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Zhang S, Huang F, Tian W, Lai J, Qian L, Hong W, Chen H, Li LC. Andrographolide promotes pancreatic duct cells differentiation into insulin-producing cells by targeting PDX-1. Biochem Pharmacol 2019; 174:113785. [PMID: 31887289 DOI: 10.1016/j.bcp.2019.113785] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/23/2019] [Indexed: 01/08/2023]
Abstract
Regeneration of β-cells by differentiation of pancreatic progenitor cells has the potential to fundamentally solve the problems of the loss of β-cell function and mass during disease progression in both type 1 or 2 diabetes. Therefore, discovery of novel differentiation inducers to promote islet regeneration is of great significance. Pancreatic and duodenal homeobox1 (PDX-1) is a key transcription factor that promotes the development and maturation of pancreatic β-cells. To screen potential novel small molecules for enhancing differentiation of PNAC-1 cells, a human pancreatic ductal cell lines into insulin-producing cells (IPCs), we developed a high-throughput screening method through fusing the PDX-1 promoter region with a luciferase reporter gene. We screened and identified that andrographolide named C1037 stimulates PDX-1 expression in both mRNA and protein level and significantly promotes PANC-1 cells differentiation into IPCs as compared with that of control cells. The therapeutic effect of C037 in Streptozotocin induced diabetic mouse model through differentiation of pancreatic ductal cells into insulin positive islets was also observed. Our study provides a novel method to screen compounds regulating the differentiation of pancreatic progenitor cells having the potential of enhancing islet regeneration for diabetes therapy.
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Affiliation(s)
- Shengmei Zhang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Feirong Huang
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Wenjin Tian
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Jiashuang Lai
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Lixia Qian
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Wanjin Hong
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - Haifeng Chen
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
| | - Liang-Cheng Li
- State Key Laboratory of Cellular Stress Biology, Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China.
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Altered expression of PGC-1α and PDX1 and their methylation status are associated with fetal glucose metabolism in gestational diabetes mellitus. Biochem Biophys Res Commun 2018; 501:300-306. [PMID: 29730292 DOI: 10.1016/j.bbrc.2018.05.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 11/23/2022]
Abstract
PURPOSE To investigate the effect of gestational diabetes mellitus (GDM) on the expression and methylation of PGC-1α and PDX1 in placenta and their effects on fetal glucose metabolism. METHODS 20 cases of full-term placenta without pregnancy complications and umbilical cord abnormalities and 20 cases of GDM group were collected. DNA and RNA were isolated from samples of tissue collected from the fetal side of the placenta immediately after delivery. DNA methylation was quantified at 7 CpG sites within the PGC-1α and PDX1 genes using PCR amplification of bisulfite treated DNA and subsequent DNA sequencing. PGC-1α and PDX1 mRNA levels were measured by reverse transcription-quantitative PCR (RT-qPCR). Meanwhile, the placental insulin, blood glucose and HbA1c levels were determined. RESULTS The fetus birth weight and placental weight in GDM group were significantly higher than those in control group (P < 0.05). Insulin, HbA1c and blood glucose levels in GDM group were significantly higher than those in control group (P < 0.01). Insulin content was positively correlated with newborn birth weight and placental weight while HbA1c and blood glucose were positively correlated with insulin concentration (r = 0.92, P < 0.01, r = 0.85, P < 0.01). The levels of PGC-1α and PDX1 mRNA were lower in the GDM group compared to the control group. The methylation level of PGC-1α gene was higher in the GDM group compared to the control group (P < 0.05). Blood glucose was negatively correlated with the expression of PGC-1α and PDX1 mRNA in the placenta (r = -0.42, P < 0.01, r = -0.49, P < 0.01). CONCLUSION The changes of epigenetic modification of PGC-1α gene in pregnant women with gestational diabetes mellitus may be a mechanism of abnormal glucose metabolism in offspring.
