Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function
Identifieur interne : 000050 ( PascalFrancis/Corpus ); précédent : 000049; suivant : 000051Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function
Auteurs : CHEN WANG ; XIAOWEN LI ; KAIDA MU ; LING LI ; SHIHONG WANG ; YUNXIA ZHU ; MINGLIANG ZHANG ; JIYOON RYU ; ZHIFANG XIE ; DONGYUN SHI ; Weiping J. Zhang ; Lily Q. Dong ; WEIPING JIASource :
- Diabetologia : (Berlin) [ 0012-186X ] ; 2013.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Aims/hypothesis Adaptor protein, phosphotyrosine interaction, pleckstrin homology domain and leucine zipper containing 1 (APPL1) is an adapter protein that positively mediates adiponectin signalling. Deficiency of APPL1 in the target tissues of insulin induces insulin resistance. We therefore aimed, in the present study, to determine its role in regulating pancreatic beta cell function. Methods A hyperglycaemic clamp test was performed to determine insulin secretion in APPL1 knockout (KO) mice. Glucose- and adiponectin-induced insulin release was measured in islets from APPL1 KO mice or INS-1(832/13) cells with either APPL1 knockdown or overproduction. RT-PCR and western blotting were conducted to analyse gene expression and protein abundance. Oxygen consumption rate (OCR), ATP production and mitochondrial membrane potential were assayed to evaluate mitochondrial function. Results APPL1 is highly expressed in pancreatic islets, but its levels are decreased in mice fed a high-fat diet and db/db mice compared with controls. Deletion of the Appl1 gene leads to impairment of both the first and second phases of insulin secretion during hyperglycaemic clamp tests. In addition, glucose-stimulated insulin secretion (GSIS) is significantly decreased in islets from APPL1 KO mice. Conversely, overproduction of APPL1 leads to an increase in GSIS in beta cells. In addition, expression levels of several genes involved in insulin production, mitochondrial biogenesis and mitochondrial OCR, ATP production and mitochondrial membrane potential are reduced significantly in APPL1-knockdown beta cells. Moreover, suppression or overexproduction of APPL1 inhibits or stimulates adiponectin-potentiated GSIS in beta cells, respectively. Conclusions/interpretation Our study demonstrates the roles of APPL1 in regulating GSIS and mitochondrial function in pancreatic beta cells, which implicates APPL1 as a therapeutic target in the treatment of type 2 diabetes.
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NO : | PASCAL 13-0281139 INIST |
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ET : | Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function |
AU : | CHEN WANG; XIAOWEN LI; KAIDA MU; LING LI; SHIHONG WANG; YUNXIA ZHU; MINGLIANG ZHANG; JIYOON RYU; ZHIFANG XIE; DONGYUN SHI; ZHANG (Weiping J.); DONG (Lily Q.); WEIPING JIA |
AF : | Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road/Shanghai 200233/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut.); Diabetes Institute, Shanghai Jiao Tong University/Shanghai/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 13 aut.); Shanghai Key Laboratory of Diabetes Mellitus/Shanghai/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 13 aut.); Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive/San Antonio, TX 78229-3900/Etats-Unis (8 aut., 12 aut.); Department of Pathophysiology, Second Military Medical University/Shanghai/Chine (9 aut., 11 aut.); Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University/Shanghai/Chine (10 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Diabetologia : (Berlin); ISSN 0012-186X; Allemagne; Da. 2013; Vol. 56; No. 9; Pp. 1999-2009; Bibl. 48 ref. |
LA : | Anglais |
