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Xiang Y, Fan D, An Q, Zhang T, Wu X, Ding J, Xu X, Yue G, Tang S, Du Q, Xu J, Xie R. Effects of Ion-Transporting Proteins on the Digestive System Under Hypoxia. Front Physiol 2022; 13:870243. [PMID: 36187789 PMCID: PMC9515906 DOI: 10.3389/fphys.2022.870243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Hypoxia refers to a state of oxygen limitation, which mainly mediates pathological processes in the human body and participates in the regulation of normal physiological processes. In the hypoxic environment, the main regulator of human body homeostasis is the hypoxia-inducible factor family (HIF). HIF can regulate the expression of many hypoxia-induced genes and then participate in various physiological and pathological processes of the human body. Ion-transporting proteins are extremely important types of proteins. Ion-transporting proteins are distributed on cell membranes or organelles and strictly control the inflow or outflow of ions in cells or organelles. Changes in ions in cells are often closely related to extensive physiological and pathological processes in the human body. Numerous studies have confirmed that hypoxia and its regulatory factors can regulate the transcription and expression of ion-transporting protein-related genes. Under hypoxic stress, the regulation and interaction of ion-transporting proteins by hypoxia often leads to diseases of various human systems and even tumors. Using ion-transporting proteins and hypoxia as targets to explore the mechanism of digestive system diseases and targeted therapy is expected to become a new breakthrough point.
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Affiliation(s)
- Yiwei Xiang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Dongdong Fan
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Qimin An
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Ting Zhang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Xianli Wu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Jianhong Ding
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Xiaolin Xu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Gengyu Yue
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Siqi Tang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Qian Du
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
| | - Jingyu Xu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
- *Correspondence: Jingyu Xu, ; Rui Xie,
| | - Rui Xie
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi, China
- *Correspondence: Jingyu Xu, ; Rui Xie,
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Kim MJ, Hwang YH, Hwang JW, Alam Z, Lee DY. Heme oxygenase-1 gene delivery for altering high mobility group box-1 protein in pancreatic islet. J Control Release 2022; 343:326-337. [PMID: 35085698 DOI: 10.1016/j.jconrel.2022.01.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 10/19/2022]
Abstract
Pancreatic islet transplantation is a promising strategy for the treatment of type I diabetes. High-mobility group box-1 (HMGB1), highly expressed in islet cells, is a potent immune stimulator in immune rejection. Heme oxygenase-1 (HO1) gene therapy can modulate the release of HMGB1 by altering intracellular molecules for successful cell transplantation. After delivery of the heme oxygenase-1 (HO1) gene to islet cells using an adeno-associated viral vector (AAV), it was evaluated the changes in cytoplasmic Ca2+ ions and calcineurin activity as well as histone acetyltransferase (HAT) and Poly(ADP) ribose polymerase-1 (PARP-1). Inhibition of HMGB1 release was evaluated through altering these intracellular molecules. Then, after transplantation of HO1-transduced islets, the therapeutic effect of them was evaluated through measuring blood glucose level to diabetic mice and through immunohistochemical analysis. The transduced HO1 gene significantly inhibited HMGB1 release in islets that was under the cell damage by hypoxia exposure. It was confirmed that this result was initially due to the decrease in cytoplasmic Ca2+ ion concentration and calcineurin activity. In addition, the delivered HO1 gene simultaneously reduced the activity of HAT and PARP-1, which are involved in the translocation of HMGB1 from the nucleus to the cytoplasm. As a result, when the HO1 gene-transduced islets were transplanted into diabetic mice, the treatment efficiency of diabetes was effectively improved by increasing the survival rate of the islets. Collectively, these results suggest that HO1 gene transfer can be used for successful islet transplantation by altering the activity of intracellular signal molecules and reducing HMGB1 release.
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Affiliation(s)
- Min Jun Kim
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul 04763, Republic of Korea
| | - Yong Hwa Hwang
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul 04763, Republic of Korea
| | - Jin Wook Hwang
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul 04763, Republic of Korea
| | - Zahid Alam
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul 04763, Republic of Korea
| | - Dong Yun Lee
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul 04763, Republic of Korea; Institute of Nano Science & Technology (INST), Hanyang University, Seoul 04763, Republic of Korea; Elixir Pharmatech Inc., Seoul 04763, Republic of Korea.
