengguo Qiu
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
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Khalil R, Simitsidellis I, Kim NR, Jardi F, Schollaert D, Deboel L, Saunders P, Carmeliet G, Claessens F, Vanderschueren D, Decallonne B. Androgen action on renal calcium and phosphate handling: Effects of bisphosphonate treatment and low calcium diet. Mol Cell Endocrinol 2020; 514:110891. [PMID: 32533994 DOI: 10.1016/j.mce.2020.110891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/05/2020] [Accepted: 06/03/2020] [Indexed: 01/25/2023]
Abstract
Renal calcium and phosphate handling is an important contributor to mineral homeostasis and bone health and the androgen receptor (AR) is highly expressed in the kidney. We investigated the short term effects of androgen deprivation on renal calcium and phosphate reabsorption, independent of their effects on bone. Two weeks following orchidectomy (ORX) of adult mice, bone loss occurred along with hypercalciuria, which was similarly prevented by testosterone and dihydrotestosterone supplementation. Treatment with bisphosphonates prior to ORX also inhibited hypercalciuria, indicating that the calcium flux originated from the bone. Renal calcium and phosphate transporter expression was increased post-ORX, independent of bisphosphonates. Furthermore, androgen deprivation appeared to stimulate local synthesis of 1,25(OH)2D3. When bisphosphonate-treated mice were fed a low calcium diet, bone resorption was no longer blocked and secondary hyperparathyroidism developed, which was more pronounced in ORX mice than sham-operated mice. In conclusion, this study shows that androgen deprivation increased renal calcium and phosphate transporter expression, independent of bone, and underlines the importance of adequate intestinal calcium supply in circumstances of androgen deprivation and bisphosphonate treatment.
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Affiliation(s)
- Rougin Khalil
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Ioannis Simitsidellis
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Na Ri Kim
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Ferran Jardi
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Dieter Schollaert
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Ludo Deboel
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Philippa Saunders
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Geert Carmeliet
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Frank Claessens
- Molecular Endocrinology Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Belgium
| | - Dirk Vanderschueren
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium
| | - Brigitte Decallonne
- Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Aging, KU Leuven, Belgium.
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Lin PH, Kuo TH, Chen CC, Jian CY, Chen CW, Wang KL, Kuo YC, Shen HY, Hsia SM, Wang PS, Lieu FK, Wang SW. Downregulation of testosterone production through luteinizing hormone receptor regulation in male rats exposed to 17α-ethynylestradiol. Sci Rep 2020; 10:1576. [PMID: 32005928 PMCID: PMC6994641 DOI: 10.1038/s41598-020-58125-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/03/2020] [Indexed: 11/09/2022] Open
Abstract
The pharmaceutical 17α-ethynylestradiol (EE2) is considered as an endocrine-disrupting chemical that interferes with male reproduction and hormonal activation. In this study, we investigated the molecular mechanism underlying EE2-regulatory testosterone release in vitro and in vivo. The results show that EE2 treatment decreased testosterone release from rat Leydig cells. Treatment of rats with EE2 reduced plasma testosterone levels and decreased the sensitivity of human chorionic gonadotropin (hCG). EE2 reduced luteinizing hormone receptor (LHR) expression associated with decreased cAMP generation by downregulation of adenylyl cyclase activity and decreased intracellular calcium-mediated pathways. The expression levels of StAR and P450scc were decreased in Leydig cells by treatment of rats with EE2 for 7 days. The sperm motility in the vas deferens and epididymis was reduced, but the histopathological features of the testis and the total sperm number of the vas deferens were not affected. Moreover, the serum dihydrotestosterone (DHT) level was decreased by treatment with EE2. The prostate gland and seminal vesicle atrophied significantly, and their expression level of 5α-reductase type II was reduced after EE2 exposure. Taken together, these results demonstrate an underlying mechanism of EE2 to downregulate testosterone production in Leydig cells, explaining the damaging effects of EE2 on male reproduction.