EA : | Aims/hypothesis Adaptor protein, phosphotyrosine interaction, pleckstrin homology domain and leucine zipper containing 1 (APPL1) is an adapter protein that positively mediates adiponectin signalling. Deficiency of APPL1 in the target tissues of insulin induces insulin resistance. We therefore aimed, in the present study, to determine its role in regulating pancreatic beta cell function. Methods A hyperglycaemic clamp test was performed to determine insulin secretion in APPL1 knockout (KO) mice. Glucose- and adiponectin-induced insulin release was measured in islets from APPL1 KO mice or INS-1(832/13) cells with either APPL1 knockdown or overproduction. RT-PCR and western blotting were conducted to analyse gene expression and protein abundance. Oxygen consumption rate (OCR), ATP production and mitochondrial membrane potential were assayed to evaluate mitochondrial function. Results APPL1 is highly expressed in pancreatic islets, but its levels are decreased in mice fed a high-fat diet and db/db mice compared with controls. Deletion of the Appl1 gene leads to impairment of both the first and second phases of insulin secretion during hyperglycaemic clamp tests. In addition, glucose-stimulated insulin secretion (GSIS) is significantly decreased in islets from APPL1 KO mice. Conversely, overproduction of APPL1 leads to an increase in GSIS in beta cells. In addition, expression levels of several genes involved in insulin production, mitochondrial biogenesis and mitochondrial OCR, ATP production and mitochondrial membrane potential are reduced significantly in APPL1-knockdown beta cells. Moreover, suppression or overexproduction of APPL1 inhibits or stimulates adiponectin-potentiated GSIS in beta cells, respectively. Conclusions/interpretation Our study demonstrates the roles of APPL1 in regulating GSIS and mitochondrial function in pancreatic beta cells, which implicates APPL1 as a therapeutic target in the treatment of type 2 diabetes. |
CC : | 002B21E01A |
FD : | Déficit; Glucose; Insuline; Sécrétion; Animal; Inhibition; Cellule β; Diabète; Mitochondrie; Adiponectine; Souris |
FG : | Pancréas endocrine; Hormone pancréatique; Ilot Langerhans; Adipokine; Endocrinopathie; Rodentia; Mammalia; Vertebrata |
ED : | Deficiency; Glucose; Insulin; Secretion; Animal; Inhibition; β Cell; Diabetes mellitus; Mitochondria; Adiponectin; Mouse |
EG : | Endocrine pancreas; Pancreatic hormone; Langerhans islet; Adipokine; Endocrinopathy; Rodentia; Mammalia; Vertebrata |
SD : | Déficiencia; Glucosa; Insulina; Secreción; Animal; Inhibición; Célula β; Diabetes; Mitocondria; Adiponectina; Ratón |
LO : | INIST-13012.354000503689440190 |
ID : | 13-0281139 |
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Pascal:13-0281139Le document en format XML
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<author><name sortKey="Mingliang Zhang" sort="Mingliang Zhang" uniqKey="Mingliang Zhang" last="Mingliang Zhang">MINGLIANG ZHANG</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
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<author><name sortKey="Jiyoon Ryu" sort="Jiyoon Ryu" uniqKey="Jiyoon Ryu" last="Jiyoon Ryu">JIYOON RYU</name>
<affiliation><inist:fA14 i1="04"><s1>Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive</s1>
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<affiliation><inist:fA14 i1="05"><s1>Department of Pathophysiology, Second Military Medical University</s1>
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<author><name sortKey="Dongyun Shi" sort="Dongyun Shi" uniqKey="Dongyun Shi" last="Dongyun Shi">DONGYUN SHI</name>
<affiliation><inist:fA14 i1="06"><s1>Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University</s1>
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<author><name sortKey="Zhang, Weiping J" sort="Zhang, Weiping J" uniqKey="Zhang W" first="Weiping J." last="Zhang">Weiping J. Zhang</name>
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<author><name sortKey="Dong, Lily Q" sort="Dong, Lily Q" uniqKey="Dong L" first="Lily Q." last="Dong">Lily Q. Dong</name>
<affiliation><inist:fA14 i1="04"><s1>Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive</s1>
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<author><name sortKey="Weiping Jia" sort="Weiping Jia" uniqKey="Weiping Jia" last="Weiping Jia">WEIPING JIA</name>
<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function</title>
<author><name sortKey="Chen Wang" sort="Chen Wang" uniqKey="Chen Wang" last="Chen Wang">CHEN WANG</name>
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<author><name sortKey="Xiaowen Li" sort="Xiaowen Li" uniqKey="Xiaowen Li" last="Xiaowen Li">XIAOWEN LI</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
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<author><name sortKey="Kaida Mu" sort="Kaida Mu" uniqKey="Kaida Mu" last="Kaida Mu">KAIDA MU</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
