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Guo C, Zhang G, Wu C, Lei Y, Wang Y, Yang J. Emerging trends in small molecule inhibitors targeting aldosterone synthase: A new paradigm in cardiovascular disease treatment. Eur J Med Chem 2024; 274:116521. [PMID: 38820853 DOI: 10.1016/j.ejmech.2024.116521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/01/2024] [Accepted: 05/19/2024] [Indexed: 06/02/2024]
Abstract
Aldosterone synthase (CYP11B2) is the rate-limiting enzyme in aldosterone production. In recent years, CYP11B2 has become an appealing target for treating conditions associated with excess aldosterone, such as hypertension, heart failure, and cardiometabolic diseases. Several small-molecule inhibitors of CYP11B2 have demonstrated efficacy in both preclinical studies and clinical trials. Among them, the tetrahydroisoquinoline derivative Baxdrostat has entered clinical trial phases and demonstrated efficacy in treating patients with hypertension. However, the high homology (>93 %) between CYP11B2 and steroid-11β-hydroxylase (CYP11B1), which catalyzes cortisol production, implies that insufficient drug specificity can lead to severe side effects. Developing selective inhibitors for CYP11B2 remains a considerable challenge that requires ongoing attention. This review summarizes recent research progress on small-molecule inhibitors targeting CYP11B2, focusing on structure-activity relationships (SAR) and structural optimization. It discusses strategies for enhancing the specificity and inhibitory activity of inhibitors, while also exploring potential applications and future prospects for CYP11B2 inhibitors, providing a theoretical foundation for developing the new generation of CYP11B2-targeted medications.
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Affiliation(s)
- Cuiyu Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Guangbing Zhang
- Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chengyong Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yi Lei
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, General Practice Research Institute, West China Hospital, Sichuan University, China.
| | - Yuxi Wang
- Department of Pulmonary and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Jinliang Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, Sichuan, China; Research Unit of Gene and Immunotherapy, Chinese Academy of Medical Sciences, Chengdu, 610041, Sichuan, China.
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Hossam Abdelmonem B, Abdelaal NM, Anwer EKE, Rashwan AA, Hussein MA, Ahmed YF, Khashana R, Hanna MM, Abdelnaser A. Decoding the Role of CYP450 Enzymes in Metabolism and Disease: A Comprehensive Review. Biomedicines 2024; 12:1467. [PMID: 39062040 PMCID: PMC11275228 DOI: 10.3390/biomedicines12071467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 07/28/2024] Open
Abstract
Cytochrome P450 (CYP450) is a group of enzymes that play an essential role in Phase I metabolism, with 57 functional genes classified into 18 families in the human genome, of which the CYP1, CYP2, and CYP3 families are prominent. Beyond drug metabolism, CYP enzymes metabolize endogenous compounds such as lipids, proteins, and hormones to maintain physiological homeostasis. Thus, dysregulation of CYP450 enzymes can lead to different endocrine disorders. Moreover, CYP450 enzymes significantly contribute to fatty acid metabolism, cholesterol synthesis, and bile acid biosynthesis, impacting cellular physiology and disease pathogenesis. Their diverse functions emphasize their therapeutic potential in managing hypercholesterolemia and neurodegenerative diseases. Additionally, CYP450 enzymes are implicated in the onset and development of illnesses such as cancer, influencing chemotherapy outcomes. Assessment of CYP450 enzyme expression and activity aids in evaluating liver health state and differentiating between liver diseases, guiding therapeutic decisions, and optimizing drug efficacy. Understanding the roles of CYP450 enzymes and the clinical effect of their genetic polymorphisms is crucial for developing personalized therapeutic strategies and enhancing drug responses in diverse patient populations.
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Affiliation(s)
- Basma Hossam Abdelmonem
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
- Department of Microbiology and Immunology, Faculty of Pharmacy, October University for Modern Sciences & Arts (MSA), Giza 12451, Egypt
| | - Noha M. Abdelaal
- Biotechnology Graduate Program, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (N.M.A.); (E.K.E.A.); (A.A.R.)
| | - Eman K. E. Anwer
- Biotechnology Graduate Program, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (N.M.A.); (E.K.E.A.); (A.A.R.)
- Department of Microbiology and Immunology, Faculty of Pharmacy, Modern University for Technology and Information, Cairo 4411601, Egypt
| | - Alaa A. Rashwan
- Biotechnology Graduate Program, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (N.M.A.); (E.K.E.A.); (A.A.R.)
| | - Mohamed Ali Hussein
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
| | - Yasmin F. Ahmed
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
| | - Rana Khashana
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
| | - Mireille M. Hanna
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
| | - Anwar Abdelnaser
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt; (B.H.A.); (M.A.H.); (Y.F.A.); (R.K.); (M.M.H.)
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Valentín-Goyco J, Im SC, Auchus RJ. Kinetics of Intermediate Release Enhances P450 11B2-Catalyzed Aldosterone Synthesis. Biochemistry 2024; 63:1026-1037. [PMID: 38564530 PMCID: PMC11259377 DOI: 10.1021/acs.biochem.3c00725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The mitochondrial enzyme cytochrome P450 11B2 (aldosterone synthase) catalyzes the 3 terminal transformations in the biosynthesis of aldosterone from 11-deoxycorticosterone (DOC): 11β-hydroxylation to corticosterone, 18-hydroxylation, and 18-oxidation. Prior studies have shown that P450 11B2 produces more aldosterone from DOC than from the intermediate corticosterone and that the reaction sequence is processive, with intermediates remaining bound to the active site between oxygenation reactions. In contrast, P450 11B1 (11β-hydroxylase), which catalyzes the terminal step in cortisol biosynthesis, shares a 93% amino acid sequence identity with P450 11B2, converts DOC to corticosterone, but cannot synthesize aldosterone from DOC. The biochemical and biophysical properties of P450 11B2, which enable its unique 18-oxygenation activity and processivity, yet are not also represented in P450 11B1, remain unknown. To understand the mechanism of aldosterone biosynthesis, we introduced point mutations at residue 320, which partially exchange the activities of P450 11B1 and P450 11B2 (V320A and A320V, respectively). We then investigated NADPH coupling efficiencies, binding kinetics and affinities, and product formation of purified P450 11B1 and P450 11B2, wild-type, and residue 320 mutations in phospholipid vesicles and nanodiscs. Coupling efficiencies for the 18-hydroxylase reaction with corticosterone as the substrate failed to correlate with aldosterone synthesis, ruling out uncoupling as a relevant mechanism. Conversely, corticosterone dissociation rates correlated inversely with aldosterone production. We conclude that intermediate dissociation kinetics, not coupling efficiency, enable P450 11B2 to synthesize aldosterone via a processive mechanism. Our kinetic data also suggest that the binding of DOC to P450 11B enzymes occurs in at least two distinct steps, favoring an induced-fit mechanism.
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Affiliation(s)
- Juan Valentín-Goyco
- Division of Metabolism, Endocrinology, & Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States
- LTC Charles S. Kettles Veterans Affairs Medical Center, 2215 Fuller Road, Ann Arbor, MI 48105, United States
| | - Sang-Choul Im
- Division of Metabolism, Endocrinology, & Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States
- LTC Charles S. Kettles Veterans Affairs Medical Center, 2215 Fuller Road, Ann Arbor, MI 48105, United States
| | - Richard J. Auchus
- Division of Metabolism, Endocrinology, & Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States
- LTC Charles S. Kettles Veterans Affairs Medical Center, 2215 Fuller Road, Ann Arbor, MI 48105, United States
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Liu H, Liu F, Wei Z, Liu P, Liu Q, Chen L, Hou X. Identification and functional characterization of compound heterozygous CYP11B1 gene mutations. Endocrine 2024; 84:253-264. [PMID: 38285409 DOI: 10.1007/s12020-023-03614-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/10/2023] [Indexed: 01/30/2024]
Abstract
PURPOSE 11β-Hydroxylase deficiency (11β-OHD) is the second leading cause of congenital adrenal hyperplasia (CAH), a rare autosomal recessive disease caused by mutations in the CYP11B1 gene. We previously reported the case of a male Chinese patient with typical 11β-OHD symptoms. Sanger sequencing revealed that the patient carried a splice-site mutation, c.595+1G>A in the CYP11B1 gene. His mother and sister harbored the heterozygous mutation, c.595+1G>A. Paradoxically, Sanger sequencing did not detect any abnormality in the CYP11B1 gene of his father and brother. Therefore, in this study, we aimed to further explore the exact genetic etiology of 11β-OHD in this pedigree and analyze the functional consequence of the c.595+1G>A mutation. METHODS Gemomic DNA was extracted from the peripheral blood leukocytes of the family members and normal control individuals, followed by quantitative real-time polymerase chain reaction (qPCR) to detect the copy number of the target CYP11B1 gene fragment. Mutation analysis was also performed via whole-exome sequencing (WES) followed by Sanger sequencing validation. In vitro minigene assay was also performed to investigate the impact of the c.595+1G>A mutation on pre-mRNA splicing. RESULTS qPCR results suggested a heterozygous deletion encompassing position c.595+1 along with flanking exonic and intronic sequences in the CYP11B1 gene of the patient and his father. WES followed by Sanger sequencing verified that the patient carried compound heterozygous mutations in the CYP11B1 gene, including a novel 2840-bp deletion (c.395+661_c.1121+180del) and c.595+1G>A, while his father carried the heterozygous c.395+661_c.1121+180del mutation. No other novel CYP11B1 mutations were found in the rest of the family members. Furthermore, minigene assay revealed that the c.595+1G>A mutation resulted in a 70-bp deletion of exon 3 in the mRNA, and this altered the reading frame at amino acid 176 and created a premature stop codon at amino acid 197. CONCLUSION We identified a novel 2840-bp-sized large deletion and confirmed that the c.595+1G>A mutation disrupts normal pre-mRNA splicing. Either mutation could significantly alter the reading frame and abolish CYP11B1 enzyme activity. Therefore, our findings widen the mutation spectrum of CYP11B1 and provide an accurate diagnosis of 11β-OHD at a molecular genetic level.
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Affiliation(s)
- He Liu
- School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, 6699 Qingdao Road, Jinan, Shandong, 250117, China
- Department of Endocrinology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
| | - Fuqiang Liu
- Department of Endocrinology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
- Institute of Endocrine and Metabolic Diseases of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
- Jinan Clinical Research Center for Endocrine and Metabolic Diseases, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
| | - Zichun Wei
- Department of Endocrinology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China
| | - Pan Liu
- Department of Endocrinology, Tai'an City Central Hospital, 29 Longtan Road, Tai'an, Shandong, 271000, China
| | - Qiao Liu
- MOE Key Laboratory of Experimental Teratology, Department of Genetics, Shandong University School of Basic Medical Sciences, 44 Wenhuaxi Road, Lixia District, Jinan, Shandong, 250012, China
| | - Li Chen
- Department of Endocrinology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Institute of Endocrine and Metabolic Diseases of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Jinan Clinical Research Center for Endocrine and Metabolic Diseases, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
| | - Xinguo Hou
- Department of Endocrinology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Institute of Endocrine and Metabolic Diseases of Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
- Jinan Clinical Research Center for Endocrine and Metabolic Diseases, 107 Wenhuaxi Road, Jinan, Shandong, 250012, China.
