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Svedlund Eriksson E, Johansson I, Mårtensson AKF, Lantero Rodriguez M, Schilperoort M, Kroon J, Kooijman S, Omerovic E, Andersson L, Levin MC, Rensen PCN, Tivesten Å. Castration of Male Mice Induces Metabolic Remodeling of the Heart. J Endocr Soc 2022; 6:bvac132. [PMID: 36249410 PMCID: PMC9557843 DOI: 10.1210/jendso/bvac132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Indexed: 11/19/2022] Open
Abstract
Abstract
Androgen deprivation therapy of prostate cancer, which suppresses serum testosterone to castrate levels, is associated with increased risk of heart failure. Here we tested the hypothesis that castration alters cardiac energy substrate uptake, which is tightly coupled to the regulation of cardiac structure and function. Short-term (3-4 weeks) surgical castration of male mice reduced the relative heart weight. While castration did not affect cardiac function in unstressed conditions, we observed reductions in heart rate, stroke volume, cardiac output and cardiac index during pharmacological stress with dobutamine in castrated versus sham-operated mice. Experiments using radiolabeled lipoproteins and glucose showed that castration shifted energy substrate uptake in the heart from lipids towards glucose, while testosterone replacement had the opposite effect. There was increased expression of fetal genes in the heart of castrated mice, including a strong increase in mRNA and protein levels of β-myosin heavy chain (MHC), the fetal isoform of MHC. In conclusion, castration of male mice induces metabolic remodeling and expression of the fetal gene program in the heart, in association with a reduced cardiac performance during pharmacological stress. These findings may be relevant for the selection of treatment strategies for heart failure in the setting of testosterone deficiency.
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Affiliation(s)
- Elin Svedlund Eriksson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Inger Johansson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Anna K F Mårtensson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Marta Lantero Rodriguez
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Maaike Schilperoort
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center , Leiden , The Netherlands
| | - Jan Kroon
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center , Leiden , The Netherlands
| | - Sander Kooijman
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center , Leiden , The Netherlands
| | - Elmir Omerovic
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Linda Andersson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Malin C Levin
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center , Leiden , The Netherlands
| | - Åsa Tivesten
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
- Department of Endocrinology, Sahlgrenska University Hospital, Region Västra Götaland , Gothenburg , Sweden
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Lantero Rodriguez M, Schilperoort M, Johansson I, Svedlund Eriksson E, Palsdottir V, Kroon J, Henricsson M, Kooijman S, Ericson M, Borén J, Ohlsson C, Jansson JO, Levin MC, Rensen PCN, Tivesten Å. Testosterone reduces metabolic brown fat activity in male mice. J Endocrinol 2021; 251:83-96. [PMID: 34370693 DOI: 10.1530/joe-20-0263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/06/2021] [Indexed: 11/08/2022]
Abstract
Brown adipose tissue (BAT) burns substantial amounts of mainly lipids to produce heat. Some studies indicate that BAT activity and core body temperature are lower in males than females. Here we investigated the role of testosterone and its receptor (the androgen receptor; AR) in metabolic BAT activity in male mice. Castration, which renders mice testosterone deficient, slightly promoted the expression of thermogenic markers in BAT, decreased BAT lipid content, and increased basal lipolysis in isolated brown adipocytes. Further, castration increased the core body temperature. Triglyceride-derived fatty acid uptake, a proxy for metabolic BAT activity in vivo, was strongly increased in BAT from castrated mice (4.5-fold increase vs sham-castrated mice) and testosterone replacement reversed the castration-induced increase in metabolic BAT activity. BAT-specific AR deficiency did not mimic the castration effects in vivo and AR agonist treatment did not diminish the activity of cultured brown adipocytes in vitro, suggesting that androgens do not modulate BAT activity via a direct, AR-mediated pathway. In conclusion, testosterone is a negative regulator of metabolic BAT activity in male mice. Our findings provide new insight into the metabolic actions of testosterone.