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<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
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<author><name sortKey="Ling Li" sort="Ling Li" uniqKey="Ling Li" last="Ling Li">LING LI</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
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<author><name sortKey="Shihong Wang" sort="Shihong Wang" uniqKey="Shihong Wang" last="Shihong Wang">SHIHONG WANG</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
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<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
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<author><name sortKey="Yunxia Zhu" sort="Yunxia Zhu" uniqKey="Yunxia Zhu" last="Yunxia Zhu">YUNXIA ZHU</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
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<author><name sortKey="Mingliang Zhang" sort="Mingliang Zhang" uniqKey="Mingliang Zhang" last="Mingliang Zhang">MINGLIANG ZHANG</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
<s2>Shanghai</s2>
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<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
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<author><name sortKey="Jiyoon Ryu" sort="Jiyoon Ryu" uniqKey="Jiyoon Ryu" last="Jiyoon Ryu">JIYOON RYU</name>
<affiliation><inist:fA14 i1="04"><s1>Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive</s1>
<s2>San Antonio, TX 78229-3900</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
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<author><name sortKey="Zhifang Xie" sort="Zhifang Xie" uniqKey="Zhifang Xie" last="Zhifang Xie">ZHIFANG XIE</name>
<affiliation><inist:fA14 i1="05"><s1>Department of Pathophysiology, Second Military Medical University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>9 aut.</sZ>
<sZ>11 aut.</sZ>
</inist:fA14>
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<author><name sortKey="Dongyun Shi" sort="Dongyun Shi" uniqKey="Dongyun Shi" last="Dongyun Shi">DONGYUN SHI</name>
<affiliation><inist:fA14 i1="06"><s1>Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>10 aut.</sZ>
</inist:fA14>
</affiliation>
</author>
<author><name sortKey="Zhang, Weiping J" sort="Zhang, Weiping J" uniqKey="Zhang W" first="Weiping J." last="Zhang">Weiping J. Zhang</name>
<affiliation><inist:fA14 i1="05"><s1>Department of Pathophysiology, Second Military Medical University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>9 aut.</sZ>
<sZ>11 aut.</sZ>
</inist:fA14>
</affiliation>
</author>
<author><name sortKey="Dong, Lily Q" sort="Dong, Lily Q" uniqKey="Dong L" first="Lily Q." last="Dong">Lily Q. Dong</name>
<affiliation><inist:fA14 i1="04"><s1>Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive</s1>
<s2>San Antonio, TX 78229-3900</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
<sZ>12 aut.</sZ>
</inist:fA14>
</affiliation>
</author>
<author><name sortKey="Weiping Jia" sort="Weiping Jia" uniqKey="Weiping Jia" last="Weiping Jia">WEIPING JIA</name>
<affiliation><inist:fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
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<affiliation><inist:fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
<s2>Shanghai</s2>
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</author>
</analytic>
<series><title level="j" type="main">Diabetologia : (Berlin)</title>
<title level="j" type="abbreviated">Diabetologia : (Berl.)</title>
<idno type="ISSN">0012-186X</idno>
<imprint><date when="2013">2013</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Diabetologia : (Berlin)</title>
<title level="j" type="abbreviated">Diabetologia : (Berl.)</title>
<idno type="ISSN">0012-186X</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adiponectin</term>
<term>Animal</term>
<term>Deficiency</term>
<term>Diabetes mellitus</term>
<term>Glucose</term>
<term>Inhibition</term>
<term>Insulin</term>
<term>Mitochondria</term>
<term>Mouse</term>
<term>Secretion</term>
<term>β Cell</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Déficit</term>
<term>Glucose</term>
<term>Insuline</term>
<term>Sécrétion</term>
<term>Animal</term>
<term>Inhibition</term>
<term>Cellule β</term>
<term>Diabète</term>
<term>Mitochondrie</term>
<term>Adiponectine</term>
<term>Souris</term>