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Salgado Rezende de Mendonça L, Senar S, Moreira LL, Silva Júnior JA, Nader M, Campos LA, Baltatu OC. Evidence for the druggability of aldosterone targets in heart failure: A bioinformatics and data science-driven decision-making approach. Comput Biol Med 2024; 171:108124. [PMID: 38412691 DOI: 10.1016/j.compbiomed.2024.108124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Aldosterone plays a key role in the neurohormonal drive of heart failure. Systematic prioritization of drug targets using bioinformatics and database-driven decision-making can provide a competitive advantage in therapeutic R&D. This study investigated the evidence on the druggability of these aldosterone targets in heart failure. METHODS The target disease predictability of mineralocorticoid receptors (MR) and aldosterone synthase (AS) in cardiac failure was evaluated using Open Targets target-disease association scores. The Open Targets database collections were downloaded to MongoDB and queried according to the desired aggregation level, and the results were retrieved from the Europe PMC (data type: text mining), ChEMBL (data type: drugs), Open Targets Genetics Portal (data type: genetic associations), and IMPC (data type: genetic associations) databases. The target tractability of MR and AS in the cardiovascular system was investigated by computing activity scores in a curated ChEMBL database using supervised machine learning. RESULTS The medians of the association scores of the MR and AS groups were similar, indicating a comparable predictability of the target disease. The median of the MR activity scores group was significantly lower than that of AS, indicating that AS has higher target tractability than MR [Hodges-Lehmann difference 0.62 (95%CI 0.53-0.70, p < 0.0001]. The cumulative distributions of the overall multiplatform association scores of cardiac diseases with MR were considerably higher than with AS, indicating more advanced investigations on a wider range of disorders evaluated for MR (Kolmogorov-Smirnov D = 0.36, p = 0.0009). In curated ChEMBL, MR had a higher cumulative distribution of activity scores in experimental cardiovascular assays than AS (Kolmogorov-Smirnov D = 0.23, p < 0.0001). Documented clinical trials for MR in heart failures surfaced in database searches, none for AS. CONCLUSIONS Although its clinical development has lagged behind that of MR, our findings indicate that AS is a promising therapeutic target for the treatment of cardiac failure. The multiplatform-integrated identification used in this study allowed us to comprehensively explore the available scientific evidence on MR and AS for heart failure therapy.
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Affiliation(s)
- Lucas Salgado Rezende de Mendonça
- Center of Innovation, Technology, and Education (CITE) at Anhembi Morumbi University, Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
| | | | - Luana Lorena Moreira
- Center of Innovation, Technology, and Education (CITE) at Anhembi Morumbi University, Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
| | | | - Moni Nader
- College of Medicine & Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Luciana Aparecida Campos
- Center of Innovation, Technology, and Education (CITE) at Anhembi Morumbi University, Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil.
| | - Ovidiu Constantin Baltatu
- Center of Innovation, Technology, and Education (CITE) at Anhembi Morumbi University, Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil.
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Li J, Zhang F, Xu M, Qiu H, Zhou C, Li L, Qin L. Case Report: A combination of chimeric CYP11B2/CYP11B1 and a novel p.Val68Gly CYP11B1 variant causing 11β-Hydroxylase deficiency in a Chinese patient. Front Endocrinol (Lausanne) 2023; 14:1216767. [PMID: 38027139 PMCID: PMC10679387 DOI: 10.3389/fendo.2023.1216767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction 11β-Hydroxylase deficiency (11β-OHD, OMIM#202010) is the second most common form of congenital adrenal hyperplasia (CAH) caused by pathogenic variants in the CYP11B1 gene. Both single nucleotide variations (SNV)/small insertion and deletion and genomic rearrangements of CYP11B1 are important causes of 11β-OHD. Among these variant types, pathogenic CYP11B2/CYP11B1 chimeras only contribute to a minority of cases. Heterozygote cases (chimera combined with SNV) are very rare, and genetic analysis of these cases can be challenging. Case presentation We presented a suspected 11β-OHD female patient with incomplete virilization, adrenal hyperplasia, and hypokalemia hypertension. Whole exome sequencing (WES) revealed that the patient carried both a chimeric CYP11B2/CYP11B1 and a novel missense variant, NM_000497.4: c.203T>G, p.Val68Gly (chr8:143961027) in CYP11B1, which were confirmed by CNVplex and Sanger sequencing, respectively. The patient's manifestations and genetic findings confirmed the diagnosis of 11β-OHD, and oral dexamethasone was administered as a subsequent treatment. Conclusion This report showed a rare CYP11B2/CYP11B1 chimera combined with a novel missense variant in a 11β-OHD female patient. The result expands variant spectrum of CYP11B1 and suggests that both chimera and CYP11B1 variant screening should be performed simultaneously in suspected cases of 11β-OHD. To our knowledge, this is the first report about CYP11B2/CYP11B1 chimera detected by WES analysis. WES combined with CNV analysis is an efficient method in the genetic diagnosis of this rare and complex disorder.
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Affiliation(s)
- Jialin Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Fenglan Zhang
- Clincal Genomics Center, Dian Diagnostics Group Co., Ltd., Hangzhou, China
| | - Miao Xu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Hao Qiu
- Clincal Genomics Center, Dian Diagnostics Group Co., Ltd., Hangzhou, China
| | - Cheng Zhou
- Department of Urology, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Li Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Lan Qin
- Clincal Genomics Center, Dian Diagnostics Group Co., Ltd., Hangzhou, China
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Takeda Y, Demura M, Kometani M, Karashima S, Yoneda T, Takeda Y. Molecular and Epigenetic Control of Aldosterone Synthase, CYP11B2 and 11-Hydroxylase, CYP11B1. Int J Mol Sci 2023; 24:ijms24065782. [PMID: 36982850 PMCID: PMC10054571 DOI: 10.3390/ijms24065782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/15/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Aldosterone and cortisol serve important roles in the pathogenesis of cardiovascular diseases and metabolic disorders. Epigenetics is a mechanism to control enzyme expression by genes without changing the gene sequence. Steroid hormone synthase gene expression is regulated by transcription factors specific to each gene, and methylation has been reported to be involved in steroid hormone production and disease. Angiotensin II or potassium regulates the aldosterone synthase gene, CYP11B2. The adrenocorticotropic hormone controls the 11b-hydroxylase, CYP11B1. DNA methylation negatively controls the CYP11B2 and CYP11B1 expression and dynamically changes the expression responsive to continuous stimulation of the promoter gene. Hypomethylation status of the CYP11B2 promoter region is seen in aldosterone-producing adenomas. Methylation of recognition sites of transcription factors, including cyclic AMP responsive element binding protein 1 or nerve growth factor-induced clone B, diminish their DNA-binding activity. A methyl-CpG-binding protein 2 cooperates directly with the methylated CpG dinucleotides of CYP11B2. A low-salt diet, treatment with angiotensin II, and potassium increase the CYP11B2 mRNA levels and induce DNA hypomethylation in the adrenal gland. A close association between a low DNA methylation ratio and an increased CYP11B1 expression is seen in Cushing's adenoma and aldosterone-producing adenoma with autonomous cortisol secretion. Epigenetic control of CYP11B2 or CYP11B1 plays an important role in autonomic aldosterone or cortisol synthesis.
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Affiliation(s)
- Yoshimichi Takeda
- Endocrinology and Metabolism, Kanazawa University Hospital, Kanazawa 920-8641, Japan
- Department of Hygiene, Graduate School of Medical Science, Kanazawa University, Kanazawa 920-1192, Japan
| | - Masashi Demura
- Department of Hygiene, Graduate School of Medical Science, Kanazawa University, Kanazawa 920-1192, Japan
| | - Mitsuhiro Kometani
- Endocrinology and Metabolism, Kanazawa University Hospital, Kanazawa 920-8641, Japan
| | - Shigehiro Karashima
- Institute of Liberal Arts and Science, Kanazawa University, Kanazawa 920-1192, Japan
| | - Takashi Yoneda
- Institute of Liberal Arts and Science, Kanazawa University, Kanazawa 920-1192, Japan
| | - Yoshiyu Takeda
- Endocrinology and Metabolism, Kanazawa University Hospital, Kanazawa 920-8641, Japan
- Endocrine and Diabetes Center, Asanogawa General Hospital, Kanazawa 920-0811, Japan
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Loomis CL, Brixius-Anderko S, Scott EE. Redox partner adrenodoxin alters cytochrome P450 11B1 ligand binding and inhibition. J Inorg Biochem 2022; 235:111934. [PMID: 35952394 PMCID: PMC9907956 DOI: 10.1016/j.jinorgbio.2022.111934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 02/01/2023]
Abstract
Human cytochrome P450 11B1 (CYP11B1) generation of the major glucocorticoid cortisol requires two electrons delivered sequentially by the iron‑sulfur protein adrenodoxin. While the expected adrenodoxin binding site is on the opposite side of the heme and 15-20 Å away, evidence is provided that adrenodoxin allosterically impacts CYP11B1 ligand binding and catalysis. The presence of adrenodoxin both decreases the dissociation constant (Kd) for substrate binding and increases the proportion of substrate that is bound at saturation. Adrenodoxin additionally decreases the Michaelis-Menten constant for the native substrate. Similar studies with several inhibitors also demonstrate the ability of adrenodoxin to modulate inhibition (IC50 values). Somewhat similar allosterism has recently been observed for the closely related CYP11B2/aldosterone synthase, but there are several marked differences in adrenodoxin effects on the two CYP11B enzymes. Comparison of the sequences and structures of these two CYP11B enzymes helps identify regions likely responsible for the functional differences. The allosteric effects of adrenodoxin on CYP11B enzymes underscore the importance of considering P450/redox partner interactions when evaluating new inhibitors.
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Affiliation(s)
- Cara L Loomis
- Departments of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Emily E Scott
- Departments of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA; Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA; Departments of Medicinal Chemistry, Pharmacology and Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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9
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Yin L, Pan Y, Xue Y, Chen X, You T, Huang J, Xu Q, Hu Q. Design, Synthesis, and Biological Evaluations of Pyridyl 4,5,6,7-Tetrahydro-4,7-Methanobenzo[ d]isoxazoles as Potent and Selective Inhibitors of 11β-Hydroxylase. J Med Chem 2022; 65:11876-11888. [PMID: 35975976 DOI: 10.1021/acs.jmedchem.2c01037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inhibition of CYP11B1 is a promising therapy for severe diseases caused by excessive cortisol. Enantiomer discrimination provides clues to achieve selectivity that CYP11B1 and homologous CYP11B2 were selectively bound by S- and R-fadrozole, respectively, in distinct binding modes. Pyridyl 4,5,6,7-tetrahydro-4,7-methanobenzo[d]isoxazoles showing a similar binding mode to S-fadrozole in CYP11B1 were designed as potent and selective CYP11B1 inhibitors. Compound 7aa exhibited a highly potent CYP11B1 inhibition similar to that of the drug osilodrostat (IC50's of 9 and 6 nM, respectively) but was 1500-fold more selective over CYP11B2 compared to osilodrostat (selectivity factors of 125 versus 0.08, respectively). Strong reductions of plasma cortisol concentrations by compound 7aa were demonstrated in rats without interference in aldosterone production after oral application. It showed no inhibition against a panel of steroidogenic and hepatic CYP enzymes. Exhibiting a good pharmacokinetic profile, compound 7aa was considered as a drug candidate for further development.
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Affiliation(s)
- Lina Yin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Youtian Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Yuanyuan Xue
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Xiaoli Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Taiyun You
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Jiahui Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Qihao Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
| | - Qingzhong Hu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 East Waihuan Road, 510006 Panyu, Guangzhou, P. R. China
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10
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Wang XX, Ke X, Liu ZQ, Zheng YG. Rational development of mycobacteria cell factory for advancing the steroid biomanufacturing. World J Microbiol Biotechnol 2022; 38:191. [PMID: 35974205 PMCID: PMC9381402 DOI: 10.1007/s11274-022-03369-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/28/2022] [Indexed: 12/05/2022]
Abstract
Steroidal resource occupies a vital proportion in the pharmaceutical industry attributing to their important therapeutic effects on fertility, anti-inflammatory and antiviral activities. Currently, microbial transformation from phytosterol has become the dominant strategy of steroidal drug intermediate synthesis that bypasses the traditional chemical route. Mycobacterium sp. serve as the main industrial microbial strains that are capable of introducing selective functional modifications of steroidal intermediate, which has become an indispensable platform for steroid biomanufacturing. By reviewing the progress in past two decades, the present paper concentrates mainly on the microbial rational modification aspects that include metabolic pathway editing, key enzymes engineering, material transport pathway reinforcement, toxic metabolic intermediates removal and byproduct reconciliation. In addition, progress on omics analysis and direct genetic manipulation are summarized and classified that may help reform the industrial hosts with more efficiency. The paper provides an insightful present for steroid biomanufacturing especially on the current trends and prospects of mycobacteria.
