1
|
Yang T, Chi Y, Wang X, Xu C, Chen X, Liu Y, Huang S, Zhu X, Zhang H, Zhuo H, Wu D. PRL-mediated STAT5B/ARRB2 pathway promotes the progression of prostate cancer through the activation of MAPK signaling. Cell Death Dis 2024; 15:128. [PMID: 38341429 PMCID: PMC10858970 DOI: 10.1038/s41419-023-06362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/25/2023] [Accepted: 12/01/2023] [Indexed: 02/12/2024]
Abstract
Previous study showed that higher expression of prolactin (PRL) was found in CRPC samples compared with hormone-naive prostate cancer (HNPC) and benign prostatic hyperplasia (BPH) samples. We further investigate the function of PRL in prostate cancer (PCa) and explored its downstream effects. We found heterogeneous expression of the PRLR in clinical prostate samples. The VCaP and 22Rv1 cells exhibited PRLR expression. Among the downstream proteins, STAT5B was the dominant subtype in clinical samples and cell lines. Human recombinant PRL stimulation of PCa cells with PRLR expression resulted in increased phosphorylation of STAT5B(pSTAT5B) and progression of PCa in vitro and in vivo, and STAT5B knockdown can suppress the malignant behavior of PCa. To understand the mechanism further, we performed Bioinformatic analysis, ChIP qPCR, and luciferase reporter gene assay. The results revealed that ARRB2 was the transcription target gene of STAT5B, and higher expression of ARRB2 was related to higher aggression and poorer prognosis of PCa. Additionally, Gene set enrichment analysis indicated that higher expression of ARRB2 was significantly enriched in the MAPK signaling pathway. Immunohistochemistry (IHC) demonstrated elevated pSTAT5B, ARRB2, and pERK1/2 expression levels in CRPC tissues compared to HNPC and BPH. Mechanically, ARRB2 enhanced the activation of the MAPK pathway by binding to ERK1/2, thereby promoting the phosphorylation of ERK1/2 (pERK1/2). In conclusion, our study demonstrated that PRL stimulation can promote the progression of PCa through STAT5B/ARRB2 pathway and activation of MAPK signaling, which can be suppressed by intervention targeting STAT5B. Blockade of the STAT5B can be a potential therapeutic target for PCa.
Collapse
Affiliation(s)
- Tao Yang
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Department of Urology, The Third People's Hospital of Chengdu/The Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Yongnan Chi
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xin'an Wang
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chengdang Xu
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xi Chen
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ying Liu
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shengsong Huang
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xuyou Zhu
- Department of Pathology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Haoyang Zhang
- Department of Pathology, Baoshan Branch, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui Zhuo
- Department of Urology, The Third People's Hospital of Chengdu/The Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China.
| | - Denglong Wu
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.
| |
Collapse
|
2
|
Samuel B, Dadi H, Dejene G, Kang M, Park C, Dinka H. Single nucleotide polymorphisms within exon four of the prolactin gene and their effect on milk traits in cattle populations of Ethiopia. Anim Biotechnol 2023; 34:4634-4644. [PMID: 36803222 DOI: 10.1080/10495398.2023.2176867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Bovine prolactin (PRL) gene is essential for the initiation and maintenance of lactation and exerts multiple effects on mammary alveoli to promote the synthesis and secretion of major components of milk. The objectives of this study were to identify mutations in PRL gene and to evaluate the mutations as potential markers of milk performance traits in cattle populations of Ethiopia. For this purpose, genomic DNA from whole blood was extracted through salting out procedure from 87 animals of five cattle populations of Ethiopia. Accordingly, three single nucleotide polymorphisms (SNPs) were identified of which one SNP g.8323T > A showed missense mutation while the other two SNPs revealed silent mutations. FST values showed statistically significant genetic differentiation among the studied populations. Intermediate polymorphic information content was noted for most SNPs, which indicates the presence of sufficient genetic variation at this locus. Two SNPs showed heterozygote deficiency as a result of positive FIS values. Only g.8398A > G SNP have statistically significant (p < 0.05) effect on average daily milk yield, fat and solid not fat percentage in all studied cattle populations. Therefore, g.8398A > G SNP identified in this study influences cattle milk production and may be used as possible candidate SNP for marker-assisted selection programs in cattle populations of Ethiopia.