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3
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Chung H, Nam H, Nguyen-Phuong T, Jang J, Hong SJ, Choi SW, Park SB, Park CG. The blockade of cytoplasmic HMGB1 modulates the autophagy/apoptosis checkpoint in stressed islet beta cells. Biochem Biophys Res Commun 2021; 534:1053-1058. [PMID: 33160622 DOI: 10.1016/j.bbrc.2020.10.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 10/14/2020] [Indexed: 01/07/2023]
Abstract
High mobility group (HMGB1) is an alarmin known to be harmful to pancreatic beta cells and associated with diabetes mellitus pathogenesis and pancreatic islet graft failure. It has been long thought that the suppression of HMGB1 molecule is beneficial to the beta cells. However, recent studies have indicated that cytoplasmic HMGB1 (cHMGB1) could function as a modulator to relieve cells from apoptotic stress by autophagy induction. Particularly, pancreatic beta cells have been known to utilize the autophagy-to-apoptosis switch when exposed to hypoxia or lipotoxicity. This study aimed to investigate the beta cells under hypoxic and lipotoxic stress while utilizing a small molecule inhibitor of HMGB1, inflachromene (ICM) which can suppress cHMGB1 accumulation. It was revealed that under cellular stress, blockade of cHMGB1 accumulation decreased the viability of islet grafts, primary islets and MIN6 cells. MIN6 cells under cHMGB1 blockade along with lipotoxic stress showed decreased autophagic flux and increased apoptosis. Moreover, cHMGB1 blockade in HFD-fed mice produced unfavorable outcomes on their glucose tolerance. In sum, these results suggested the role of cHMGB1 within beta cell autophagy/apoptosis checkpoint. Given the importance of autophagy in beta cells under apoptotic stresses, this study might provide further insights regarding HMGB1 and diabetes.
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Affiliation(s)
- Hyunwoo Chung
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Hyunsung Nam
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Thuy Nguyen-Phuong
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jiyun Jang
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Sung Ji Hong
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - So Won Choi
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Seung Bum Park
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Chung-Gyu Park
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Biomedical Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
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Nagata A, Tagashira H, Kita S, Kita T, Nakajima N, Abe K, Iwasaki A, Iwamoto T. Genetic knockout and pharmacologic inhibition of NCX1 attenuate hypoxia-induced pulmonary arterial hypertension. Biochem Biophys Res Commun 2020; 529:793-798. [PMID: 32736709 DOI: 10.1016/j.bbrc.2020.06.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/10/2020] [Indexed: 11/30/2022]
Abstract
The Na+/Ca2+ exchanger type-1 (NCX1) is a bidirectional transporter that is controlled by membrane potential and transmembrane gradients of Na+ and Ca2+. Vascular smooth muscle NCX1 plays an important role in intracellular Ca2+ homeostasis and Ca2+ signaling. We found that NCX1 was upregulated in the pulmonary arteries of mice exposed to chronic hypoxia (10% O2 for 4 weeks). Hence, we investigated the pathophysiological role of NCX1 in hypoxia-induced pulmonary arterial hypertension (PAH), using NCX1-heterozygous (NCX1+/-) mice, in which NCX1 expression is reduced by half, and SEA0400, a specific NCX1 inhibitor. NCX1+/- mice exhibited attenuation of hypoxia-induced PAH and right ventricular (RV) hypertrophy compared with wild-type mice. Furthermore, continuous administration of SEA0400 (0.5 mg/kg/day for 4 weeks) to wild-type mice by osmotic pumps significantly suppressed hypoxia-induced PAH and pulmonary vessel muscularization, with a slight reduction in RV hypertrophy. These findings indicate that the upregulation of NCX1 contributes to the development of hypoxia-induced PAH, suggesting that NCX1 inhibition might be a novel approach for the treatment of PAH.