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Affiliation(s)
- Xin-Xin Wang
- National and Local Joint Engineering Research Center for Biomanufacturing of Choral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Xia Ke
- National and Local Joint Engineering Research Center for Biomanufacturing of Choral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Zhi-Qiang Liu
- National and Local Joint Engineering Research Center for Biomanufacturing of Choral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China. .,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
| | - Yu-Guo Zheng
- National and Local Joint Engineering Research Center for Biomanufacturing of Choral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
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11
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Wang X, Meng W, Qi X, Li Y, Li J, Lyu L, Li J, Yao Y, Yan S, Zuo C, Xie S, Wen H. Molecular characterization and expression patterns of glucocorticoid receptors in the viviparous black rockfish Sebastes schlegelii. Gen Comp Endocrinol 2022; 316:113947. [PMID: 34848189 DOI: 10.1016/j.ygcen.2021.113947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 11/08/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022]
Abstract
Glucocorticoid receptors (GRs) are ligand-activated transcription factors associated with anti-inflammation, stress, metabolism and gonadal development. In this study, two gr genes (gr1 and gr2) were cloned and analyzed from a viviparous teleost, black rockfish (Sebastes schlegelii). The phylogenetic analysis of GRs showed that GR1 and GR2 clustered into teleost GR1 and GR2 separately and differed from the GRs of tetrapods or basal ray-finned fishes. Black rockfish GRs possess four modular domains of the nuclear receptor superfamily: an N-terminal domain (NTD), a DNA-binding domain (DBD), a hinge region (HR) and a ligand-binding domain (LBD). Nine conserved amino acid inserts were found in the GR1 DBD, and the ligand cavity-related amino acids of GR1 and GR2 LBD were slightly different. Tissue distribution analysis revealed that grs was widely expressed in various tissues, while cyp11b was mainly expressed in the testis and head kidney. The cyp11b transcripts were localized in the interrenal glands of the head kidney, the main source of cortisol; grs transcripts were detected in oocytes, the follicle layer and the ovarian wall. Histologically, significant blood vessel dilation was observed in the fetal membrane during or after parturition of black rockfish. The highest levels of serum cortisol and ovarian cyp11b mRNA were detected in parturition. In addition, the relative expression level of gr1 was upregulated significantly after delivery, while the levels of gr2 showed no significant change. In addition, in vitro GC treatment inhibited the expression of il1b but significantly upregulated the transcription of il1r1. These data provide evidence that GRs are likely to work as anti-inflammatory factors by inhibiting the functions of pro-inflammatory factors in the parturition of black rockfish.
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Affiliation(s)
- Xiaojie Wang
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Wei Meng
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Xin Qi
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Yun Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Jifang Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Likang Lyu
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Jianshuang Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Yijia Yao
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Shaojing Yan
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Chenpeng Zuo
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Songyang Xie
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Haishen Wen
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao 266003, PR China.
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12
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Liu W, Li Z, Chu S, Ma X, Wang X, Jiang M, Bai G. Atractylenolide-I covalently binds to CYP11B2, selectively inhibits aldosterone synthesis, and improves hyperaldosteronism. Acta Pharm Sin B 2022; 12:135-148. [PMID: 35127376 PMCID: PMC8799885 DOI: 10.1016/j.apsb.2021.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/10/2021] [Accepted: 08/31/2021] [Indexed: 01/13/2023] Open
Abstract
Hyperaldosteronism is a common disease that is closely related to endocrine hypertension and other cardiovascular diseases. Cytochrome P450 11B2 (CYP11B2), an important enzyme in aldosterone (ALD) synthesis, is a promising target for the treatment of hyperaldosteronism. However, selective inhibitors targeting CYP11B2 are still lacking due to the high similarity with CYP11B1. In this study, atractylenolide-I (AT-I) was found to significantly reduce the production of ALD but had no effect on cortisol synthesis, which is catalyzed by CYP11B1. Chemical biology studies revealed that due to the presence of Ala320, AT-I is selectively bound to the catalytic pocket of CYP11B2, and the C8/C9 double bond of AT-I can be epoxidized, which then undergoes nucleophilic addition with the sulfhydryl group of Cys450 in CYP11B2. The covalent binding of AT-I disrupts the interaction between heme and CYP11B2 and inactivates CYP11B2, leading to the suppression of ALD synthesis; AT-I shows a significant therapeutic effect for improving hyperaldosteronism.
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Affiliation(s)
- Wenjuan Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Zhenqiang Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Simeng Chu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Xiaoyao Ma
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
| | - Xiaoying Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Min Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
- Corresponding authors. Tel./fax: +86 22 23506930.
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, China
- Corresponding authors. Tel./fax: +86 22 23506930.
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13
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Brixius-Anderko S, Scott EE. Aldosterone Synthase Structure With Cushing Disease Drug LCI699 Highlights Avenues for Selective CYP11B Drug Design. Hypertension 2021; 78:751-759. [PMID: 34247511 DOI: 10.1161/hypertensionaha.121.17615] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
| | - Emily E Scott
- Departments of Medicinal Chemistry (S.B.-A., E.E.S.), University of Michigan, Ann Arbor.,Pharmacology (E.E.S.), University of Michigan, Ann Arbor
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14
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Sun M, Jiang S, Song W, Qu J, Qi J. Molecular characterization and functional analysis of cyp11a and cyp11b in black rockfish (Sebastes schlegelii). JOURNAL OF FISH BIOLOGY 2021; 99:9-17. [PMID: 33252824 DOI: 10.1111/jfb.14631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/12/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
The cyp11 includes cyp11a and cyp11b in most mammals and teleosts, encoded cholesterol side chain lyase and 11β-hydroxylase, respectively. It is essential in steroid hormone synthesis. However, studies on the regulation of cyp11 are limited, especially in teleosts. In this study, the molecular characterization and function of cyp11a and cyp11b of black rockfish was investigated. Both of them showed high homology with other teleost counterparts by phylogenetic analysis. The expression of cyp11a and cyp11b exhibited a clear sexually dimorphic pattern, with a higher expression level in testis than that of in ovaries. During the different developmental stages (40 dpf, 80 dpf, 190 dpf, 360 dpf, 720 dpf), the expression of cyp11a was earlier than cyp11b. In situ hybridization results showed that cyp11a and cyp11b were mainly expressed in oogonia and oocytes of the ovary. They were located in spermatogonia and interstitial compartment in the 1.5-year-old gonads, and spermatocytesgonia and the peritubular myoid cell of the testis in the 2.5-year-old gonads. To explore the distinct roles of cyp11a and cyp11b in gonads, oestrogen and androgens were used to stimulate the primary testicular and ovarian cells. The expressions of cyp11a and cyp11b were tested under different dose of 17α-methyltestosterone (17α-MT) and 17β-estradiol (E2). The results showed cyp11a was significantly increased at 10-6 mol ml-1 of 17α-MT and 10-8 mol ml-1 of E2 in ovary and 10-10 mol ml-1 of 17α-MT and E2 in testis, while cyp11b was significantly decreased after 17α-MT and E2 treatment. These results indicated that cyp11a and cyp11b were likely to have different functions, and also implied they might play an important roles in the differentiation of gonads and the synthesis of steroids in black rockfish.
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Affiliation(s)
- Minmin Sun
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Shipeng Jiang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Weihao Song
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jiangbo Qu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jie Qi
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratary of Tropical Marine Germplasm Resoures and Breeding Engineering, Sanya Oceanographic Institution, Ocean University of China, Sanya, China
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15
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Bernhardt R, Neunzig J. Underestimated reactions and regulation patterns of adrenal cytochromes P450. Mol Cell Endocrinol 2021; 530:111237. [PMID: 33722664 DOI: 10.1016/j.mce.2021.111237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/18/2021] [Accepted: 02/27/2021] [Indexed: 11/20/2022]
Abstract
Although cytochrome P450 (CYP) systems including the adrenal ones are being investigated since many years, there are still reactions and regulation patterns that have been underestimated ever since. This review discusses neglected ones to bring them into the focus of investigators working in the field. Novel substrates and reactions described for adrenal CYPs recently point to the fact that different from what has been believed for many years, adrenal CYPs are less selective than previously thought. The conversion of steroid sulfates, intermediates of steroid biosynthesis as well as of exogenous compounds are being discussed here in more detail and consequences for further studies are drawn. Furthermore, it was shown that protein-protein interactions may have an important effect not only on the activity of adrenal CYPs, but also on the product pattern of the reactions. It was found that, as expected, the stoichiometry of CYP:redox partner plays an important role for tuning the activity. In addition, competition between different CYPs for the redox partner and for electrons and possible alterations by mutants in the efficiency of electron transfer play an important role for the activity and product pattern. Moreover, the influence of phosphorylation and small charged molecules like natural polyamines on the activity of adrenal systems has been demonstrated in-vitro indicating a possible regulation of adrenal CYP reactions by affecting redox partner recognition and binding affinity. Finally, an effect of the genetic background on the consequences of mutations in adrenal CYPs found in patients was suggested from corresponding in-vitro studies indicating that a different genetic background might be able to significantly affect the activity of a CYP mutant.
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Affiliation(s)
- Rita Bernhardt
- Department of Biochemistry, Campus B2.2, Saarland University, D-66123, Saarbrücken, Germany.
| | - Jens Neunzig
- Institute of Molecular Plant Biology, Campus A2.4, Saarland University, D-66123, Saarbrücken, Germany
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16
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Hartz P, Strohmaier SJ, El-Gayar BM, Abdulmughni A, Hutter MC, Hannemann F, Gillam EMJ, Bernhardt R. Resurrection and characterization of ancestral CYP11A1 enzymes. FEBS J 2021; 288:6510-6527. [PMID: 34092040 DOI: 10.1111/febs.16054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/22/2021] [Accepted: 06/04/2021] [Indexed: 01/16/2023]
Abstract
Mitochondrial cytochromes P450 presumably originated from a common microsomal P450 ancestor. However, it is still unknown how ancient mitochondrial P450s were able to retain their oxygenase function following relocation to the mitochondrial matrix and later emerged as enzymes specialized for steroid hormone biosynthesis in vertebrates. Here, we used the approach of ancestral sequence reconstruction (ASR) to resurrect ancient CYP11A1 enzymes and characterize their unique biochemical properties. Two ancestral CYP11A1 variants, CYP11A_Mammal_N101 and CYP11A_N1, as well as an extant bovine form were recombinantly expressed and purified to homogeneity. All enzymes showed characteristic P450 spectral properties and were able to convert cholesterol as well as other sterol substrates to pregnenolone, yet with different specificities. The vertebrate CYP11A_N1 ancestor preferred the cholesterol precursor, desmosterol, as substrate suggesting a convergent evolution of early cholesterol metabolism and CYP11A1 enzymes. Both ancestors were able to withstand increased levels of hydrogen peroxide but only the ancestor CYP11A_N1 showed increased thermostability (~ 25 °C increase in T50 ) compared with the extant CYP11A1. The extraordinary robustness of ancient mitochondrial P450s, as demonstrated for CYP11A_N1, may have allowed them to stay active when presented with poorly compatible electron transfer proteins and resulting harmful ROS in the new environment of the mitochondrial matrix. To the best of our knowledge, this work represents the first study that describes the resurrection of ancient mitochondrial P450 enzymes. The results will help to understand and gain fundamental functional insights into the evolutionary origins of steroid hormone biosynthesis in animals.