Collapse
Affiliation(s)
- Behailu Samuel
- Department of Applied Biology, Adama Science and Technology University, Adama, Ethiopia
| | - Hailu Dadi
- Bio and Emerging Technology Institute, Addis Ababa, Ethiopia
| | - Genet Dejene
- Bio and Emerging Technology Institute, Addis Ababa, Ethiopia
| | - Mingue Kang
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, Korea
| | - Chankyu Park
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, Korea
| | - Hunduma Dinka
- Department of Applied Biology, Adama Science and Technology University, Adama, Ethiopia
| |
Collapse
|
3
|
Nowier AM, Darwish HR, Ramadan SI, Othman OE. Allele mining in prolactin receptor gene and its association with some economic traits in Egyptian goat breeds. Anim Biotechnol 2023; 34:5028-5036. [PMID: 37409468 DOI: 10.1080/10495398.2023.2223237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
The objectives of the current study were to identify polymorphism in the prolactin receptor (PRLR) gene among three Egyptian goat breeds (Zaraibi, Damascus, and Barki) and to investigate the association between PRLR genotype, parity, season of kidding, and litter size factors with milk yield and reproductive traits of Zaraibi goats. One hundred and ninety blood samples were collected for DNA extraction, with 110 from Zaraibi, 40 from Barki, and 40 from Damascus breeds. Three genotypes, CC, CT and TT, for the prolactin receptor gene were identified in the 190 DNA samples using restriction fragment length polymorphism and were confirmed by direct sequencing technique. Milk yield during suckling and lactation periods in addition to age at first conception, gestation length, and litter size were determined in 110 Zaraibi goats. The Zaraibi goats recorded the highest heterozygosity (0.495) and the effective number of alleles (1.972). The g.62130C > T SNP showed a significant association (p < 0.01) with suckling, lactation, and total milk yield of Zaraibi goats with the highest values recorded at the third parity. Age at the first conception and gestation length traits were significantly influenced by the kidding season (p < 0.05) with younger age in autumn and shorter length in spring seasons. Milk yield during the suckling period was significantly (p < 0.01) higher in the case of triplets' litter size. The current study showed that litter size and parity played an important role in the amount of Zaraibi goats' milk yield. The g.62130C > T SNP of the PRLR gene may be a useful marker for assisted selection programs to improve goat milk yield during suckling and lactation periods with the heterozygous genotype CT recording the highest values.
Collapse
Affiliation(s)
- Amira M Nowier
- Biotechnology Research Department, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt
| | | | - Sherif I Ramadan
- Animal Wealth Development Department, Faculty of Veterinary Medicine, Benha University, Toukh, Qalyubia, Egypt
| | - Othman E Othman
- Cell Biology Department, National Research Centre, Giza, Egypt
| |
Collapse
|
4
|
Amin M, Gragnoli C. The prolactin receptor gene (PRLR) is linked and associated with the risk of polycystic ovarian syndrome. J Ovarian Res 2023; 16:222. [PMID: 37993904 PMCID: PMC10664635 DOI: 10.1186/s13048-023-01280-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 09/12/2023] [Indexed: 11/24/2023] Open
Abstract
The prolactin receptor gene (PRLR) may contribute to polycystic ovarian syndrome (PCOS) since it plays important roles in physiological ovarian functions. PRLR-knockout mice have irregular cycles and subfertility and variants in or around the PRLR gene were associated in humans with female testosterone levels and recurrent miscarriage. We tested 40 variants in the PRLR gene in 212 Italian families phenotyped by type 2 diabetes (T2D) and PCOS and found two intronic PRLR-variants (rs13436213 and rs1604428) significantly linked to and/or associated with the risk of PCOS. This is the first study to report PRLR as a novel risk gene in PCOS. Functional studies are needed to confirm these results.
Collapse
Affiliation(s)
- Mutaz Amin
- INSERM, US14-Orphanet, Paris, 75014, France
| | - Claudia Gragnoli
- Division of Endocrinology, Department of Medicine, Creighton University School of Medicine, Omaha, NE, 68124, USA.
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, 17033, USA.
- Molecular Biology Laboratory, Bios Biotech Multi-Diagnostic Health Center, Rome, 00197, Italy.
| |
Collapse
|
5
|
Zhang X, Sui Y, Yu L, Zhou M, Zhang C, Liu D, Chen X, Yang L, Sui Y. Population Pharmacokinetic Analysis of Follicle-Stimulating Hormone During Ovarian Stimulation: Relation with Weight, Prolactin and Gene Polymorphism in THADA and ADIPOQ. Clin Pharmacokinet 2023; 62:1493-1507. [PMID: 37632631 DOI: 10.1007/s40262-023-01299-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND Personalisation strategies of ovarian stimulation for in vitro fertilisation (IVF)/ intracytoplasmic sperm injection (ICSI) treatments using exogenous follicle-stimulating hormone (FSH) have been extensively studied over the past 20 years. This research aimed to develop a FSH population pharmacokinetic (PPK) model taking into account the contribution of gene polymorphisms in Chinese reproductive-age women. METHODS Data from 173 patients undergoing GnRH agonist down-regulation long protocols of IVF/ICSI treatment were collected. PPK analysis was subsequently conducted using the nonlinear mixed-effect model (NONMEM) software. Several covariates, including 18 single nucleotide polymorphisms, demographic factors and biological characteristics, were evaluated. The final PPK model was extensively validated using bootstrapping and normalised prediction error distribution, as well as external validation on an independent group of 35 patients. RESULTS FSH PPK was accurately described by a one-compartment model with first-order absorption. The typical population value of apparent clearance was estimated to be 0.81 L/h [relative standard errors (RSE) 5.3%] with an inter-individual variability (IIV) of 16.0%. The typical apparent distribution volume was 8.36 L (RSE 9.7%, 59.7% IIV), and the absorption rate constant was estimated to be 0.0444 h-1 (RSE 9.1%). Body weight, basal prolactin concentration and the gene ADIPOQ (rs1501299) showed a significant covariate effect on the FSH clearance rate and exposure concentration. Genotypes of THADA (rs12478601) significantly influenced the distribution volume. Simulation results indicated that patients with the TT genotype of THADA (rs12478601) required a longer time to reach steady state and had less fluctuation in FSH levels. Model evaluations showed that the final model accurately and precisely described the observed data and demonstrated effective prediction performance. CONCLUSION PPK models of FSH have been developed, which could potentially be used for FSH dosage individualisation in the clinical setting. CLINICAL TRIAL REGISTRATION This study has been registered with the Chinese Clinical Trials Registry (ChiCTR2100049142).