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Affiliation(s)
- Asahi Nagata
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan; Department of General Thoracic, Breast and Pediatric Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hideaki Tagashira
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Satomi Kita
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan; Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan.
| | - Tomo Kita
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Naoko Nakajima
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Kohtaro Abe
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akinori Iwasaki
- Department of General Thoracic, Breast and Pediatric Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Takahiro Iwamoto
- Department of Pharmacology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
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Chung H, Hong SJ, Choi SW, Koo JY, Kim M, Kim HJ, Park SB, Park CG. High mobility group box 1 secretion blockade results in the reduction of early pancreatic islet graft loss. Biochem Biophys Res Commun 2019; 514:1081-1086. [DOI: 10.1016/j.bbrc.2019.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/01/2019] [Indexed: 02/01/2023]
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Papin J, Zummo FP, Pachera N, Guay C, Regazzi R, Cardozo AK, Herchuelz A. Na +/Ca 2+ Exchanger a Druggable Target to Promote β-Cell Proliferation and Function. J Endocr Soc 2018; 2:631-645. [PMID: 29942927 PMCID: PMC6009611 DOI: 10.1210/js.2017-00370] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 05/22/2018] [Indexed: 12/19/2022] Open
Abstract
An important feature of type 2 diabetes is a decrease in β-cell mass. Therefore, it is essential to find new approaches to stimulate β-cell proliferation. We have previously shown that heterozygous inactivation of the Na+/Ca2+ exchanger (isoform 1; NCX1), a protein responsible for Ca2+ extrusion from cells, increases β-cell proliferation, mass, and function in mice. Here, we show that Ncx1 inactivation also increases β-cell proliferation in 2-year-old mice and that NCX1 inhibition in adult mice by four small molecules of the benzoxyphenyl family stimulates β-cell proliferation both in vitro and in vivo. NCX1 inhibition by small interfering RNA or small molecules activates the calcineurin/nuclear factor of activated T cells (NFAT) pathway and inhibits apoptosis induced by the immunosuppressors cyclosporine A (CsA) and tacrolimus in insulin-producing cell. Moreover, NCX1 inhibition increases the expression of β-cell-specific genes, such as Ins1, Ins2, and Pdx1, and inactivates/downregulates the tumor suppressors retinoblastoma protein (pRb) and miR-193a and the cell cycle inhibitor p53. Our data show that Na+/Ca2+ exchange is a druggable target to stimulate β-cell function and proliferation. Specific β-cell inhibition of Na+/Ca2+ exchange by phenoxybenzamyl derivatives may represent an innovative approach to promote β-cell regeneration in diabetes and improve the efficiency of pancreatic islet transplantation for the treatment of the disease.
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Affiliation(s)
- Julien Papin
- Laboratory of Pharmacology, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
| | - Francesco Paolo Zummo
- Laboratory of Pharmacology, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
| | - Nathalie Pachera
- Laboratory of Pharmacology, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
- ULB Center for Diabetes Research, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
| | - Claudiane Guay
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
| | - Romano Regazzi
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
| | - Alessandra K Cardozo
- ULB Center for Diabetes Research, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
| | - André Herchuelz
- Laboratory of Pharmacology, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
- ULB Center for Diabetes Research, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
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Vasques ER, Cunha JEM, Kubrusly MS, Coelho AM, Sanpietri SN, Nader HB, Tersariol ILS, Lima MA, Chaib E, D'Albuquerque LAC. THE M-RNA, EXPRESSION OF SERCA2 AND NCX1 IN THE PROCESS OF PHARMACOLOGICAL CELL PROTECTION IN EXPERIMENTAL ACUTE PANCREATITIS INDUCED BY TAUROCHOLATE. ACTA ACUST UNITED AC 2018; 31:e1352. [PMID: 29947686 PMCID: PMC6049993 DOI: 10.1590/0102-672020180001e1352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 01/30/2018] [Indexed: 12/14/2022]
Abstract
Background: Intracellular calcium overload is known to be a precipitating factor of pancreatic cell injury in acute pancreatitis (AP). Intracellular calcium homeostasis depends of Plasmatic Membrane Calcium ATPase (PMCA), Sarcoplasmic Endothelial Reticulum Calcium ATPase 2 (SERCA 2) and the Sodium Calcium Exchanger (NCX1). The antioxidant melatonin (Mel) and Trisulfate Disaccharide (TD) that accelerates NCX1 action could reduce the cell damage determined by the AP. Aim: To evaluate m-RNA expressions of SERCA2 and NCX1 in acute pancreatitis induced by sodium taurocholate in Wistar rats pre-treated with melatonin and/or TD. Methods: Wistar rats were divided in groups: 1) without AP; 2) AP without pre-treatment; 3) AP and Melatonin; 4) AP and TD; 5) AP and Melatonin associated to TD. Pancreatic tissue samples were collected for detection of SERCA2 and NCX1 m-R NA levels by polymerase chain reaction (PCR). Results: Increased m-RNA expression of SERCA2 in the melatonin treated group, without increase of m-RNA expression of the NCX1. The TD did not affect levels of SERCA2 and NCX1 m-RNA expressions. The combined melatonin and TD treatment reduced the m-RNA expression of SERCA2. Conclusions: The effect of melatonin is restricted to increased m-RNA expression of SERCA2. Although TD does not affect gene expression, its action in accelerating calcium exchanger function can explain the slightest expression of SERCA2 m-RNA when associated with Melatonin, perhaps by a joint action of drugs with different and but possibly complementary mechanisms.