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Affiliation(s)
- Philip Hartz
- Department of Biochemistry, Saarland University, Saarbrücken, Germany
| | - Silja J Strohmaier
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Australia
| | - Basma M El-Gayar
- Department of Biochemistry, Saarland University, Saarbrücken, Germany
| | - Ammar Abdulmughni
- Department of Biochemistry, Saarland University, Saarbrücken, Germany
| | - Michael C Hutter
- Center for Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Frank Hannemann
- Department of Biochemistry, Saarland University, Saarbrücken, Germany
| | - Elizabeth M J Gillam
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Australia
| | - Rita Bernhardt
- Department of Biochemistry, Saarland University, Saarbrücken, Germany
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17
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Yazawa T, Sato T, Nemoto T, Nagata S, Imamichi Y, Kitano T, Sekiguchi T, Uwada J, Islam MS, Mikami D, Nakajima I, Takahashi S, Khan MRI, Suzuki N, Umezawa A, Ida T. 11-Ketotestosterone is a major androgen produced in porcine adrenal glands and testes. J Steroid Biochem Mol Biol 2021; 210:105847. [PMID: 33609691 DOI: 10.1016/j.jsbmb.2021.105847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022]
Abstract
Porcine steroid hormone profiles have some unique characteristics. We previously studied human and murine steroidogenesis using steroidogenic cells-derived from mesenchymal stem cells (MSCs). To investigate porcine steroidogenesis, we induced steroidogenic cells from porcine subcutaneous preadipocytes (PSPA cells), which originate from MSCs. Using cAMP, adenovirus-mediated introduction of steroidogenic factor-1 (SF-1)/adrenal 4-binding protein (Ad4BP) induced the differentiation of PSPA cells into sex steroid-producing cells. Introducing SF-1/Ad4BP also induced the aldo-keto reductase 1C1 (AKR1C1) gene. Porcine AKR1C1 had 17β-hydroxysteroid dehydrogenase activity, which converts androstenedione and 11-ketoandrostenedione into testosterone (T) and 11-ketotestosteorne (11KT). Furthermore, differentiated cells expressed hydroxysteroid 11β-dehydrogenase 2 (HSD11B2) and produced 11KT. HSD11B2 was expressed in testicular Leydig cells and the adrenal cortex. 11KT was present in the plasma of both immature male and female pigs, with slightly higher levels in the male pigs. T levels were much higher in the male pigs. It is noteworthy that in the female pigs, the 11KT levels were >10-fold higher than the T levels. However, castration altered the 11KT and T plasma profiles in the male pigs to near those of the females. 11KT induced endothelial nitric oxide synthase (eNOS) in porcine vascular endothelial cells. These results indicate that 11KT is produced in porcine adrenal glands and testes, and may regulate cardiovascular functions through eNOS expression.
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Affiliation(s)
- Takashi Yazawa
- Department of Biochemistry, Asahikawa Medical University, Hokkaido 078-8510, Japan.
| | - Takahiro Sato
- Division of Molecular Genetics, Institute of Life Sciences, Kurume University, Fukuoka 830-0011, Japan
| | - Takahiro Nemoto
- Department of Physiology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Sayaka Nagata
- Circulatory and Body Fluid Regulation, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Yoshitaka Imamichi
- Department of Pharmacology, Asahikawa Medical University, Hokkaido 078-8510, Japan
| | - Takeshi Kitano
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
| | - Toshio Sekiguchi
- Noto Marine Laboratory, Division of Marine Environmental Studies, Institute of Nature and Environmental Technology, Kanazawa University, Ishikawa 927-0553, Japan
| | - Junsuke Uwada
- Department of Biochemistry, Asahikawa Medical University, Hokkaido 078-8510, Japan
| | | | - Daisuke Mikami
- Department of Nephrology, University of Fukui, Fukui 910-1193, Japan
| | - Ikuyo Nakajima
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Ibaraki 305-0901, Japan
| | - Satoru Takahashi
- Department of Pediatrics, Asahikawa Medical University, Hokkaido 078-8510, Japan
| | - Md Rafiqul Islam Khan
- Department of Biochemistry, Asahikawa Medical University, Hokkaido 078-8510, Japan; Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
| | - Nobuo Suzuki
- Noto Marine Laboratory, Division of Marine Environmental Studies, Institute of Nature and Environmental Technology, Kanazawa University, Ishikawa 927-0553, Japan
| | - Akihiro Umezawa
- Department of Reproduction, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| | - Takanori Ida
- Center for Animal Disease Control, University of Miyazaki, Miyazaki 889-1692, Japan
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18
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Olson-Manning CF. Elaboration of the Corticosteroid Synthesis Pathway in Primates through a Multistep Enzyme. Mol Biol Evol 2021; 37:2257-2267. [PMID: 32196091 DOI: 10.1093/molbev/msaa080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Metabolic networks are complex cellular systems dependent on the interactions among, and regulation of, the enzymes in the network. Although there is great diversity of types of enzymes that make up metabolic networks, the models meant to understand the possible evolutionary outcomes following duplication neglect specifics about the enzyme, pathway context, and cellular constraints. To illuminate the mechanisms that shape the evolution of biochemical pathways, I functionally characterize the consequences of gene duplication of an enzyme family that performs multiple subsequent enzymatic reactions (a multistep enzyme) in the corticosteroid pathway in primates. The products of the corticosteroid pathway (aldosterone and cortisol) are steroid hormones that regulate metabolism and stress response in tetrapods. These steroid hormones are synthesized by a multistep enzyme Cytochrome P450 11B (CYP11B) that performs subsequent steps on different carbon atoms of the steroid derivatives. Through ancestral state reconstruction and in vitro characterization, I find that the primate ancestor of the CYP11B1 and CYP11B2 paralogs had moderate ability to synthesize both cortisol and aldosterone. Following duplication in Old World primates, the CYP11B1 homolog specialized on the production of cortisol, whereas its paralog, CYP11B2, maintained its ability to perform multiple subsequent steps as in the ancestral pathway. Unlike CYP11B1, CYP11B2 could not specialize on the production of aldosterone because it is constrained to perform earlier steps in the corticosteroid synthesis pathway to achieve the final product aldosterone. These results suggest that enzyme function, pathway context, along with tissue-specific regulation, both play a role in shaping potential outcomes of metabolic network elaboration.
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Affiliation(s)
- Carrie F Olson-Manning
- Department of Biology, Augustana University, Sioux Falls, SD.,Department of Ecology and Evolution, University of Chicago, Chicago, IL
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19
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Yablokov EO, Sushko TA, Kaluzhskiy LA, Kavaleuski AA, Mezentsev YV, Ershov PV, Gilep AA, Ivanov АS, Strushkevich NV. Substrate-induced modulation of protein-protein interactions within human mitochondrial cytochrome P450-dependent system. J Steroid Biochem Mol Biol 2021; 208:105793. [PMID: 33271253 DOI: 10.1016/j.jsbmb.2020.105793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/18/2020] [Accepted: 11/14/2020] [Indexed: 12/28/2022]
Abstract
Steroidogenesis is strictly regulated at multiple levels, as produced steroid hormones are crucial to maintain physiological functions. Cytochrome P450 enzymes are key players in adrenal steroid hormone biosynthesis and function within short redox-chains in mitochondria and endoplasmic reticulum. However, mechanisms regulating supply of reducing equivalents in the mitochondrial CYP-dependent system are not fully understood. In the present work, we aimed to estimate how the specific steroids, substrates, intermediates and products of multistep reactions modulate protein-protein interactions between adrenodoxin (Adx) and mitochondrial CYP11 s. Using the SPR technology we determined that steroid substrates affect affinity and stability of CYP11s-Adx complexes in an isoform-specific mode. In particular, cholesterol induces a 4-fold increase in the rate of CYP11A1 - Adx complex formation without significant effect on dissociation (koff decreased ∼1.5-fold), overall increasing complex affinity. At the same time steroid substrates decrease the affinity of both CYP11B1 - Adx and CYP11B2 - Adx complexes, predominantly reducing their stability (4-7 fold). This finding reveals differentiation of protein-protein interactions within the mitochondrial pool of CYPs, which have the same electron donor. The regulation of electron supply by the substrates might affect the overall steroid hormones production. Our experimental data provide further insight into protein-protein interactions within CYP-dependent redox chains involved in steroidogenesis.
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Affiliation(s)
- E O Yablokov
- Institute of Biomedical Chemistry, 119121, Pogodinskaya str. 10, Building 8, Moscow, Russia.
| | - T A Sushko
- Department of Bioengineering, School of Engineering, The University of Tokyo, 4-6 - 1 Shirokanedai, Minato-ku, 108-8639, Tokyo, Japan
| | - L A Kaluzhskiy
- Institute of Biomedical Chemistry, 119121, Pogodinskaya str. 10, Building 8, Moscow, Russia
| | - A A Kavaleuski
- Institute of Bioorganic Chemistry National Academy of Sciences of Belarus, 220141, Kuprevicha str. 5/2, Minsk, Belarus
| | - Y V Mezentsev
- Institute of Biomedical Chemistry, 119121, Pogodinskaya str. 10, Building 8, Moscow, Russia
| | - P V Ershov
- Institute of Biomedical Chemistry, 119121, Pogodinskaya str. 10, Building 8, Moscow, Russia
| | - A A Gilep
- Institute of Bioorganic Chemistry National Academy of Sciences of Belarus, 220141, Kuprevicha str. 5/2, Minsk, Belarus
| | - А S Ivanov
- Institute of Biomedical Chemistry, 119121, Pogodinskaya str. 10, Building 8, Moscow, Russia
| | - N V Strushkevich
- Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205, Moscow, Russia
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20
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Zhao Y, Chen K, Liu F, Jiang M, Chen Z, Chen H, Song Y, Tao B, Cui X, Li Y, Zhu Z, Chen J, Hu W, Luo D. Dynamic Gene Expression and Alternative Splicing Events Demonstrate Co-Regulation of Testicular Differentiation and Maturation by the Brain and Gonad in Common Carp. Front Endocrinol (Lausanne) 2021; 12:820463. [PMID: 35222265 PMCID: PMC8867607 DOI: 10.3389/fendo.2021.820463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
The common carp (Cyprinus carpio) accounts for approximately 10% of the annual freshwater aquaculture production and is an ideal model to study cyprinidae reproduction. Female common carp grow faster than the males; therefore, related research presents an opportunity with high application value. Although we have a detailed understanding of common carp's early gonadal differentiation process, information about genome-wide gene expression, regulation, and underlying molecular mechanisms during this process remain limited. Here, time-course data comprising six key stages during testicular differentiation and maturation were investigated to further understand the molecular mechanisms underlying the testicular development in cyprinid species. After integrating these time-series data sets, common carp genome, including 98,345 novel transcripts and 3,071 novel genes were re-annotated and precisely updated. Gene co-expression network analysis revealed that the ubiquitin-mediated proteolysis pathway was essential for metabolism during testicular differentiation in the endocrine system of C. carpio. Functional enrichment analyses indicated that genes mainly related to amino acid metabolism and steroid hormone synthesis were relatively highly expressed at the testicular undifferentiation stages, whereas genes associated with cell cycle and meiosis were expressed from the beginning of testicular differentiation until maturation. The dynamics of alternative splicing events demonstrated that exon skipping accounted for majority of the alternative splicing events in the testis and the brain during gonad development. Notably, several potential male-specific genes (fanci and sox30) and brain-specific genes (oxt, gad2, and tac1, etc.) were identified. Importantly, we traversed beyond the level of transcription to test for stage- and gonad-specific alternative splicing patterns between the brain and testis. This study is the first to describe a comprehensive landscape of alternative splicing events and gene expression patterns during gonadogenesis in common carp. This work is extremely valuable to elucidate the mechanisms underlying gonadal differentiation in Cyprinidae as well as other fish species.