Collapse
Affiliation(s)
- Xiaowei Zhang
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China.
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China.
| | - Yu Sui
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
- Key Laboratory of Medical Cell Biology of Ministry of Education, Institute of Health Sciences, China Medical University, Shenyang, China
| | - Lei Yu
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Min Zhou
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
| | - Chong Zhang
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
| | - Danhua Liu
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
| | - Xinren Chen
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
| | - Liqun Yang
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China
| | - Yang Sui
- NHC Key Laboratory of Reproductive Health and Medical Genetics, China Medical University, Shenyang, China.
- Reproductive Affiliated Hospital of China Medical University, PuHe Street 10, Huanggu District, Shenyang, 110031, China.
| |
Collapse
|
6
|
de Castro Moreira AR, Trarbach E, Bueno CBF, Monteiro ALS, Grande IPP, Padula M, Maciel GAR, Glezer A. PRL-R Variants Are Not Only Associated With Prolactinomas But Also With Dopamine Agonist Resistance. J Clin Endocrinol Metab 2023; 108:e450-e457. [PMID: 36638053 DOI: 10.1210/clinem/dgad020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 01/14/2023]
Abstract
CONTEXT Knockout prolactin receptor gene (PRL-R) mice are animal models for prolactinomas and PRL acts via autocrine/paracrine inhibiting lactotroph proliferation. Recently, variants of the PRL-R were identified in prolactinoma patients and their frequency was higher compared to individuals from the genomic database. OBJECTIVE We analyzed PRL-R variants frequency in an extensive cohort of prolactinoma patients and evaluated their association with clinical, laboratorial, and imaging characteristics and hormonal response to cabergoline. DESIGN Observational, retrospective, and cross-sectional study. SETTING This study took place at the Neuroendocrinology Unit of Clinics Hospital, Medical School of University of São Paulo, Brazil, a tertiary referral center. PATIENTS AND METHODS Study participants included adults with sporadic prolactinomas treated with cabergoline, where response to therapy was defined by prolactin normalization with up to 3 mg/week doses. DNA was extracted from blood samples and the PRL-R was analyzed by polymerase chain reaction techniques and automatic sequencing. The association of PRL-R variants with serum prolactin levels, maximal tumor diameter, tumor parasellar invasiveness, and response to cabergoline was analyzed. RESULTS We found 6 PRL-R variants: p.Ile100(76)Val, p.Ile170(146)Leu, p.Glu400(376)Gln/p.Asn516(492)Ile, p.Glu470Asp e p.Ala591Pro; the last 2 are newly described in prolactinomas' patients. The variants p.Glu400(376)Gln/p.Asn516(492)Ile and p.Ala591Pro were more frequent amongst patients compared to genomic databases, and the p.Asn516(492)Ile showed pathogenic potential using in silico analysis as previously described. PRL-R variants were associated with male sex (P = 0.015), higher serum PRL levels (P = 0.007), larger tumors (P = 0.001), and cabergoline resistance (P < 0.001). CONCLUSIONS The prolactin/prolactin receptor system seems to be related to prolactinoma tumorigenesis and cabergoline resistance. Additional studies are needed to better understand the PRL-R variants' role and their potential as therapeutic targets.
Collapse
Affiliation(s)
- Andrea Ramos de Castro Moreira
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clínicas, University of São Paulo Medical School, São Paulo, Brazil
| | - Ericka Trarbach
- Laboratório de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | | | - Anna Louise Stellfeld Monteiro
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clínicas, University of São Paulo Medical School, São Paulo, Brazil
| | - Isabella Pacetti Pajaro Grande
- Laboratório de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | - Mario Padula
- Department of Radiology, Instituto de Radiologia-INRAD, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Gustavo Arantes Rosa Maciel
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Andrea Glezer
- Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clínicas, University of São Paulo Medical School, São Paulo, Brazil
- Laboratório de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| |
Collapse
|
7
|
Amin M, Wu R, Postolache TT, Gragnoli C. Novel implication of the prolactin (PRL) gene in the comorbidity of type 2 diabetes and depression. Eur Rev Med Pharmacol Sci 2023; 27:4080-4084. [PMID: 37203833 DOI: 10.26355/eurrev_202305_32315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVE The prolactin (PRL) system plays important behavioral, social, and metabolic roles, such as mediating social bonding and insulin secretion. Inherited dysfunction of the PRL pathway-related genes is associated with psychopathology and insulin resistance. We have previously suggested that the PRL system might be implicated in the comorbidity of psychiatric (depression) and type 2 diabetes (T2D) owing to the pleiotropy of PRL pathway-related genes. To our knowledge, no PRL variants have so far been reported in patients with either major depressive disorder (MDD) and/or T2D. PATIENTS AND METHODS In this study, we analyzed 6 variants within the PRL gene and tested them for the presence of parametric linkage and/or linkage disequilibrium (LD, i.e., linkage and association) with familial MDD, T2D, and their comorbidity. RESULTS We found, for the first time, that the PRL gene and its novel risk variants are linked to and in LD (i.e., linkage and association) with familial MDD, T2D, and MDD-T2D comorbidity. CONCLUSIONS PRL might play a key role in mental-metabolic comorbidity and can be considered a novel gene in MDD and T2D.