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<front><div type="abstract" xml:lang="en">Aims/hypothesis Adaptor protein, phosphotyrosine interaction, pleckstrin homology domain and leucine zipper containing 1 (APPL1) is an adapter protein that positively mediates adiponectin signalling. Deficiency of APPL1 in the target tissues of insulin induces insulin resistance. We therefore aimed, in the present study, to determine its role in regulating pancreatic beta cell function. Methods A hyperglycaemic clamp test was performed to determine insulin secretion in APPL1 knockout (KO) mice. Glucose- and adiponectin-induced insulin release was measured in islets from APPL1 KO mice or INS-1(832/13) cells with either APPL1 knockdown or overproduction. RT-PCR and western blotting were conducted to analyse gene expression and protein abundance. Oxygen consumption rate (OCR), ATP production and mitochondrial membrane potential were assayed to evaluate mitochondrial function. Results APPL1 is highly expressed in pancreatic islets, but its levels are decreased in mice fed a high-fat diet and db/db mice compared with controls. Deletion of the Appl1 gene leads to impairment of both the first and second phases of insulin secretion during hyperglycaemic clamp tests. In addition, glucose-stimulated insulin secretion (GSIS) is significantly decreased in islets from APPL1 KO mice. Conversely, overproduction of APPL1 leads to an increase in GSIS in beta cells. In addition, expression levels of several genes involved in insulin production, mitochondrial biogenesis and mitochondrial OCR, ATP production and mitochondrial membrane potential are reduced significantly in APPL1-knockdown beta cells. Moreover, suppression or overexproduction of APPL1 inhibits or stimulates adiponectin-potentiated GSIS in beta cells, respectively. Conclusions/interpretation Our study demonstrates the roles of APPL1 in regulating GSIS and mitochondrial function in pancreatic beta cells, which implicates APPL1 as a therapeutic target in the treatment of type 2 diabetes.</div>
</front>
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<fA08 i1="01" i2="1" l="ENG"><s1>Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>CHEN WANG</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>XIAOWEN LI</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>KAIDA MU</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>LING LI</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>SHIHONG WANG</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>YUNXIA ZHU</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>MINGLIANG ZHANG</s1>
</fA11>
<fA11 i1="08" i2="1"><s1>JIYOON RYU</s1>
</fA11>
<fA11 i1="09" i2="1"><s1>ZHIFANG XIE</s1>
</fA11>
<fA11 i1="10" i2="1"><s1>DONGYUN SHI</s1>
</fA11>
<fA11 i1="11" i2="1"><s1>ZHANG (Weiping J.)</s1>
</fA11>
<fA11 i1="12" i2="1"><s1>DONG (Lily Q.)</s1>
</fA11>
<fA11 i1="13" i2="1"><s1>WEIPING JIA</s1>
</fA11>
<fA14 i1="01"><s1>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road</s1>
<s2>Shanghai 200233</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Diabetes Institute, Shanghai Jiao Tong University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
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<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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</fA14>
<fA14 i1="03"><s1>Shanghai Key Laboratory of Diabetes Mellitus</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
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</fA14>
<fA14 i1="04"><s1>Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive</s1>
<s2>San Antonio, TX 78229-3900</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
<sZ>12 aut.</sZ>
</fA14>
<fA14 i1="05"><s1>Department of Pathophysiology, Second Military Medical University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>9 aut.</sZ>
<sZ>11 aut.</sZ>
</fA14>
<fA14 i1="06"><s1>Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University</s1>
<s2>Shanghai</s2>
<s3>CHN</s3>
<sZ>10 aut.</sZ>
</fA14>
