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Robertson MJ, Kent K, Tharp N, Nozawa K, Dean L, Mathew M, Grimm SL, Yu Z, Légaré C, Fujihara Y, Ikawa M, Sullivan R, Coarfa C, Matzuk MM, Garcia TX. Large-scale discovery of male reproductive tract-specific genes through analysis of RNA-seq datasets. BMC Biol 2020; 18:103. [PMID: 32814578 PMCID: PMC7436996 DOI: 10.1186/s12915-020-00826-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background The development of a safe, effective, reversible, non-hormonal contraceptive method for men has been an ongoing effort for the past few decades. However, despite significant progress on elucidating the function of key proteins involved in reproduction, understanding male reproductive physiology is limited by incomplete information on the genes expressed in reproductive tissues, and no contraceptive targets have so far reached clinical trials. To advance product development, further identification of novel reproductive tract-specific genes leading to potentially druggable protein targets is imperative. Results In this study, we expand on previous single tissue, single species studies by integrating analysis of publicly available human and mouse RNA-seq datasets whose initial published purpose was not focused on identifying male reproductive tract-specific targets. We also incorporate analysis of additional newly acquired human and mouse testis and epididymis samples to increase the number of targets identified. We detected a combined total of 1178 genes for which no previous evidence of male reproductive tract-specific expression was annotated, many of which are potentially druggable targets. Through RT-PCR, we confirmed the reproductive tract-specific expression of 51 novel orthologous human and mouse genes without a reported mouse model. Of these, we ablated four epididymis-specific genes (Spint3, Spint4, Spint5, and Ces5a) and two testis-specific genes (Pp2d1 and Saxo1) in individual or double knockout mice generated through the CRISPR/Cas9 system. Our results validate a functional requirement for Spint4/5 and Ces5a in male mouse fertility, while demonstrating that Spint3, Pp2d1, and Saxo1 are each individually dispensable for male mouse fertility. Conclusions Our work provides a plethora of novel testis- and epididymis-specific genes and elucidates the functional requirement of several of these genes, which is essential towards understanding the etiology of male infertility and the development of male contraceptives.
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Affiliation(s)
- Matthew J Robertson
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Center for Precision Environmental Health, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Katarzyna Kent
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Biology and Biotechnology, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX, 77058, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Nathan Tharp
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Biology and Biotechnology, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX, 77058, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Kaori Nozawa
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Laura Dean
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Biology and Biotechnology, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX, 77058, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Michelle Mathew
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Biology and Biotechnology, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX, 77058, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Sandra L Grimm
- Center for Precision Environmental Health, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Zhifeng Yu
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Christine Légaré
- Department Obstetrics, Gynecology and Reproduction, Faculty Medicine, Université Laval, Quebec, QC, Canada.,Reproduction, Mother and Youth Health Division, Centre de recherche du CHU de Québec-Université Laval, 2705 boul Laurier, Quebec, QC, G1V 4G2, Canada
| | - Yoshitaka Fujihara
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Experimental Genome Research, Research Institute for Microbial Diseases, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Masahito Ikawa
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Robert Sullivan
- Department Obstetrics, Gynecology and Reproduction, Faculty Medicine, Université Laval, Quebec, QC, Canada.,Reproduction, Mother and Youth Health Division, Centre de recherche du CHU de Québec-Université Laval, 2705 boul Laurier, Quebec, QC, G1V 4G2, Canada
| | - Cristian Coarfa
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA. .,Center for Precision Environmental Health, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA. .,Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.
| | - Martin M Matzuk
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Thomas X Garcia
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA. .,Department of Biology and Biotechnology, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX, 77058, USA. .,Center for Drug Discovery, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.
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Christensen IB, Wu Q, Bohlbro AS, Skals MG, Damkier HH, Hübner CA, Fenton RA, Praetorius J. Genetic disruption of slc4a10 alters the capacity for cellular metabolism and vectorial ion transport in the choroid plexus epithelium. Fluids Barriers CNS 2020; 17:2. [PMID: 31906971 PMCID: PMC6945596 DOI: 10.1186/s12987-019-0162-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/12/2019] [Indexed: 02/02/2023] Open
Abstract
Background Genetic disruption of slc4a10, which encodes the sodium-dependent chloride/bicarbonate exchanger Ncbe, leads to a major decrease in Na+-dependent HCO3− import into choroid plexus epithelial cells in mice and to a marked reduction in brain intraventricular fluid volume. This suggests that Ncbe functionally is a key element in vectorial Na+ transport and thereby for cerebrospinal fluid secretion in the choroid plexus. However, slc4a10 disruption results in severe changes in expression of Na+,K+-ATPase complexes and other major transport proteins, indicating that profound cellular changes accompany the genetic manipulation. Methods A tandem mass tag labeling strategy was chosen for quantitative mass spectrometry. Alterations in the broader patterns of protein expression in the choroid plexus in response to genetic disruption of Ncbe was validated by semi-quantitative immunoblotting, immunohistochemistry and morphometry. Results The abundance of 601 proteins were found significantly altered in the choroid plexus from Ncbe ko mice relative to Ncbe wt. In addition to a variety of transport proteins, particularly large changes in the abundance of proteins involved in cellular energy metabolism were detected in the Ncbe ko mice. In general, the abundance of rate limiting glycolytic enzymes and several mitochondrial enzymes were reduced following slc4a10 disruption. Surprisingly, this was accompanied by increased ATP levels in choroid plexus cells, indicating that the reduction in capacity for energy metabolism was adaptive to high ATP rather than causal for a decreased capacity for ion and water transport. Ncbe-deficient cells also had a reduced cell area and decreased K+ content. Conclusion Our findings suggest that the lack of effective Na+-entry into the epithelial cells of the choroid plexus leads to a profound change in the cellular phenotype, shifting from a high-rate secretory function towards a more dormant state; similar to what is observed during ageing or Alzheimer’s disease.