Collapse
Affiliation(s)
- M Amin
- INSERM, US14-Orphanet, Paris, France.
| | | | | | | |
Collapse
|
8
|
Aci R, Ciftci G, Yigit S, Sezer O, Keskin A. Clock 3111 T/C and Period3 VNTR gene polymorphisms and proteins, and melatonin levels in women with infertility. J Assist Reprod Genet 2023; 40:1109-1116. [PMID: 36847953 PMCID: PMC10239405 DOI: 10.1007/s10815-023-02756-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/19/2023] [Indexed: 03/01/2023] Open
Abstract
PURPOSE One of the causes of infertility is circadian rhythm disorders. This study aimed to investigate Clock 3111 T/C and Period3 VNTR (variable number tandem repeat) gene polymorphisms and these gene proteins, some biochemical parameters, and circadian rhythm hormones in infertile women. METHODS Thirty-five infertile women and thirty-one healthy fertile women were included. Blood samples were taken in the mid-luteal phase. DNAs obtained from peripheral blood were analyzed using polymerase chain reaction-restriction fragment length polymorphism methods. Follicle-stimulating hormone, LH (luteinizing hormone), estradiol, prolactin, free triiodothyronine, fT4 (free thyroxine), thyroid-stimulating hormone, testosterone, cortisol, progesterone, prolactin, ferritin, vitamin B12, and folate levels in serum samples were determined by the electrochemiluminescence immunoassay method. Melatonin, Clock, and Period3 protein levels were determined with ELISA kits. RESULTS There was a significant difference in the frequency of Period3 DD (Per34/4) genotype between the groups. The Clock protein level of the infertile group was higher than the fertile group. Clock protein levels of the fertile group were positively correlated with estradiol levels and negatively correlated with LH, prolactin, and fT4 levels. PER3 protein levels of the infertile group were negatively correlated with LH levels. Melatonin levels of the fertile group were positively correlated with progesterone levels and negatively correlated with cortisol levels. Melatonin levels of the infertile group were positively correlated with LH levels and negatively correlated with cortisol levels. CONCLUSION Per34/4 genotype may be an independent risk factor in infertile women. Different correlation results found in fertile and infertile women can form the basis for future studies.
Collapse
Affiliation(s)
- Recai Aci
- Department of Biochemistry, Samsun Training and Research Hospital, Samsun University, 199 Barıs Boulevard, Kadıkoy Neighborhood, Ilkadim, Samsun, 55090, Turkey.
| | - Gulay Ciftci
- Department of Biochemistry, Faculty of Veterinary, Ondokuz Mayis University, Samsun, Turkey
| | - Serbulent Yigit
- Department of Genetics, Faculty of Veterinary, Ondokuz Mayis University, Samsun, Turkey
| | - Ozlem Sezer
- Department of Genetic, Samsun Training and Research Hospital, Samsun University, Samsun, Turkey
| | - Adem Keskin
- Department of Medicine Biochemistry, Institute of Health Sciences, Aydin Adnan Menderes University, Aydin, Turkey
| |
Collapse
|
9
|
Wilson AB, Whittington CM, Meyer A, Scobell SK, Gauthier ME. Prolactin and the evolution of male pregnancy. Gen Comp Endocrinol 2023; 334:114210. [PMID: 36646326 DOI: 10.1016/j.ygcen.2023.114210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 11/04/2022] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Prolactin (PRL) is a multifunctional hormone of broad physiological importance, and is involved in many aspects of fish reproduction, including the regulation of live birth (viviparity) and both male and female parental care. Previous research suggests that PRL also plays an important reproductive role in syngnathid fishes (seahorses, pipefish and seadragons), a group with a highly derived reproductive strategy, male pregnancy - how the PRL axis has come to be co-opted for male pregnancy remains unclear. We investigated the molecular evolution and expression of the genes for prolactin and its receptor (PRLR) in an evolutionarily diverse sampling of syngnathid fishes to explore how the co-option of PRL for male pregnancy has impacted its evolution, and to clarify whether the PRL axis is also involved in regulating reproductive function in species with more rudimentary forms of male pregnancy. In contrast to the majority of teleost fishes, all syngnathid fishes tested carry single copies of PRL and PRLR that cluster genetically within the PRL1 and PRLRa lineages of teleosts, respectively. PRL1 gene expression in seahorses and pipefish is restricted to the pituitary, while PRLRa is expressed in all tissues, including the brood pouch of species with both rudimentary and complex brooding structures. Pituitary PRL1 expression remains stable throughout pregnancy, but PRLRa expression is specifically upregulated in the male brood pouch during pregnancy, consistent with the higher affinity of pouch tissues for PRL hormone during embryonic incubation. Finally, immunohistochemistry of brood pouch tissues reveals that both PRL1 protein and PRLRa and Na+/K+ ATPase-positive cells line the inner pouch epithelium, suggesting that pituitary-derived PRL1 may be involved in brood pouch osmoregulation during pregnancy. Our data provide a unique molecular perspective on the evolution and expression of prolactin and its receptor during male pregnancy, and provide the foundation for further manipulative experiments exploring the role of PRL in this unique form of reproduction.