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Lin HP, Chan TM, Fu RH, Chuu CP, Chiu SC, Tseng YH, Liu SP, Lai KC, Shih MC, Lin ZS, Chen HS, Yeh DC, Lin SZ. Applicability of Adipose-Derived Stem Cells in Type 1 Diabetes Mellitus. Cell Transplant 2015; 24:521-32. [PMID: 25621468 DOI: 10.3727/096368915x686977] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Type 1 diabetes mellitus (T1DM) is a form of early onset diabetes mellitus characterized by the autoimmune destruction of insulin-producing cells (IPCs), resulting in hyperglycemia and abnormal glucose metabolism. There are currently no treatments available capable of completely curing the symptoms associated with the loss or functional defects of IPCs. Nonetheless, stem cell therapy has demonstrated considerable promise in the replacement of IPCs with immunomodulatory functions to overcome the defects caused by T1DM. Adipose-derived stem cells (ADSCs) are particularly suitable for use in cell transplantation therapy, especially when seeking to avoid the ethical issues and tumorigenic complications commonly associated with embryos or induced pluripotent stem cells. Cell-based treatments have demonstrated therapeutic advantages and clinical applicability of ADSCs in T1DM, ensuring their suitability for transplantation therapy. This manuscript focuses on the benefits and possible mechanisms in a T1DM-relevant model and displays positive results from finished or ongoing human clinical trials. We also discuss and hypothesize potential methods to further enhance the therapeutic efficacy of these efforts, such as a humanized rodent model and gene therapies for IPC clusters, to meet the clinical applicability of the standard.
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Affiliation(s)
- Hui-Ping Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Tzu-Min Chan
- Department of Medical Education and Research, China Medical University Beigan Hospital, Yunlin, Taiwan
- Department of Medical Education and Research, China Medical University-An-Nan Hospital, Tainan, Taiwan
| | - Ru-Huei Fu
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Shao-Chih Chiu
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan
| | - Yu-Hsiung Tseng
- Department of Nephrology, China Medical University Beigan Hospital, Yunlin, Taiwan
| | - Shih-Ping Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Social Work, Asia University, Taichung, Taiwan
| | - Kuang-Chi Lai
- Department of Surgery, China Medical University Beigan Hospital, Yunlin, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
| | - Mu-Chin Shih
- Department of Clinical Laboratory, China Medical University-An-Nan Hospital, Tainan, Taiwan
| | - Zung-Sheng Lin
- Department of Surgery, China Medical University Beigan Hospital, Yunlin, Taiwan
| | - Hsin-Shui Chen
- School of Medicine, China Medical University, Taichung, Taiwan
- Department of Physical Medicine and Rehabilitation, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Da-Chuan Yeh
- Department of Internal Medicine, China Medical University Beigan Hospital, Yunlin, Taiwan
| | - Shinn-Zong Lin
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Immunology, China Medical University, Taichung, Taiwan
- Department of Neurosurgery, China Medical University Beigan Hospital, Yunlin, Taiwan
- Department of Neurosurgery, China Medical University-An-Nan Hospital, Tainan, Taiwan
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Cerf ME. Beta cell dynamics: beta cell replenishment, beta cell compensation and diabetes. Endocrine 2013; 44:303-11. [PMID: 23483434 DOI: 10.1007/s12020-013-9917-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 03/01/2013] [Indexed: 12/19/2022]
Abstract
Type 2 diabetes, characterized by persistent hyperglycemia, arises mostly from beta cell dysfunction and insulin resistance and remains a highly complex metabolic disease due to various stages in its pathogenesis. Glucose homeostasis is primarily regulated by insulin secretion from the beta cells in response to prevailing glycemia. Beta cell populations are dynamic as they respond to fluctuating insulin demand. Beta cell replenishment and death primarily regulate beta cell populations. Beta cells, pancreatic cells, and extra-pancreatic cells represent the three tiers for replenishing beta cells. In rodents, beta cell self-replenishment appears to be the dominant source for new beta cells supported by pancreatic cells (non-beta islet cells, acinar cells, and duct cells) and extra-pancreatic cells (liver, neural, and stem/progenitor cells). In humans, beta cell neogenesis from non-beta cells appears to be the dominant source of beta cell replenishment as limited beta cell self-replenishment occurs particularly in adulthood. Metabolic states of increased insulin demand trigger increased insulin synthesis and secretion from beta cells. Beta cells, therefore, adapt to support their physiology. Maintaining physiological beta cell populations is a strategy for targeting metabolic states of persistently increased insulin demand as in diabetes.
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Affiliation(s)
- Marlon E Cerf
- Diabetes Discovery Platform, South African Medical Research, PO Box 19070, Tygerberg, 7505, South Africa,
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