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Affiliation(s)
- Yuanli Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Kuangxin Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Fei Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Mouyan Jiang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Zonggui Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Huijie Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Yanlong Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Binbin Tao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Xuefan Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yongming Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
| | - Zuoyan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ji Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- *Correspondence: Ji Chen, ; Wei Hu, ; Daji Luo,
| | - Wei Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Ji Chen, ; Wei Hu, ; Daji Luo,
| | - Daji Luo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovative Academy of Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Ji Chen, ; Wei Hu, ; Daji Luo,
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21
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Brixius-Anderko S, Scott EE. Structural and functional insights into aldosterone synthase interaction with its redox partner protein adrenodoxin. J Biol Chem 2021; 296:100794. [PMID: 34015331 PMCID: PMC8215293 DOI: 10.1016/j.jbc.2021.100794] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 01/27/2023] Open
Abstract
Aldosterone is the major mineralocorticoid in the human body controlling blood pressure and salt homeostasis. Overproduction of aldosterone leads to primary aldosteronism, which is the most common form of secondary hypertension with limited treatment options. Production of aldosterone by cytochrome P450 11B2 (CYP11B2, aldosterone synthase) requires two reduction events with the electrons delivered by the iron/sulfur protein adrenodoxin. Very limited information is available about the structural and functional basis of adrenodoxin/CYP11B2 interaction, which impedes the development of new treatment options for primary aldosteronism. A systematic study was carried out to determine if adrenodoxin interaction with CYP11B2 might also have an allosteric component in addition to electron transfer. Indeed, local increases in adrenodoxin concentration promote binding of the substrate 11-deoxycorticosterone and the inhibitor osilodrostat (LCI699) in the active site-over 17 Å away-as well as enhance the inhibitory effect of this latter drug. The CYP11B2 structure in complex with adrenodoxin identified specific residues at the protein-protein interface interacting via five salt bridges and four hydrogen bonds. Comparisons with cholesterol-metabolizing CYP11A1 and cortisol-producing CYP11B1, which also bind adrenodoxin, revealed substantial structural differences in these regions. The structural and functional differences between different P450 interactions with adrenodoxin may provide valuable clues for an orthogonal treatment approach for primary aldosteronism by specifically targeting the interaction between CYP11B2 and adrenodoxin.
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Affiliation(s)
| | - Emily E Scott
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA; Department of Pharmacology, University of Michigan, Ann Arbor, Michigan, USA.
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22
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Li S, Lin G, Fang W, Gao D, Huang J, Xie J, Lu J. Identification and Comparison of microRNAs in the Gonad of the Yellowfin Seabream ( Acanthopagrus Latus). Int J Mol Sci 2020; 21:E5690. [PMID: 32784462 PMCID: PMC7461063 DOI: 10.3390/ijms21165690] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/14/2022] Open
Abstract
Yellowfin seabream (Acanthopagrus latus) is a commercially important fish in Asian coastal waters. Although natural sex reversal has been described in yellowfin seabream, the mechanisms underlying sexual differentiation and gonadal development in this species remain unclear. MicroRNAs (miRNAs) have been shown to play crucial roles in gametogenesis and gonadal development. Here, two libraries of small RNAs, constructed from the testes and ovaries of yellowfin seabream, were sequenced. Across both gonads, we identified 324 conserved miRNAs and 92 novel miRNAs: 67 ovary-biased miRNAs, including the miR-200 families, the miR-29 families, miR-21, and miR-725; and 88 testis-biased miRNAs, including the let-7 families, the miR-10 families, miR-7, miR-9, and miR-202-3p. GO (Gene Ontology) annotations and KEGG (Kyoto Encyclopedia of Genes and Genomes) enrichment analyses of putative target genes indicated that many target genes were significantly enriched in the steroid biosynthesis pathway and in the reproductive process. Our integrated miRNA-mRNA analysis demonstrated a putative negatively correlated expression pattern in yellowfin seabream gonads. This study profiled the expression patterns of sex-biased miRNAs in yellowfin seabream gonads, and provided important molecular resources that will help to clarify the miRNA-mediated post-transcriptional regulation of sexual differentiation and gonadal development in this species.
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Affiliation(s)
- Shizhu Li
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Genmei Lin
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Wenyu Fang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Dong Gao
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Jing Huang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Jingui Xie
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
| | - Jianguo Lu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China; (S.L.); (G.L.); (W.F.); (D.G.); (J.H.); (J.X.)
- Southern Marine Sciences and Engineering Guangdong Laboratory, Zhuhai 519082, China
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23
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Weinguny M, Klanert G, Eisenhut P, Jonsson A, Ivansson D, Lövgren A, Borth N. Directed evolution approach to enhance efficiency and speed of outgrowth during single cell subcloning of Chinese Hamster Ovary cells. Comput Struct Biotechnol J 2020; 18:1320-1329. [PMID: 32612755 PMCID: PMC7306589 DOI: 10.1016/j.csbj.2020.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/16/2020] [Accepted: 05/17/2020] [Indexed: 01/08/2023] Open
Abstract
Chinese Hamster Ovary (CHO) cells are the working horse of the pharmaceutical industry. To obtain high producing cell clones and to satisfy regulatory requirements single cell cloning is a necessary step in cell line development. However, it is also a tedious, labor intensive and expensive process. Here we show an easy way to enhance subclonability using subcloning by single cell sorting itself as the selection pressure, resulting in improved subcloning performance of three different host cell lines. These improvements in subclonability also lead to an enhanced cellular growth behavior during standard batch culture. RNA-seq was performed to shed light on the underlying mechanisms, showing that there is little overlap in differentially expressed genes or associated pathways between the cell lines, each finding their individual strategy for optimization. However, in all three cell lines pathways associated with the extracellular matrix were found to be enriched, indicating that cells struggle predominantly with their microenvironment and possibly lack of cell-to-cell contact. The observed small overlap may hint that there are multiple ways for a cell line to achieve a certain phenotype due to numerous genetic and subsequently metabolic redundancies.
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Key Words
- CHO
- CHO cells
- CHO, Chinese hamster ovary
- Cell line development
- Cell sorting
- Chinese Hamster Ovary Cells
- CoI, clusters of interest
- DE, directed evolved
- Directed Evolution
- ECM, extracellular matrix
- ES, enrichment score
- FACS
- FACS, fluorescent-activated cell sorting
- Fluorescent-activated cell sorting
- GSEA, gene set analysis
- Growth enhancement
- Growth improvement
- LDC, limiting dilution cloning
- NES, negative enrichment score
- PC, principal component
- PCA, principal component analysis
- POI, product of interest
- RNA Sequencing
- RNA-Seq
- RNA-Seq, RNA sequencing
- SCC, single cell cloning
- Single Cell Cloning
- Single Cell Subcloning
- Subcloning
- lfcSE, logfoldstandard error
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Affiliation(s)
- Marcus Weinguny
- ACIB Gmbh, Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Vienna, Austria
| | - Gerald Klanert
- ACIB Gmbh, Austrian Centre of Industrial Biotechnology, Vienna, Austria
| | - Peter Eisenhut
- ACIB Gmbh, Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Vienna, Austria
| | | | | | | | - Nicole Borth
- ACIB Gmbh, Austrian Centre of Industrial Biotechnology, Vienna, Austria
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Vienna, Austria
- Corresponding author at: Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria.
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24
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Zhang Q, Ye D, Wang H, Wang Y, Hu W, Sun Y. Zebrafish cyp11c1 Knockout Reveals the Roles of 11-ketotestosterone and Cortisol in Sexual Development and Reproduction. Endocrinology 2020; 161:5813458. [PMID: 32222764 DOI: 10.1210/endocr/bqaa048] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/26/2020] [Indexed: 01/08/2023]
Abstract
Androgen is essential for male development and cortisol is involved in reproduction in fishes. However, the in vivo roles of cortisol and specific androgens such as 11-ketotestosterone (11-KT) in reproductive development need to be described with genetic models. Zebrafish cyp11c1 encodes 11β-hydroxylase, which is essential for the biosynthesis of 11-KT and cortisol. In this study, we generated a zebrafish mutant of cyp11c1 (cyp11c1-/-) and utilized it to clarify the roles of 11-KT and cortisol in sexual development and reproduction. The cyp11c1-/- fish had smaller genital papilla and exhibited defective natural mating but possessed mature gametes and were found at a sex ratio comparable to the wildtype control. The cyp11c1-/- males showed delayed and prolonged juvenile ovary-to-testis transition and displayed defective spermatogenesis at adult stage, which could be rescued by treatment with 11-ketoandrostenedione (11-KA) at certain stages. Specifically, during testis development of cyp11c1-/- males, the expression of insl3, cyp17a1, and amh was significantly decreased, suggesting that 11-KT is essential for the development and function of Leydig cells and Sertoli cells. Further, spermatogenesis-related dmrt1 was subsequently downregulated, leading to insufficient spermatogenesis. The cyp11c1-/- females showed a reduction in egg spawning and a failure of in vitro germinal vesicle breakdown, which could be partially rescued by cortisol treatment. Taken together, our study reveals that zebrafish Cyp11c1 is not required for definite sex differentiation but is essential for juvenile ovary-to-testis transition, Leydig cell development, and spermatogenesis in males through 11-KT, and it is also involved in oocyte maturation and ovulation in females through cortisol.
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Affiliation(s)
- Qifeng Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Ding Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Houpeng Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
| | - Yaqing Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Wei Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yonghua Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design (INASEED), Chinese Academy of Sciences, Wuhan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
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25
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Imoesi PI, Bowman EE, Stoney PN, Matz S, McCaffery P. Rapid Action of Retinoic Acid on the Hypothalamic Pituitary Adrenal Axis. Front Mol Neurosci 2019; 12:259. [PMID: 31736706 PMCID: PMC6831734 DOI: 10.3389/fnmol.2019.00259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
Retinoic acid (RA) is the active metabolite of vitamin A but is also used as a medication, primarily for acne in which the treatment regime lasts several months. A number of studies have indicated that treatment with RA over this time period impacts the hypothalamic-pituitary-adrenal (HPA) axis and may contribute to a number of the side-effects of the drug. No studies though have investigated the short-term, early effects RA may have on the HPA axis via the transcriptional pathways activated by the RA receptor. This study investigated the action of RA over 3 days on regulatory components of the HPA axis. Several key genes involved in glucocorticoid feedback pathways in the hippocampus, hypothalamus and pituitary were unchanged after 3-days exposure to RA. Key elements though in the adrenal gland involved in corticosterone and aldosterone synthesis were altered in particular with the Cyp11b2 gene downregulated in vivo and ex vivo. The rapid, 5 h, change in Cyp11b2 expression suggested this activation may be direct. These results highlight the adrenal gland as a target of short-term action of RA and potentially a trigger component in the mechanisms by which the long-term adverse effects of RA treatment occur.
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Affiliation(s)
- Peter I Imoesi
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Ellen E Bowman
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Patrick N Stoney
- Cell Signal Unit, Okinawa Institute of Science and Technology, Okinawa, Japan
| | - Sylwia Matz
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Peter McCaffery
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
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26
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Baker ME. Steroid receptors and vertebrate evolution. Mol Cell Endocrinol 2019; 496:110526. [PMID: 31376417 DOI: 10.1016/j.mce.2019.110526] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 07/23/2019] [Accepted: 07/26/2019] [Indexed: 12/22/2022]
Abstract
Considering that life on earth evolved about 3.7 billion years ago, vertebrates are young, appearing in the fossil record during the Cambrian explosion about 542 to 515 million years ago. Results from sequence analyses of genomes from bacteria, yeast, plants, invertebrates and vertebrates indicate that receptors for adrenal steroids (aldosterone, cortisol), and sex steroids (estrogen, progesterone, testosterone) also are young, with an estrogen receptor and a 3-ketosteroid receptor first appearing in basal chordates (cephalochordates: amphioxus), which are close ancestors of vertebrates. Duplication and divergence of the 3-ketosteroid receptor yielded an ancestral progesterone receptor and an ancestral corticoid receptor, the common ancestor of the glucocorticoid and mineralocorticoid receptors, in jawless vertebrates (cyclostomes: lampreys, hagfish). This was followed by evolution of an androgen receptor, distinct glucocorticoid and mineralocorticoid receptors and estrogen receptor-α and -β in cartilaginous fishes (Chondrichthyes: sharks). Further evolution of mineralocorticoid signaling occurred with the evolution of aldosterone synthase in lungfish, a forerunner of terrestrial vertebrates. Adrenal and sex steroid receptors are not found in echinoderms and hemichordates, which are ancestors in the lineage of cephalochordates and vertebrates. The evolution of steroid receptors at key nodes in the evolution of vertebrates, in which steroid receptors act as master switches to regulate differentiation, development, reproduction, immune responses, electrolyte homeostasis and stress responses, suggests an important role for steroid receptors in the evolutionary success of vertebrates, considering that the human genome contains about 22,000 genes, which is not much larger than genomes of invertebrates, such as Caenorhabditis elegans (~18,000 genes) and Drosophila (~14,000 genes).