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Affiliation(s)
- Po-Han Lin
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, 11031, Taiwan
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Tsung-Hsien Kuo
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Chih-Chieh Chen
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
- Department of Nutrition, China Medical University, Taichung, 40402, Taiwan
| | - Cai-Yun Jian
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Chien-Wei Chen
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
- College of Human Development and Health, National Taipei University of Nursing and Health Sciences, Taipei, 11219, Taiwan
| | - Kai-Lee Wang
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
- Department of Nursing, Ching Kuo Institute of Management and Health, Keelung, 20301, Taiwan
| | - Yuh-Chen Kuo
- Department of Urology, Yangming Branch of Taipei City Hospital, Taipei, 11146, Taiwan
| | - Heng-Yi Shen
- Department of Rehabilitation, Cheng Hsin General Hospital, Taipei, 11212, Taiwan
| | - Shih-Min Hsia
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, 11031, Taiwan
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, 11031, Taiwan
| | - Paulus S Wang
- Institute and Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan.
- Medical Center of Aging Research, China Medical University Hospital, Taichung, 40402, Taiwan.
- Department of Biotechnology, College of Health Science, Asia University, Taichung, 41354, Taiwan.
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, 11217, Taiwan.
| | - Fu-Kong Lieu
- Department of Rehabilitation, Cheng Hsin General Hospital, Taipei, 11212, Taiwan.
- Department of Physical Medicine and Rehabilitation, National Defense Medical Center, Taipei, 11490, Taiwan.
| | - Shyi-Wu Wang
- Aesthetic Medical Center, Department of Dermatology, Chang Gung Memorial Hospital, Taoyuan, 33378, Taiwan.
- Department of Physiology and Pharmacology, College of Medicine, Chang Gung University, Taoyuan, 33302, Taiwan.
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Dutta RK, Parween F, Hossain MS, Dhama N, Pandey P, Gupta RD. Comparative analysis of the metal-dependent structural and functional properties of mouse and human SMP30. PLoS One 2019; 14:e0218629. [PMID: 31220150 PMCID: PMC6586323 DOI: 10.1371/journal.pone.0218629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/05/2019] [Indexed: 11/25/2022] Open
Abstract
Senescence Marker Protein (SMP30) is a metalloenzyme that shows lactonase activity in the ascorbic acid (AA) biosynthesis pathway in non-primate mammals such as a mouse. However, AA biosynthesis does not occur in the primates including humans. Several studies have shown the role of SMP30 in maintaining calcium homeostasis in mammals. In addition, it is also reported to have promiscuous enzyme activity with an organophosphate (OP) substrate. Hence, this study aims to recombinantly express and purify the SMP30 proteins from both mouse and human, and to study their structural alterations and functional deviations in the presence of different divalent metals. For this, mouse SMP30 (MoSMP30) as well as human SMP30 (HuSMP30) were cloned in the bacterial expression vector. Proteins were overexpressed and purified from soluble fractions as well as from inclusion bodies as these proteins were expressed largely in insoluble fractions. The purified proteins were used to study the folding conformations in the presence of different divalent cations (Ca2+, Co2+, Mg2+, and Zn2+) with the help of circular dichroism (CD) spectroscopy. It was observed that both MoSMP30 and HuSMP30 acquired native folding conformations. To study the metal-binding affinity, dissociation constant (Kd values) were calculated from UV-VIS titration curve, which showed the highest affinity of MoSMP30 with Zn2+. However, HuSMP30 showed the highest affinity with Ca2+, suggesting the importance of HuSMP30 in maintaining calcium homeostasis. Enzyme kinetics were performed with γ-Thiobutyrolactone and Demeton-S in the presence of different divalent cations. Interestingly, both the proteins showed lactonase activity in the presence of Ca2+. In addition, MoSMP30 and HuSMP30 also showed lactonase activity in the presence of Co2+ and Zn2+ respectively. Moreover, both the proteins showed OP hydrolase activities in the presence of Ca2+ as well as Zn2+, suggesting the metal-dependent promiscuous nature of SMP30.
