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Liu M, Guo S, Li X, Tian Y, Yu Y, Tang L, Sun Q, Zhang T, Fan M, Zhang L, Xu Y, An J, Gao X, Han L, Zhang L. Semaglutide Alleviates Ovary Inflammation via the AMPK/SIRT1/NF‑κB Signaling Pathway in Polycystic Ovary Syndrome Mice. Drug Des Devel Ther 2024; 18:3925-3938. [PMID: 39247793 PMCID: PMC11380913 DOI: 10.2147/dddt.s484531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Accepted: 08/26/2024] [Indexed: 09/10/2024] Open
Abstract
Background GLP-1 receptor agonists (GLP-1 RA) have been proven to treat several metabolic diseases; however, the effects of GLP-1 RA on polycystic ovary syndrome (PCOS) remain unclear. Here, we aimed to investigate whether semaglutide, a novel GLP-1 RA, could alleviate ovarian inflammation in PCOS mice. Methods Female C57BL/6J mice were subcutaneously injected with dehydroepiandrosterone for 21 days to establish the PCOS model. Then the mice were randomly divided into three groups: PCOS group (n = 6), S-0.42 group (semaglutide 0.42 mg/kg/w, n = 6), and S-0.84 group (semaglutide 0.84 mg/kg/w, n = 6). The remaining six mice were used as controls (NC). After 28 days of intervention, serum sex hormones and inflammatory cytokine levels were measured. Hematoxylin and eosin staining was used to observe the ovarian morphology. Immunohistochemical staining was used to detect the relative expression of CYP19A1, TNF-α, IL-6, IL-1β, and NF-κB in ovaries. CYP17A1 and StAR were detected using immunofluorescence staining. Finally, the relative expressions of AMPK, pAMPK, SIRT1, NF-κB, IκBα, pIκBα, TNF-α, IL-6, and IL-1β were measured using Western blotting. Results First, after intervention with semaglutide, the weight of the mice decreased, insulin resistance improved, and the estrous cycle returned to normal. Serum testosterone and IL-1β levels decreased significantly, whereas estradiol and progestin levels increased significantly. Follicular cystic dilation significantly improved. The expression of TNF-α, IL-6, IL-1β, NF-κB, CYP17A1, and StAR in the ovary was significantly downregulated, whereas CYP19A1 expression was upregulated after the intervention. Finally, we confirmed that semaglutide alleviates ovarian tissue inflammation and improves PCOS through the AMPK/SIRT1/NF-κB signaling pathway. Conclusion Semaglutide alleviates ovarian inflammation via the AMPK/SIRT1/NF‑κB signaling pathway in PCOS mice.
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Affiliation(s)
- Mei Liu
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Sili Guo
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Xiaohan Li
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Yang Tian
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Yanjie Yu
- Department of Ultrasound Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Lili Tang
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Qimei Sun
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Ting Zhang
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Mingwei Fan
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Lili Zhang
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Yingjiang Xu
- Department of Interventional Vascular Surgery, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Jiajia An
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Xiangqian Gao
- Department of Pathology, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Lei Han
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Lei Zhang
- Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
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Liu X, Guo X, Zhang T, Duan J, Zhang L, Wang M, Li Y, Shen Z, Mao J. Testosterone maintains male longevity and female reproduction in Chrysopa pallens. Heliyon 2024; 10:e32478. [PMID: 38933978 PMCID: PMC11201114 DOI: 10.1016/j.heliyon.2024.e32478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 05/26/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Vertebrate testosterone, an androgen present in the testes, is essential for male fertility. Vertebrate-type steroid hormones have been identified in insects, but their function remains unknown. Insect vitellogenin (Vg) is usually a female-specific protein involved in reproductive processes. However, males of some species, such as the green lacewing Chrysopa pallens, have Vg. Here, we demonstrated that the knockdown of C. pallens male Vg by RNAi significantly shortened the lifespan of males, suppressed the reproduction of post-mating females, and strikingly reduced the abundance of several immune-related compounds, including testosterone. LC-MS/MS revealed that C. pallens male testosterone had the same structure and molecular mass as vertebrate testosterone. Topical testosterone application partially restored the lifespan of Vg-deficient males and the reproduction of post-mating females. These results suggest that vertebrate-type testosterone maintains male longevity and female reproduction under the control of the male Vg in C. pallens.
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Affiliation(s)
- Xiaoping Liu
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Xingkai Guo
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Tingting Zhang
- School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, PR China
| | - Jiaqi Duan
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Lisheng Zhang
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Mengqing Wang
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Yuyan Li
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Zhongjian Shen
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Jianjun Mao
- Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
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3
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Wang P, Liu Z, Zhang X, Huo H, Wang L, Dai H, Yang F, Zhao G, Huo J. Integrated analysis of lncRNA, miRNA and mRNA expression profiles reveals regulatory pathways associated with pig testis function. Genomics 2024; 116:110819. [PMID: 38432498 DOI: 10.1016/j.ygeno.2024.110819] [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: 11/02/2023] [Revised: 02/12/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Long noncoding RNA (lncRNA) and microRNA (miRNA) are known to play pivotal roles in mammalian testicular function and spermatogenesis. However, their impact on porcine male reproduction has yet to be well unraveled. Here, we sequenced and identified lncRNA and miRNA expressed in the testes of Chinese indigenous Banna mini-pig inbred line (BMI) and introduced Western Duroc (DU) and Large White (LW) pigs. By pairwise comparison (BMI vs DU, BMI vs LW, and DU vs LW), we found the gene expression differences in the testes between Chinese local pigs and introduced Western commercial breeds were more striking than those between introduced commercial breeds. Furthermore, we found 1622 co-differentially expressed genes (co-DEGs), 122 co-differentially expressed lncRNAs (co-DELs), 39 co-differentially expressed miRNAs (co-DEMs) in BMI vs introduced commercial breeds (DU and LW). Functional analysis revealed that these co-DEGs and co-DELs/co-DEMs target genes were enriched in male sexual function pathways, including MAPK, AMPK, TGF-β/Smad, Hippo, NF-kappa B, and PI3K/Akt signaling pathways. Additionally, we established 10,536 lncRNA-mRNA, 11,248 miRNA-mRNA pairs, and 62 ceRNA (lncRNA-miRNA-mRNA) networks. The ssc-miR-1343 had the most interactive factors in the ceRNA network, including 20 mRNAs and 3 lncRNAs, consisting of 56 ceRNA pairs. These factors played extremely important roles in the regulation of testis function as key nodes in the interactive regulatory network. Our results provide insight into the functional roles of lncRNAs and miRNAs in porcine testis and offer a valuable resource for understanding the differences between Chinese indigenous and introduced Western pigs.
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Affiliation(s)
- Pei Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zhipeng Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xia Zhang
- College of Life Science, Lyuliang University, Lvliang 033001, China
| | - Hailong Huo
- Yunnan Open University, Kunming 650500, China
| | - Lina Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Hongmei Dai
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Fuhua Yang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Guiying Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
| | - Jinlong Huo
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
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Janowska S, Holota S, Lesyk R, Wujec M. Aromatase Inhibitors as a Promising Direction for the Search for New Anticancer Drugs. Molecules 2024; 29:346. [PMID: 38257259 PMCID: PMC10819800 DOI: 10.3390/molecules29020346] [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: 12/19/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Aromatase is an enzyme that plays a crucial role in the biosynthesis of estrogens, which are hormones that contribute to the growth of certain types of breast cancer. In particular, aromatase catalyzes the conversion of androgens (male hormones) into estrogens (female hormones) in various tissues, including the adrenal glands, ovaries, and adipose tissue. Given the role of estrogen in promoting the growth of hormone-receptor-positive breast cancers, aromatase has become an important molecular target for the development of anticancer agents. Aromatase inhibitors can be classified into two main groups based on their chemical structure: steroidal and non-steroidal inhibitors. This work presents a review of the literature from the last ten years regarding the search for new aromatase inhibitors. We present the directions of search, taking into account the impact of structure modifications on anticancer activity.
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Affiliation(s)
- Sara Janowska
- Department of Pathobiochemistry and Interdisciplinary Applications of Ion Chromatography, Biomedical Sciences, Medical University of Lublin, 1 Chodzki Street, 20-093 Lublin, Poland
| | - Serhii Holota
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine; (S.H.); (R.L.)
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine; (S.H.); (R.L.)
| | - Monika Wujec
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki Street, 20-093 Lublin, Poland
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5
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Kelly E, Petersen LH, Huggett D, Hala D. Reaction thermodynamics as a constraint on piscine steroidogenesis flux distributions. Comp Biochem Physiol A Mol Integr Physiol 2024; 287:111533. [PMID: 37844836 DOI: 10.1016/j.cbpa.2023.111533] [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: 08/25/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
While a considerable amount is known of the dynamics of piscine steroidogenesis during reproduction, the influence of thermodynamics constraints on its control has not been studied. In this manuscript, Gibbs free energy change of reactions was calculated for piscine steroidogenesis using the in silico eQuilibrator thermodynamics calculator. The analysis identified cytochrome P450 (cyp450) oxidoreductase reactions to have more negative Gibbs free energy changes relative to hydroxysteroid (HSD) and transferase reactions. In addition, a more favorable Gibbs free energy change was predicted for the Δ5 (cyp450 catalyzed) vs. Δ4 (HSD catalyzed) steroidogenesis branch-point, which converts pregnenolone to 17α-hydroxypregnenolone or progesterone respectively. Comparison of in silico predictions with in vivo experimentally measured flux across the Δ5 vs. Δ4 branch-point showed higher flux through the thermodynamically more favorable Δ5 pathway in reproducing or spawning vs. non-spawning fathead minnows (Pimephales promelas). However, the exposure of fish to endocrine stressors such as hypoxia or the synthetic estrogen 17α-ethinylestradiol (EE2), resulted in increased flux through both Δ5 and Δ4 pathways, indicating an adaptive response to increase steroidogenic redundancy. The correspondence of elevated flux through the Δ5 branch-point in spawning fish indicated the use of a thermodynamically favorable pathway to optimize steroid hormone productions during reproduction. We hypothesize that such selective use of a thermodynamically favorable steroidogenesis pathway may conserve reduced equivalents or transcriptional costs for investment to other biosynthetic or catabolic reactions to support reproduction. If generalizable, such an approach can provide novel insights into the structural principles and regulation of steroidogenesis or other metabolic pathways.
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Affiliation(s)
- E Kelly
- Binghamton University, 4400 Vestal Parkway E, Binghamton, NY, USA; Department of Marine Biology, Texas A&M University at Galveston, TX, USA
| | - L H Petersen
- Department of Marine Biology, Texas A&M University at Galveston, TX, USA
| | - D Huggett
- University of North Texas, Denton, TX, USA
| | - D Hala
- Department of Marine Biology, Texas A&M University at Galveston, TX, USA.
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6
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Zhang CL, Zhang J, Tuersuntuoheti M, Zhou W, Han Z, Li X, Yang R, Zhang L, Zheng L, Liu S. Landscape genomics reveals adaptive divergence of indigenous sheep in different ecological environments of Xinjiang, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166698. [PMID: 37683864 DOI: 10.1016/j.scitotenv.2023.166698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Sheep are important livestock animals that have evolved under various ecological pressures. Xinjiang is a region with diverse and harsh environments that have shaped many local sheep breeds with unique characteristics and environmental adaptability. However, these breeds are losing ecological flexibility due to the promotion of intensive farming practices. Here we sequenced 14 local sheep breeds from Xinjiang and analyzed their genetic structure and gene flow with other sheep breeds from neighboring regions. The Tibetan Plateau was the geographic origin of Xinjiang native sheep evolution. We performed genome-environment association analysis and identified Bio9: Mean Temperature of Driest Quarter and Bio15: Precipitation Seasonality as the key environmental factors affecting Xinjiang local sheep and the key genes involved in their survival and adaptation. We classified Xinjiang native sheep breeds into six groups based on their differential genes by pairwise selective sweep analysis and Community Network Analysis. We analyzed transcriptome expression data of 832 sheep tissues and detected tissue-specific enrichment of six group-specific genes in different biological systems. Our results revealed the genetic basis of year-round estrus, drought tolerance, hypoxia resistance, and cold tolerance traits of Xinjiang sheep breeds. Moreover, we proposed conservation strategies for Xinjiang local sheep breeds and provided theoretical guidance for breeding new sheep breeds under global extreme environments.