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Affiliation(s)
- Marta Lantero Rodriguez
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maaike Schilperoort
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Inger Johansson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Elin Svedlund Eriksson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Vilborg Palsdottir
- Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Kroon
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Marcus Henricsson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Sander Kooijman
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Mia Ericson
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Borén
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Center for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - John-Olov Jansson
- Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Malin C Levin
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Åsa Tivesten
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Wilhelmson AS, Lantero Rodriguez M, Johansson I, Svedlund Eriksson E, Stubelius A, Lindgren S, Fagman JB, Fink PJ, Carlsten H, Ekwall O, Tivesten Å. Androgen Receptors in Epithelial Cells Regulate Thymopoiesis and Recent Thymic Emigrants in Male Mice. Front Immunol 2020; 11:1342. [PMID: 32714327 PMCID: PMC7344216 DOI: 10.3389/fimmu.2020.01342] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 05/26/2020] [Indexed: 01/14/2023] Open
Abstract
Androgens have profound effects on T cell homeostasis, including regulation of thymic T lymphopoiesis (thymopoiesis) and production of recent thymic emigrants (RTEs), i. e., immature T cells that derive from the thymus and continue their maturation to mature naïve T cells in secondary lymphoid organs. Here we investigated the androgen target cell for effects on thymopoiesis and RTEs in spleen and lymph nodes. Male mice with a general androgen receptor knockout (G-ARKO), T cell-specific (T-ARKO), or epithelial cell-specific (E-ARKO) knockout were examined. G-ARKO mice showed increased thymus weight and increased numbers of thymic T cell progenitors. These effects were not T cell-intrinsic, since T-ARKO mice displayed unaltered thymus weight and thymopoiesis. In line with a role for thymic epithelial cells (TECs), E-ARKO mice showed increased thymus weight and numbers of thymic T cell progenitors. Further, E-ARKO mice had more CD4+ and CD8+ T cells in spleen and an increased frequency of RTEs among T cells in spleen and lymph nodes. Depletion of the androgen receptor in epithelial cells was also associated with a small shift in the relative number of cortical (reduced) and medullary (increased) TECs and increased CCL25 staining in the thymic medulla, similar to previous observations in castrated mice. In conclusion, we demonstrate that the thymic epithelium is a target compartment for androgen-mediated regulation of thymopoiesis and consequently the generation of RTEs.
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Affiliation(s)
- Anna S. Wilhelmson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Marta Lantero Rodriguez
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Inger Johansson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Elin Svedlund Eriksson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Alexandra Stubelius
- Center for Bone and Arthritis Research (CBAR), Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Susanne Lindgren
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Johan Bourghardt Fagman
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Pamela J. Fink
- Department of Immunology, University of Washington, Seattle, WA, United States
| | - Hans Carlsten
- Center for Bone and Arthritis Research (CBAR), Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Olov Ekwall
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Åsa Tivesten
- Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