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Affiliation(s)
- Inga Baasch Christensen
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Qi Wu
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Anders Solitander Bohlbro
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Marianne Gerberg Skals
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Helle Hasager Damkier
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Christian Andreas Hübner
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Robert Andrew Fenton
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark
| | - Jeppe Praetorius
- Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, r. 219, 8000, Aarhus C, Denmark.
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Carcinoembryonic Cell Adhesion-Related Molecule 2 Regulates Insulin Secretion and Energy Balance. Int J Mol Sci 2019; 20:ijms20133231. [PMID: 31266142 PMCID: PMC6651791 DOI: 10.3390/ijms20133231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/12/2019] [Accepted: 06/25/2019] [Indexed: 12/13/2022] Open
Abstract
The Carcinoembryonic Antigen-Related Cell Adhesion Molecule (CEACAM) family of proteins plays a significant role in regulating peripheral insulin action by participating in the regulation of insulin metabolism and energy balance. In light of their differential expression, CEACAM1 regulates chiefly insulin extraction, whereas CEACAM2 appears to play a more important role in regulating insulin secretion and overall energy balance, including food intake, energy expenditure and spontaneous physical activity. We will focus this review on the role of CEACAM2 in regulating insulin metabolism and energy balance with an overarching goal to emphasize the importance of the coordinated regulatory effect of these related plasma membrane glycoproteins on insulin metabolism and action.
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Ghadieh HE, Russo L, Muturi HT, Ghanem SS, Manaserh IH, Noh HL, Suk S, Kim JK, Hill JW, Najjar SM. Hyperinsulinemia drives hepatic insulin resistance in male mice with liver-specific Ceacam1 deletion independently of lipolysis. Metabolism 2019; 93:33-43. [PMID: 30664851 PMCID: PMC6401268 DOI: 10.1016/j.metabol.2019.01.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/28/2018] [Accepted: 01/16/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND CEACAM1 regulates insulin sensitivity by promoting insulin clearance. Accordingly, global C57BL/6J.Cc1-/- null mice display hyperinsulinemia due to impaired insulin clearance at 2 months of age, followed by insulin resistance, steatohepatitis, visceral obesity and leptin resistance at 6 months. The study aimed at investigating the primary role of hepatic CEACAM1 in insulin and lipid homeostasis independently of its metabolic effect in extra-hepatic tissues. METHODS Liver-specific C57BL/6J.AlbCre+Cc1fl/fl mice were generated and their metabolic phenotype was characterized by comparison to that of their littermate controls at 2-9 months of age, using hyperinsulinemic-euglycemic clamp analysis and indirect calorimetry. The effect of hyperphagia on insulin resistance was assessed by pair-feeding experiments. RESULTS Liver-specific AlbCre+Cc1fl/fl mutants exhibited impaired insulin clearance and hyperinsulinemia at 2 months, followed by hepatic insulin resistance (assessed by hyperinsulinemic-euglycemic clamp analysis) and steatohepatitis at ~ 7 months of age, at which point visceral obesity and hyperphagia developed, in parallel to hyperleptinemia and blunted hypothalamic STAT3 phosphorylation in response to an intraperitoneal injection of leptin. Hyperinsulinemia caused hypothalamic insulin resistance, followed by increased fatty acid synthase activity, which together with defective hypothalamic leptin signaling contributed to hyperphagia and reduced physical activity. Pair-feeding experiment showed that hyperphagia caused systemic insulin resistance, including blunted insulin signaling in white adipose tissue and lipolysis, at 8-9 months of age. CONCLUSION AlbCre+Cc1fl/fl mutants provide an in vivo demonstration of the key role of impaired hepatic insulin clearance and hyperinsulinemia in the pathogenesis of secondary hepatic insulin resistance independently of lipolysis. They also reveal an important role for the liver-hypothalamic axis in the regulation of energy balance and subsequently, systemic insulin sensitivity.
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Affiliation(s)
- Hilda E Ghadieh
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA; Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Lucia Russo
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Harrison T Muturi
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Simona S Ghanem
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Iyad H Manaserh
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Hye Lim Noh
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Sujin Suk
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jason K Kim
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA; Division of Endocrinology, Metabolism and Diabetes, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jennifer W Hill
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Sonia M Najjar
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA; Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA; Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA.