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Affiliation(s)
- Cheng-Long Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Jihu Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Mirenisa Tuersuntuoheti
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Wen Zhou
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Zhipeng Han
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Xiaopeng Li
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Ruizhi Yang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Lulu Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Langman Zheng
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Shudong Liu
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China.
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7
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Tan Y, Tan S, Ren T, Yu L, Li P, Xie G, Chen C, Yuan M, Xu Q, Chen Z. Transcriptomics Reveals the Mechanism of Rosa roxburghii Tratt Ellagitannin in Improving Hepatic Lipid Metabolism Disorder in db/db Mice. Nutrients 2023; 15:4187. [PMID: 37836471 PMCID: PMC10574348 DOI: 10.3390/nu15194187] [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: 08/17/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
A complex metabolic disorder, type 2 diabetes, was investigated to explore the impact of ellagitannin, derived from Rosa roxburghii Tratt (RTT), on liver lipid metabolism disorders in db/db mice. The findings demonstrated that both RTT ellagitannin (C1) and RTT ellagic acid (C4) considerably decelerated body mass gain in db/db mice, significantly decreased fasting blood glucose (FBG) levels, and mitigated the aggregation of hepatic lipid droplets. At LDL-C levels, C1 performed substantially better than the C4 group, exhibiting no significant difference compared to the P (positive control) group. An RNA-seq analysis further disclosed that 1245 differentially expressed genes were identified in the livers of experimental mice following the C1 intervention. The GO and KEGG enrichment analysis revealed that, under ellagitannin intervention, numerous differentially expressed genes were significantly enriched in fatty acid metabolic processes, the PPAR signaling pathway, fatty acid degradation, fatty acid synthesis, and other lipid metabolism-related pathways. The qRT-PCR and Western blot analysis results indicated that RTT ellagitannin notably upregulated the gene and protein expression levels of peroxisome proliferator-activated receptor alpha (PPARα) and peroxisome proliferator-activated receptor gamma (PPARγ). In contrast, it downregulated the gene and protein expression levels of sterol regulatory element-binding protein (SREBP), recombinant fatty acid synthase (FASN), and acetyl-CoA carboxylase (ACC). Therefore, RTT ellagitannin can activate the PPAR signaling pathway, inhibit fatty acid uptake and de novo synthesis, and ameliorate hepatic lipid metabolism disorder in db/db mice, thus potentially aiding in maintaining lipid homeostasis in type 2 diabetes.
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Affiliation(s)
- Yunyun Tan
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Shuming Tan
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Tingyuan Ren
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering and College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Lu Yu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Pei Li
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Qiandongnan Engineering and Technology Research Center for Comprehensive Utilization of National Medicine, Kaili University, Kaili 556018, China
| | - Guofang Xie
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Chao Chen
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Meng Yuan
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Qing Xu
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Zhen Chen
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
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8
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Zhang R, Yao M, Ma H, Xiao W, Wang Y, Yuan Y. Modular Coculture to Reduce Substrate Competition and Off-Target Intermediates in Androstenedione Biosynthesis. ACS Synth Biol 2023; 12:788-799. [PMID: 36857753 DOI: 10.1021/acssynbio.2c00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Substrate competition within a metabolic network constitutes a common challenge in microbial biosynthesis system engineering, especially if indispensable enzymes can produce multiple intermediates from a single substrate. Androstenedione (4AD) is a central intermediate in the production of a series of steroidal pharmaceuticals; however, its yield via the coexpression of 3β-hydroxysteroid dehydrogenase (3β-HSD) and 17α-hydroxylase/17,20-lyase (CYP17A1) in a microbial chassis affords a nonlinear pathway in which these enzymes compete for substrates and produce structurally similar unwanted intermediates, thereby reducing 4AD yields. To avoid substrate competition, we split the competing 3β-HSD and CYP17A1 pathway components into two separate Yarrowia lipolytica strains to linearize the pathway. This spatial segregation increased substrate availability for 3β-HSD in the upstream strain, consequently decreasing the accumulation of the unwanted intermediate 17-hydroxypregnenolone (17OHP5) from 94.8 ± 4.4% in single-chassis monocultures to 24.8 ± 12.6% in cocultures of strains expressing 3β-HSD and CYP17A1 separately. Orthologue screening to increase CYP17A1 catalytic efficiency and the preferential production of desired intermediates increased the biotransformation capacity in the downstream pathway, further decreasing 17OHP5 accumulation to 3.9%. Furthermore, nitrogen limitation induced early 4AD accumulation (final titer, 7.71 mg/L). This study provides a framework for reducing intrapathway competition between essential enzymes during natural product biosynthesis as well as a proof-of-concept platform for linear steroid production.
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Affiliation(s)
- Ruosi Zhang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Mingdong Yao
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Haidi Ma
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Wenhai Xiao
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China.,Georgia Tech Shenzhen Institute, Tianjin University, Tangxing Road 133, Nanshan District, Shenzhen 518071, China
| | - Ying Wang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Yingjin Yuan
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
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9
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Wang P, Zhang X, Huo H, Li W, Liu Z, Wang L, Li L, Sun YH, Huo J. Transcriptomic analysis of testis and epididymis tissues from Banna mini-pig inbred line boars with single-molecule long-read sequencing†. Biol Reprod 2023; 108:465-478. [PMID: 36477198 DOI: 10.1093/biolre/ioac216] [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: 02/09/2022] [Revised: 05/04/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022] Open
Abstract
In mammals, testis and epididymis are critical components of the male reproductive system for androgen production, spermatogenesis, sperm transportation, as well as sperm maturation. Here, we report single-molecule real-time sequencing data from the testis and epididymis of the Banna mini-pig inbred line (BMI), a promising laboratory animal for medical research. We obtained high-quality full-length transcriptomes and identified 9879 isoforms and 8761 isoforms in the BMI testis and epididymis, respectively. Most of the isoforms we identified have novel exon structures that will greatly improve the annotation of testis- and epididymis-expressed genes in pigs. We also found that 3055 genes (over 50%) were shared between BMI testis and epididymis, indicating widespread expression profiles of genes related to reproduction. We characterized extensive alternative splicing events in BMI testis and epididymis and showed that 96 testis-expressed genes and 79 epididymis-expressed genes have more than six isoforms, revealing the complexity of alternative splicing. We accurately defined the transcribed isoforms in BMI testis and epididymis by combining Pacific Biotechnology Isoform-sequencing (PacBio Iso-Seq) and Illumina RNA Sequencing (RNA-seq) techniques. The refined annotation of some key genes governing male reproduction will facilitate further understanding of the molecular mechanisms underlying BMI male sterility. In addition, the high-confident identification of 548 and 669 long noncoding RNAs (lncRNAs) in these two tissues has established a candidate gene set for future functional investigations. Overall, our study provides new insights into the role of the testis and epididymis during BMI reproduction, paving the path for further studies on BMI male infertility.
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Affiliation(s)
- Pei Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Xia Zhang
- College of Life Science, Lyuliang University, Lvliang, China
| | - Hailong Huo
- Yunnan Vocational and Technical college of Agriculture, Kunming, China
| | - Weizhen Li
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Zhipeng Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Lina Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Luogang Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Yu H Sun
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - Jinlong Huo
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
- Department of Biology, University of Rochester, Rochester, NY, USA
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10
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Somin S, Kulasiri D, Samarasinghe S. Alleviating the unwanted effects of oxidative stress on Aβ clearance: a review of related concepts and strategies for the development of computational modelling. Transl Neurodegener 2023; 12:11. [PMID: 36907887 PMCID: PMC10009979 DOI: 10.1186/s40035-023-00344-2] [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: 11/07/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023] Open
Abstract
Treatment for Alzheimer's disease (AD) can be more effective in the early stages. Although we do not completely understand the aetiology of the early stages of AD, potential pathological factors (amyloid beta [Aβ] and tau) and other co-factors have been identified as causes of AD, which may indicate some of the mechanism at work in the early stages of AD. Today, one of the primary techniques used to help delay or prevent AD in the early stages involves alleviating the unwanted effects of oxidative stress on Aβ clearance. 4-Hydroxynonenal (HNE), a product of lipid peroxidation caused by oxidative stress, plays a key role in the adduction of the degrading proteases. This HNE employs a mechanism which decreases catalytic activity. This process ultimately impairs Aβ clearance. The degradation of HNE-modified proteins helps to alleviate the unwanted effects of oxidative stress. Having a clear understanding of the mechanisms associated with the degradation of the HNE-modified proteins is essential for the development of strategies and for alleviating the unwanted effects of oxidative stress. The strategies which could be employed to decrease the effects of oxidative stress include enhancing antioxidant activity, as well as the use of nanozymes and/or specific inhibitors. One area which shows promise in reducing oxidative stress is protein design. However, more research is needed to improve the effectiveness and accuracy of this technique. This paper discusses the interplay of potential pathological factors and AD. In particular, it focuses on the effect of oxidative stress on the expression of the Aβ-degrading proteases through adduction of the degrading proteases caused by HNE. The paper also elucidates other strategies that can be used to alleviate the unwanted effects of oxidative stress on Aβ clearance. To improve the effectiveness and accuracy of protein design, we explain the application of quantum mechanical/molecular mechanical approach.
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Affiliation(s)
- Sarawoot Somin
- Centre for Advanced Computational Solutions (C-fACS), Lincoln University, Christchurch, 7647, New Zealand.,Department of Wine, Food and Molecular Biosciences, Lincoln University, Christchurch, 7647, New Zealand
| | - Don Kulasiri
- Centre for Advanced Computational Solutions (C-fACS), Lincoln University, Christchurch, 7647, New Zealand. .,Department of Wine, Food and Molecular Biosciences, Lincoln University, Christchurch, 7647, New Zealand.
| | - Sandhya Samarasinghe
- Centre for Advanced Computational Solutions (C-fACS), Lincoln University, Christchurch, 7647, New Zealand
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11
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Rational design of thermophilic CYP119 for progesterone hydroxylation by in silico mutagenesis and docking screening. J Mol Graph Model 2023; 118:108323. [PMID: 36137435 DOI: 10.1016/j.jmgm.2022.108323] [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: 09/15/2021] [Revised: 08/12/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022]
Abstract
Steroid-based chemicals can affect the metabolism, immune functions, and development of sexual characteristics. Because of these effects, steroid derivatives are widely used in the pharmaceutical industry. Progesterone is a steroid-based hormone that mainly controls the ovulation period of women but is also a precursor molecule for the synthesis of important hormones like testosterone and cortisone. Cytochrome P450 (CYP) enzymes are important for the production of hydroxyprogesterones in the industry since they can catalyze regio- and enantioselective hydroxylation reactions. Although human CYP enzymes can catalyze hydroxyprogesterone synthesis with high selectivity, these enzymes are membrane bound, which limits their application for industrial production. CYP119 is a soluble and thermophilic enzyme from the archaea Sulfolobus acidocaldarius. Even though the native substrate of the enzyme is not known, CYP119 can catalyze styrene epoxidation, lauric acid hydroxylation, and Amplex®Red peroxidation. In this work, an in silico mutagenesis approach was used to design CYP119 mutants with high progesterone affinity. Energy scores of progesterone docking simulations were used for the design and elimination of single, double, and triple mutants of CYP119. Among designed 674 mutants, five of them match the criteria for progesterone hydroxylation. The most common mutation of these five mutants, L69G mutant was analyzed using independent molecular dynamics (MD) simulations in comparison with the wild-type (WT) enzyme. L69G CYP119, was expressed and isolated from Escherichia coli; it showed 800-fold higher affinity for progesterone compared to WT CYP119. L69G CYP119 also catalyzed progesterone hydroxylation. The novel designed enzyme L69G CYP119 is a potential versatile biocatalyst for progesterone hydroxylation that is expected to be stable under industrial production conditions.