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Wilhelmson AS, Lantero Rodriguez M, Svedlund Eriksson E, Johansson I, Fogelstrand P, Stubelius A, Lindgren S, Fagman JB, Hansson GK, Carlsten H, Karlsson MCI, Ekwall O, Tivesten Å. Testosterone Protects Against Atherosclerosis in Male Mice by Targeting Thymic Epithelial Cells-Brief Report. Arterioscler Thromb Vasc Biol 2018; 38:1519-1527. [PMID: 29853568 PMCID: PMC6039408 DOI: 10.1161/atvbaha.118.311252] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/16/2018] [Indexed: 02/07/2023]
Abstract
Supplemental Digital Content is available in the text. Objective— Androgen deprivation therapy has been associated with increased cardiovascular risk in men. Experimental studies support that testosterone protects against atherosclerosis, but the target cell remains unclear. T cells are important modulators of atherosclerosis, and deficiency of testosterone or its receptor, the AR (androgen receptor), induces a prominent increase in thymus size. Here, we tested the hypothesis that atherosclerosis induced by testosterone deficiency in male mice is T-cell dependent. Further, given the important role of the thymic epithelium for T-cell homeostasis and development, we hypothesized that depletion of the AR in thymic epithelial cells will result in increased atherosclerosis. Approach and Results— Prepubertal castration of male atherosclerosis-prone apoE−/− mice increased atherosclerotic lesion area. Depletion of T cells using an anti-CD3 antibody abolished castration-induced atherogenesis, demonstrating a role of T cells. Male mice with depletion of the AR specifically in epithelial cells (E-ARKO [epithelial cell-specific AR knockout] mice) showed increased thymus weight, comparable with that of castrated mice. E-ARKO mice on an apoE−/− background displayed significantly increased atherosclerosis and increased infiltration of T cells in the vascular adventitia, supporting a T-cell–driven mechanism. Consistent with a role of the thymus, E-ARKO apoE−/− males subjected to prepubertal thymectomy showed no atherosclerosis phenotype. Conclusions— We show that atherogenesis induced by testosterone/AR deficiency is thymus- and T-cell dependent in male mice and that the thymic epithelial cell is a likely target cell for the antiatherogenic actions of testosterone. These insights may pave the way for new therapeutic strategies for safer endocrine treatment of prostate cancer.
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Affiliation(s)
- Anna S Wilhelmson
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Marta Lantero Rodriguez
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Elin Svedlund Eriksson
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Inger Johansson
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Per Fogelstrand
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Alexandra Stubelius
- Center for Bone and Arthritis Research, Institute of Medicine (A.S., H.C.).,Department of Rheumatology and Inflammation Research, Institute of Medicine (A.S., S.L., H.C., O.E.)
| | - Susanne Lindgren
- Department of Rheumatology and Inflammation Research, Institute of Medicine (A.S., S.L., H.C., O.E.).,Department of Pediatrics, Institute of Clinical Sciences (S.L., O.E.), University of Gothenburg, Sweden
| | - Johan B Fagman
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
| | - Göran K Hansson
- Department of Medicine, Center for Molecular Medicine (G.K.H.)
| | - Hans Carlsten
- Center for Bone and Arthritis Research, Institute of Medicine (A.S., H.C.).,Department of Rheumatology and Inflammation Research, Institute of Medicine (A.S., S.L., H.C., O.E.)
| | - Mikael C I Karlsson
- Department of Microbiology, Tumor, and Cell Biology (M.C.I.K.), Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Olov Ekwall
- Department of Rheumatology and Inflammation Research, Institute of Medicine (A.S., S.L., H.C., O.E.).,Department of Pediatrics, Institute of Clinical Sciences (S.L., O.E.), University of Gothenburg, Sweden
| | - Åsa Tivesten
- From the Wallenberg Laboratory for Cardiovascular and Metabolic Research, Institute of Medicine (A.S.W., M.L.R., E.S.E., I.J., P.F., J.B.F., A.T.)