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Affiliation(s)
| | | | | | - Ana Maria Coelho
- Gastroenterology Department LIM 37, University of São Paulo Medical School
| | - Sandra N Sanpietri
- Gastroenterology Department LIM 37, University of São Paulo Medical School
| | - Helena B Nader
- Pharmacology Department of Federal University of São Paulo, São Paulo, SP, Brazil
| | - Ivarne L S Tersariol
- Pharmacology Department of Federal University of São Paulo, São Paulo, SP, Brazil
| | - Marcelo A Lima
- Pharmacology Department of Federal University of São Paulo, São Paulo, SP, Brazil
| | - Eleazar Chaib
- Gastroenterology Department LIM 37, University of São Paulo Medical School
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Chen C, Ma X, Yang C, Nie W, Zhang J, Li H, Rong P, Yi S, Wang W. Hypoxia potentiates LPS-induced inflammatory response and increases cell death by promoting NLRP3 inflammasome activation in pancreatic β cells. Biochem Biophys Res Commun 2017; 495:2512-2518. [PMID: 29278702 DOI: 10.1016/j.bbrc.2017.12.134] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/12/2022]
Abstract
Hypoxia and islet inflammation are involved in β-cell failure in type 2 diabetes (T2D). Elevated plasma LPS levels have been verified in patients with T2D, and hypoxia occurs in islets of diabetic mice. Activation of inflammasomes in ischemic or hypoxic conditions was identified in various tissues. Here, we investigated whether hypoxia activates the inflammasome in β cells and the possible mechanisms involved. In mouse insulinoma cell line 6 (MIN6), hypoxia (1% O2) primes the NLRP3 inflammasome along with NF-κB signaling activation. Our results demonstrate that hypoxia can activate the NLRP3 inflammasome in LPS-primed MIN6 to result in initiating the β cell inflammatory response and cell death in vitro. Reactive oxygen species (ROS) and the thioredoxin-interacting protein (TXNIP) are up-regulated in response to hypoxia. Finally, the role of the ROS-TXNIP axis in mediating the activation of the NLRP3 inflammasome and cell death was characterized by pretreating with the ROS scavenger N-acetylcysteine (NAC) and performing TXNIP knockdown experiments in MIN6. Our data indicate for the first time that the inflammasome is involved in the inflammatory response and cell death in hypoxia-induced β cells through the ROS-TXNIP-NLRP3 axis in vitro. This provides new insight into the relationship between hypoxia and inflammation in T2D.
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Affiliation(s)
- Cheng Chen
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaoqian Ma
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Cejun Yang
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wei Nie
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Juan Zhang
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hongde Li
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Pengfei Rong
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Shounan Yi
- Center for Transplant and Renal Research, Westmead Institute for Medical Research, University of Sydney, Westmead, NSW, Australia
| | - Wei Wang
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China; Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.