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12
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Discovery of 16-Androstenes (Androstenone and Androstenol), Their Synthesis Pathway, and Possible Role in Reproduction of Mouse Deer (Moschiola indica). Cells 2022. [DOI: 10.3390/cells11233837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
We discovered odorous 16-androstenes (Androstenone and Androstenol) in endangered mouse deer during a captive breeding program. This study examined the molecular characteristics, their synthesis pathway, and the possible functional role of these compounds in the reproduction of mouse deer. CYP17A1 and CYB5 genes were cloned and expressed in HEK-293, COS-7 cell lines, and gonads of mouse deer to investigate the CYP17A1 gene’s andien-β-synthase activity towards the synthesis of 16-androstenes in mouse deer. An enzyme immunoassay was further developed and standardized to measure fecal androstenone during the reproductive cycles of mouse deer. Results showed that the mouse deer CYP17A1 gene possesses andien-β-synthase activity and could transform pregnenolone into 5,16-androstadien-3β-ol. The expression of the CYP17A1 gene upregulated in the testis and ovary compared to other tissues in mouse deer. Significantly elevated androstenone and estrogens were recorded prior to delivery and postpartum estrus/mating in mouse deer. Further, there were weak correlations between fecal androstenone and estrogens/androgens in mouse deer during the breeding season. These findings suggest that androstenone probably plays a role in the reproductive activities of mouse deer. This knowledge can be used for captive breeding programs of mouse deer in India and elsewhere.
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13
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Shiota M, Endo S, Blas L, Fujimoto N, Eto M. Steroidogenesis in castration-resistant prostate cancer. Urol Oncol 2022; 41:240-251. [PMID: 36376200 DOI: 10.1016/j.urolonc.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 11/13/2022]
Abstract
Castration resistance is in part attributable to aberrant activation of androgen receptor (AR) signaling by the intracrine activation of androgen precursors derived from adrenal glands. To overcome this, novel AR pathway inhibitors (ARPIs) that suppress androgen synthesis by CYP17 inhibition or AR activation by antiandrogen effects have been developed. However, primary or acquired resistance to these ARPIs occurs; in turn attributable, at least in part, to the maintained androgen milieu despite intensive suppression of AR signaling similar to castration resistance. In addition to the classical pathway to produce potent androgens such as testosterone and dihydrotestosterone, the alternative pathway and the backdoor pathway which bypasses testosterone to produce dihydrotestosterone have been shown to play a role in intratumor steroidogenesis. Furthermore, the 11β-hydroxyandrostenedione pathway to produce the potent oxygenated androgens 11-ketotestosterone and 11-ketodihydrotestosterone has been suggested to be functional in prostate cancer. These steroidogenesis pathways produce potent androgens that promote tumor resistance to endocrine therapy including novel ARPIs. Here, we overview the current evidence on the pathological androgen milieu by altered metabolism and transport in prostate cancer, leading to resistance to endocrine therapy.
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14
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Liu Y, Denisov I, Gregory M, Sligar SG, Kincaid JR. Importance of Asparagine 202 in Manipulating Active Site Structure and Substrate Preference for Human CYP17A1. Biochemistry 2022; 61:583-594. [PMID: 35287432 PMCID: PMC9972851 DOI: 10.1021/acs.biochem.2c00023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The multifunctional cytochrome P450 17A1 (CYP17A1) plays a crucial role in human steroid hormone synthesis (UniProtKB─P05093). It first carries out standard monooxygenase chemistry, converting pregnenolone (PREG) and progesterone (PROG) into 17OH-PREG and 17OH-PROG, utilizing a "Compound I" to initiate hydrogen abstraction and radical recombination in the classic "oxygen rebound" mechanism. Additionally, these hydroxylated products also serve as substrates in a second oxidative cycle which cleaves the 17-20 carbon-carbon bond to form dehydroepiandrosterone and androstenedione, which are key precursors in the generation of powerful androgens and estrogens. Interestingly, in humans, with 17OH-PREG, this so-called lyase reaction is more efficient than with 17OH-PROG, based on Kcat/Km values. In the present work, the asparagine residue at 202 position was replaced by serine, an alteration which can affect substrate orientation and control substrate preference for the lyase reaction. First, we report studies of solvent isotope effects for the N202S CYP17A1 mutant in the presence of 17OH-PREG and 17OH-PROG, which suggest that the ferric peroxo species is the predominant catalytically active intermediate in the lyase step. This conclusion is further supported by employing a combination of cryoradiolysis and resonance Raman techniques to successfully trap and structurally characterize the key reaction intermediates, including the peroxo, the hydroperoxo, and the crucial peroxo-hemiketal intermediate. Collectively, these studies show that the mutation causes active site structural changes that alter the H-bonding interactions with the key Fe-O-O fragment and the degree of protonation of the reactive ferric peroxo intermediate, thereby impacting lyase efficiency.
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Affiliation(s)
- Yilin Liu
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233, United States
| | - Ilia Denisov
- Departments of Chemistry and Biochemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Michael Gregory
- Departments of Chemistry and Biochemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Stephen G Sligar
- Departments of Chemistry and Biochemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - James R Kincaid
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233, United States
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15
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Zhang W, Cui N, Su F, Wang Y, Yang B, Sun Y, Guan W, Kuang H, Wang Q. Comprehensive Metabolomics and Network Pharmacology to Explore the Mechanism of 5-Hydroxymethyl Furfural in the Treatment of Blood Deficiency Syndrome. Front Pharmacol 2022; 12:811331. [PMID: 35310893 PMCID: PMC8931835 DOI: 10.3389/fphar.2021.811331] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
Radix Rehmanniae (RR, from Radix Rehmanniae (Gaertn.) DC.) is a natural medicine used in traditional Chinese medicine (TCM) since ancient times for the treatment of blood disorders. RR is steamed to get Rehmanniae Radix Praeparata (RP), which has a tonic effect on blood; the content of 5-hydromethylfurfural (5-HMF) increases more than four times after steaming. Studies have shown that 5-HMF has positive pharmacological effects on cardiovascular and hematological disorders. This study aimed to explore and verify the impact of 5-HMF on rats with chemotherapy-induced blood deficiency syndrome (BDS). Rats were given cyclophosphamide (CP) and acetophenhydrazine (APH) to induce BDS, the coefficients of some organs (liver, spleen, and kidney) were measured, and a routine blood test examined the coefficients of several peripheral blood cells. Metabolomics and network pharmacology were combined to find important biomarkers, targets, and pathways. Western blot was used to detect the expression of CYP17A1 and HSD3B1 proteins in the spleen. All these findings suggested that the 5-HMF significantly increased the number of peripheral blood cells and reversed splenomegaly in rats. In addition, 5-HMF upregulated CYP17A1 and HSD3B1 protein expression in splenic tissues. Also, 5-HMF ameliorated chemotherapy-induced BDS in rats, and its therapeutic mechanism might depend on steroid hormone biosynthesis and other pathways. It acts on blood deficiency via multiple targets and pathways, which is unique to Chinese medicine.
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Affiliation(s)
- Wensen Zhang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Na Cui
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Fazhi Su
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Yangyang Wang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Bingyou Yang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Yanping Sun
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Wei Guan
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
| | - Haixue Kuang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin, China
- *Correspondence: Haixue Kuang, ; Qiuhong Wang,
| | - Qiuhong Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangdong, China
- *Correspondence: Haixue Kuang, ; Qiuhong Wang,
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16
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Zhao X, Ji Z, Xuan R, Wang A, Li Q, Zhao Y, Chao T, Wang J. Characterization of the microRNA Expression Profiles in the Goat Kid Liver. Front Genet 2022; 12:794157. [PMID: 35082837 PMCID: PMC8784682 DOI: 10.3389/fgene.2021.794157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
The liver is the largest digestive gland in goats with an important role in early metabolic function development. MicroRNAs (miRNA) are crucial for regulating the development and metabolism in the goat liver. In the study, we sequenced the miRNAs in the liver tissues of the goat kid to further research their regulation roles in early liver development. The liver tissues were procured at 5-time points from the Laiwu black goats of 1 day (D1), 2 weeks (W2), 4 weeks (W4), 8 weeks (W8), and 12 weeks (W12) after birth, respectively with five goats per time point, for a total of 25 goats. Our study identified 214 differential expression miRNAs, and the expression patterns of 15 randomly selected miRNAs were examined among all five age groups. The Gene ontology annotation results showed that differential expression miRNA (DE miRNA) target genes were significantly enriched in the fatty acid synthase activity, toxin metabolic process, cell surface, and antibiotic metabolic process. The KEGG analysis result was significantly enriched in steroid hormone synthesis and retinol metabolism pathways. Further miRNA-mRNA regulation network analysis reveals 9 differently expressed miRNA with important regulation roles. Overall, the DE miRNAs were mainly involved in liver development, lipid metabolism, toxin related metabolism-related biological process, and pathways. Our results provide new information about the molecular mechanisms and pathways in the goat kid liver development.
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Affiliation(s)
- Xiaodong Zhao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Zhibin Ji
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Rong Xuan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Aili Wang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, China
| | - Qing Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Yilin Zhao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Tianle Chao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Jianmin Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
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17
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Liu Y, Grinkova Y, Gregory MC, Denisov IG, Kincaid JR, Sligar SG. Mechanism of the Clinically Relevant E305G Mutation in Human P450 CYP17A1. Biochemistry 2021; 60:3262-3271. [PMID: 34662099 PMCID: PMC8822902 DOI: 10.1021/acs.biochem.1c00282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Steroid metabolism in humans originates from cholesterol and involves several enzyme reactions including dehydrogenation, hydroxylation, and carbon-carbon bond cleavage that occur at regio- and stereo-specific points in the four-membered ring structure. Cytochrome P450s occur at critical junctions that control the production of the male sex hormones (androgens), the female hormones (estrogens) as well as the mineralocorticoids and glucocorticoids. An important branch point in human androgen production is catalyzed by cytochrome P450 CYP17A1 and involves an initial Compound I-mediated hydroxylation at the 17-position of either progesterone (PROG) or pregnenolone (PREG) to form 17-hydroxy derivatives, 17OH-PROG and 17OH-PREG, with approximately similar efficiencies. Subsequent processing of the 17-hydroxy substrates involves a C17-C20 bond scission (lyase) activity that is heavily favored for 17OH-PREG in humans. The mechanism for this lyase reaction has been debated for several decades, some workers favoring a Compound I-mediated process, with others arguing that a ferric peroxo- is the active oxidant. Mutations in CYP17A1 can have profound clinical manifestations. For example, the replacement of the glutamic acid side with a glycine chain at position 305 in the CYP17A1 structure causes a clinically relevant steroidopathy; E305G CYP17A1 displays a dramatic decrease in the production of dehydroepiandrosterone from pregnenolone but surprisingly increases the activity of the enzyme toward the formation of androstenedione from progesterone. To better understand the functional consequences of this mutation, we self-assembled wild-type and the E305G mutant of CYP17A1 into nanodiscs and examined the detailed catalytic mechanism. We measured substrate binding, spin state conversion, and solvent isotope effects in the hydroxylation and lyase pathways for these substrates. Given that, following electron transfer, the ferric peroxo- species is the common intermediate for both mechanisms, we used resonance Raman spectroscopy to monitor the positioning of important hydrogen-bonding interactions of the 17-OH group with the heme-bound peroxide. We discovered that the E305G mutation changes the orientation of the lyase substrate in the active site, which alters a critical hydrogen bonding of the 17-alcohol to the iron-bound peroxide. The observed switch in substrate specificity of the enzyme is consistent with this result if the hydrogen bonding to the proximal peroxo oxygen is necessary for a proposed nucleophilic peroxoanion-mediated mechanism for CYP17A1 in carbon-carbon bond scission.
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Affiliation(s)
- Yilin Liu
- Department of Chemistry, Marquette University, 1414W Clybourn Street, Milwaukee, Wisconsin 53233, United States
| | | | | | | | - James R Kincaid
- Department of Chemistry, Marquette University, 1414W Clybourn Street, Milwaukee, Wisconsin 53233, United States
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18
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Yang J, Peng G, Shu F, Dong D, Zheng X, Zhu C, Li X, Ma J, Pan C, Yang F, Dong W. Characteristics of steroidogenesis-related factors in the musk gland of Chinese forest musk deer (Moschus berezovskii). J Steroid Biochem Mol Biol 2021; 212:105916. [PMID: 34010686 DOI: 10.1016/j.jsbmb.2021.105916] [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: 01/25/2021] [Revised: 04/25/2021] [Accepted: 05/09/2021] [Indexed: 10/21/2022]
Abstract
Musk secreted by Chinese forest musk deer (FMD; Moschus berezovskii) is a highly valuable ingredient in the fields of perfumery and medicine, and the main factor affecting the production of musk is the androgen level of male FMD. To clarify whether the musk gland of FMD can synthesize androgen, we compared and analyzed the expression patterns of steroid hormone biosynthesis-related genes in the musk gland and testis of FMD by RNA-seq and RT-qPCR. We obtained 33,308 and 38,602 unigenes from the musk gland and testis, respectively, and 26,780 co-expressed unigenes. Analysis of co-expressed genes revealed that 12,647 genes were annotated to 11,484 Gene Ontology terms and 10,941 genes were annotated to 6120 pathways, including several pathways important in metabolic and synthetic activity. Next, 21 steroid hormone synthesis-related genes were screened from the transcriptome of the musk gland of 4-month-old FMD. The expression levels of three key genes of steroid hormone biosynthesis (CYP11A1, CYP17A1, and HSD3B) in the musk gland differed from their expression levels in the testis based on RT-qPCR. Furthermore, immunohistochemistry indicated that CYP11A1, CYP17A1, and HSD3B were localized in the glandular tubular columnar cells of the musk gland. These results suggested that the musk gland of male FMD has the potential to locally synthesize steroid hormone and thus plays a critically important role in musk secretion.