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Affiliation(s)
- Michael E Baker
- Division of Nephrology-Hypertension, Department of Medicine, 0693, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0693, USA.
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27
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Usanov SA, Kliuchenovich AV, Strushkevich NV. Drug design strategies for Cushing's syndrome. Expert Opin Drug Discov 2018; 14:143-151. [PMID: 30572739 DOI: 10.1080/17460441.2019.1559146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Cushing's syndrome (CS) is a metabolic disorder caused by chronic hypercortisolism. CS is associated with cardiovascular, metabolic, skeletal and psychological dysfunctions and can be fatal if left untreated. The first-line treatment for all forms of CS is a surgery. However, medical therapy has to be chosen if surgical resection is not an option or is deemed ineffective. Currently available therapeutics are either not selective and have side effects or are only available as an injection (pasireotide). Areas covered: The authors discuss the recent drug developments for the medical treatment of CS through two validated molecular targets. Specifically, the authors look at selective inhibitors of CYP11B1 that reduce cortisol production by inhibiting steroid 11beta-hydroxylase and glucocorticoid receptor (GR) antagonists that interrupt cortisol-mediating transcriptional regulation of related genes. Expert opinion: Patients with CS have limited treatment options; indeed, there is an unmet need for new compounds that target CYP11B1 selectively versus several steroidogenic enzymes and/or GR-signaling pathways. The complexity of steroid biosynthesis and signaling requires the application of structure-based drug discovery techniques that use molecular targets and highly similar off-targets. Significant differences in steroidogenesis between humans and other species necessitates caution over the choice of in vivo model for the preclinical evaluation of future potential compounds.
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Affiliation(s)
- S A Usanov
- a Institute of Bioorganic Chemistry of the National Academy of Science of Belarus , Minsk , Republic of Belarus
| | - A V Kliuchenovich
- b Target Medicals LLC , Skolkovo Innovation Center (Technopark) , Moscow , Russian Federation
| | - N V Strushkevich
- a Institute of Bioorganic Chemistry of the National Academy of Science of Belarus , Minsk , Republic of Belarus
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28
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Biscotti MA, Adolfi MC, Barucca M, Forconi M, Pallavicini A, Gerdol M, Canapa A, Schartl M. A Comparative View on Sex Differentiation and Gametogenesis Genes in Lungfish and Coelacanths. Genome Biol Evol 2018; 10:1430-1444. [PMID: 29850809 PMCID: PMC6007259 DOI: 10.1093/gbe/evy101] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2018] [Indexed: 12/30/2022] Open
Abstract
Gonadal sex differentiation and reproduction are the keys to the perpetuation of favorable gene combinations and positively selected traits. In vertebrates, several gonad development features that differentiate tetrapods and fishes are likely to be, at least in part, related to the water-to-land transition. The collection of information from basal sarcopterygians, coelacanths, and lungfishes, is crucial to improve our understanding of the molecular evolution of pathways involved in reproductive functions, since these organisms are generally regarded as “living fossils” and as the direct ancestors of tetrapods. Here, we report for the first time the characterization of >50 genes related to sex differentiation and gametogenesis in Latimeria menadoensis and Protopterus annectens. Although the expression profiles of most genes is consistent with the intermediate position of basal sarcopterygians between actinopterygian fish and tetrapods, their phylogenetic placement and presence/absence patterns often reveal a closer affinity to the tetrapod orthologs. On the other hand, particular genes, for example, the male gonad factor gsdf (Gonadal Soma-Derived Factor), provide examples of ancestral traits shared with actinopterygians, which disappeared in the tetrapod lineage.
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Affiliation(s)
- Maria Assunta Biscotti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | | | - Marco Barucca
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Mariko Forconi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | | | - Marco Gerdol
- Dipartimento di Scienze della Vita, Università di Trieste, Italy
| | - Adriana Canapa
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Manfred Schartl
- Physiological Chemistry, Biocenter, University of Wuerzburg, Germany.,Comprehensive Cancer Center Mainfranken, University Clinic Wuerzburg, Germany.,Hagler Institute of Advanced Study and Department of Biology,Texa A&M University, USA
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29
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Travers S, Martinerie L, Boileau P, Xue QY, Lombès M, Pussard E. Comparative profiling of adrenal steroids in maternal and umbilical cord blood. J Steroid Biochem Mol Biol 2018; 178:127-134. [PMID: 29191401 DOI: 10.1016/j.jsbmb.2017.11.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/24/2017] [Accepted: 11/27/2017] [Indexed: 01/15/2023]
Abstract
Fetal steroidome in late pregnancy receives multiple contributions from both maternal and fetal adrenals as well as from placenta. Depressed glucocorticoid levels have been reported in fetal blood at birth, yet studies on mineralocorticoid pathways are sparse. To investigate biosynthesis pathways at birth, adrenal steroids profiles were established in paired mothers and neonates. Forty-six paired healthy term newborns and their mothers from the Aldo cohort were assessed. Steroidomic profiles of mineralocorticoids, glucocorticoids and adrenal androgens were established from umbilical cord and maternal blood at birth using a highly sensitive and specific LC-MS/MS methodology. As compared to maternal blood, umbilical cord blood exhibited high levels of steroids precursors (progesterone and 11-deoxycorticosterone) contrasting with a collapse in corticosterone levels. Consecutively, 18-hydroxycorticosterone and aldosterone levels were also depressed in neonates. Similarly, umbilical cord blood levels of both 17-hydroxyprogesterone and 11-deoxycortisol were higher while cortisol levels sharply decreased. The product-to-substrate ratios evaluating the 11-hydroxylation step (corticosterone/11-deoxycorticosterone and cortisol/11-deoxycortisol) fell for both pathways. As expected, cortisone and 11-dehydrocorticosterone levels exceed those of cortisol and corticosterone in umbilical cord blood reflecting the strong placental 11-β-hydroxysteroid-dehydrogenase type 2 (11βHSD2) activity. Dehydroepiandrosterone-sulphate levels are higher in neonates, while both androstenedione and testosterone levels sharply fell. No significant difference in steroid levels could be observed according the gender except higher testosterone concentrations in umbilical cord of boys. Moreover, a strong and negative relationship between testosterone and progesterone levels was recorded in umbilical cord of boys. These adrenal steroidomic profiling demonstrate a deficit in mineralocorticoids (aldosterone, 18-hydroxycorticosterone and corticosterone) and glucocorticoids (cortisol) in term neonates, reflecting either a relative defect in 11-hydroxylase activity or more likely the strong placental 11-β-HSD2 activity. Collectively, these findings should be taken into account for a better understanding of regulatory interactions between placenta and fetal adrenal.
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Affiliation(s)
- Simon Travers
- Inserm, U1185, Le Kremlin-Bicêtre, F-94276, France; Fac Med Paris-Sud, Univ. Paris-Sud, Université Paris Saclay, UMR-S 1185, Le Kremlin-Bicêtre, F-94276, France; Service de Génétique Moléculaire, Pharmacogénétique et Hormonologie, Hôpital de Bicêtre, Hôpitaux Universitaires Paris Sud, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre, F-94275, France
| | - Laetitia Martinerie
- Inserm, U1185, Le Kremlin-Bicêtre, F-94276, France; Service d'Endocrinologie Pédiatrique, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Paris, F-75019, France; PremUp Foundation, Paris, F-75005, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, F-75019, France
| | - Pascal Boileau
- PremUp Foundation, Paris, F-75005, France; Service de Réanimation Néonatale, CH Poissy St-Germain en-Laye, Poissy, F-78303, France; EA 7285, UFR des Sciences de la Santé, Simone Veil. Université Versailles St-Quentin en Yvelines, Montigny le Bretonneux F-78180, France
| | - Qiong-Yao Xue
- Inserm, U1185, Le Kremlin-Bicêtre, F-94276, France; Fac Med Paris-Sud, Univ. Paris-Sud, Université Paris Saclay, UMR-S 1185, Le Kremlin-Bicêtre, F-94276, France; UMS 32, Institut Biomédical de Bicêtre, Le Kremlin-Bicêtre F-94276, France
| | - Marc Lombès
- Inserm, U1185, Le Kremlin-Bicêtre, F-94276, France; Fac Med Paris-Sud, Univ. Paris-Sud, Université Paris Saclay, UMR-S 1185, Le Kremlin-Bicêtre, F-94276, France; PremUp Foundation, Paris, F-75005, France; Service d'Endocrinologie et Maladies de la Reproduction, Hôpital de Bicêtre, Hôpitaux Universitaires Paris Sud, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre, F-94275, France; UMS 32, Institut Biomédical de Bicêtre, Le Kremlin-Bicêtre F-94276, France
| | - Eric Pussard
- Inserm, U1185, Le Kremlin-Bicêtre, F-94276, France; Fac Med Paris-Sud, Univ. Paris-Sud, Université Paris Saclay, UMR-S 1185, Le Kremlin-Bicêtre, F-94276, France; Service de Génétique Moléculaire, Pharmacogénétique et Hormonologie, Hôpital de Bicêtre, Hôpitaux Universitaires Paris Sud, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre, F-94275, France; UMS 32, Institut Biomédical de Bicêtre, Le Kremlin-Bicêtre F-94276, France.
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Johnston ZC, Bellingham M, Filis P, Soffientini U, Hough D, Bhattacharya S, Simard M, Hammond GL, King P, O'Shaughnessy PJ, Fowler PA. The human fetal adrenal produces cortisol but no detectable aldosterone throughout the second trimester. BMC Med 2018; 16:23. [PMID: 29429410 PMCID: PMC5808459 DOI: 10.1186/s12916-018-1009-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 01/18/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Human fetal adrenal glands are highly active and, with the placenta, regulate circulating progesterone, estrogen and corticosteroids in the fetus. At birth the adrenals are essential for neonate salt retention through secretion of aldosterone, while adequate glucocorticoids are required to prevent adrenal insufficiency. The objective of this study was to carry out the first comprehensive analysis of adrenal steroid levels and steroidogenic enzyme expression in normal second trimester human fetuses. METHODS This was an observational study of steroids, messenger RNA transcripts and proteins in adrenals from up to 109 second trimester fetuses (11 weeks to 21 weeks) at the Universities of Aberdeen and Glasgow. The study design was balanced to show effects of maternal smoking. RESULTS Concentrations of 19 intra-adrenal steroids were quantified using liquid chromatography and mass spectrometry. Pregnenolone was the most abundant steroid while levels of 17α-hydroxyprogesterone, dehydroepiandrosterone sulphate (DHEAS) and progesterone were also high. Cortisol was present in all adrenals, but aldosterone was undetected and Δ4 androgens were low/undetected. CYP17A1, CYP21A2 and CYP11A1 were all highly expressed and the proteins localized to the adrenal fetal zone. There was low-level expression of HSD3B and CYP11B2, with HSD3B located mainly in the definitive zone. Maternal smoking altered fetal plasma adrenocorticotropic hormone (ACTH) (P = 0.052) and intra-adrenal progesterone, 17α-hydroxyprogesterone and 16α-hydroxyprogesterone, but not plasma or intra-adrenal cortisol, or intra-adrenal DHEAS. Fetal adrenal GATA6 and NR5A1 were increased by maternal smoking. CONCLUSIONS The human fetal adrenal gland produces cortisol but very low levels of Δ4 androgens and no detectable aldosterone throughout the second trimester. The presence of cortisol in fetal adrenals suggests that adrenal regulation of circulating fetal ACTH remains a factor in development of congenital adrenal hyperplasia during the second trimester, while a relative lack of aldosterone explains the salt-wasting disorders frequently seen in extreme pre-term neonates. Finally, maternal smoking may alter fetal adrenal sensitivity to ACTH, which could have knock-on effects on post-natal health.