Collapse
Affiliation(s)
- Anthony B Wilson
- Department of Biology, Brooklyn College, 2900 Bedford Avenue, Brooklyn, NY 11210, United States; The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, United States; Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich 8057, Switzerland; Department of Biology, University of Konstanz, Universitätsstrasse 10, 78457, Germany.
| | - Camilla M Whittington
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich 8057, Switzerland; Sydney School of Veterinary Science, University of Sydney, Sydney 2006, Australia; School of Life and Environmental Sciences, University of Sydney, Sydney 2006, Australia
| | - Axel Meyer
- Department of Biology, University of Konstanz, Universitätsstrasse 10, 78457, Germany
| | - Sunny K Scobell
- Department of Biology, Brooklyn College, 2900 Bedford Avenue, Brooklyn, NY 11210, United States
| | - Marie-Emilie Gauthier
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich 8057, Switzerland
| |
Collapse
|
10
|
Taghi Khani A, Kumar A, Sanchez Ortiz A, Radecki KC, Aramburo S, Lee SJ, Hu Z, Damirchi B, Lorenson MY, Wu X, Gu Z, Stohl W, Sanz I, Meffre E, Müschen M, Forman SJ, Koff JL, Walker AM, Swaminathan S. Isoform-specific knockdown of long and intermediate prolactin receptors interferes with evolution of B-cell neoplasms. Commun Biol 2023; 6:295. [PMID: 36941341 PMCID: PMC10027679 DOI: 10.1038/s42003-023-04667-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023] Open
Abstract
Prolactin (PRL) is elevated in B-cell-mediated lymphoproliferative diseases and promotes B-cell survival. Whether PRL or PRL receptors drive the evolution of B-cell malignancies is unknown. We measure changes in B cells after knocking down the pro-proliferative, anti-apoptotic long isoform of the PRL receptor (LFPRLR) in vivo in systemic lupus erythematosus (SLE)- and B-cell lymphoma-prone mouse models, and the long plus intermediate isoforms (LF/IFPRLR) in human B-cell malignancies. To knockdown LF/IFPRLRs without suppressing expression of the counteractive short PRLR isoforms (SFPRLRs), we employ splice-modulating DNA oligomers. In SLE-prone mice, LFPRLR knockdown reduces numbers and proliferation of pathogenic B-cell subsets and lowers the risk of B-cell transformation by downregulating expression of activation-induced cytidine deaminase. LFPRLR knockdown in lymphoma-prone mice reduces B-cell numbers and their expression of BCL2 and TCL1. In overt human B-cell malignancies, LF/IFPRLR knockdown reduces B-cell viability and their MYC and BCL2 expression. Unlike normal B cells, human B-cell malignancies secrete autocrine PRL and often express no SFPRLRs. Neutralization of secreted PRL reduces the viability of B-cell malignancies. Knockdown of LF/IFPRLR reduces the growth of human B-cell malignancies in vitro and in vivo. Thus, LF/IFPRLR knockdown is a highly specific approach to block the evolution of B-cell neoplasms.
Collapse
Affiliation(s)
- Adeleh Taghi Khani
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Anil Kumar
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Ashly Sanchez Ortiz
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Kelly C Radecki
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, 92521, USA
| | - Soraya Aramburo
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Sung June Lee
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Zunsong Hu
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Behzad Damirchi
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
| | - Mary Y Lorenson
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, 92521, USA
| | - Xiwei Wu
- Department of Molecular and Cellular Biology, City of Hope National Medical Center, Duarte, CA, 91010, USA
| | - Zhaohui Gu
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA
- Department of Computational and Quantitative Medicine, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - William Stohl
- Division of Rheumatology, Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - Ignacio Sanz
- Department of Medicine, Division of Rheumatology, Lowance Center for Human Immunology, Emory University, Atlanta, GA, 30322, USA
| | - Eric Meffre
- Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Markus Müschen
- Center of Molecular and Cellular Oncology, Yale School of Medicine, 300 George Street, 06520, New Haven, CT, USA
| | - Stephen J Forman
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, 91010, USA
- Department of Immuno-Oncology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
- Department of Pediatrics, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Jean L Koff
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Ameae M Walker
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, 92521, USA.
| | - Srividya Swaminathan
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, 91016, USA.
- Department of Pediatrics, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA.
| |
Collapse
|
11
|
Tiguntsev VV, Gerasimova VI, Kornetova EG, Fedorenko OY, Kornetov AN, Goncharova AA, Poltavskaya EG, Boyko AS. [Association of the Level of Serum Prolactin with Polymorphic Variants of the GRIN2A, GPM3, and GPM7 Genes in Patients with Schizophrenia Taking Conventional and Atypical Antipsychotics]. Mol Biol (Mosk) 2023; 57:47-55. [PMID: 36976738 DOI: 10.31857/s0026898423010159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/22/2022] [Indexed: 03/29/2023]
Abstract
The dopamine, serotonin and glutamate systems are jointly involved in the pathogenesis and pharmacotherapy of schizophrenia. We formulated a hypothesis that polymorphic variants of the GRIN2A, GRM3, and GRM7 genes may be associated with the development of hyperprolactinemia in patients with schizophrenia taking conventional and atypical antipsychotics as basic treatment. 432 Caucasian patients diagnosed with schizophrenia were examined. DNA was isolated from peripheral blood leukocytes using the standard phenol-chloroform method. For pilot genotyping, 12 SNPs in the GRIN2A gene, 4 SNPs in the GRM3 gene, and 6 SNPs in the GRM7 gene were selected. Allelic variants of the studied polymorphisms were determined by real-time PCR. The level of prolactin was determined by enzyme immunoassay. Among persons taking conventional antipsychotics, there were statistically significant differences in the distribution of genotype and allele frequencies in groups of patients with normal and elevated prolactin levels for the GRIN2A rs9989388 and GRIN2A rs7192557 polymorphic variants, as well as differences in serum prolactin levels depending on the genotype of the GRM7 rs3749380 polymorphic variant. Among persons taking atypical antipsychotics, statistically significant differences were found in the frequencies of genotypes and alleles of the GRM3 rs6465084 polymorphic variant. An association of polymorphic variants of the GRIN2A, GRM3, and GRM7 genes with the development of hyperprolactinemia in patients with schizophrenia taking conventional and atypical antipsychotics has been established for the first time. The identified associations of polymorphic variants of the GRIN2A, GRM3 and GRM7 genes with the development of hyperprolactinemia in patients with schizophrenia taking conventional and atypical antipsychotics have been established for the first time. These associations not only confirm the close connection of the dopaminergic, serotonergic, and glutamatergic systems in the development of schizophrenia, but also demonstrate the potential of taking into account the genetic component during therapy.