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Affiliation(s)
- Jinmeng Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guofan Peng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Feng Shu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Daqian Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xueli Zheng
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chao Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiang Li
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jian Ma
- Shaanxi Reed Musk Deer Industry Co., Ltd., Meixian, Shaanxi, 722307, China
| | - Chuanying Pan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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19
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Chernoff M, Tong L, Demanelis K, Vander Griend D, Ahsan H, Pierce BL. Genetic Determinants of Reduced Arsenic Metabolism Efficiency in the 10q24.32 Region Are Associated With Reduced AS3MT Expression in Multiple Human Tissue Types. Toxicol Sci 2021; 176:382-395. [PMID: 32433756 DOI: 10.1093/toxsci/kfaa075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Approximately 140 million people worldwide are exposed to inorganic arsenic through contaminated drinking water. Chronic exposure increases risk for cancers as well as cardiovascular, respiratory, and neurologic diseases. Arsenic metabolism involves the AS3MT (arsenic methyltransferase) gene, and arsenic metabolism efficiency (AME, measured as relative concentrations of arsenic metabolites in urine) varies among individuals. Inherited genetic variation in the 10q24.32 region, containing AS3MT, influences AME, but the mechanisms remain unclear. To better understand these mechanisms, we use tissue-specific expression data from GTEx (Genotype-tissue Expression project) to identify cis-eQTLs (expression quantitative trait loci) for AS3MT and other nearby genes. We combined these data with results from a genome-wide association study of AME using "colocalization analysis," to determine if 10q24.32 SNPs (single nucleotide polymorphisms) that affect AME also affect expression of AS3MT or nearby genes. These analyses identified cis-eQTLs for AS3MT in 38 tissue types. Colocalization results suggest that the casual variant represented by AME lead SNP rs4919690 impacts expression of AS3MT in 13 tissue types (> 80% probability). Our results suggest this causal SNP also regulates/coregulates expression of nearby genes: BORCS7 (43 tissues), NT5C2 (2 tissues), CYP17A1-AS1 (1 tissue), and RP11-724N1.1 (1 tissue). The rs4919690 allele associated with decreased AME is associated with decreased expression of AS3MT (and other coregulated genes). Our study provides a potential biological mechanism for the association between 10q24.32 variation and AME and suggests that the causal variant, represented by rs4919690, may impact AME (as measured in urine) through its effects on arsenic metabolism occurring in multiple tissue types.
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Affiliation(s)
- Meytal Chernoff
- The Department of Public Health Sciences, The University of Chicago, Chicago, Illinois 60637 - 1447.,The Interdisciplinary Scientist Training Program, The University of Chicago, Chicago, Illinois 60637
| | - Lin Tong
- The Department of Public Health Sciences, The University of Chicago, Chicago, Illinois 60637 - 1447
| | - Kathryn Demanelis
- The Department of Public Health Sciences, The University of Chicago, Chicago, Illinois 60637 - 1447
| | - Donald Vander Griend
- The Department of Pathology, The University of Illinois at Chicago, Chicago, Illinois 60612
| | - Habib Ahsan
- The Department of Public Health Sciences, The University of Chicago, Chicago, Illinois 60637 - 1447
| | - Brandon L Pierce
- The Department of Public Health Sciences, The University of Chicago, Chicago, Illinois 60637 - 1447.,The Department of Human Genetics, The University of Chicago, Chicago, Illinois 60637
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20
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Emami N, Moini A, Yaghmaei P, Akbarinejad V, Shahhoseini M, Alizadeh A. Differences in expression of genes related to steroidgenesis in abdominal subcutaneous adipose tissue of pregnant women with and without PCOS; a case control study. BMC Pregnancy Childbirth 2021; 21:490. [PMID: 34233642 PMCID: PMC8261994 DOI: 10.1186/s12884-021-03957-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 06/15/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND It was reported that steroid-related gene expressions in the adipose tissue (AT) of women differ between women affected with polycystic ovary syndrome (PCOS) and non-PCOS. Although association between PCOS in mother and offspring's health is a crucial issue, there are few studies focusing on AT of pregnant women suffering from PCOS. Our objectives were to determine the differences between mRNA expression levels of key steroid-converting enzymes in abdominal subcutaneous AT of pregnant women afflicted with PCOS and non-PCOS. METHODS Twelve pregnant women with PCOS (case) and thirty six non-PCOS pregnant women (control) (1:3 ratio; age- and BMI-matched) undergoing cesarean section were enrolled for the present study. Expressions of fifteen genes related to steriodogenesis in abdominal subcutaneous AT were investigated using quantitative real-time PCR. RESULTS No significant differences were detected with respect to age, BMI (prior pregnancy and at delivery day), gestational period and parity among pregnant women with PCOS and non-PCOS. Most of the sex steroid-converting genes except 17β-Hydroxysteroid dehydrogenases2 (17BHSD2), were highly expressed on the day of delivery in subcutaneous AT. Women with PCOS showed significantly higher mRNA levels of steroidgenic acute regulator (STAR; P < 0.001), cytochrome P450 monooxygenase (CYP11A1; P < 0.05), 17α-hydroxylase (CYP17A1; P < 0.05), and 11β-Hydroxysteroid dehydrogenase (11BHSD1 and 11BHSD2; P < 0.05). The expression of steroid 21-hydroxylase (CYP21) in non-PCOS was fourfold higher than those of women with PCOS (P < 0.001). There were no significant differences between relative expression of aromatase cytochrome P450 (CYP19A1), 3β-hydroxysteroid dehydrogenase (3BHSD1 and 3BHSD2), and 17BHSD family (1, 3, 5, 7, and 12) between the two groups. CONCLUSION The expression levels of genes related to sex steroids metabolism were similar to age-matched and BMI- matched pregnant non-PCOS and pregnant women with PCOS at delivery day. However, the alterations in gene expressions involved in glucocorticoids and mineralocorticoids metabolism were shown. It is necessary to point out that further studies regarding functional activity are required. More attention should be given to AT of pregnant women with PCOS that was previously ignored.
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Affiliation(s)
- Neda Emami
- Department of Biology, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran.,Department of Gynecology and Obstetrics, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Parichehreh Yaghmaei
- Department of Biology, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Vahid Akbarinejad
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Maryam Shahhoseini
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran. .,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran. .,Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - AliReza Alizadeh
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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SAINI SIMMI, WALIA GAGANDEEPKAUR, SACHDEVA MOHINDERPAL, GUPTA VIPIN. Genomics of body fat distribution. J Genet 2021. [DOI: 10.1007/s12041-021-01281-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Murga-Garrido SM, Hong Q, Cross TWL, Hutchison ER, Han J, Thomas SP, Vivas EI, Denu J, Ceschin DG, Tang ZZ, Rey FE. Gut microbiome variation modulates the effects of dietary fiber on host metabolism. MICROBIOME 2021; 9:117. [PMID: 34016169 PMCID: PMC8138933 DOI: 10.1186/s40168-021-01061-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 03/24/2021] [Indexed: 05/11/2023]
Abstract
BACKGROUND There is general consensus that consumption of dietary fermentable fiber improves cardiometabolic health, in part by promoting mutualistic microbes and by increasing production of beneficial metabolites in the distal gut. However, human studies have reported variations in the observed benefits among individuals consuming the same fiber. Several factors likely contribute to this variation, including host genetic and gut microbial differences. We hypothesized that gut microbial metabolism of dietary fiber represents an important and differential factor that modulates how dietary fiber impacts the host. RESULTS We examined genetically identical gnotobiotic mice harboring two distinct complex gut microbial communities and exposed to four isocaloric diets, each containing different fibers: (i) cellulose, (ii) inulin, (iii) pectin, (iv) a mix of 5 fermentable fibers (assorted fiber). Gut microbiome analysis showed that each transplanted community preserved a core of common taxa across diets that differentiated it from the other community, but there were variations in richness and bacterial taxa abundance within each community among the different diet treatments. Host epigenetic, transcriptional, and metabolomic analyses revealed diet-directed differences between animals colonized with the two communities, including variation in amino acids and lipid pathways that were associated with divergent health outcomes. CONCLUSION This study demonstrates that interindividual variation in the gut microbiome is causally linked to differential effects of dietary fiber on host metabolic phenotypes and suggests that a one-fits-all fiber supplementation approach to promote health is unlikely to elicit consistent effects across individuals. Overall, the presented results underscore the importance of microbe-diet interactions on host metabolism and suggest that gut microbes modulate dietary fiber efficacy. Video abstract.
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Affiliation(s)
- Sofia M Murga-Garrido
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Dr., Madison, WI, 53706, USA
- PECEM (MD/PhD), Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Qilin Hong
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI, 53792, USA
| | - Tzu-Wen L Cross
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Dr., Madison, WI, 53706, USA
- Present Address: Department of Nutrition Science, Purdue University, 700 W. State Street, Stone Hall 205, West Lafayette, IN, 47907, USA
| | - Evan R Hutchison
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Dr., Madison, WI, 53706, USA
| | - Jessica Han
- Wisconsin Institute for Discovery, Madison, WI, USA
| | | | - Eugenio I Vivas
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Dr., Madison, WI, 53706, USA
| | - John Denu
- Wisconsin Institute for Discovery, Madison, WI, USA
| | - Danilo G Ceschin
- Unidad de Bioinformática Traslacional, Centro de Investigación en Medicina Traslacional Severo Amuchástegui, Instituto Universitario de Ciencias Biomédicas de Córdoba, Av. Naciones Unidas 420, 5000, Córdoba, CP, Argentina
| | - Zheng-Zheng Tang
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI, 53792, USA.
- Wisconsin Institute for Discovery, Madison, WI, USA.
| | - Federico E Rey
- Department of Bacteriology, University of Wisconsin-Madison, 1550 Linden Dr., Madison, WI, 53706, USA.
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Chen Y, Liu Q, Liu R, Yang C, Wang X, Ran Z, Zhou S, Li X, He C. A Prepubertal Mice Model to Study the Growth Pattern of Early Ovarian Follicles. Int J Mol Sci 2021; 22:5130. [PMID: 34066233 PMCID: PMC8151218 DOI: 10.3390/ijms22105130] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/29/2021] [Accepted: 05/07/2021] [Indexed: 01/15/2023] Open
Abstract
Early folliculogenesis begins with the activation of the follicle and ends with the formation of the follicular antrum, which takes up most of the time of folliculogenesis. In this long process, follicles complete a series of developmental events, including but not limited to granulosa cell (GC) proliferation, theca folliculi formation, and antrum formation. However, the logical or temporal sequence of these events is not entirely clear. This study demonstrated in a mouse model that completion of early folliculogenesis required a minimum of two weeks. The oocyte reached its largest size in the Type 4-5 stage, which was therefore considered as the optimum period for studying oogenesis. Postnatal days (PD) 10-12 were regarded as the crucial stage of theca folliculi formation, as Lhcgr sharply increased during this stage. PD13-15 was the rapid growth period of early follicles, which was characterized by rapid cell proliferation, the sudden emergence of the antrum, and increased Fshr expression. The ovarian morphology remained stable during PD15-21, but antrum follicles accumulated gradually. Atresia occurred at all stages, with the lowest rate in Type 3 follicles and no differences among early Type 4-6 follicles. The earliest vaginal opening was observed at PD24, almost immediately after the first growing follicular wave. Therefore, the period of PD22-23 could be considered as a suitable period for studying puberty initiation. This study objectively revealed the pattern of early folliculogenesis and provided time windows for the study of biological events in this process.