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Affiliation(s)
- Roshan Kumar Dutta
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
| | - Fauzia Parween
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
| | - Md. Summon Hossain
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
| | - Nidhi Dhama
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
| | - Parmanand Pandey
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
| | - Rinkoo Devi Gupta
- Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, India
- * E-mail:
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Peng CC, Chen CY, Chen CR, Chen CJ, Shen KH, Chen KC, Peng RY. Renal Damaging Effect Elicited by Bicalutamide Therapy Uncovered Multiple Action Mechanisms As Evidenced by the Cell Model. Sci Rep 2019; 9:3392. [PMID: 30833616 PMCID: PMC6399217 DOI: 10.1038/s41598-019-39533-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 10/16/2018] [Indexed: 02/05/2023] Open
Abstract
Bicalutamide (Bic) is frequently used in androgen deprivation therapy (ADT) for treating prostate cancer. ADT-induced hypogonadism was reported to have the potential to lead to acute kidney injury (AKI). ADT was also shown to induce bladder fibrosis via induction of the transforming growth factor (TGF)-β level. We hypothesized that Bic can likely induce renal fibrosis. To understand this, a cell model was used to explore expressions of relevant profibrotic proteins. Results indicated that Bic initiated multiple apoptotic and fibrotic pathways, including androgen deprivation, downregulation of the androgen receptor → phosphatidylinositol-3-kinase → Akt pathway, upregulation of the extrinsic apoptotic pathway- tumor necrosis factor α → nuclear factor κB → caspase-3, increased expressions of fibrosis-related proteins including platelet-derived growth factor β, fibronectin and collagen IV, and enhanced cell migration. The endoplasmic reticular stress pathway and smooth muscle actin were unaffected by Bic. Co-treatment with testosterone was shown to have an anti-apoptotic effect against Bic, suggesting a better outcome of Bic therapy if administered with an appropriate testosterone intervention. However, since Bic was found to inhibit the membrane transport and consumption rates of testosterone, a slightly larger dose of testosterone is recommended. In conclusion, these pathways can be considered to be pharmaceutically relevant targets for drug development in treating the adverse effects of Bic.
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Affiliation(s)
- Chiung Chi Peng
- Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
| | - Chang-Yu Chen
- Wayland Academy, 101 North University Avenue, Beaver Dam, WI, 53916, USA
| | - Chang-Rong Chen
- International Medical Doctor Program, The Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milano, Italy
| | - Chang-Jui Chen
- Wayland Academy, 101 North University Avenue, Beaver Dam, WI, 53916, USA
| | - Kun-Hung Shen
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan, 710, Taiwan.,Department of Optometry, College of Medicine and Life Science, Chung Hwa University of Medical Technology, Tainan, 717, Taiwan
| | - Kuan-Chou Chen
- Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan. .,Department of Urology, Taipei Medical University Shuang-Ho Hospital, 291, Zhong-Zheng Rd., Zhong-He, Taipei, 23561, Taiwan. .,Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Shing St., Taipei, 11031, Taiwan.