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6
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Russo L, Muturi HT, Ghadieh HE, Ghanem SS, Bowman TA, Noh HL, Dagdeviren S, Dogbey GY, Kim JK, Heinrich G, Najjar SM. Liver-specific reconstitution of CEACAM1 reverses the metabolic abnormalities caused by its global deletion in male mice. Diabetologia 2017; 60:2463-2474. [PMID: 28913658 PMCID: PMC5788286 DOI: 10.1007/s00125-017-4432-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 07/17/2017] [Indexed: 02/06/2023]
Abstract
AIMS/HYPOTHESIS The carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes insulin clearance. Mice with global null mutation (Cc1 -/-) or with liver-specific inactivation (L-SACC1) of Cc1 (also known as Ceacam1) gene display hyperinsulinaemia resulting from impaired insulin clearance, insulin resistance, steatohepatitis and obesity. Because increased lipolysis contributes to the metabolic phenotype caused by transgenic inactivation of CEACAM1 in the liver, we aimed to further investigate the primary role of hepatic CEACAM1-dependent insulin clearance in insulin and lipid homeostasis. To this end, we examined whether transgenic reconstitution of CEACAM1 in the liver of global Cc1 -/- mutant mice reverses their abnormal metabolic phenotype. METHODS Insulin response was assessed by hyperinsulinaemic-euglycaemic clamp analysis and energy balance was analysed by indirect calorimetry. Mice were overnight-fasted and refed for 7 h to assess fatty acid synthase activity in the liver and the hypothalamus in response to insulin release during refeeding. RESULTS Liver-based rescuing of CEACAM1 restored insulin clearance, plasma insulin level, insulin sensitivity and steatohepatitis caused by global deletion of Cc1. It also reversed the gain in body weight and total fat mass observed with Cc1 deletion, in parallel to normalising energy balance. Mechanistically, reversal of hyperphagia appeared to result from reducing fatty acid synthase activity and restoring insulin signalling in the hypothalamus. CONCLUSIONS/INTERPRETATION Despite the potential confounding effects of deleting Cc1 from extrahepatic tissues, liver-based rescuing of CEACAM1 resulted in full normalisation of the metabolic phenotype, underscoring the key role that CEACAM1-dependent hepatic insulin clearance pathways play in regulating systemic insulin sensitivity, lipid homeostasis and energy balance.
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Affiliation(s)
- Lucia Russo
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Harrison T Muturi
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Irvine Hall 229, 1 Ohio University, Athens, OH, 45701-2979, USA
| | - Hilda E Ghadieh
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Simona S Ghanem
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Thomas A Bowman
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Hye Lim Noh
- Division of Endocrinology, Metabolism and Diabetes, University of Massachusetts Medical School, Worcester, MA, USA
| | - Sezin Dagdeviren
- Division of Endocrinology, Metabolism and Diabetes, University of Massachusetts Medical School, Worcester, MA, USA
| | - Godwin Y Dogbey
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Irvine Hall 229, 1 Ohio University, Athens, OH, 45701-2979, USA
| | - Jason K Kim
- Division of Endocrinology, Metabolism and Diabetes, University of Massachusetts Medical School, Worcester, MA, USA
| | - Garrett Heinrich
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Irvine Hall 229, 1 Ohio University, Athens, OH, 45701-2979, USA
- Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA.
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Irvine Hall 229, 1 Ohio University, Athens, OH, 45701-2979, USA.
- Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA.
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Ghanem SS, Muturi HT, DeAngelis AM, Hu J, Kulkarni RN, Heinrich G, Najjar SM. Age-dependent insulin resistance in male mice with null deletion of the carcinoembryonic antigen-related cell adhesion molecule 2 gene. Diabetologia 2017; 60:1751-1760. [PMID: 28567513 PMCID: PMC5709176 DOI: 10.1007/s00125-017-4307-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/21/2017] [Indexed: 10/19/2022]
Abstract
AIMS/HYPOTHESIS Cc2 -/- mice lacking the gene encoding the carcinoembryonic-antigen-related cell adhesion molecule 2 (Cc2 [also known as Ceacam2]) exhibit hyperphagia that leads to obesity and insulin resistance. This starts at 2 months of age in female mice. Male mutants maintain normal body weight and insulin sensitivity until the last age previously examined (7-8 months), owing to increased sympathetic tone to white adipose tissue and energy expenditure. The current study investigates whether insulin resistance develops in mutant male mice at a later age and whether this is accompanied by changes in insulin homeostasis. METHODS Insulin response was assessed by insulin and glucose tolerance tests. Energy balance was analysed by indirect calorimetry. RESULTS Male Cc2 -/- mice developed overt metabolic abnormalities at about 9 months of age. These include elevated global fat mass, hyperinsulinaemia and insulin resistance (as determined by glucose and insulin intolerance, fed hyperglycaemia and decreased insulin signalling pathways). Pair-feeding experiments showed that insulin resistance resulted from hyperphagia. Indirect calorimetry demonstrated that older mutant male mice had compromised energy expenditure. Despite increased insulin secretion caused by Cc2 deletion, chronic hyperinsulinaemia did not develop in mutant male mice until about 9 months of age, at which point insulin clearance began to decline substantially. This was probably mediated by a marked decrease in hepatic CEACAM1 expression. CONCLUSIONS/INTERPRETATION The data demonstrate that at about 9 months of age, Cc2 -/- male mice develop a reduction in energy expenditure and energy imbalance which, combined with a progressive decrease in CEACAM1-dependent hepatic insulin clearance, causes chronic hyperinsulinaemia and sustained age-dependent insulin resistance. This represents a novel mechanistic underpinning of age-related impairment of hepatic insulin clearance.