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Cooper DK, Matsumoto S, Abalovich A, Itoh T, Mourad NI, Gianello PR, Wolf E, Cozzi E. Progress in Clinical Encapsulated Islet Xenotransplantation. Transplantation 2016; 100:2301-2308. [PMID: 27482959 PMCID: PMC5077652 DOI: 10.1097/tp.0000000000001371] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
At the 2015 combined congress of the Cell Transplant Society, International Pancreas and Islet Transplant Association, and International Xenotransplantation Association, a symposium was held to discuss recent progress in pig islet xenotransplantation. The presentations focused on 5 major topics - (1) the results of 2 recent clinical trials of encapsulated pig islet transplantation, (2) the inflammatory response to encapsulated pig islets, (3) methods to improve the secretion of insulin by pig islets, (4) genetic modifications to the islet-source pigs aimed to protect the islets from the primate immune and/or inflammatory responses, and (5) regulatory aspects of clinical pig islet xenotransplantation. Trials of microencapsulated porcine islet transplantation to treat unstable type 1 diabetic patients have been associated with encouraging preliminary results. Further advances to improve efficacy may include (1) transplantation into a site other than the peritoneal cavity, which might result in better access to blood, oxygen, and nutrients; (2) the development of a more biocompatible capsule and/or the minimization of a foreign body reaction; (3) pig genetic modification to induce a greater secretion of insulin by the islets, and/or to reduce the immune response to islets released from damaged capsules; and (4) reduction of the inflammatory response to the capsules/islets by improvements in the structure of the capsules and/or in genetic engineering of the pigs and/or in some form of drug therapy. Ethical and regulatory frameworks for islet xenotransplantation are already available in several countries, and there is now a wider international perception of the importance of developing an internationally harmonized ethical and regulatory framework.
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Affiliation(s)
- David K.C. Cooper
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shinichi Matsumoto
- Otsuka Pharmaceutical Factory, Tateiwa, Muya-cho, Naruto Tokushima, Japan
| | | | - Takeshi Itoh
- Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka City, Fukuoka, Japan
| | - Nizar I. Mourad
- Laboratory of Surgery and Transplantation, Catholic University of Louvain, Brussels, Belgium
| | - Pierre R Gianello
- Laboratory of Surgery and Transplantation, Catholic University of Louvain, Brussels, Belgium
| | - Eckhard Wolf
- Gene Center, LMU Munich and German Center for Diabetes Research (DZD), Munich, Germany
| | - Emanuele Cozzi
- Transplantation Immunology Unit, Padua University Hospital, and the Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
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Itoh T, Hata Y, Nishinakamura H, Kumano K, Takahashi H, Kodama S. Islet-derived damage-associated molecular pattern molecule contributes to immune responses following microencapsulated neonatal porcine islet xenotransplantation in mice. Xenotransplantation 2016; 23:393-404. [DOI: 10.1111/xen.12253] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 06/29/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Takeshi Itoh
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
- Center for Regenerative Medicine; Fukuoka University Hospital; Fukuoka Japan
| | - Yuko Hata
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
| | - Hitomi Nishinakamura
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
- Department of Pharmacology; Faculty of Medicine; Fukuoka University; Fukuoka Japan
| | - Kenjiro Kumano
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
- Department of Gastroenterological Surgery; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - Hiroyuki Takahashi
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
- Center for Regenerative Medicine; Fukuoka University Hospital; Fukuoka Japan
- Department of Gastroenterological Surgery; Faculty of Medicine; Fukuoka University; Fukuoka Japan
| | - Shohta Kodama
- Department of Regenerative Medicine & Transplantation; Faculty of Medicine; Fukuoka University; Fukuoka Japan
- Center for Regenerative Medicine; Fukuoka University Hospital; Fukuoka Japan
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Omori K, Kobayashi E, Komatsu H, Rawson J, Agrawal G, Parimi M, Oancea AR, Valiente L, Ferreri K, Al-Abdullah IH, Kandeel F, Takahashi M, Mullen Y. Involvement of a proapoptotic gene (BBC3) in islet injury mediated by cold preservation and rewarming. Am J Physiol Endocrinol Metab 2016; 310:E1016-26. [PMID: 27117005 PMCID: PMC4935146 DOI: 10.1152/ajpendo.00441.2015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 03/31/2016] [Indexed: 12/23/2022]
Abstract