| | - Robert Y Peng
- Research Institute of Biotechnology, School of Medicine and Nursing, Hungkuang University, No.1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung City, 43302, Taiwan
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Chen X, Li SM, Li YW, Han ZH, Liang H. Effect of senescence marker protein 30 on the proliferation and apoptosis of human lens epithelial cells SRA01/04. Int J Ophthalmol 2018; 11:553-558. [PMID: 29675370 DOI: 10.18240/ijo.2018.04.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 03/01/2018] [Indexed: 11/23/2022] Open
Abstract
AIM To study the effect of senescence marker protein 30 (SMP30) on the proliferation and apoptosis of human lens epithelial cell (HLEC) SRA01/04. METHODS SMP30 overexpression (OE) and knock down (KD) type cell lines were cultivated by using two groups regucalcin (RGN; SMP30) lentiviral vectors (LV-RGN, LV-RGN-RNAi) and the respective negative control virus infect SRA01/04 cells. Western blot and real-time quantitative polymerase chain reaction (q-PCR) analysis were used to determine RGN overexpression and knock down efficiency. We use cell counting kit-8 (CCK8) assay to measure cell viability and 5-bromodeoxyuridine (BrdU) assay to test cell proliferation. Cell cycle was measured by PI FACS assay and cell apoptosis was tested by Annexin V-APC assay through flow cytometry. We use Western blot to measure the content of caspase-3 in SRA01/04. RESULTS We used PCR and Western blot techniques to determine the successful transfection of SMP30 OE and KD SRA01/04 cell lines. By CCK8, Brdu and PI FACS cell cycle assay, it was found that the SMP30 OE group promoted cell proliferation (P<0.05) compared with the control group, and the KD group inhibited cell proliferation (P<0.05). The results of Annexin V-APC signal staining detection indicated that compared with respective control group, the cell apoptosis rate was higher in KD group (P<0.05) but lower in OE group (P<0.01). The expression of caspase-3 was down-regulated in OE group through Western blot assay and up-regulated in KD group compared with respective control group. CONCLUSION Proliferation of SRA01/04 was promoted by SMP30 OE and apoptosis was suppressed. Increasing the expression of SMP30 may protect HLEC SRA01/04 against apoptosis in cataract.
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Affiliation(s)
- Xi Chen
- Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Song-Man Li
- Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Yan-Wei Li
- Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Zi-Hao Han
- Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Hao Liang
- Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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10
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Khalil R, Kim NR, Jardi F, Vanderschueren D, Claessens F, Decallonne B. Sex steroids and the kidney: role in renal calcium and phosphate handling. Mol Cell Endocrinol 2018; 465:61-72. [PMID: 29155307 DOI: 10.1016/j.mce.2017.11.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 12/16/2022]
Abstract
Calcium and phosphate are vital for the organism and constitute essential components of the skeleton. Serum levels are tightly hormonally regulated and maintained by exchange with three major sources: the intestines, the kidney and the bone. The effects of sex steroids on the bone have been extensively studied and it is well known that sex steroid deficiency induces bone loss, indirectly influencing renal calcium and phosphate homeostasis. However, it is unknown whether sex steroids also directly regulate renal calcium and phosphate handling, hereby potentially indirectly impacting on bone. The presence of androgen receptors (AR) and estrogen receptors (ER) in both human and rodent kidney, although their exact localization within the kidney remains debated, supports direct effects. Estrogens stimulate renal calcium reabsorption as well as phosphate excretion, while the effects of androgens are less clear. Many of the studies performed with regard to renal calcium and/or phosphate homeostasis do not correct for the calcium and phosphate fluxes from the bone and intestines, which complicates the differentiation between the direct effects of sex steroids on renal calcium and phosphate handling and the indirect effects via the bone and intestines. The objective of this study is to review the literature and current insight of the role of sex steroids in calcium and phosphate handling in the kidney.
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Affiliation(s)
- Rougin Khalil
- Clinical and Experimental Endocrinology, KU Leuven, Herestraat 49 Box 902, Belgium.
| | - Na Ri Kim
- Clinical and Experimental Endocrinology, KU Leuven, Herestraat 49 Box 902, Belgium
| | - Ferran Jardi
- Clinical and Experimental Endocrinology, KU Leuven, Herestraat 49 Box 902, Belgium
| | - Dirk Vanderschueren
- Clinical and Experimental Endocrinology, KU Leuven, Herestraat 49 Box 902, Belgium
| | - Frank Claessens
- Molecular Endocrinology, KU Leuven, Herestraat 49 Box 901, Belgium
| | - Brigitte Decallonne
- Clinical and Experimental Endocrinology, KU Leuven, Herestraat 49 Box 902, Belgium
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