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Affiliation(s)
- Simona S Ghanem
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Harrison T Muturi
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Anthony M DeAngelis
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Jiang Hu
- Section on Islet Cell and Regenerative Biology, Joslin Diabetes Center and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Harvard Stem Cell Institute, Boston, MA, USA
| | - Rohit N Kulkarni
- Section on Islet Cell and Regenerative Biology, Joslin Diabetes Center and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Harvard Stem Cell Institute, Boston, MA, USA
| | - Garrett Heinrich
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, 45701-2979, USA
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA.
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA.
- Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, 45701-2979, USA.
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Zinn K, Özkan E. Neural immunoglobulin superfamily interaction networks. Curr Opin Neurobiol 2017; 45:99-105. [PMID: 28558267 DOI: 10.1016/j.conb.2017.05.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/24/2017] [Accepted: 05/15/2017] [Indexed: 12/31/2022]
Abstract
The immunoglobulin superfamily (IgSF) encompasses hundreds of cell surface proteins containing multiple immunoglobulin-like (Ig) domains. Among these are neural IgCAMs, which are cell adhesion molecules that mediate interactions between cells in the nervous system. IgCAMs in some vertebrate IgSF subfamilies bind to each other homophilically and heterophilically, forming small interaction networks. In Drosophila, a global 'interactome' screen identified two larger networks in which proteins in one IgSF subfamily selectively interact with proteins in a different subfamily. One of these networks, the 'Dpr-ome', includes 30 IgSF proteins, each of which is expressed in a unique subset of neurons. Recent evidence shows that one interacting protein pair within the Dpr-ome network is required for development of the brain and neuromuscular system.
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Affiliation(s)
- Kai Zinn
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States.
| | - Engin Özkan
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, United States
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Heinrich G, Ghadieh HE, Ghanem SS, Muturi HT, Rezaei K, Al-Share QY, Bowman TA, Zhang D, Garofalo RS, Yin L, Najjar SM. Loss of Hepatic CEACAM1: A Unifying Mechanism Linking Insulin Resistance to Obesity and Non-Alcoholic Fatty Liver Disease. Front Endocrinol (Lausanne) 2017; 8:8. [PMID: 28184213 PMCID: PMC5266688 DOI: 10.3389/fendo.2017.00008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/10/2017] [Indexed: 12/25/2022] Open
Abstract
The pathogenesis of human non-alcoholic fatty liver disease (NAFLD) remains unclear, in particular in the context of its relationship to insulin resistance and visceral obesity. Work on the carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) in mice has resolved some of the related questions. CEACAM1 promotes insulin clearance by enhancing the rate of uptake of the insulin-receptor complex. It also mediates a negative acute effect of insulin on fatty acid synthase activity. This positions CEACAM1 to coordinate the regulation of insulin and lipid metabolism. Fed a regular chow diet, global null mutation of Ceacam1 manifest hyperinsulinemia, insulin resistance, obesity, and steatohepatitis. They also develop spontaneous chicken-wire fibrosis, characteristic of non-alcoholic steatohepatitis. Reduction of hepatic CEACAM1 expression plays a significant role in the pathogenesis of diet-induced metabolic abnormalities, as bolstered by the protective effect of hepatic CEACAM1 gain-of-function against the metabolic response to dietary fat. Together, this emphasizes that loss of hepatic CEACAM1 links NAFLD to insulin resistance and obesity.
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Affiliation(s)
- Garrett Heinrich
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Heritage College of Osteopathic Medicine, Diabetes Institute, Ohio University, Athens, OH, USA
| | - Hilda E. Ghadieh
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Simona S. Ghanem
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Harrison T. Muturi
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Khadijeh Rezaei
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Qusai Y. Al-Share
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Thomas A. Bowman
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Deqiang Zhang
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | | | - Lei Yin
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Sonia M. Najjar
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Heritage College of Osteopathic Medicine, Diabetes Institute, Ohio University, Athens, OH, USA
- *Correspondence: Sonia M. Najjar,
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Alshahrani MM, Kyriacou RP, O'Malley CJ, Heinrich G, Najjar SM, Jackson DE. CEACAM2 positively regulates integrin α IIbβ 3-mediated platelet functions. Platelets 2016; 27:743-750. [PMID: 27161904 DOI: 10.3109/09537104.2016.1171834] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 03/22/2016] [Indexed: 11/13/2022]
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is an Ig-ITIM superfamily member that regulates integrin αIIbβ3 function. We hypothesized that its twin protein, CEACAM2, exerts a similar physiologic role in murine platelets. CEACAM2-deficient mice (Cc2-/-) displayed prolonged tail bleeding times and increased volume of blood loss. Cc2-/- platelets have moderate integrin αIIbβ3-mediated functional defects with impaired kinetics of platelet spreading on fibrinogen and type I collagen and delayed kinetics in the retraction of fibrin clots in vitro. This functional integrin αIIbβ3 defect could not be attributed to altered integrin αIIbβ3 expression. Cc2-/- platelets displayed normal 'inside-out' signaling properties as demonstrated by normal agonist-induced binding of soluble fluorescein isothiocyanate (FITC)-fibrinogen and JON/A antibody binding. This data provides direct evidence that disruption of CEACAM2 induces a moderate integrin αIIbβ3-mediated platelet function defect, and that CEACAM2 is essential to maintain a normal integrin αIIbβ3-mediated platelet function.