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Affiliation(s)
- Yingjun Chen
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Qinghua Liu
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Ruiyan Liu
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Chan Yang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaodong Wang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Zaohong Ran
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Shanshan Zhou
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiang Li
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
| | - Changjiu He
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.C.); (Q.L.); (R.L.); (C.Y.); (X.W.); (Z.R.); (S.Z.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan 430070, China
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Mackay-Sim A. Hereditary Spastic Paraplegia: From Genes, Cells and Networks to Novel Pathways for Drug Discovery. Brain Sci 2021; 11:brainsci11030403. [PMID: 33810178 PMCID: PMC8004882 DOI: 10.3390/brainsci11030403] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 12/13/2022] Open
Abstract
Hereditary spastic paraplegia (HSP) is a diverse group of Mendelian genetic disorders affecting the upper motor neurons, specifically degeneration of their distal axons in the corticospinal tract. Currently, there are 80 genes or genomic loci (genomic regions for which the causative gene has not been identified) associated with HSP diagnosis. HSP is therefore genetically very heterogeneous. Finding treatments for the HSPs is a daunting task: a rare disease made rarer by so many causative genes and many potential mutations in those genes in individual patients. Personalized medicine through genetic correction may be possible, but impractical as a generalized treatment strategy. The ideal treatments would be small molecules that are effective for people with different causative mutations. This requires identification of disease-associated cell dysfunctions shared across genotypes despite the large number of HSP genes that suggest a wide diversity of molecular and cellular mechanisms. This review highlights the shared dysfunctional phenotypes in patient-derived cells from patients with different causative mutations and uses bioinformatic analyses of the HSP genes to identify novel cell functions as potential targets for future drug treatments for multiple genotypes.
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Affiliation(s)
- Alan Mackay-Sim
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
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25
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Liu Y, Denisov IG, Sligar SG, Kincaid JR. Substrate-Specific Allosteric Effects on the Enhancement of CYP17A1 Lyase Efficiency by Cytochrome b5. J Am Chem Soc 2021; 143:3729-3733. [PMID: 33656879 DOI: 10.1021/jacs.1c00581] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CYP17A1 is an essential human steroidogenic enzyme, which catalyzes two sequential reactions leading to the formation of androstenedione from progesterone and dehydroepiandrosterone from pregnenolone. The second reaction is the C17-C20 bond scission, which is strongly dependent on the presence of cytochrome b5 and displays a heretofore unexplained more pronounced acceleration when 17OH-progesteone (17OH-PROG) is a substrate. The origin of the stimulating effect of cytochrome b5 on C-C bond scission catalyzed by CYP17A1 is still debated as mostly due to either the acceleration of the electron transfer to the P450 oxy complex or allosteric effects of cytochrome b5 favoring active site conformations that promote lyase activity. Using resonance Raman spectroscopy, we compared the effect of Mn-substituted cytochrome b5 (Mn-Cytb5) on the oxy complex of CYP17A1 with both proteins co-incorporated in lipid nanodiscs. For CYP17A1 with 17OH-PROG, a characteristic shift of the Fe-O mode is observed in the presence of Mn-b5, indicating reorientation of a hydrogen bond between the 17OH group of the substrate from the terminal to the proximal oxygen atom of the Fe-O-O moiety, a configuration favorable for the lyase catalysis. For 17OH-pregnenolone, no such shift is observed, the favorable H-bonding orientation being present even without Mn-Cytb5. These new data provide a precise allosteric interpretation for the more pronounced acceleration seen for the 17OH-PROG substrate.
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Affiliation(s)
- Yilin Liu
- Department of Chemistry, Marquette University, 1414W Clybourn Street, Milwaukee, Wisconsin 53233, United States
| | | | | | - James R Kincaid
- Department of Chemistry, Marquette University, 1414W Clybourn Street, Milwaukee, Wisconsin 53233, United States
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26
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Ge RS, Li X, Wang Y. Leydig Cell and Spermatogenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1288:111-129. [PMID: 34453734 DOI: 10.1007/978-3-030-77779-1_6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Leydig cells of the testis have the capacity to synthesize androgen (mainly testosterone) from cholesterol. Adult Leydig cells are the cell type for the synthesis of testosterone, which is critical for spermatogenesis. At least four steroidogenic enzymes take part in testosterone synthesis: cytochrome P450 cholesterol side chain cleavage enzyme, 3β-hydroxysteroid dehydrogenase, cytochrome P450 17α-hydroxylase/17,20-lyase and 17β-hydroxysteroid dehydrogenase isoform 3. Testosterone metabolic enzyme steroid 5α-reductase 1 and 3α-hydroxysteroid dehydrogenase are expressed in some precursor Leydig cells. Androgen is transported by androgen-binding protein to Sertoli cells, where it binds to androgen receptor to regulate spermatogenesis.
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Affiliation(s)
- Ren-Shan Ge
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.
| | - Xiaoheng Li
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yiyan Wang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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27
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Luo Y, Chen H, Li D, Zhan M, Hou L, Dong W, Luo Y, Xie L. The effects of norethindrone on the ontogeny of gene expression along the hypothalamic-pituitary-adrenal and hypothalamic-pituitary-gonadal axes in zebrafish (Danio rerio). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 747:141554. [PMID: 32795812 DOI: 10.1016/j.scitotenv.2020.141554] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Little is known about the molecular effects of progestins on the hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-gonadal (HPG) axes in fish prior to sexual differentiation. In this study, the effects of norethindrone (NET) on the ontogeny of HPG- and HPA-related genes in zebrafish embryo/early larvae prior to sexual differentiation were evaluated. Embryo/larvae were exposed to different concentrations (5, 50, 500 ng/L) of NET for 6 days. The levels of the transcripts of the genes closely related to the HPG and HPA axes were determined daily during 3 stages (embryo, embryo/larvae transition, and early larvae). The results showed that most genes were up-regulated and the ontogeny of genes in the HPA axis was earlier than that of HPG axis, especially for the upstream genes of both the HPG (gnrh2, gnrh3, fshb, lhb) and the HPA (crh, pomc, star) axes. In contrast, the transcriptional expressions of genes of the cortisol/stress pathway (cyp11b, mr) were inhibited and those of the progesterone pathway were not affected. More importantly, NET exposure induced the expressions of the genes (esr1, vtg1, hsd17b3, hsd11b2, ar) that are closely related to the steroid hormone pathways in the embryos/larvae stages, implying a precocious effects of NET in zebrafish. This study demonstrates that NET alters the expression of HPA- and HPG-axes related genes in zebrafish at early stages, pointing to the need for the same type of analysis during the zebrafish gonadal differentiation window.
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Affiliation(s)
- Yixuan Luo
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Hongxing Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
| | - Dan Li
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Manjun Zhan
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Liping Hou
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Wu Dong
- College of Animal Science and Technology, Inner Mongolia University for Nationalities/Inner Mongolia Key Laboratory of Toxicant Monitoring and toxicology, Tongliao 028043, China
| | - Yongju Luo
- Guangxi Academy of Fishery Sciences, Nanning, Guangxi 530021, China
| | - Lingtian Xie
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
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Liu Y, Denisov IG, Grinkova YV, Sligar SG, Kincaid JR. P450 CYP17A1 Variant with a Disordered Proton Shuttle Assembly Retains Peroxo‐Mediated Lyase Efficiency. Chemistry 2020; 26:16846-16852. [DOI: 10.1002/chem.202003181] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Yilin Liu
- Department of Chemistry Marquette University 1414W Clybourn Street Milwaukee WI 53233 USA
| | - Ilia G. Denisov
- Departments of Biochemistry and Chemistry University of Illinois 116 Morrill Hall 505 S. Goodwin Avenue Urbana IL 61801 USA
| | - Yelena V. Grinkova
- Departments of Biochemistry and Chemistry University of Illinois 116 Morrill Hall 505 S. Goodwin Avenue Urbana IL 61801 USA
| | - Stephen G. Sligar
- Departments of Biochemistry and Chemistry University of Illinois 116 Morrill Hall 505 S. Goodwin Avenue Urbana IL 61801 USA
| | - James R. Kincaid
- Department of Chemistry Marquette University 1414W Clybourn Street Milwaukee WI 53233 USA
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Barnard M, Mostaghel EA, Auchus RJ, Storbeck KH. The role of adrenal derived androgens in castration resistant prostate cancer. J Steroid Biochem Mol Biol 2020; 197:105506. [PMID: 31672619 PMCID: PMC7883395 DOI: 10.1016/j.jsbmb.2019.105506] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/17/2019] [Accepted: 10/22/2019] [Indexed: 01/02/2023]
Abstract
Castration resistant prostate cancer (CRPC) remains androgen dependant despite castrate levels of circulating testosterone following androgen deprivation therapy, the first line of treatment for advanced metstatic prostate cancer. CRPC is characterized by alterations in the expression levels of steroidgenic enzymes that enable the tumour to derive potent androgens from circulating adrenal androgen precursors. Intratumoral androgen biosynthesis leads to the localized production of both canonical androgens such as 5α-dihydrotestosterone (DHT) as well as less well characterized 11-oxygenated androgens, which until recently have been overlooked in the context of CRPC. In this review we discuss the contribution of both canonical and 11-oxygenated androgen precursors to the intratumoral androgen pool in CRPC. We present evidence that CRPC remains androgen dependent and discuss the alterations in steroidogenic enzyme expression and how these affect the various pathways to intratumoral androgen biosynthesis. Finally we summarize the current treatment strategies for targeting adrenal derived androgen biosynthesis.
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Affiliation(s)
- Monique Barnard
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa
| | - Elahe A Mostaghel
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, WA, USA; Geriatric Research, Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA
| | - Richard J Auchus
- Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, MI, USA; Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA
| | - Karl-Heinz Storbeck
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa.
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Su H, Wang B, Shaik S. Quantum-Mechanical/Molecular-Mechanical Studies of CYP11A1-Catalyzed Biosynthesis of Pregnenolone from Cholesterol Reveal a C-C Bond Cleavage Reaction That Occurs by a Compound I-Mediated Electron Transfer. J Am Chem Soc 2019; 141:20079-20088. [PMID: 31741382 DOI: 10.1021/jacs.9b08561] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We explore here a long-standing mechanistic question by using quantum-mechanical/molecular-mechanical (QM/MM) methodology. The question concerns the mechanism of steroid hormone biosynthesis, whereby the P450 enzyme, CYP11A1, catalyzes the C20-C22 bond-cleavage in the 20,22-hydroxylated cholesterol, 20R,22R-DiOHCH, leading to pregnenolone, which is critical for the subsequent production of all steroid hormones. This is an unusual feat whereby the P450 enzyme breaks two O-H bonds and one C-C bond, while making two C═O bonds. How does the enzyme perform such a complex and highly energy-demanding reaction? Our computational results rule out the previously proposed Compound I (Cpd I) electrophilic attack mechanism via the formation of a peroxide intermediate as well as the H-abstraction-mediated C-C cleavage mechanism. Notably, oxygen-rebound cannot transpire, in spite of the fact that the classical active species, Cpd I, participates in the catalytic process. Our findings reveal a mechanism whereby C-C bond cleavage is mediated by an electron transfer from the C22-O--deprotonated substrate to Cpd I. As such, our QM/MM calculations demonstrate that Cpd I acts as an electron sink that facilitates the C-C bond cleavage.