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Affiliation(s)
- Zoe C Johnston
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Michelle Bellingham
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Panagiotis Filis
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Ugo Soffientini
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Denise Hough
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Siladitya Bhattacharya
- Institute of Applied Health Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Marc Simard
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, British Columbia, V6T 1Z3, Canada
| | - Geoffrey L Hammond
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, British Columbia, V6T 1Z3, Canada
| | - Peter King
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Peter J O'Shaughnessy
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Paul A Fowler
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK.
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Aragao-Santiago L, Gomez-Sanchez CE, Mulatero P, Spyroglou A, Reincke M, Williams TA. Mouse Models of Primary Aldosteronism: From Physiology to Pathophysiology. Endocrinology 2017; 158:4129-4138. [PMID: 29069360 PMCID: PMC5711388 DOI: 10.1210/en.2017-00637] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/16/2017] [Indexed: 01/08/2023]
Abstract
Primary aldosteronism (PA) is a common form of endocrine hypertension that is characterized by the excessive production of aldosterone relative to suppressed plasma renin levels. PA is usually caused by either a unilateral aldosterone-producing adenoma or bilateral adrenal hyperplasia. Somatic mutations have been identified in several genes that encode ion pumps and channels that may explain the aldosterone excess in over half of aldosterone-producing adenomas, whereas the pathophysiology of bilateral adrenal hyperplasia is largely unknown. A number of mouse models of hyperaldosteronism have been described that recreate some features of the human disorder, although none replicate the genetic basis of human PA. Animal models that reproduce the genotype-phenotype associations of human PA are required to establish the functional mechanisms that underlie the endocrine autonomy and deregulated cell growth of the affected adrenal and for preclinical studies of novel therapeutics. Herein, we discuss the differences in adrenal physiology across species and describe the genetically modified mouse models of PA that have been developed to date.
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Affiliation(s)
- Leticia Aragao-Santiago
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Germany
| | - Celso E Gomez-Sanchez
- Endocrinology Division, G.V. (Sonny) Montgomery Veterans Affairs Medical Center and University of Mississippi Medical Center
| | - Paolo Mulatero
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Turin, Italy
| | - Ariadni Spyroglou
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Germany
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Germany
| | - Tracy Ann Williams
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Germany
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Turin, Italy
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Abstract
The radiation-induced bystander effect (RIBE) is the initiation of biological end points in cells (bystander cells) that are not directly traversed by an incident-radiation track, but are in close proximity to cells that are receiving the radiation. RIBE has been indicted of causing DNA damage via oxidative stress, besides causing direct damage, inducing tumorigenesis, producing micronuclei, and causing apoptosis. RIBE is regulated by signaling proteins that are either endogenous or secreted by cells as a means of communication between cells, and can activate intracellular or intercellular oxidative metabolism that can further trigger signaling pathways of inflammation. Bystander signals can pass through gap junctions in attached cell lines, while the suspended cell lines transmit these signals via hormones and soluble proteins. This review provides the background information on how reactive oxygen species (ROS) act as bystander signals. Although ROS have a very short half-life and have a nanometer-scale sphere of influence, the wide variety of ROS produced via various sources can exert a cumulative effect, not only in forming DNA adducts but also setting up signaling pathways of inflammation, apoptosis, cell-cycle arrest, aging, and even tumorigenesis. This review outlines the sources of the bystander effect linked to ROS in a cell, and provides methods of investigation for researchers who would like to pursue this field of science.
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Affiliation(s)
- Humaira Aziz Sawal
- Healthcare Biotechnology Department, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad
| | - Kashif Asghar
- Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan
| | - Matthias Bureik
- Health Science Platform, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Nasir Jalal
- Health Science Platform, Department of Molecular and Cellular Pharmacology, Tianjin University, Tianjin, China
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Amweg AN, Rodríguez FM, Huber E, Marelli BE, Gareis NC, Belotti EM, Rey F, Salvetti NR, Ortega HH. Detection and activity of 11 beta hydroxylase (CYP11B1) in the bovine ovary. Reproduction 2017; 153:433-441. [DOI: 10.1530/rep-16-0493] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/02/2017] [Accepted: 01/09/2017] [Indexed: 12/11/2022]
Abstract
Glucocorticoids (GCs) such as cortisol and corticosterone are important steroid hormones with different functions in intermediate metabolism, development, cell differentiation, immune response and reproduction. In response to physiological and immunological stress, adrenocorticotropic hormone (ACTH) acts on the adrenal gland by stimulating the synthesis and secretion of GCs. However, there is increasing evidence that GCs may also be synthesized by extra-adrenal tissues. Here, we examined the gene and protein expression of the enzyme 11β-hydroxylase P450c11 (CYP11B1), involved in the conversion of 11-deoxycortisol to cortisol, in the different components of the bovine ovary and determined the functionality of CYP11B1in vitro.CYP11B1mRNA was expressed in granulosa and theca cells in small, medium and large antral ovarian follicles, and CYP11B1 protein was expressed in medium and large antral follicles. After stimulation by ACTH, we observed an increased secretion of cortisol by the wall of large antral follicles. We also observed a concentration-dependent decrease in the concentration of cortisol in response to metyrapone, an inhibitor of CYP11B1. This decrease was significant at 10−5 µM metyrapone. In conclusion, this study demonstrated for the first time the presence of CYP11B1 in the bovine ovary. This confirms that there could be a local synthesis of GCs in the bovine ovary and therefore a potential endocrine responder to stress through these hormones.
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34
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Wang CL, Wang ZP, Wang JQ, Li MY, Chen XW. Identification of candidate piRNAs in the gonads of Paralichthys olivaceus (Japanese flounder). Zool Res 2017; 37:301-6. [PMID: 27686790 DOI: 10.13918/j.issn.2095-8137.2016.5.301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Piwi-interacting RNA (piRNA) plays an important role in the gonadal development and maintenance of Teleostei. In this study, piRNA libraries derived from the adult gonads of Japanese flounder (Paralichthys olivaceus) were generated using next-generation sequencing technology. Using zebrafish piRNAs as a reference, 5 865 unique candidate piRNAs were identified; 289 candidate piRNA clusters (PRCs) were generated from the above piRNAs. Among the isolated candidate PRCs, a total of 38 ovary-specific, 45 ovary-bias, 24 testis-specific, and 131 testis-bias PRCs were found. The relative expression levels of seven PRCs were validated through quantitative reverse transcription-polymerase chain reaction. The results of this study will help facilitate exploration of the development and maintenance of the phenotypic sex mechanism in P. olivaceus.
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Affiliation(s)
- Chun-Lei Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Zhi-Peng Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Jia-Qi Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Ming-You Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Xiao-Wu Chen
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
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35
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Louiset E, Duparc C, Lenglet S, Gomez-Sanchez CE, Lefebvre H. Role of cAMP/PKA pathway and T-type calcium channels in the mechanism of action of serotonin in human adrenocortical cells. Mol Cell Endocrinol 2017; 441:99-107. [PMID: 27743992 PMCID: PMC5465225 DOI: 10.1016/j.mce.2016.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/30/2016] [Accepted: 10/09/2016] [Indexed: 11/29/2022]
Abstract
In human adrenal, serotonin (5-HT), produced by mast cells located in zona glomerulosa, stimulates production of corticosteroids through a paracrine mechanism involving the 5-HT receptor type 4 (5-HT4). The aim of the present study was to investigate the transduction mechanisms associated with activation of 5-HT4 receptors in human adrenocortical cells. Our results show that 5-HT4 receptors are present in the outer adrenal cortex, both in glomerulosa and fasciculata zonae. In the zona glomerulosa. 5-HT4 receptor was detected both in immunopositive and immunonegative cells for 11β-hydroxylase, an enzyme involved in cortisol synthesis. The data demonstrate that 5-HT4 receptors are positively coupled to adenylyl cyclases and cAMP-dependent protein kinases (PKA). The activation of the cAMP-PKA pathway is associated with calcium influx through T-type calcium channels. Both the adenylyl cyclase/PKA pathway and the calcium influx are involved in 5-HT-induced cortisol secretion.
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Affiliation(s)
- Estelle Louiset
- Normandie Univ, UNIROUEN, INSERM, DC2N, 76000, Rouen, France
| | - Céline Duparc
- Normandie Univ, UNIROUEN, INSERM, DC2N, 76000, Rouen, France
| | - Sébastien Lenglet
- Unit of Toxicology, University Center of Legal Medicine, CH-1211 Geneva 4, Switzerland
| | - Celso E Gomez-Sanchez
- Endocrine Section, Department of Medicine, G.V. (Sonny) Montgomery VA Medical Center, University of Mississippi Medical Center, Jackson, MS, USA
| | - Hervé Lefebvre
- Normandie Univ, UNIROUEN, INSERM, DC2N, 76000, Rouen, France; Department of Endocrinology, Diabetes and Metabolic Diseases, University Hospital of Rouen, Rouen, France.
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36
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Bulsari K, Falhammar H. Clinical perspectives in congenital adrenal hyperplasia due to 11β-hydroxylase deficiency. Endocrine 2017; 55:19-36. [PMID: 27928728 DOI: 10.1007/s12020-016-1189-x] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 11/23/2016] [Indexed: 10/20/2022]
Abstract
Congenital adrenal hyperplasia due to 11 beta-hydroxylase deficiency is a rare autosomal recessive genetic disorder. It is caused by reduced or absent activity of 11β-hydroxylase (CYP11B1) enzyme and the resultant defects in adrenal steroidogenesis. The most common clinical features of 11 beta-hydroxylase deficiency are ambiguous genitalia, accelerated skeletal maturation and resultant short stature, peripheral precocious puberty and hyporeninemic hypokalemic hypertension. The biochemical diagnosis is based on raised serum 11-deoxycortisol and 11-deoxycorticosterone levels together with increased adrenal androgens. More than 100 mutations in CYP11B1 gene have been reported to date. The level of in-vivo activity of CYP11B1 relates to the degree of severity of 11 beta-hydroxylase deficiency. Clinical management of 11 beta-hydroxylase deficiency can pose a challenge to maintain adequate glucocorticoid dosing to suppress adrenal androgen excess while avoiding glucocorticoid-induced side effects. The long-term outcomes of clinical and surgical management are not well studied. This review article aims to collate the current available data about 11 beta-hydroxylase deficiency and its management.
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Affiliation(s)
- Krupali Bulsari
- Department of Endocrinology, Royal Darwin Hospital, Darwin, NT, Australia.
| | - Henrik Falhammar
- Department of Endocrinology, Royal Darwin Hospital, Darwin, NT, Australia
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Menzies School of Health Research, Darwin, NT, Australia
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Schiffer L, Müller AR, Hobler A, Brixius-Anderko S, Zapp J, Hannemann F, Bernhardt R. Biotransformation of the mineralocorticoid receptor antagonists spironolactone and canrenone by human CYP11B1 and CYP11B2: Characterization of the products and their influence on mineralocorticoid receptor transactivation. J Steroid Biochem Mol Biol 2016; 163:68-76. [PMID: 27125452 DOI: 10.1016/j.jsbmb.2016.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 04/10/2016] [Indexed: 11/30/2022]
Abstract
Spironolactone and its major metabolite canrenone are potent mineralocorticoid receptor antagonists and are, therefore, applied as drugs for the treatment of primary aldosteronism and essential hypertension. We report that both compounds can be converted by the purified adrenocortical cytochromes P450 CYP11B1 and CYP11B2, while no conversion of the selective mineralocorticoid receptor antagonist eplerenone was observed. As their natural function, CYP11B1 and CYP11B2 carry out the final steps in the biosynthesis of gluco- and mineralocorticoids. Dissociation constants for the new exogenous substrates were determined by a spectroscopic binding assay and demonstrated to be comparable to those of the natural substrates, 11-deoxycortisol and 11-deoxycorticosterone. Metabolites were produced at preparative scale with a CYP11B2-dependent Escherichia coli whole-cell system and purified by HPLC. Using NMR spectroscopy, the metabolites of spironolactone were identified as 11β-OH-spironolactone, 18-OH-spironolactone and 19-OH-spironolactone. Canrenone was converted to 11β-OH-canrenone, 18-OH-canrenone as well as to the CYP11B2-specific product 11β,18-diOH-canrenone. Therefore, a contribution of CYP11B1 and CYP11B2 to the biotransformation of drugs should be taken into account and the metabolites should be tested for their potential toxic and pharmacological effects. A mineralocorticoid receptor transactivation assay in antagonist mode revealed 11β-OH-spironolactone as pharmaceutically active metabolite, whereas all other hydroxylation products negate the antagonist properties of spironolactone and canrenone. Thus, human CYP11B1 and CYP11B2 turned out to metabolize steroid-based drugs additionally to the liver-dependent biotransformation of drugs. Compared with the action of the parental drug, changed properties of the metabolites at the target site have been observed.