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Affiliation(s)
- Musaed M Alshahrani
- a Thrombosis and Vascular Diseases Laboratory, School of Medical Sciences, RMIT University , Bundoora , Australia
| | - Roula P Kyriacou
- a Thrombosis and Vascular Diseases Laboratory, School of Medical Sciences, RMIT University , Bundoora , Australia
| | - Cindy J O'Malley
- a Thrombosis and Vascular Diseases Laboratory, School of Medical Sciences, RMIT University , Bundoora , Australia
| | - Garrett Heinrich
- b Department of Physiology , Center for Diabetes and Endocrine Research, University of Toledo , Toledo , OH , USA
- c Department of Pharmacology , College of Medicine and Life Sciences, University of Toledo , Toledo , OH , USA
| | - Sonia M Najjar
- b Department of Physiology , Center for Diabetes and Endocrine Research, University of Toledo , Toledo , OH , USA
- c Department of Pharmacology , College of Medicine and Life Sciences, University of Toledo , Toledo , OH , USA
| | - Denise E Jackson
- a Thrombosis and Vascular Diseases Laboratory, School of Medical Sciences, RMIT University , Bundoora , Australia
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11
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Russo L, Ghadieh HE, Ghanem SS, Al-Share QY, Smiley ZN, Gatto-Weis C, Esakov EL, McInerney MF, Heinrich G, Tong X, Yin L, Najjar SM. Role for hepatic CEACAM1 in regulating fatty acid metabolism along the adipocyte-hepatocyte axis. J Lipid Res 2016; 57:2163-2175. [PMID: 27777319 DOI: 10.1194/jlr.m072066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/17/2016] [Indexed: 12/15/2022] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) regulates insulin sensitivity by promoting hepatic insulin clearance and mediating suppression of fatty acid synthase activity. Feeding C57BL/6J male mice with a high-fat (HF) diet for 3-4 weeks triggered a >60% decrease in hepatic CEACAM1 levels to subsequently impair insulin clearance and cause systemic insulin resistance and hepatic steatosis. This study aimed at investigating whether lipolysis drives reduction in hepatic CEACAM1 and whether this constitutes a key mechanism leading to diet-induced metabolic abnormalities. Blocking lipolysis with a daily intraperitoneal injection of nicotinic acid in the last two days of a 30-day HF feeding regimen demonstrated that white adipose tissue (WAT)-derived fatty acids repressed hepatic CEACAM1-dependent regulation of insulin and lipid metabolism in 3-month-old male C57BL/6J mice. Adenoviral-mediated CEACAM1 redelivery countered the adverse metabolic effect of the HF diet on insulin resistance, hepatic steatosis, visceral obesity, and energy expenditure. It also reversed the effect of HF diet on inflammation and fibrosis in WAT and liver. This assigns a causative role for lipolysis-driven decrease in hepatic CEACAM1 level and its regulation of insulin and lipid metabolism in sustaining systemic insulin resistance, hepatic steatosis, and other abnormalities associated with excessive energy supply.
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Affiliation(s)
- Lucia Russo
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614
| | - Hilda E Ghadieh
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614
| | - Simona S Ghanem
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614
| | - Qusai Y Al-Share
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614
| | - Zachary N Smiley
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614
| | - Cara Gatto-Weis
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614.,Department of Pathology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614
| | - Emily L Esakov
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614.,Department of Medicinal and Biological Chemistry at the College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614
| | - Marcia F McInerney
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614.,Department of Medicinal and Biological Chemistry at the College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614
| | - Garrett Heinrich
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614.,Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701
| | - Xin Tong
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48019
| | - Lei Yin
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48019
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research, University of Toledo, Toledo, OH 43614 .,Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701
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12
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Heinrich G, Russo L, Castaneda TR, Pfeiffer V, Ghadieh HE, Ghanem SS, Wu J, Faulkner LD, Ergün S, McInerney MF, Hill JW, Najjar SM. Leptin Resistance Contributes to Obesity in Mice with Null Mutation of Carcinoembryonic Antigen-related Cell Adhesion Molecule 1. J Biol Chem 2016; 291:11124-32. [PMID: 27002145 DOI: 10.1074/jbc.m116.716431] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 01/28/2023] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes hepatic insulin clearance. Consistently, mice with null mutation of Ceacam1 (Cc1(-/-)) exhibit impaired insulin clearance with increased lipid production in liver and redistribution to white adipose tissue, leading to visceral obesity at 2 months of age. When the mutation is propagated on the C57/BL6J genetic background, total fat mass rises significantly with age, and glucose intolerance and systemic insulin resistance develop at 6 months of age. This study was carried out to determine the mechanisms underlying the marked increase in total fat mass in 6-month-old mutants. Indirect calorimetry analysis showed that Cc1(-/-) mice develop hyperphagia and a significant reduction in physical activity, in particular in the early hours of the dark cycle, during which energy expenditure is only slightly lower than in wild-type mice. They also exhibit increased triglyceride accumulation in skeletal muscle, due in part to incomplete fatty acid β-oxidation. Mechanistically, hypothalamic leptin signaling is reduced, as demonstrated by blunted STAT3 phosphorylation in coronal sections in response to an intracerebral ventricular injection of leptin. Hypothalamic fatty-acid synthase activity is also elevated in the mutants. Together, the data show that the increase in total fat mass in Cc1(-/-) mice is mainly attributed to hyperphagia and reduced spontaneous physical activity. Although the contribution of the loss of CEACAM1 from anorexigenic proopiomelanocortin neurons in the arcuate nucleus is unclear, leptin resistance and elevated hypothalamic fatty-acid synthase activity could underlie altered energy balance in these mice.