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Affiliation(s)
- Hao Su
- Institute of Chemistry , The Hebrew University of Jerusalem , 9190400 Jerusalem , Israel
| | - Binju Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 360015 , P. R. China
| | - Sason Shaik
- Institute of Chemistry , The Hebrew University of Jerusalem , 9190400 Jerusalem , Israel
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Hu Y, Xiao Y, Rao Z, Kumar V, Liu H, Lu C. Carbon-carbon Bond Cleavage Catalyzed by Human Cytochrome P450 Enzymes: α-ketol as the Key Intermediate Metabolite in Sequential Metabolism of Olanexidine. Drug Metab Lett 2019; 14:41-53. [PMID: 31763971 DOI: 10.2174/1872312813666191125095818] [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: 09/19/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Carbon-carbon bond cleavage of a saturated aliphatic moiety is rarely seen in xenobiotic metabolism. Olanexidine (Olanedine®), containing an n-octyl (C8) side chain, was mainly metabolized to various shortened side chain (C4 to C6) acid-containing metabolites in vivo in preclinical species. In liver microsomes and S9, the major metabolites of olanexidine were from multi-oxidation on its n-octyl (C8) side chain. However, the carbon-carbon bond cleavage mechanism of n-octyl (C8) side chain, and enzyme(s) responsible for its metabolism in human remained unknown. METHODS A pair of regioisomers of α-ketol-containing C8 side chain olanexidine analogs (3,2-ketol olanexidine and 2,3-ketol olanexidine) were synthesized, followed by incubation in human liver microsomes, recombinant human cytochrome P450 enzymes or human hepatocytes, and subsequent metabolite identification using LC/UV/MS. RESULTS Multiple shortened side chain (C4 to C6) metabolites were identified, including C4, C5 and C6- acid and C6-hydroxyl metabolites. Among 19 cytochrome P450 enzymes tested, CYP2D6, CYP3A4 and CYP3A5 were identified to catalyze carbon-carbon bond cleavage. CONCLUSION 3,2-ketol olanexidine and 2,3-ketol olanexidine were confirmed as the key intermediates in carbon-carbon bond cleavage. Its mechanism is proposed that a nucleophilic addition of iron-peroxo species, generated by CYP2D6 and CYP3A4/5, to the carbonyl group caused the carbon-carbon bond cleavage between the adjacent hydroxyl and ketone groups. As results, 2,3-ketol olanexidine formed a C6 side chain acid metabolite. While, 3,2-ketol olanexidine formed a C6 side chain aldehyde intermediate, which was either oxidized to a C6 side chain acid metabolite or reduced to a C6 side chain hydroxyl metabolite.
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Affiliation(s)
- Yiding Hu
- Drug Metabolism and Pharmacokinetics, Sanofi, Waltham, Massachusetts-MA-02451, United States
| | - Yi Xiao
- Department of Pathology and Laboratory Medicine, Children's Hospital, Los Angeles, California-CA 90027, United States
| | - Zhesui Rao
- Drug Metabolism and Pharmacokinetics, Sanofi, Waltham, Massachusetts-MA-02451, United States
| | - Vasant Kumar
- Analytical R&D, Sanofi, Waltham, Massachusetts-MA-02451, United States
| | - Hanlan Liu
- Department of DMPK and Preformulation, KSQ, Cambridge, Massachusetts- MA 02139, United States
| | - Chuang Lu
- Drug Metabolism and Pharmacokinetics, Sanofi, Waltham, Massachusetts-MA-02451, United States
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Wang T, Zhu W, Zhang H, Wen X, Yin S, Jia Y. Integrated analysis of proteomics and metabolomics reveals the potential sex determination mechanism in Odontobutis potamophila. J Proteomics 2019; 208:103482. [PMID: 31401171 DOI: 10.1016/j.jprot.2019.103482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/28/2019] [Accepted: 08/05/2019] [Indexed: 02/06/2023]
Abstract
Odontobutis potamophila is a valuable species for aquaculture in China, which shows asexually dimorphic growth pattern. In this study, the integrated proteomics and metabolomics were used to analyze the sex determination mechanism. A total of 2781 significantly different regulated proteins were identified by proteomics and 2693 significantly different expressed metabolites were identified by metabolomics. Among them, 2560 proteins and 1701 metabolites were significantly up-regulated in testes, whereas 221 proteins and 992 metabolites were significantly up-regulated in ovaries. Venn diagram analysis showed 513 proteins were differentially regulated at both protein and metabolite levels. Correlation analysis of differentially-regulated proteins and metabolites were identified by Gene Ontology annotation and Kyoto Encyclopedia of Genes and Genomes pathway analysis. The results showed lipid metabolism plays an important role in sex determination. The metabolites decanoyl-CoA, leukotriene, 3-dehydrosphinganine, and arachidonate were the biomarkers in testes, whereas estrone and taurocholate were the biomarkers in ovaries. Interaction networks of the significant differentially co-regulated proteins and metabolites in the process of lipid metabolism showed arachidonic acid metabolism and steroid hormone biosynthesis were the most important pathways in sex determination. The findings of this study provide valuable information for selective breeding of O. potamophila. SIGNIFICANCE OF THE STUDY: The male O. potamophila grows substantially larger and at a quicker rate than the female. Thus, males have greater economic value than females. However, limited research was done to analyze the sex determination mechanism of O. potamophila, which seriously hindered the development of whole-male O. potamophila breeding. In this study, four key proteins (Ctnnb1, Piwil1, Hsd17b1, and Dnali1), six most important biomarkers (decanoyl-CoA, leukotriene, 3-dehydrosphinganine, arachidonate, estrone, and taurocholate) and two key pathways (arachidonic acid metabolism and steroid hormone biosynthesis) in sex determination of O. potamophila were found by integrated application of iTRAQ and LC-MS techniques. The results give valuable information for molecular breeding of O. potamophila in aquaculture.
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Affiliation(s)
- Tao Wang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu 222005, China
| | - Wenxu Zhu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu 222005, China
| | - Hongyan Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu 222005, China
| | - Xin Wen
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu 222005, China
| | - Shaowu Yin
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu 222005, China.
| | - Yongyi Jia
- Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, China.
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Li X, Luo J, Zhang C, Liu L, Ou S, Zhang G, Peng X. Alliin protects against inflammatory bowel disease by preserving the gene expression in colonic epithelial cells rather than altering gut microbiota. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.05.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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34
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A large-scale comparative analysis of affinity, thermodynamics and functional characteristics of interactions of twelve cytochrome P450 isoforms and their redox partners. Biochimie 2019; 162:156-166. [DOI: 10.1016/j.biochi.2019.04.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/24/2019] [Indexed: 12/16/2022]
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35
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Rendic SP, Peter Guengerich F. Human cytochrome P450 enzymes 5-51 as targets of drugs and natural and environmental compounds: mechanisms, induction, and inhibition - toxic effects and benefits. Drug Metab Rev 2019; 50:256-342. [PMID: 30717606 DOI: 10.1080/03602532.2018.1483401] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cytochrome P450 (P450, CYP) enzymes have long been of interest due to their roles in the metabolism of drugs, pesticides, pro-carcinogens, and other xenobiotic chemicals. They have also been of interest due to their very critical roles in the biosynthesis and metabolism of steroids, vitamins, and certain eicosanoids. This review covers the 22 (of the total of 57) human P450s in Families 5-51 and their substrate selectivity. Furthermore, included is information and references regarding inducibility, inhibition, and (in some cases) stimulation by chemicals. We update and discuss important aspects of each of these 22 P450s and questions that remain open.
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Affiliation(s)
| | - F Peter Guengerich
- b Department of Biochemistry , Vanderbilt University School of Medicine , Nashville , TN , USA
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36
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Wang W, Zhang X, Zhou X, Zhang Y, La Y, Zhang Y, Li C, Zhao Y, Li F, Liu B, Jiang Z. Deep Genome Resequencing Reveals Artificial and Natural Selection for Visual Deterioration, Plateau Adaptability and High Prolificacy in Chinese Domestic Sheep. Front Genet 2019; 10:300. [PMID: 31001329 PMCID: PMC6454055 DOI: 10.3389/fgene.2019.00300] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 03/19/2019] [Indexed: 01/02/2023] Open
Abstract
Sheep were one of the earliest domesticated animals. Both artificial and natural selection during domestication has resulted in remarkable changes in behavioral, physiological, and morphological phenotypes; however, the genetic mechanisms underpinning these changes remain unclear, particularly for indigenous Chinese sheep. In the present study, we performed pooled whole-genome resequencing of 338 sheep from five breeds representative of indigenous Chinese breeds and compared them to the wild ancestors of domestic sheep (Asian mouflon, Ovis orientalis) for detection of genome-wide selective sweeps. Comparative genomic analysis between domestic sheep and Asian mouflon showed that selected regions were enriched for genes involved in bone morphogenesis, growth regulation, and embryonic and neural development in domestic sheep. Moreover, we identified several vision-associated genes with funtional mutations, such as PDE6B (c.G2994C/p.A982P and c.C2284A/p.L762M mutations), PANK2, and FOXC1/GMSD in all five Chinese native breeds. Breed-specific selected regions were determined including genes such as CYP17 for hypoxia adaptability in Tibetan sheep and DNAJB5 for heat tolerance in Duolang sheep. Our findings provide insights into the genetic mechanisms underlying important phenotypic changes that have occurred during sheep domestication and subsequent selection.
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Affiliation(s)
- Weimin Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiang Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, China.,Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Yangzi Zhang
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Yongfu La
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yu Zhang
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Chong Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Youzhang Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Fadi Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China.,The State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China.,Engineering Laboratory of Sheep Breeding and Reproduction Biotechnology in Gansu Province, Minqin, China
| | - Bang Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, China
| | - Zhihua Jiang
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
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37
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Molaie S, Shahverdi A, Sharafi M, Shahhoseini M, Rashki Ghaleno L, Esmaeili V, Abed-Heydari E, Numan Bucak M, Alizadeh A. Dietary trans and saturated fatty acids effects on semen quality, hormonal levels and expression of genes related to steroid metabolism in mouse adipose tissue. Andrologia 2019; 51:e13259. [PMID: 30873638 DOI: 10.1111/and.13259] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/12/2019] [Accepted: 01/31/2019] [Indexed: 01/08/2023] Open
Abstract
Our objectives were to assess sperm alteration and adipose tissue (AT) genes expression related to steroid metabolism subsequent to fatty acids consumption. Twenty-nine mature male mice were divided into: fat diet (FD; n = 15) and the control group (n = 14). FD group was fed with low level of trans and saturated fatty acids source for 60 days. Sperm parameters, levels of hormones and the mRNA abundance of the target genes in AT were assessed. The sperm concentration, total and progressive motilities were lower in FD group compared to that of control (p < 0.01). Blood estradiol levels increased in FD (p < 0.001), whereas no significant difference was observed in testosterone. The mRNA levels of StAR, CYP11A1, CYP17A1, 17βHSD7 and 17βHSD12 in AT of FD were higher than those of the control (p < 0.05). In contrast, mRNA level of Cyp19a1 in FD was significantly (p < 0.05) lower than that of control. 17βHSD12 and 17βHSD7 (as oestrogenic genes) increased, while 17βHSD5 and 17βHSD3 (as androgenic genes) remained unchanged, indicating that dietary trans/saturated fatty acids affect AT genes expression. Probably, sperm parameters were altered by increment of expression level of genes involved in oestrogenic metabolism rather than those engaged in androgenic metabolism after fatty acids consumption.
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Affiliation(s)
- Solmaz Molaie
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Abdolhossein Shahverdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohsen Sharafi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Poultry Sciences, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Maryam Shahhoseini
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Leila Rashki Ghaleno
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Vahid Esmaeili
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Elham Abed-Heydari
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mustafa Numan Bucak
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | - AliReza Alizadeh
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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38
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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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39
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Xu LH, Du YL. Rational and semi-rational engineering of cytochrome P450s for biotechnological applications. Synth Syst Biotechnol 2018; 3:283-290. [PMID: 30533540 PMCID: PMC6263019 DOI: 10.1016/j.synbio.2018.10.001] [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] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 01/08/2023] Open
Abstract
The cytochrome P450 enzymes are ubiquitous heme-thiolate proteins performing regioselective and stereoselective oxygenation reactions in cellular metabolism. Due to their broad substrate scope and catalytic versatility, P450 enzymes are also attractive candidates for many industrial and biopharmaceutical applications. For particular uses, enzyme properties of P450s can be further optimized through directed evolution, rational, and semi-rational engineering approaches, all of which introduce mutations within the P450 structures. In this review, we describe the recent applications of these P450 engineering approaches and highlight the key regions and residues that have been identified using such approaches. These “hotspots” lie within critical functional areas of the P450 structure, including the active site, the substrate access channel, and the redox partner interaction interface.
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Affiliation(s)
- Lian-Hua Xu
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Corresponding author.
| | - Yi-Ling Du
- Institute of Pharmaceutical Biotechnology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
- Corresponding author.