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Affiliation(s)
- Lina Schiffer
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany
| | - Anne-Rose Müller
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany
| | - Anna Hobler
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany
| | - Simone Brixius-Anderko
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany
| | - Josef Zapp
- Pharmaceutical Biology, Saarland University, Campus C2.2, 66123 Saarbruecken, Germany
| | - Frank Hannemann
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany
| | - Rita Bernhardt
- Institute of Biochemistry, Saarland University, Campus B2.2, 66123 Saarbruecken, Germany.
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Bouhaddioui W, Provost PR, Tremblay Y. CYP21A2 expression is localized in the developing distal epithelium of the human perinatal lung and is compatible with in situ production and intracrine actions of active glucocorticoids. J Steroid Biochem Mol Biol 2016; 163:12-9. [PMID: 27004467 DOI: 10.1016/j.jsbmb.2016.03.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 03/10/2016] [Accepted: 03/14/2016] [Indexed: 11/29/2022]
Abstract
Glucocorticoids play essential roles in lung development. We investigated for expression of CYP21A2 (21-hydroxylase) as well as for the presence of the corresponding protein and identification of CYP21A2-expressing cells in several human developing lungs. Expression of some related genes was also assessed. CYP21A2 and CYP17A1 (P450c17) mRNAs were found in all the 34 lung samples from 17 to 40 weeks' gestation at variable levels. No correlation was found according to sex but a correlation with age was detected for CYP17A1 only. In contrast, CYP11B1 (11β-hydroxylase)- and CYP11B2 (aldosterone synthase)-mRNAs were not detected. Significant levels of the CYP21A2 protein were detected in all the analyzed samples, while only very low signals were detected for CYP17A1 protein. In situ hybridization revealed that CYP21A2 was almost exclusively expressed in the distal epithelium. It was reported that the lung distal epithelium of human fetuses also express 11β-hydroxysteroid dehydrogenase type 2, which catalyzes cortisol inactivation into cortisone. Based on this information, intracrine glucocorticoid actions should take place from CYP21A2 products through the glucocorticoid receptor in the absence of cortisol. In contrast, mineralocorticoid receptor activation did not seem to depend on deoxycorticosterone produced from local activity of CYP21A2 because of the reported circulating amounts of aldosterone.
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Affiliation(s)
- Wafae Bouhaddioui
- Reproduction, Mother and Youth Health, Centre de recherche CHU de Québec, Québec, QC, Canada; Centre de Recherche en Biologie de la Reproduction (CRBR), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Pierre R Provost
- Reproduction, Mother and Youth Health, Centre de recherche CHU de Québec, Québec, QC, Canada; Department of Obstetrics/Gynecology & Reproduction, Faculty of Medicine, Université Laval, Québec, QC, Canada; Centre de Recherche en Biologie de la Reproduction (CRBR), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Yves Tremblay
- Reproduction, Mother and Youth Health, Centre de recherche CHU de Québec, Québec, QC, Canada; Department of Obstetrics/Gynecology & Reproduction, Faculty of Medicine, Université Laval, Québec, QC, Canada; Centre de Recherche en Biologie de la Reproduction (CRBR), Faculté de Médecine, Université Laval, Québec, QC, Canada.
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Salamanca-Pinzon SG, Khatri Y, Carius Y, Keller L, Müller R, Lancaster CRD, Bernhardt R. Structure-function analysis for the hydroxylation of Δ4 C21-steroids by the myxobacterial CYP260B1. FEBS Lett 2016; 590:1838-51. [DOI: 10.1002/1873-3468.12217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/29/2016] [Accepted: 05/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
| | - Yogan Khatri
- Institute of Biochemistry; Saarland University; Saarbrücken Germany
| | - Yvonne Carius
- Department of Structural Biology; Institute of Biophysics and Center of Human and Molecular Biology (ZHMB); Saarland University; Homburg Germany
| | - Lena Keller
- Department of Microbial Natural Products; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology; Saarland University; Saarbrücken Germany
| | - Rolf Müller
- Department of Microbial Natural Products; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology; Saarland University; Saarbrücken Germany
| | - C. Roy D. Lancaster
- Department of Structural Biology; Institute of Biophysics and Center of Human and Molecular Biology (ZHMB); Saarland University; Homburg Germany
| | - Rita Bernhardt
- Institute of Biochemistry; Saarland University; Saarbrücken Germany
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Sanders K, Mol JA, Kooistra HS, Slob A, Galac S. New Insights in the Functional Zonation of the Canine Adrenal Cortex. J Vet Intern Med 2016; 30:741-50. [PMID: 27108660 PMCID: PMC4913559 DOI: 10.1111/jvim.13946] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 02/29/2016] [Accepted: 03/14/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Current understanding of adrenal steroidogenesis is that the production of aldosterone or cortisol depends on the expression of aldosterone synthase (CYP11B2) and 11β-hydroxylase cytochrome P450 (CYP11B1), respectively. However, this has never been studied in dogs, and in some species, a single CYP11B catalyzes both cortisol and aldosterone formation. Analysis of the canine genome provides data of a single CYP11B gene which is called CYP11B2, and a large sequence gap exists near the so-called CYP11B2 gene. OBJECTIVES To investigate the zonal expression of steroidogenic enzymes in the canine adrenal cortex and to determine whether dogs have 1 or multiple CYP11B genes. ANIMALS Normal adrenal glands from 10 healthy dogs. METHODS Zona fasciculata (zF) and zona glomerulosa (zG) tissue was isolated by laser microdissection. The mRNA expression of steroidogenic enzymes and their major regulators was studied with RT-qPCR. Southern blot was performed to determine whether the sequence gap contains a CYP11B gene copy. Immunohistochemistry (IHC) was performed for 17α-hydroxylase/17,20-lyase (CYP17). RESULTS Equal expression (P = .62) of the so-called CYP11B2 gene was found in the zG and zF. Southern blot revealed a single gene. CYP17 expression (P = .05) was significantly higher in the zF compared with the zG, which was confirmed with IHC. CONCLUSIONS AND CLINICAL IMPORTANCE We conclude that there is only 1 CYP11B gene in canine adrenals. The zone-specific production of aldosterone and cortisol is probably due to zone-specific CYP17 expression, which makes it an attractive target for selective inhibition of cortisol synthesis without affecting mineralocorticoid production in the zG.
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Affiliation(s)
- K Sanders
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - J A Mol
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - H S Kooistra
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - A Slob
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - S Galac
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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Affiliation(s)
- Rita Bernhardt
- Lehrstuhl für Biochemie, Universität des Saarlandes, Saarbrücken, Germany
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LI NIU, LI JUAN, DING YU, YU TINGTING, SHEN YONGNIAN, FU QIHUA, SHEN YIPING, HUANG XIAODONG, WANG JIAN. Novel mutations in the CYP11B2 gene causing aldosterone synthase deficiency. Mol Med Rep 2016; 13:3127-32. [DOI: 10.3892/mmr.2016.4906] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 12/11/2015] [Indexed: 11/06/2022] Open
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Nguyen HH, Eiden-Plach A, Hannemann F, Malunowicz EM, Hartmann MF, Wudy SA, Bernhardt R. Phenotypic, metabolic, and molecular genetic characterization of six patients with congenital adrenal hyperplasia caused by novel mutations in the CYP11B1 gene. J Steroid Biochem Mol Biol 2016; 155:126-34. [PMID: 26476331 DOI: 10.1016/j.jsbmb.2015.10.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/13/2015] [Accepted: 10/11/2015] [Indexed: 10/22/2022]
Abstract
Congenital adrenal hyperplasia (CAH) is an autosomal recessive inherited disorder of steroidogenesis. Steroid 11β-hydroxylase deficiency (11β-OHD) due to mutations in the CYP11B1 gene is the second most common form of CAH. In this study, 6 patients suffering from CAH were diagnosed with 11β-OHD using urinary GC-MS steroid metabolomics analysis. The molecular basis of the disorder was investigated by molecular genetic analysis of the CYP11B1 gene, functional characterization of splicing and missense mutations, and analysis of the missense mutations in a computer model of CYP11B1. All patients presented with abnormal clinical signs of hyperandrogenism. Their urinary steroid metabolomes were characterized by excessive excretion rates of metabolites of 11-deoxycortisol as well as metabolites of 11-deoxycorticosterone, and allowed definite diagnosis. Patient 1 carries compound heterozygous mutations consisting of a novel nonsense mutation p.Q102X (c.304C>T) in exon 2 and the known missense mutation p.T318R (c.953C>G) in exon 5. Two siblings (patient 2 and 3) were compound heterozygous carriers of a known splicing mutation c.1200+1G>A in intron 7 and a known missense mutation p.R448H (c.1343G>A) in exon 8. Minigene experiments demonstrated that the c.1200+1G>A mutation caused abnormal pre-mRNA splicing (intron retention). Two further siblings (patient 4 and 5) were compound heterozygous carriers of a novel missense mutation p.R332G (c.994C>G) in exon 6 and the known missense mutation p.R448H (c.1343G>A) in exon 8. A CYP11B1 activity study in COS-1 cells showed that only 11% of the enzyme activity remained in the variant p.R332G. Patient 6 carried a so far not described homozygous deletion g.2470_5320del of 2850 bp corresponding to a loss of the CYP11B1 exons 3-8. The breakpoints of the deletion are embedded into two typical 6 base pair repeats (GCTTCT) upstream and downstream of the gene. Experiments analyzing the influence of mutations on splicing and on enzyme function were applied as complementary procedures to genotyping and provided a rational basis for understanding the clinical phenotype of CAH.
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Affiliation(s)
- Huy-Hoang Nguyen
- Department of Biochemistry, Saarland University, D-66123 Saarbrücken, Campus B2.2, Germany; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Antje Eiden-Plach
- Department of Biochemistry, Saarland University, D-66123 Saarbrücken, Campus B2.2, Germany
| | - Frank Hannemann
- Department of Biochemistry, Saarland University, D-66123 Saarbrücken, Campus B2.2, Germany
| | - Ewa M Malunowicz
- Departments of Biochemistry and Experimental Medicine, The Children's Memorial Health Institute, 04-730 Warsaw, Poland
| | - Michaela F Hartmann
- Steroid Research &Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University, Giessen, Germany
| | - Stefan A Wudy
- Steroid Research &Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University, Giessen, Germany
| | - Rita Bernhardt
- Department of Biochemistry, Saarland University, D-66123 Saarbrücken, Campus B2.2, Germany.
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Schiffer L, Brixius-Anderko S, Hannemann F, Zapp J, Neunzig J, Thevis M, Bernhardt R. Metabolism of Oral Turinabol by Human Steroid Hormone-Synthesizing Cytochrome P450 Enzymes. Drug Metab Dispos 2015; 44:227-37. [DOI: 10.1124/dmd.115.066829] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/07/2015] [Indexed: 01/06/2023] Open
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Fumagalli M, Moltke I, Grarup N, Racimo F, Bjerregaard P, Jorgensen ME, Korneliussen TS, Gerbault P, Skotte L, Linneberg A, Christensen C, Brandslund I, Jorgensen T, Huerta-Sanchez E, Schmidt EB, Pedersen O, Hansen T, Albrechtsen A, Nielsen R. Greenlandic Inuit show genetic signatures of diet and climate adaptation. Science 2015; 349:1343-7. [DOI: 10.1126/science.aab2319] [Citation(s) in RCA: 320] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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