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Affiliation(s)
| | - Lucia Russo
- From the Center for Diabetes and Endocrine Research and
| | - Tamara R Castaneda
- From the Center for Diabetes and Endocrine Research and Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio 43614
| | - Verena Pfeiffer
- the Institut für Anatomie und Zellbiologie, Universität Würzburg, 97070 Würzburg, Germany, and
| | | | | | - Jieshen Wu
- From the Center for Diabetes and Endocrine Research and
| | | | - Süleyman Ergün
- the Institut für Anatomie und Zellbiologie, Universität Würzburg, 97070 Würzburg, Germany, and
| | - Marcia F McInerney
- From the Center for Diabetes and Endocrine Research and Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio 43614
| | | | - Sonia M Najjar
- From the Center for Diabetes and Endocrine Research and the Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio 45701
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13
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Ghanem SS, Heinrich G, Lester SG, Pfeiffer V, Bhattacharya S, Patel PR, DeAngelis AM, Dai T, Ramakrishnan SK, Smiley ZN, Jung DY, Lee Y, Kitamura T, Ergun S, Kulkarni RN, Kim JK, Giovannucci DR, Najjar SM. Increased Glucose-induced Secretion of Glucagon-like Peptide-1 in Mice Lacking the Carcinoembryonic Antigen-related Cell Adhesion Molecule 2 (CEACAM2). J Biol Chem 2015; 291:980-8. [PMID: 26586918 DOI: 10.1074/jbc.m115.692582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Indexed: 01/11/2023] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 2 (CEACAM2) regulates food intake as demonstrated by hyperphagia in mice with the Ceacam2 null mutation (Cc2(-/-)). This study investigated whether CEACAM2 also regulates insulin secretion. Ceacam2 deletion caused an increase in β-cell secretory function, as assessed by hyperglycemic clamp analysis, without affecting insulin response. Although CEACAM2 is expressed in pancreatic islets predominantly in non-β-cells, basal plasma levels of insulin, glucagon and somatostatin, islet areas, and glucose-induced insulin secretion in pooled Cc2(-/-) islets were all normal. Consistent with immunofluorescence analysis showing CEACAM2 expression in distal intestinal villi, Cc2(-/-) mice exhibited a higher release of oral glucose-mediated GLP-1, an incretin that potentiates insulin secretion in response to glucose. Compared with wild type, Cc2(-/-) mice also showed a higher insulin excursion during the oral glucose tolerance test. Pretreating with exendin(9-39), a GLP-1 receptor antagonist, suppressed the effect of Ceacam2 deletion on glucose-induced insulin secretion. Moreover, GLP-1 release into the medium of GLUTag enteroendocrine cells was increased with siRNA-mediated Ceacam2 down-regulation in parallel to an increase in Ca(2+) entry through L-type voltage-dependent Ca(2+) channels. Thus, CEACAM2 regulates insulin secretion, at least in part, by a GLP-1-mediated mechanism, independent of confounding metabolic factors.
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Affiliation(s)
- Simona S Ghanem
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Garrett Heinrich
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Sumona G Lester
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Verena Pfeiffer
- the Institut für Anatomie und Zellbiologie, Universität Würzburg, D-97070 Würzburg, Germany
| | - Sumit Bhattacharya
- Neurosciences, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, Ohio 43614
| | - Payal R Patel
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Anthony M DeAngelis
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Tong Dai
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Sadeesh K Ramakrishnan
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Zachary N Smiley
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
| | - Dae Y Jung
- the Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Yongjin Lee
- the Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Tadahiro Kitamura
- the Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Gunma, Japan, and
| | - Suleyman Ergun
- the Institut für Anatomie und Zellbiologie, Universität Würzburg, D-97070 Würzburg, Germany
| | - Rohit N Kulkarni
- the Islet Cell and Regenerative Biology, Joslin Diabetes Center and Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02215
| | - Jason K Kim
- the Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - David R Giovannucci
- Neurosciences, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, Ohio 43614
| | - Sonia M Najjar
- From the Center for Diabetes and Endocrine Research and Departments of Physiology and Pharmacology and
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14
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Al-Share QY, DeAngelis AM, Lester SG, Bowman TA, Ramakrishnan SK, Abdallah SL, Russo L, Patel PR, Kaw MK, Raphael CK, Kim AJ, Heinrich G, Lee AD, Kim JK, Kulkarni RN, Philbrick WM, Najjar SM. Forced Hepatic Overexpression of CEACAM1 Curtails Diet-Induced Insulin Resistance. Diabetes 2015; 64:2780-90. [PMID: 25972571 PMCID: PMC4512217 DOI: 10.2337/db14-1772] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 03/16/2015] [Indexed: 12/18/2022]
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) regulates insulin sensitivity by promoting hepatic insulin clearance. Liver-specific inactivation or global null-mutation of Ceacam1 impairs hepatic insulin extraction to cause chronic hyperinsulinemia, resulting in insulin resistance and visceral obesity. In this study we investigated whether diet-induced insulin resistance implicates changes in hepatic CEACAM1. We report that feeding C57/BL6J mice a high-fat diet reduced hepatic CEACAM1 levels by >50% beginning at 21 days, causing hyperinsulinemia, insulin resistance, and elevation in hepatic triacylglycerol content. Conversely, liver-specific inducible CEACAM1 expression prevented hyperinsulinemia and markedly limited insulin resistance and hepatic lipid accumulation that were induced by prolonged high-fat intake. This was partly mediated by increased hepatic β-fatty acid oxidation and energy expenditure. The data demonstrate that the high-fat diet reduced hepatic CEACAM1 expression and that overexpressing CEACAM1 in liver curtailed diet-induced metabolic abnormalities by protecting hepatic insulin clearance.