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40
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Horzmann KA, Reidenbach LS, Thanki DH, Winchester AE, Qualizza BA, Ryan GA, Egan KE, Hedrick VE, Sobreira TJP, Peterson SM, Weber GJ, Wirbisky-Hershberger SE, Sepúlveda MS, Freeman JL. Embryonic atrazine exposure elicits proteomic, behavioral, and brain abnormalities with developmental time specific gene expression signatures. J Proteomics 2018; 186:71-82. [PMID: 30012420 PMCID: PMC6193558 DOI: 10.1016/j.jprot.2018.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/29/2018] [Accepted: 07/02/2018] [Indexed: 02/06/2023]
Abstract
Atrazine (ATZ), the second most commonly used herbicide in the United States, is an endocrine disrupting chemical linked to cancer and a common drinking water contaminant. This study further investigates ATZ-related developmental toxicity by testing the following hypotheses in zebrafish: the effects of embryonic ATZ exposure are dependent on timing of exposure; embryonic ATZ exposure alters brain development and function; and embryonic ATZ exposure changes protein abundance in carcinogenesis-related pathways. After exposing embryos to 0, 0.3, 3, or 30 parts per billion (ppb) ATZ, we monitored the expression of cytochrome P450 family 17 subfamily A member 1 (cyp17a1), glyoxalase I (glo1), ring finger protein 14 (rnf14), salt inducible kinase 2 (sik2), tetratricopeptide domain 3 (ttc3), and tumor protein D52 like 1 (tpd52l1) at multiple embryonic time points to determine normal expression and if ATZ exposure altered expression. Only cyp17a1 had normal dynamic expression, but ttc3 and tpd52l1 had ATZ-related expression changes before 72 h. Larvae exposed to 0.3 ppb ATZ had increased brain length, while larvae exposed to 30 ppb ATZ were hypoactive. Proteomic analysis identified altered protein abundance in pathways related to cellular function, neurodevelopment, and genital-tract cancer. The results indicate embryonic ATZ toxicity involves interactions of multiple pathways. SIGNIFICANCE This is the first report of proteomic alterations following embryonic exposure to atrazine, an environmentally persistent pesticide and common water contaminant. Although the transcriptomic alterations in larval zebrafish with embryonic atrazine exposure have been reported, neither the time at which gene expression changes occur nor the resulting proteomic changes have been investigated. This study seeks to address these knowledge gaps by evaluating atrazine's effect on gene expression through multiple time points during embryogenesis, and correlating changes in gene expression to pathological alterations in brain length and functional changes in behavior. Finally, pathway analysis of the proteomic alterations identifies connections between the molecular changes and functional outcomes associated with embryonic atrazine exposure.
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Affiliation(s)
- Katharine A Horzmann
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Leeah S Reidenbach
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Devang H Thanki
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Anna E Winchester
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Brad A Qualizza
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Geoffrey A Ryan
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Kaitlyn E Egan
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Victoria E Hedrick
- Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette, IN 47907, United States
| | - Tiago J P Sobreira
- Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette, IN 47907, United States
| | - Samuel M Peterson
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Gregory J Weber
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | | | - Maria S Sepúlveda
- Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, United States
| | - Jennifer L Freeman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States; Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, United States.
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41
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Morlock LK, Grobe S, Balke K, Mauersberger S, Böttcher D, Bornscheuer UT. Protein Engineering of the Progesterone Hydroxylating P450-Monooxygenase CYP17A1 Alters Its Regioselectivity. Chembiochem 2018; 19:1954-1958. [PMID: 29981252 DOI: 10.1002/cbic.201800371] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Indexed: 11/05/2022]
Abstract
The CYP171 enzyme is known to catalyse a key step in the steroidogenesis of mammals. The substrates progesterone and pregnenolone are first hydroxylated at the C17 position, and this is followed by cleavage of the C17-C20 bond to yield important precursors for glucosteroids and androgens. In this study, we focused on the reaction of the bovine CYP17A1 enzyme with progesterone as a substrate. On the basis of a created homology model, active-site residues were identified and systematically mutated to alanine. In whole-cell biotransformations, the importance of the N202, R239, G297 and E305 residues for substrate conversion was confirmed. Additionally, mutation of the L206, V366 and V483 residues enhanced the formation of the 16α-hydroxyprogesterone side product up to 40 % of the total product formation. Furthermore, residue L105 was found not to be involved in this side activity, which contradicts a previous study with the human enzyme.
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Affiliation(s)
- Lisa K Morlock
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Sascha Grobe
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Kathleen Balke
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Stephan Mauersberger
- Institute of Microbiology, Faculty of Biology, Dresden University of Technology, Zellescher Weg 20b, 01062, Dresden, Germany
| | - Dominique Böttcher
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Uwe T Bornscheuer
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
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42
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Duggal R, Denisov IG, Sligar SG. Cytochrome b 5 enhances androgen synthesis by rapidly reducing the CYP17A1 oxy-complex in the lyase step. FEBS Lett 2018; 592:2282-2288. [PMID: 29888793 DOI: 10.1002/1873-3468.13153] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/16/2018] [Accepted: 06/05/2018] [Indexed: 11/05/2022]
Abstract
Cytochrome P450 17A1 (CYP17A1) catalyzes the synthesis of androgens from the steroid precursors pregnenolone and progesterone in a two-step reaction process: allylic hydroxylation and carbo-carbon bond scission. Cytochrome b5 (Cyt-b5 ) is a stimulator of the second lyase reaction, but the chemical mechanism is unclear. We have shown previously that this stimulatory effect requires redox active Cyt-b5 . To investigate the origin of the lyase reaction enhancement by electron transfer from Cyt-b5 , we measured the reduction rates of oxy-ferrous substrate-bound CYP17A1 by Cyt-b5 and by cytochrome P450 reductase (CPR) coincorporated in Nanodiscs using stopped flow spectroscopy. We observed that Cyt-b5 reduces oxy-ferrous CYP17A1 10-fold faster than CPR, with the rate similar to that observed in a ternary complex of all three proteins.
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Affiliation(s)
- Ruchia Duggal
- Department of Biochemistry, University of Illinois, Urbana, IL, USA
| | - Ilia G Denisov
- Department of Biochemistry, University of Illinois, Urbana, IL, USA
| | - Stephen G Sligar
- Department of Biochemistry, University of Illinois, Urbana, IL, USA.,Department of Chemistry, University of Illinois, Urbana, IL, USA
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43
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Mak PJ, Duggal R, Denisov IG, Gregory MC, Sligar SG, Kincaid JR. Human Cytochrome CYP17A1: The Structural Basis for Compromised Lyase Activity with 17-Hydroxyprogesterone. J Am Chem Soc 2018; 140:7324-7331. [PMID: 29758981 DOI: 10.1021/jacs.8b03901] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The multifunctional enzyme, cytochrome P450 (CYP17A1), plays a crucial role in the production of androgens, catalyzing two key reactions on pregnenolone (PREG) and progesterone (PROG), the first being a 17-hydroxylation to generate 17-OH PREG and 17-OH PROG, with roughly equal efficiencies. The second is a C-C bond scission or "lyase" reaction in which the C17-C20 bond is cleaved, leading to the eventual production of powerful androgens, whose involvement in the proliferation of prostate cancer has generated intense interest in developing inhibitors of CYP17A1. For humans, the significance of the C-C bond cleavage of 17-OH PROG is lessened, because it is about 50 times less efficient than for 17-OH PREG in terms of kcat/Km. Recognizing the need to clarify relevant reaction mechanisms involved with such transformations, we first report studies of solvent isotope effects, results of which are consistent with a Compound I mediated PROG hydroxylase activity, yet exclude this intermediate as a participant in the formation of androstenedione (AD) via the lyase reaction. This finding is also supported by a combination of cryoreduction and resonance Raman spectroscopy that traps and structurally characterizes the key hemiketal reaction intermediates. Adding to a previous study of PREG and 17-OH PREG metabolism, the current work provides definitive evidence for a more facile protonation of the initially formed ferric peroxo-intermediate for 17-OH PROG-bound CYP17A1, compared to the complex with 17-OH PREG. Importantly, Raman characterization also reveals an H-bonding interaction with the terminal oxygen of the peroxo fragment, rather than with the proximal oxygen, as is present for 17-OH PREG. These factors would favor a diminished lyase activity of the sample with 17-OH PROG relative to the complex with 17-OH PREG, thereby providing a convincing structural explanation for the dramatic differences in activity for these lyase substrates in humans.
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Affiliation(s)
- Piotr J Mak
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53233 , United States
| | - Ruchia Duggal
- Department of Biochemistry , University of Illinois at Urbana-Champaign , 505 S. Goodwin , Urbana , Illinois 61801 , United States
| | - Ilia G Denisov
- Department of Biochemistry , University of Illinois at Urbana-Champaign , 505 S. Goodwin , Urbana , Illinois 61801 , United States
| | - Michael C Gregory
- Department of Biochemistry , University of Illinois at Urbana-Champaign , 505 S. Goodwin , Urbana , Illinois 61801 , United States
| | - Stephen G Sligar
- Department of Biochemistry , University of Illinois at Urbana-Champaign , 505 S. Goodwin , Urbana , Illinois 61801 , United States.,Department of Chemistry , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - James R Kincaid
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53233 , United States
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Klymiuk MC, Neunzig J, Bernhardt R, Sánchez-Guijo A, Hartmann MF, Wudy SA, Schuler G. Efficiency of the sulfate pathway in comparison to the Δ4- and Δ5-pathway of steroidogenesis in the porcine testis. J Steroid Biochem Mol Biol 2018; 179:64-72. [PMID: 29107177 DOI: 10.1016/j.jsbmb.2017.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 10/12/2017] [Accepted: 10/24/2017] [Indexed: 12/20/2022]
Abstract
Sulfonated steroids are increasingly recognized as a circulating reservoir of precursors for the local production of active steroids in certain target tissues. As an alternative to sulfonation of unconjugated steroids by cytosolic sulfotransferases, their direct formation from sulfonated precursors has been described. However, productivity and physiological relevance of this sulfate pathway of steroidogenesis are still widely unclear. Applying the porcine testis as a model, conversion of pregnenolone sulfate (P5S, sulfate pathway) by CYP17A1 was assessed in comparison to the parallel conversions of pregnenolone (P5, Δ5-pathway) and progesterone (P4, Δ4-pathway). To characterize conversions in the virtual absence of competing enzyme activities, in a first series of experiments porcine recombinant CYP17A1 was incubated with the respective substrate in the presence of bovine recombinant cytochrome P450 oxidoreductase (CPR) and cytochrome b5 (b5). Moreover, porcine testicular microsomal fractions were used as a source of homologous CYP17A1, CPR and b5. Invariably 17α-hydroxylation of P5S was, if at all, only minimal and no formation of dehydroepiandrosterone sulfate from P5S was detectable. Consistent with earlier studies porcine CYP17A1 efficiently metabolized P4 and P5 in both assay systems. Metabolism of P4 and P5 by testicular microsomal protein varied substantially between the five animals tested. In conclusion, a physiologically relevant sulfate pathway for the production of C19-steroids from P5S via CYP17A1 is very unlikely in the porcine testis.
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Affiliation(s)
- M C Klymiuk
- Veterinary Clinic for Obstetrics, Gynecology and Andrology, Justus-Liebig-University, Giessen, Germany
| | - J Neunzig
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, Saarbruecken, Germany
| | - R Bernhardt
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, Saarbruecken, Germany
| | - A Sánchez-Guijo
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig University, Giessen, Germany
| | - M F Hartmann
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig University, Giessen, Germany
| | - S A Wudy
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig University, Giessen, Germany
| | - G Schuler
- Veterinary Clinic for Obstetrics, Gynecology and Andrology, Justus-Liebig-University, Giessen, Germany.
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Blaschka C, Schuler G, Sánchez-Guijo A, Zimmer B, Feller S, Kotarski F, Wudy SA, Wrenzycki C. Occurrence of sulfonated steroids and ovarian expression of steroid sulfatase and SULT1E1 in cyclic cows. J Steroid Biochem Mol Biol 2018; 179:79-87. [PMID: 29262378 DOI: 10.1016/j.jsbmb.2017.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 12/07/2017] [Accepted: 12/14/2017] [Indexed: 12/28/2022]
Abstract
Historically sulfonated steroids were primarily considered as inactive metabolites destined for elimination. However, more recently they have been increasingly recognized as precursors for the production of bioactive steroids in target tissues and as functional molecules without preceding hydrolysis. In order to comprehensively characterize their occurrence in cyclic cows and their formation and hydrolysis in bovine ovarian steroidogenesis, ovaries from cyclic cows were screened for the expression of oestrogen sulfotransferase (SULTE1) and steroid sulfatase (STS) by Western blot and immunohistochemistry. Moreover, a broad spectrum of 13 sulfonated steroids was measured applying liquid chromatography-tandem mass spectrometry (LC-MS/MS) in blood samples collected from three cycling heifers during defined stages of the ovarian cycle and in fluid obtained from ovarian follicles of different size. SULT1E1 was undetectable in ovarian tissues. For STS only a weak immunostaining was found predominantly in granulosa cells of larger follicles. However, no specific band occurred in Western blot. In blood, concentrations of all sulfonated steroids investigated were below the limit of quantification (LOQ). In follicular fluid, only cholesterol sulfate was measured in considerable concentrations (328.3 ± 63.8 ng/ml). However, the role of cholesterol sulfate in bovine follicular steroidogenesis remains unclear as concentrations were obviously unrelated to follicular size. The remaining sulfonated steroids investigated were undetectable or only slightly exceeded LOQ in a minor proportion of samples. The results are clearly contrary to a role of sulfonated steroids as important precursors, intermediates or products of bovine ovarian steroidogenesis.