Collapse
Affiliation(s)
- V V Tiguntsev
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - V I Gerasimova
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - E G Kornetova
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - O Yu Fedorenko
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - A N Kornetov
- Siberian State Medical University, Tomsk, 634050 Russia
| | - A A Goncharova
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - E G Poltavskaya
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| | - A S Boyko
- Research Institute of Mental Health, Tomsk National Research Medical Center, Tomsk, 634014 Russia
| |
Collapse
|
12
|
Han Q, Yan X, Ye Y, Han L, Ma X, Wang T, Cao D, Zhang WJ. ZBTB20 Regulates Prolactin Expression and Lactotrope Function in Adult Mice. Endocrinology 2022; 163:6775161. [PMID: 36288554 DOI: 10.1210/endocr/bqac181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Indexed: 11/19/2022]
Abstract
Lactotropes are prolactin (PRL)-secreting endocrine cells in the anterior pituitary. We have established the zinc finger protein ZBTB20 as an essential transcription factor for lactotrope specification, the disruption of which results in complete loss of lactotropes in mice. However, the potential role of ZBTB20 in mature lactotropes remains unclear. Here we demonstrate that ZBTB20 acts as a critical cell-autonomous regulator for PRL expression in mature lactotropes in adult mice. Via a CRISPR/Cas9 approach, we first generated a tamoxifen-inducible Prl-CreER knockin mouse line that could efficiently mediate gene recombination specifically in lactotropes. Conditional deletion of the Zbtb20 gene specifically in mature lactotropes at adulthood led to a substantial decrease in PRL levels both in the pituitary and in plasma, without significant alterations of lactotrope relative density in the pituitary from male or female mice. Furthermore, conditional disruption of Zbtb20 in adult female mice did not significantly change pregnancy-elicited lactotrope expansion, but caused an impaired mammary gland expansion and lactation due to the PRL defect. Thus, our data point to an important role of ZBTB20 in regulating PRL expression and lactotrope function at adulthood.
Collapse
Affiliation(s)
- Qing Han
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Xuede Yan
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Yufei Ye
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Linhui Han
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Xianhua Ma
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Ting Wang
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Dongmei Cao
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
| | - Weiping J Zhang
- Department of Pathophysiology, Naval Medical University, Shanghai 200433, China
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| |
Collapse
|
13
|
Feng P, Wu J, Ren Y, Zhang L, Cao J, Yang L. Early pregnancy regulates the expression of prolactin and its receptor in the thymus, the liver, the spleen and lymph nodes in sheep. Domest Anim Endocrinol 2022; 81:106731. [PMID: 35635981 DOI: 10.1016/j.domaniend.2022.106731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/17/2022]
Abstract
As a pituitary hormone, prolactin (PRL) is also synthesized by immune system cells, and exerts its effects on the immune system by binding to its receptor (PRLR) via endocrine and paracrine/autocrine pathways. The immune organs adapt to the presence of fetal alloantigens during pregnancy, and the immune system is composed of primary organs and secondary organs. The objective of this study is to analyze the effects of early pregnancy on expression of PRL and PRLR in maternal immune organs in sheep. In this study, the thymus, lymph node, the spleen and the liver were sampled at day 16 of the estrous cycle, and at days 13, 16, and 25 of pregnancy in ewes. Expression of PRL and PRLR was analyzed through quantitative real-time PCR, Western blot and immunohistochemistry. Our data showed that there were an upregulation of PRL and PRLR in the thymus, lymph node and the spleen, and a downregulation in the liver during early pregnancy in ewes. In conclusion, it is reported for the first time that early pregnancy has tissue specific effects on expression of PRL isoform and PRLR isoform in the thymus, lymph node, the spleen and the liver, which may be owing to these organs exerting different functions during early pregnancy, and necessary for the successful pregnancy in sheep.