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<fC01 i1="01" l="ENG"><s0>Aims/hypothesis Adaptor protein, phosphotyrosine interaction, pleckstrin homology domain and leucine zipper containing 1 (APPL1) is an adapter protein that positively mediates adiponectin signalling. Deficiency of APPL1 in the target tissues of insulin induces insulin resistance. We therefore aimed, in the present study, to determine its role in regulating pancreatic beta cell function. Methods A hyperglycaemic clamp test was performed to determine insulin secretion in APPL1 knockout (KO) mice. Glucose- and adiponectin-induced insulin release was measured in islets from APPL1 KO mice or INS-1(832/13) cells with either APPL1 knockdown or overproduction. RT-PCR and western blotting were conducted to analyse gene expression and protein abundance. Oxygen consumption rate (OCR), ATP production and mitochondrial membrane potential were assayed to evaluate mitochondrial function. Results APPL1 is highly expressed in pancreatic islets, but its levels are decreased in mice fed a high-fat diet and db/db mice compared with controls. Deletion of the Appl1 gene leads to impairment of both the first and second phases of insulin secretion during hyperglycaemic clamp tests. In addition, glucose-stimulated insulin secretion (GSIS) is significantly decreased in islets from APPL1 KO mice. Conversely, overproduction of APPL1 leads to an increase in GSIS in beta cells. In addition, expression levels of several genes involved in insulin production, mitochondrial biogenesis and mitochondrial OCR, ATP production and mitochondrial membrane potential are reduced significantly in APPL1-knockdown beta cells. Moreover, suppression or overexproduction of APPL1 inhibits or stimulates adiponectin-potentiated GSIS in beta cells, respectively. Conclusions/interpretation Our study demonstrates the roles of APPL1 in regulating GSIS and mitochondrial function in pancreatic beta cells, which implicates APPL1 as a therapeutic target in the treatment of type 2 diabetes.</s0>
</fC01>
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<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Inhibición</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Cellule β</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>β Cell</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Célula β</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Diabète</s0>
<s2>NM</s2>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Diabetes mellitus</s0>
<s2>NM</s2>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Diabetes</s0>
<s2>NM</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Mitochondrie</s0>
<s5>13</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Mitochondria</s0>
<s5>13</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Mitocondria</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Adiponectine</s0>
<s5>14</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Adiponectin</s0>
<s5>14</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Adiponectina</s0>
<s5>14</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Souris</s0>
<s5>69</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Mouse</s0>
<s5>69</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Ratón</s0>
<s5>69</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Pancréas endocrine</s0>
<s5>20</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Endocrine pancreas</s0>
<s5>20</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Páncreas endocrino</s0>
<s5>20</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Hormone pancréatique</s0>
<s5>21</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Pancreatic hormone</s0>
<s5>21</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Hormona pancreática</s0>
<s5>21</s5>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Ilot Langerhans</s0>
<s5>22</s5>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Langerhans islet</s0>
<s5>22</s5>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Isla Langerhans</s0>
<s5>22</s5>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Adipokine</s0>
<s5>23</s5>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Adipokine</s0>
<s5>23</s5>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Adipoquina</s0>
<s5>23</s5>
</fC07>
<fC07 i1="05" i2="X" l="FRE"><s0>Endocrinopathie</s0>
<s5>24</s5>
</fC07>
<fC07 i1="05" i2="X" l="ENG"><s0>Endocrinopathy</s0>
<s5>24</s5>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Endocrinopatía</s0>
<s5>24</s5>
</fC07>