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Affiliation(s)
- Qusai Y Al-Share
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Anthony M DeAngelis
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Sumona Ghosh Lester
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Thomas A Bowman
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Sadeesh K Ramakrishnan
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Simon L Abdallah
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Lucia Russo
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Payal R Patel
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Meenakshi K Kaw
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Christian K Raphael
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
| | - Andrea Jung Kim
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Rehabilitation Sciences, College of Health Sciences, The University of Toledo, Toledo, OH
| | - Garrett Heinrich
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Rehabilitation Sciences, College of Health Sciences, The University of Toledo, Toledo, OH
| | - Abraham D Lee
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Rehabilitation Sciences, College of Health Sciences, The University of Toledo, Toledo, OH
| | - Jason K Kim
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA
| | - Rohit N Kulkarni
- Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - William M Philbrick
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH
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15
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Ghadieh HE, Smiley ZN, Kopfman MW, Najjar MG, Hake MJ, Najjar SM. Chlorogenic acid/chromium supplement rescues diet-induced insulin resistance and obesity in mice. Nutr Metab (Lond) 2015; 12:19. [PMID: 26045713 PMCID: PMC4455985 DOI: 10.1186/s12986-015-0014-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 05/08/2015] [Indexed: 12/15/2022] Open
Abstract
Abdominal obesity is a major risk factor for insulin resistance, type 2 diabetes and cardiovascular diseases. Dietary fat induces insulin resistance in humans and rodents. The current study investigates whether a Chlorogenic acid/Chromium III supplement rescues obesity and insulin resistance caused by high-fat feeding of male C57BL/6 J mice for 7 weeks. Administering an oral daily dose of this supplement in the last 3 weeks of feeding reversed diet-induced body weight gain and insulin resistance, assessed by hyperglycemia, glucose intolerance and insulin intolerance. Indirect calorimetry analysis revealed that this effect is mediated at least partly, by increasing energy expenditure and spontaneous locomoter activity. These findings underscore the important role that chlorogenic acid and chromium play in maintaining glucose metabolism and insulin response in mice fed a high-fat diet.
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Affiliation(s)
- Hilda E Ghadieh
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA
| | - Zachary N Smiley
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA
| | - Melissa W Kopfman
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA
| | - Mona G Najjar
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA
| | - Michael J Hake
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research (CeDER), College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614 USA ; College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail stop 1009, Toledo, OH 43614 USA
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16
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CEACAM2 negatively regulates hemi (ITAM-bearing) GPVI and CLEC-2 pathways and thrombus growth in vitro and in vivo. Blood 2014; 124:2431-41. [PMID: 25085348 DOI: 10.1182/blood-2014-04-569707] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecule-2 (CEACAM2) is a cell-surface glycoprotein expressed on blood, epithelial, and vascular cells. CEACAM2 possesses adhesive and signaling properties mediated by immunoreceptor tyrosine-based inhibitory motifs. In this study, we demonstrate that CEACAM2 is expressed on the surface and in intracellular pools of platelets. Functional studies of platelets from Ceacam2(-/-)-deficient mice (Cc2(-/-)) revealed that CEACAM2 serves to negatively regulate collagen glycoprotein VI (platelet) (GPVI)-FcRγ-chain and the C-type lectinlike receptor 2 (CLEC-2) signaling. Cc2(-/-) platelets displayed enhanced GPVI and CLEC-2-selective ligands, collagen-related peptide (CRP), collagen, and rhodocytin (Rhod)-mediated platelet aggregation. They also exhibited increased adhesion on type I collagen, and hyperresponsive CRP and CLEC-2-induced α and dense granule release compared with wild-type platelets. Furthermore, using intravital microscopy to ferric chloride (FeCl3)-injured mesenteric arterioles and laser-induced injury of cremaster muscle arterioles, we herein show that thrombi formed in Cc2(-/-) mice were larger and more stable than wild-type controls in vivo. Thus, CEACAM2 is a novel platelet immunoreceptor that acts as a negative regulator of platelet GPVI-collagen interactions and of ITAM receptor CLEC-2 pathways.