Collapse
Affiliation(s)
- P Feng
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - J Wu
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - Y Ren
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - L Zhang
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - J Cao
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - L Yang
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China.
| |
Collapse
|
14
|
Pavlova NS, Gizatulina AR, Neretina TV, Smirnova OV. Expression of Opsin Genes in the Retina of Female and Male Three-Spined Sticklebacks Gasterosteus aculeatus L.: Effect of Freshwater Adaptation and Prolactin Administration. Biochemistry (Mosc) 2022; 87:215-224. [PMID: 35526850 DOI: 10.1134/s0006297922030038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Color vision sensitivity is crucial for fish adaptation during migration and reproduction. Prolactin and prolactin-like hormone are important regulators in both these processes. We hypothesized that prolactin influences the color vision sensitivity during freshwater migrations in fish. We studied the effects of prolactin and freshwater adaptation during the spawning period on the expression of opsin genes (SWS1, SWS2, RH2, LWS) in the retina of female and male three-spined sticklebacks Gasterosteus aculeatus L. Expression of the prolactin gene increased in the brain of females, but not males, while expression of the prolactin-like hormone decreased in the brain of both male and female sticklebacks during freshwater adaptation. Expression of the SWS2 gene decreased in the retina of females and males during freshwater adaptation and after prolactin administration. Expression of the SWS1 gene decreased in the retina of male sticklebacks after prolactin administration, but not during freshwater adaptation. Expression of the RH2 and LWS genes did not depend on prolactin administration in male and female sticklebacks. We conclude that expression of some opsin genes in the retina of sticklebacks is regulated by prolactin and depends on sex and freshwater adaptation. This expands our knowledge of the adaptive effects of prolactin on fish during freshwater migrations.
Collapse
Affiliation(s)
- Nadezhda S Pavlova
- Department of Human and Animal Physiology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Albina R Gizatulina
- Department of Physiology and General Pathology, Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Tatyana V Neretina
- Pertsov White Sea Biological Station, Moscow State University, 186671 Loukhsky District, Republic of Karelia, Russia
| | - Olga V Smirnova
- Department of Human and Animal Physiology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| |
Collapse
|
15
|
Akin L, Rizzoti K, Gregory LC, Corredor B, Le Quesne Stabej P, Williams H, Buonocore F, Mouilleron S, Capra V, McGlacken-Byrne SM, Martos-Moreno GÁ, Azmanov DN, Kendirci M, Kurtoglu S, Suntharalingham JP, Galichet C, Gustincich S, Tasic V, Achermann JC, Accogli A, Filipovska A, Tuilpakov A, Maghnie M, Gucev Z, Gonen ZB, Pérez-Jurado LA, Robinson I, Lovell-Badge R, Argente J, Dattani MT. Pathogenic variants in RNPC3 are associated with hypopituitarism and primary ovarian insufficiency. Genet Med 2022; 24:384-397. [PMID: 34906446 PMCID: PMC7612377 DOI: 10.1016/j.gim.2021.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/15/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022] Open
Abstract
PURPOSE We aimed to investigate the molecular basis underlying a novel phenotype including hypopituitarism associated with primary ovarian insufficiency. METHODS We used next-generation sequencing to identify variants in all pedigrees. Expression of Rnpc3/RNPC3 was analyzed by in situ hybridization on murine/human embryonic sections. CRISPR/Cas9 was used to generate mice carrying the p.Leu483Phe pathogenic variant in the conserved murine Rnpc3 RRM2 domain. RESULTS We described 15 patients from 9 pedigrees with biallelic pathogenic variants in RNPC3, encoding a specific protein component of the minor spliceosome, which is associated with a hypopituitary phenotype, including severe growth hormone (GH) deficiency, hypoprolactinemia, variable thyrotropin (also known as thyroid-stimulating hormone) deficiency, and anterior pituitary hypoplasia. Primary ovarian insufficiency was diagnosed in 8 of 9 affected females, whereas males had normal gonadal function. In addition, 2 affected males displayed normal growth when off GH treatment despite severe biochemical GH deficiency. In both mouse and human embryos, Rnpc3/RNPC3 was expressed in the developing forebrain, including the hypothalamus and Rathke's pouch. Female Rnpc3 mutant mice displayed a reduction in pituitary GH content but with no reproductive impairment in young mice. Male mice exhibited no obvious phenotype. CONCLUSION Our findings suggest novel insights into the role of RNPC3 in female-specific gonadal function and emphasize a critical role for the minor spliceosome in pituitary and ovarian development and function.