<fC07 i1="06" i2="X" l="FRE"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="FRE"><s0>Mammalia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="ENG"><s0>Mammalia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="SPA"><s0>Mammalia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="FRE"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="ENG"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="SPA"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fN21><s1>266</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 13-0281139 INIST</NO>
<ET>Deficiency of APPL1 in mice impairs glucose-stimulated insulin secretion through inhibition of pancreatic beta cell mitochondrial function</ET>
<AU>CHEN WANG; XIAOWEN LI; KAIDA MU; LING LI; SHIHONG WANG; YUNXIA ZHU; MINGLIANG ZHANG; JIYOON RYU; ZHIFANG XIE; DONGYUN SHI; ZHANG (Weiping J.); DONG (Lily Q.); WEIPING JIA</AU>
<AF>Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road/Shanghai 200233/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut.); Diabetes Institute, Shanghai Jiao Tong University/Shanghai/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 13 aut.); Shanghai Key Laboratory of Diabetes Mellitus/Shanghai/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 13 aut.); Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive/San Antonio, TX 78229-3900/Etats-Unis (8 aut., 12 aut.); Department of Pathophysiology, Second Military Medical University/Shanghai/Chine (9 aut., 11 aut.); Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University/Shanghai/Chine (10 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Diabetologia : (Berlin); ISSN 0012-186X; Allemagne; Da. 2013; Vol. 56; No. 9; Pp. 1999-2009; Bibl. 48 ref.</SO>
<LA>Anglais</LA>
<EA>Aims/hypothesis Adaptor protein, phosphotyrosine interaction, pleckstrin homology domain and leucine zipper containing 1 (APPL1) is an adapter protein that positively mediates adiponectin signalling. Deficiency of APPL1 in the target tissues of insulin induces insulin resistance. We therefore aimed, in the present study, to determine its role in regulating pancreatic beta cell function. Methods A hyperglycaemic clamp test was performed to determine insulin secretion in APPL1 knockout (KO) mice. Glucose- and adiponectin-induced insulin release was measured in islets from APPL1 KO mice or INS-1(832/13) cells with either APPL1 knockdown or overproduction. RT-PCR and western blotting were conducted to analyse gene expression and protein abundance. Oxygen consumption rate (OCR), ATP production and mitochondrial membrane potential were assayed to evaluate mitochondrial function. Results APPL1 is highly expressed in pancreatic islets, but its levels are decreased in mice fed a high-fat diet and db/db mice compared with controls. Deletion of the Appl1 gene leads to impairment of both the first and second phases of insulin secretion during hyperglycaemic clamp tests. In addition, glucose-stimulated insulin secretion (GSIS) is significantly decreased in islets from APPL1 KO mice. Conversely, overproduction of APPL1 leads to an increase in GSIS in beta cells. In addition, expression levels of several genes involved in insulin production, mitochondrial biogenesis and mitochondrial OCR, ATP production and mitochondrial membrane potential are reduced significantly in APPL1-knockdown beta cells. Moreover, suppression or overexproduction of APPL1 inhibits or stimulates adiponectin-potentiated GSIS in beta cells, respectively. Conclusions/interpretation Our study demonstrates the roles of APPL1 in regulating GSIS and mitochondrial function in pancreatic beta cells, which implicates APPL1 as a therapeutic target in the treatment of type 2 diabetes.</EA>
<CC>002B21E01A</CC>
<FD>Déficit; Glucose; Insuline; Sécrétion; Animal; Inhibition; Cellule β; Diabète; Mitochondrie; Adiponectine; Souris</FD>
<FG>Pancréas endocrine; Hormone pancréatique; Ilot Langerhans; Adipokine; Endocrinopathie; Rodentia; Mammalia; Vertebrata</FG>
<ED>Deficiency; Glucose; Insulin; Secretion; Animal; Inhibition; β Cell; Diabetes mellitus; Mitochondria; Adiponectin; Mouse</ED>
<EG>Endocrine pancreas; Pancreatic hormone; Langerhans islet; Adipokine; Endocrinopathy; Rodentia; Mammalia; Vertebrata</EG>
<SD>Déficiencia; Glucosa; Insulina; Secreción; Animal; Inhibición; Célula β; Diabetes; Mitocondria; Adiponectina; Ratón</SD>
<LO>INIST-13012.354000503689440190</LO>
<ID>13-0281139</ID>
</server>
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