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Affiliation(s)
- Carina Blaschka
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany
| | - Gerhard Schuler
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany
| | - Alberto Sánchez-Guijo
- Steroid Research and Mass Spectrometry Unit, Center of Child and Adolescent Medicine, Faculty of Medicine, Justus-Liebig-University Giessen, Feulgenstrasse 10-12, D-35392 Giessen, Germany
| | - Bettina Zimmer
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany
| | - Sabine Feller
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany
| | - Franziska Kotarski
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany
| | - Stefan A Wudy
- Steroid Research and Mass Spectrometry Unit, Center of Child and Adolescent Medicine, Faculty of Medicine, Justus-Liebig-University Giessen, Feulgenstrasse 10-12, D-35392 Giessen, Germany
| | - Christine Wrenzycki
- Clinic for Veterinary Obstetrics, Gynaecology and Andrology, Department of Molecular Reproductive Medicine, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Strasse 106, D-35392 Giessen, Germany.
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Kaur R, Kaur T, Kaur A. Genetic association study from North India to analyze association of CYP19A1 and CYP17A1 with polycystic ovary syndrome. J Assist Reprod Genet 2018; 35:1123-1129. [PMID: 29564739 DOI: 10.1007/s10815-018-1162-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/14/2018] [Indexed: 11/30/2022] Open
Abstract
PURPOSE Polycystic ovary syndrome (PCOS) is a complex multifactorial endocrine disorder affecting approximately 5-10% of women of reproductive age. Affected women have menstrual disturbances due to anovulation, infertility, and hyperandrogenism. Ovarian androgen overproduction is the key physiopathologic feature of PCOS. A number of genes encoding major enzymes of the androgen metabolic pathways, such as HSD17B6, CYP19A1, CYP11A1, CYP17A1, and INSR, have been examined. Very few studies have been done in North India. There is an increasing prevalence of PCOS in women in Punjab and it is the leading cause of female infertility. In view of the strong evidence implicating the importance of CYP19A1 and CYP17A1 in androgen metabolic pathways, we investigated the association of rs700519, rs2414096, and rs743572 (- 34T>C) polymorphisms on susceptibility of developing PCOS, in North India. METHODS A total of 500 subjects (women of reproductive age) including 250 PCOS cases and 250 healthy age-matched controls were included in the present study. DNA was extracted from venous blood for all samples, and association analysis for rs2414096, rs700519, and rs743572 was done by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. Lipid profile was done using a biochemical analyzer and body mass index (BMI) was measured for all cases. Statistical analysis was performed. RESULTS Significant association of - 34T>C polymorphism of CYP17A1 was found with PCOS (p = 0.0005). BMI was statistically different between PCOS cases and controls (p = 0.000). Triglycerides were high in PCOS women. Variations of CYP19A1 were not statistically significant with PCOS. CONCLUSIONS These data suggest that - 34T>C polymorphism in CYP17A1 is associated with PCOS in North India. No polymorphism of CYP19A1 was found to be associated.
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Affiliation(s)
- Ratneev Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Tajinder Kaur
- Hartej Hospital, Ranjit Avenue, Amritsar, Punjab, 143001, India
| | - Anupam Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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Gregory MC, Mak PJ, Khatri Y, Kincaid JR, Sligar SG. Human P450 CYP17A1: Control of Substrate Preference by Asparagine 202. Biochemistry 2018; 57:764-771. [PMID: 29283561 DOI: 10.1021/acs.biochem.7b01067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
CYP17A1 is a key steroidogenic enzyme known to conduct several distinct chemical transformations on multiple substrates. In its hydroxylase activity, this enzyme adds a hydroxyl group at the 17α position of both pregnenolone and progesterone at approximately equal rates. However, the subsequent 17,20 carbon-carbon scission reaction displays variable substrate specificity in the numerous CYP17A1 isozymes operating in vertebrates, manifesting as different Kd and kcat values when presented with 17α-hydroxypregnenlone (OHPREG) versus 17α-hydroxyprogesterone (OHPROG). Here we show that the identity of the residue at position 202 in human CYP17A1, thought to form a hydrogen bond with the A-ring alcohol substituent on the pregnene- nucleus, is a key driver of this enzyme's native preference for OHPREG. Replacement of asparagine 202 with serine completely reverses the preference of CYP17A1, more than doubling the rate of turnover of the OHPROG to androstenedione reaction and substantially decreasing the rate of formation of dehydroepiandrosterone from OHPREG. In a series of resonance Raman experiments, it was observed that, in contrast with the case for the wild-type protein, in the mutant the 17α alcohol of OHPROG tends to form a H-bond with the proximal rather than terminal oxygen of the oxy-ferrous complex. When OHPREG was a substrate, the mutant enzyme was found to have a H-bonding interaction with the proximal oxygen that is substantially weaker than that of the wild type. These results demonstrate that a single-point mutation in the active site pocket of CYP17A1, even when far from the heme, has profound effects on steroidogenic selectivity in androgen biosynthesis.
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Affiliation(s)
- Michael C Gregory
- Department of Biochemistry, University of Illinois at Urbana-Champaign , 505 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - Piotr J Mak
- Department of Chemistry, Marquette University , Milwaukee, Wisconsin 53233, United States
| | - Yogan Khatri
- Department of Biochemistry, University of Illinois at Urbana-Champaign , 505 South Goodwin Avenue, Urbana, Illinois 61801, United States
| | - James R Kincaid
- Department of Chemistry, Marquette University , Milwaukee, Wisconsin 53233, United States
| | - Stephen G Sligar
- Department of Biochemistry, University of Illinois at Urbana-Champaign , 505 South Goodwin Avenue, Urbana, Illinois 61801, United States.,Department of Chemistry, University of Illinois , Urbana, Illinois 61801, United States
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48
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Gonzalez E, Johnson KM, Pallan PS, Phan TTN, Zhang W, Lei L, Wawrzak Z, Yoshimoto FK, Egli M, Guengerich FP. Inherent steroid 17α,20-lyase activity in defunct cytochrome P450 17A enzymes. J Biol Chem 2017; 293:541-556. [PMID: 29212707 DOI: 10.1074/jbc.ra117.000504] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/11/2017] [Indexed: 01/08/2023] Open
Abstract
Cytochrome P450 (P450) 17A1 catalyzes the oxidations of progesterone and pregnenolone and is the major source of androgens. The enzyme catalyzes both 17α-hydroxylation and a subsequent 17α,20-lyase reaction, and several mechanisms have been proposed for the latter step. Zebrafish P450 17A2 catalyzes only the 17α-hydroxylations. We previously reported high similarity of the crystal structures of zebrafish P450 17A1 and 17A2 and human P450 17A1. Five residues near the heme, which differed, were changed. We also crystallized this five-residue zebrafish P450 17A1 mutant, and the active site still resembled the structure in the other proteins, with some important differences. These P450 17A1 and 17A2 mutants had catalytic profiles more similar to each other than did the wildtype proteins. Docking with these structures can explain several minor products, which require multiple enzyme conformations. The 17α-hydroperoxy (OOH) derivatives of the steroids were used as oxygen surrogates. Human P450 17A1 and zebrafish P450s 17A1 and P450 17A2 readily converted these to the lyase products in the absence of other proteins or cofactors (with catalytically competent kinetics) plus hydroxylated 17α-hydroxysteroids. The 17α-OOH results indicate that a "Compound I" (FeO3+) intermediate is capable of formation and can be used to rationalize the products. We conclude that zebrafish P450 17A2 is capable of lyase activity with the 17α-OOH steroids because it can achieve an appropriate conformation for lyase catalysis in this system that is precluded in the conventional reaction.
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Affiliation(s)
- Eric Gonzalez
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Kevin M Johnson
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Pradeep S Pallan
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Thanh T N Phan
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Wei Zhang
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Li Lei
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - Zdzislaw Wawrzak
- the Life Sciences Collaborative Access Team, Sector 21, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and
| | | | - Martin Egli
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146
| | - F Peter Guengerich
- From the Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146,
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Overexpression of HSD17B4 exerts tumor suppressive function in adrenocortical carcinoma and is not associated with hormone excess. Oncotarget 2017; 8:114736-114745. [PMID: 29383116 PMCID: PMC5777728 DOI: 10.18632/oncotarget.22827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 11/07/2017] [Indexed: 11/25/2022] Open
Abstract
Aim Adrenocortical carcinoma (ACC) is characterized with excessive hormone production. We therefore investigated expression of hormone-related genes in ACC. Results We queried status of 14 key genes directly involved in adrenal hormone production and found HSD17B4 expression was upregulated in 39% of ACC cases on top of all queried genes. Overexpression of HSD17B4 was significantly associate with a normo-hormonal phenotype. Constitutive HSD17B4 expression was higher in ACC cell line NCI-H295R than in adrenocortical small cell carcinoma cell line SW13. NCI-H295R cells with HSD17B4-knockdown (KD) demonstrated significantly inhibited proliferation, increased apoptosis, and increased cell cycle arrest. Enrichment analysis for mRNA expression in ACC samples with or without HSD17B4 overexpression showed significant change in p53 pathway. Replenish of HSD17B4 in SW13 cells and knockdown of HSD17B4 in H295R cells confirmed alterations in MDM4, ATR, and IE24 with alterations more contrasting in H295R cells. HSD17B4-KD inhibited cell invasion, migration and anchorage independent growth of NCI-H295R cells, but not of SW13 cells. Materials and Methods Clinical and genetic data of ACC samples were reproduced from the ACC dataset of The Cancer Genome Atlas (TCGA) database using cBioPortal. Genes participating in adrenal hormone production were queried. Association between gene status and hormone release were studied and in vitro assays using RNA interference were carried out. Conclusions Overexpression of HSD17B4 exerted tumor suppressive function in adrenocortical carcinoma and was not related to hormone excess. Crosstalk between HSD17B4 and p53 warrants further investigation.
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Bhatt MR, Khatri Y, Rodgers RJ, Martin LL. Role of cytochrome b5 in the modulation of the enzymatic activities of cytochrome P450 17α-hydroxylase/17,20-lyase (P450 17A1). J Steroid Biochem Mol Biol 2017; 170:2-18. [PMID: 26976652 DOI: 10.1016/j.jsbmb.2016.02.033] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/25/2016] [Accepted: 02/27/2016] [Indexed: 12/13/2022]
Abstract
Cytochrome b5 (cyt b5) is a small hemoprotein that plays a significant role in the modulation of activities of an important steroidogenic enzyme, cytochrome P450 17α-hydroxylase/17,20-lyase (P450 17A1, CYP17A1). Located in the zona fasciculata and zona reticularis of the adrenal cortex and in the gonads, P450 17A1 catalyzes two different reactions in the steroidogenic pathway; the 17α-hydroxylation and 17,20-lyase, in the endoplasmic reticulum of these respective tissues. The activities of P450 17A1 are regulated by cyt b5 that enhances the 17,20-lyase reaction by promoting the coupling of P450 17A1 and cytochrome P450 reductase (CPR), allosterically. Cyt b5 can also act as an electron donor to enhance the 16-ene-synthase activity of human P450 17A1. In this review, we discuss the many roles of cyt b5 and focus on the modulation of CYP17A1 activities by cyt b5 and the mechanisms involved.
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Affiliation(s)
- Megh Raj Bhatt
- Everest Biotech Pvt. Ltd., Khumaltar, Lalitpur, P.O. Box 21608, Kathmandu 44600, Nepal
| | - Yogan Khatri
- Institute of Biochemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Raymond J Rodgers
- School of Medicine, Robinson Research Institute, University of Adelaide, Adelaide SA 5005, Australia
| | - Lisandra L Martin
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia.
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