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Wilhelmson AS, Fagman JB, Johansson I, Zou ZV, Andersson AG, Svedlund Eriksson E, Johansson ME, Lindahl P, Fogelstrand P, Tivesten Å. Increased Intimal Hyperplasia After Vascular Injury in Male Androgen Receptor-Deficient Mice. Endocrinology 2016; 157:3915-3923. [PMID: 27533884 DOI: 10.1210/en.2016-1100] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intimal hyperplasia is a vascular pathological process involved in the pathogenesis of atherosclerosis. Data suggest that T, the most important sex steroid hormone in males, protects men from atherosclerotic cardiovascular disease. T mainly acts via the androgen receptor (AR), and in this study we evaluated formation of intimal hyperplasia in male AR knockout (ARKO) mice using a vascular injury model. Two weeks after ligation of the carotid artery, male ARKO mice showed increased intimal area and intimal thickness compared with controls. After endothelial denudation by an in vivo scraping injury, there was no difference in the reendothelialization in ARKO compared with control mice. Ex vivo, we observed increased outgrowth of vascular smooth muscle cells from ARKO compared with control aortic tissue explants; the number of outgrown cells was almost doubled in ARKO. In vitro, stimulation of human aortic vascular smooth muscle cells with a physiological T concentration inhibited both migration and proliferation of the cells. Analyzing the expression of central regulators of cell proliferation and migration, we found that mRNA and protein levels of p27 were lower in uninjured arteries from ARKO mice and that T replacement to castrated male mice increased p27 mRNA in an AR-dependent manner. In conclusion, AR deficiency in male mice increases intimal hyperplasia in response to vascular injury, potentially related to the effects of androgens/AR to inhibit proliferation and migration of smooth muscle cells.
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Affiliation(s)
- Anna S Wilhelmson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Johan B Fagman
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Inger Johansson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Zhiyuan V Zou
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Axel G Andersson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Elin Svedlund Eriksson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Maria E Johansson
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Per Lindahl
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Per Fogelstrand
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Åsa Tivesten
- Wallenberg Laboratory for Cardiovascular and Metabolic Research (A.S.W., J.B.F., I.J., Z.V.Z., A.G.A., E.S.E., P.L., P.F., Å.T.), Institute of Medicine; Sahlgrenska Cancer Center (J.B.F.), Department of Surgery, Institute of Clinical Sciences; and Department of Physiology (M.E.J.), Institute of Neuroscience and Physiology; Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; The Finsen Laboratory (A.S.W), Rigshospitalet, Faculty of Health Sciences, Biotech Research and Innovation Centre, Danish Stem Cell Centre (DanStem), Faculty of Health Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
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Kastrup JS, Eriksson ES, Dalbøge H, Flodgaard H. X-ray structure of the 154-amino-acid form of recombinant human basic fibroblast growth factor. comparison with the truncated 146-amino-acid form. Acta Crystallogr D Biol Crystallogr 2005; 53:160-8. [PMID: 15299950 DOI: 10.1107/s0907444996012711] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The crystal structure of the 154-amino-acid form of human basic fibroblast growth factor (hbFGF154), probably representing the intact form of hbFGF as deduced from the open reading frame of hbFGF cDNA, was determined by X-ray crystallography and refined to a crystallographic residual of 19.0% for all data between 20.0 and 2.0 A resolution. Crystals were obtained from recombinant hbFGF154 expressed in E. coli. hbFGF154 has the same overall structure as the N-terminus truncated 146-amino-acid form. The structure has a Kunitz-type fold and is built of 12 beta-strands of which six antiparallel strands form a beta-sheet barrel. In the structure it was possible to locate two additional residues at the N terminus and the last three C-terminal amino-acid residues, which seem to be disordered in all but one of the reported structures of the truncated form of hbFGF. The C-terminal amino-acid residues are part of the last beta-strand through the formation of a hydrogen bond between the main-chain amide group of Ala152 and the carbonyl O atom of Pro28. An apparent phosphate ion is bound within the basic region on the surface of the molecule and has as ligands the side chains of Asn35, Arg128 and Lys133 and two water molecules. A slightly different hydrogen-bonding pattern to the phosphate ion is observed as compared with the sulfate ions in the truncated forms [Eriksson, Cousens & Matthews (1993). Protein Sci. 2, 1274-1284; Zhang, Cousens, Barr & Sprang (1991). Proc. Natl Acad. Sci. USA, 88, 3446-3450]. One molecule of beta-mercaptoethanol forms a disulfide bridge to Cys77.
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Affiliation(s)
- J S Kastrup
- PharmaBiotec Research Center, Department of Medicinal Chemistry, Royal Danish School of Pharmacy, Copenhagen, Denmark
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