Long-term pancreatic cold ischemia contributes to decreased islet number and viability after isolation and culture, leading to poor islet transplantation outcome in patients with type 1 diabetes. In this study, we examined mechanisms of pancreatic cold preservation and rewarming-induced injury by interrogating the proapoptotic gene BBC3/Bbc3, also known as Puma (p53 upregulated modulator of apoptosis), using three experimental models: 1) bioluminescence imaging of isolated luciferase-transgenic ("Firefly") Lewis rat islets, 2) cold preservation of en bloc-harvested pancreata from Bbc3-knockout (KO) mice, and 3) cold preservation and rewarming of human pancreata and isolated islets. Cold preservation-mediated islet injury occurred during rewarming in "Firefly" islets. Silencing Bbc3 by transfecting Bbc3 siRNA into islets in vitro prior to cold preservation improved postpreservation mitochondrial viability. Cold preservation resulted in decreased postisolation islet yield in both wild-type and Bbc3 KO pancreata. However, after culture, the islet viability was significantly higher in Bbc3-KO islets, suggesting that different mechanisms are involved in islet damage/loss during isolation and culture. Furthermore, Bbc3-KO islets from cold-preserved pancreata showed reduced HMGB1 (high-mobility group box 1 protein) expression and decreased levels of 4-hydroxynonenal (4-HNE) protein adducts, which was indicative of reduced oxidative stress. During human islet isolation, BBC3 protein was upregulated in digested tissue from cold-preserved pancreata. Hypoxia in cold preservation increased BBC3 mRNA and protein in isolated human islets after rewarming in culture and reduced islet viability. These results demonstrated the involvement of BBC3/Bbc3 in cold preservation/rewarming-mediated islet injury, possibly through modulating HMGB1- and oxidative stress-mediated injury to islets.
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Affiliation(s)
- Keiko Omori
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California;
| | - Eiji Kobayashi
- Center for Development of Advanced Medical Technology and Department of Organ Fabrication, Keio University School of Medicine, Tokyo, Japan
| | - Hirotake Komatsu
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Jeffrey Rawson
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Garima Agrawal
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Mounika Parimi
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Alina R Oancea
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Luis Valiente
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Kevin Ferreri
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Ismail H Al-Abdullah
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Fouad Kandeel
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan; and
| | - Yoko Mullen
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of the City of Hope, Duarte, California
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12
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Wang Y, Zhong J, Zhang X, Liu Z, Yang Y, Gong Q, Ren B. The Role of HMGB1 in the Pathogenesis of Type 2 Diabetes. J Diabetes Res 2016; 2016:2543268. [PMID: 28101517 PMCID: PMC5215175 DOI: 10.1155/2016/2543268] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/08/2016] [Accepted: 11/29/2016] [Indexed: 12/17/2022] Open
Abstract
Significance. With an alarming increase in recent years, diabetes mellitus has become a global challenge. Despite advances in treatment of diabetes mellitus, currently, medications available are unable to control the progression of diabetes and its complications. Growing evidence suggests that inflammation is an important pathogenic mediator in the development of diabetes mellitus. The perspectives including suggestions for new therapies involving the shift from metabolic stress to inflammation should be taken into account. Critical Issues. High-mobility group box 1 (HMGB1), a nonhistone nuclear protein regulating gene expression, was rediscovered as an endogenous danger signal molecule to trigger inflammatory responses when released into extracellular milieu in the late 1990s. Given the similarities of inflammatory response in the development of T2D, we will discuss the potential implication of HMGB1 in the pathogenesis of T2D. Importantly, we will summarize and renovate the role of HMGB1 and HMGB1-mediated inflammatory pathways in adipose tissue inflammation, insulin resistance, and islet dysfunction. Future Directions. HMGB1 and its downstream receptors RAGE and TLRs may serve as potential antidiabetic targets. Current and forthcoming projects in this territory will pave the way for prospective approaches targeting the center of HMGB1-mediated inflammation to improve T2D and its complications.
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Affiliation(s)
- Yanan Wang
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
| | - Jixin Zhong
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Xiangzhi Zhang
- Department of Medicine, Hospital of Yangtze University, Jingzhou 434000, China
| | - Ziwei Liu
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
| | - Yuan Yang
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
| | - Quan Gong
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
- *Quan Gong: and
| | - Boxu Ren
- Department of Immunology, Medical School, Yangtze University, Jingzhou 434023, China
- *Boxu Ren:
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