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17
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Patel PR, Ramakrishnan SK, Kaw MK, Raphael CK, Ghosh S, Marino JS, Heinrich G, Lee SJ, Bourey RE, Hill JW, Jung DY, Morgan DA, Kim JK, Rahmouni SK, Najjar SM. Increased metabolic rate and insulin sensitivity in male mice lacking the carcino-embryonic antigen-related cell adhesion molecule 2. Diabetologia 2012; 55:763-72. [PMID: 22159884 PMCID: PMC3272352 DOI: 10.1007/s00125-011-2388-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Accepted: 11/07/2011] [Indexed: 10/14/2022]
Abstract
AIMS/HYPOTHESIS The carcino-embryonic antigen-related cell adhesion molecule (CEACAM)2 is produced in many feeding control centres in the brain, but not in peripheral insulin-targeted tissues. Global Ceacam2 null mutation causes insulin resistance and obesity resulting from hyperphagia and hypometabolism in female Ceacam2 homozygous null mutant mice (Cc2 [also known as Ceacam2](-/-)) mice. Because male mice are not obese, the current study examined their metabolic phenotype. METHODS The phenotype of male Cc2(-/-) mice was characterised by body fat composition, indirect calorimetry, hyperinsulinaemic-euglycaemic clamp analysis and direct recording of sympathetic nerve activity. RESULTS Despite hyperphagia, total fat mass was reduced, owing to the hypermetabolic state in male Cc2(-/-) mice. In contrast to females, male mice also exhibited insulin sensitivity with elevated β-oxidation in skeletal muscle, which is likely to offset the effects of increased food intake. Males and females had increased brown adipogenesis. However, only males had increased activation of sympathetic tone regulation of adipose tissue and increased spontaneous activity. The mechanisms underlying sexual dimorphism in energy balance with the loss of Ceacam2 remain unknown. CONCLUSIONS/INTERPRETATION These studies identified a novel role for CEACAM2 in the regulation of metabolic rate and insulin sensitivity via effects on brown adipogenesis, sympathetic nervous outflow to brown adipose tissue, spontaneous activity and energy expenditure in skeletal muscle.
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Affiliation(s)
- P. R. Patel
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - S. K. Ramakrishnan
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - M. K. Kaw
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - C. K. Raphael
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - S. Ghosh
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - J. S. Marino
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - G. Heinrich
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - S. J. Lee
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - R. E. Bourey
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Internal Medicine at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - J. W. Hill
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
| | - D. Y. Jung
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA, USA
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - D. A. Morgan
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - J. K. Kim
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA, USA
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - S. K. Rahmouni
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - S. M. Najjar
- Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Health Science Campus, 3000 Arlington Avenue, Mail Stop 1009, Toledo, OH 43614, USA,
- Department of Physiology and Pharmacology at the College of Medicine and Life Sciences, University of Toledo, Health Science Campus, Toledo, OH, USA
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Gupta S, Yan Y, Malhotra D, Liu J, Xie Z, Najjar SM, Shapiro JI. Ouabain and insulin induce sodium pump endocytosis in renal epithelium. Hypertension 2012; 59:665-72. [PMID: 22311908 DOI: 10.1161/hypertensionaha.111.176727] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cardiotonic steroids signaling through the basolateral sodium pump (Na/K-ATPase) have been shown to alter renal salt handling in intact animals. Because the relationship between renal salt handling and blood pressure is a key determinant of hypertension, and patients with insulin resistance are frequently hypertensive, we chose to examine whether there might be competition for resources necessary for receptor-mediated endocytosis. In LLC-PK1 cells, the Na/K-ATPase-α1 and carcinoembryonic antigen cell adhesion molecule 1, a plasma membrane protein that promotes receptor-mediated endocytosis, colocalized in the plasma membranes and translocated to the intracellular region in response to ouabain. Either ouabain or insulin alone caused accumulation of and carcinoembryonic antigen cell adhesion molecule, as well as insulin receptor-β, and epidermal growth factor receptor in early endosomes, but no synergy was demonstrable. Like ouabain, insulin also caused c-Src activation. When caveolin or Na/K-ATPase-α1 expression was knocked down with small interfering RNA, insulin but not ouabain induced carcinoembryonic antigen cell adhesion molecule 1, insulin receptor-β, and epidermal growth factor receptor endocytosis. To determine whether this might be relevant to salt handling in vivo, we examined salt loading in mice with null renal carcinoembryonic antigen cell adhesion molecule 2 expression. The null renal carcinoembryonic antigen cell adhesion molecule 2 animals demonstrated greater increases in blood pressure with increases in dietary salt than control animals. These data demonstrate that cardiotonic steroids and insulin compete for cellular endocytosis resources and suggest that, under conditions where circulating insulin concentrations are high, cardiotonic steroid-mediated natriuresis could be impaired.
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Affiliation(s)
- Shalini Gupta
- Department of Medicine, University of Toledo College of Medicine, Toledo, OH 43614-2598, USA
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