Collapse
Affiliation(s)
- Leyla Akin
- Department of Paediatric Endocrinology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey; Department of Paediatric Endocrinology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
| | - Karine Rizzoti
- Stem Cell Biology and Developmental Genetics Lab, The Francis Crick Institute, London, United Kingdom
| | - Louise C Gregory
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Beatriz Corredor
- Departments of Paediatrics and Paediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Polona Le Quesne Stabej
- GOSgene, Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom; Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Hywel Williams
- Division of Cancer and Genetics, Genetics and Genomic Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Federica Buonocore
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Stephane Mouilleron
- Structural Biology Science Technology Platforms, The Francis Crick Institute, London, United Kingdom
| | - Valeria Capra
- Unit of Medical Genetics, IRCCS Giannina Gaslini Institute, Genova, Italy
| | - Sinead M McGlacken-Byrne
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Gabriel Á Martos-Moreno
- Departments of Paediatrics and Paediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Department of Paediatrics, Universidad Autónoma de Madrid, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Dimitar N Azmanov
- Centre of Medical Research, The University of Western Australia and Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia; Department of Diagnostic Genomics, PathWest, QEII MedicalCentre, Perth, Western Australia, Australia
| | - Mustafa Kendirci
- Department of Paediatric Endocrinology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Selim Kurtoglu
- Department of Paediatric Endocrinology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Jenifer P Suntharalingham
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Christophe Galichet
- Stem Cell Biology and Developmental Genetics Lab, The Francis Crick Institute, London, United Kingdom
| | | | - Velibor Tasic
- University Children's Hospital, Medical School, Skopje, North Macedonia
| | - John C Achermann
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Andrea Accogli
- Division of Medical Genetics, Department of Specialized Medicine, Montreal Children's Hospital, McGill University Health Centre (MUHC), Montreal, QC, Canada; Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Aleksandra Filipovska
- Centre of Medical Research, The University of Western Australia and Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia; Telethon Kids Institute, Perth Children's Hospital, Nedlands, Western Australia, Australia
| | - Anatoly Tuilpakov
- Department of Endocrine Genetics, Research Centre for Medical Genetics, Moscow, Russia; Department of Inherited Endocrine Disorders, Endocrinology Research Centre, Moscow, Russia
| | - Mohamad Maghnie
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy; Department of Paediatrics, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Zoran Gucev
- University Children's Hospital, Medical School, Skopje, North Macedonia
| | - Zeynep Burcin Gonen
- Oral and Maxillofacial Surgery, Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Luis A Pérez-Jurado
- Genetics Unit, Universitat Pompeu Fabra, Hospital del Mar Research Institute (IMIM) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Barcelona, Spain; South Australian Health and Medical Research Institute (SAHMRI), The University of Adelaide, Adelaide, South Australia, Australia
| | - Iain Robinson
- Stem Cell Biology and Developmental Genetics Lab, The Francis Crick Institute, London, United Kingdom
| | - Robin Lovell-Badge
- Stem Cell Biology and Developmental Genetics Lab, The Francis Crick Institute, London, United Kingdom
| | - Jesús Argente
- Departments of Paediatrics and Paediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Department of Paediatrics, Universidad Autónoma de Madrid, Madrid, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain; IMDEA Food Institute, Campus of International Excellence UAM+CSIC, Madrid, Spain
| | - Mehul T Dattani
- Genetics and Genomic Medicine Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom; South Australian Health and Medical Research Institute (SAHMRI), The University of Adelaide, Adelaide, South Australia, Australia; Department of Paediatric Endocrinology, Great Ormond Street Hospital for Children, London, United Kingdom.
| |
Collapse
|
16
|
Yang M, Yang M, Lin Y, Meng F, Du X, Zeng X, Bu G. Characterization of prolactin (PRL) and PRL receptor (PRLR) in Chinese soft-shelled turtle: Molecular identification, ligand-receptor interaction and tissue distribution. Gen Comp Endocrinol 2022; 316:113941. [PMID: 34715089 DOI: 10.1016/j.ygcen.2021.113941] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 10/13/2021] [Accepted: 10/24/2021] [Indexed: 02/06/2023]
Abstract
Prolactin (PRL) plays crucial roles in many physiological and pathological processes through activating its specific membrane-anchored receptor (PRLR). Although this ligand-receptor pair has been extensively studied in mammals, birds and fishes, researches examining their significance is rather scarce in reptiles. Additionally, the interaction mechanism of PRL-PRLR has abortively understood across vertebrates, since two tandem repeated ligand-binding domains of PRLR have been identified in birds and few reptiles. To lay the foundation to clarify their roles and ligand-receptor interaction in reptiles, using Chinese soft-shelled turtle as model, the cDNAs containing open reading frame of PRL and PRLR were cloned. The cloned PRL consisted of 710 bp and encoded a precursor of 228 amino acid (-aa), while PRLR was 2658 bp in length and predicted to generate a 828-aa precursor. Furthermore, the recombinant PRL protein with high-purity was prepared from Escherichia coli (E. coli) strain Rosetta gamiB (DE3) by using cobalt resin. Using the 5 × STAT5-Luciferase reporter system, we found PRLR and PRLR-M2 (the PRLR-mutant lacking membrane-distal ligand-binding domain) could be dose-dependently activated by recombinant PRL, thereby triggering the intracellular JAK2-STAT5 signaling cascade, suggesting PRL-PRLR is functional in Chinese soft-shelled turtle, and the membrane-proximal ligand-binding domain of PRLR is the critical domain involving in PRL-binding. Quantitative real-time PCR revealed that PRL was predominantly and abundantly expressed in pituitary, while PRLR exhibited ubiquitous expression in all of the tissues examined. Collectively, our data indicate the PRL-PRLR pair may function in reptiles including Chinese soft-shelled turtle, in a way similar to that in birds.
Collapse
Affiliation(s)
- Ming Yang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Ming Yang
- Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Ying Lin
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Fengyan Meng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xiaogang Du
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xianyin Zeng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China.
| | - Guixian Bu
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China.
| |
Collapse
|
17
|
Duc Nguyen H, Hoang NMH, Jo WH, Ham JR, Lee MK, Kim MS. Associations among the TREM-1 Pathway, Tau Hyperphosphorylation, Prolactin Expression, and Metformin in Diabetes Mice. Neuroimmunomodulation 2022; 29:359-368. [PMID: 35130556 DOI: 10.1159/000521013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 11/08/2021] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Diabetes mellitus (DM) is a risk factor for Alzheimer's disease (AD). Increasing evidence indicates that the triggering receptor expressed on myeloid cells (TREM)-1 amplifies chronic inflammation, as well as the roles of prolactin (PRL) and metformin (MET) in tau hyperphosphorylation. However, the associations among TREM-1, tau hyperphosphorylation, PRL expression, and MET in DM remain unclear. METHODS Streptozotocin was used to induce experimental DM in C57BL/6N mice. MET was orally administered at a dose of 400 mg/kg body weight for 6 weeks prior to hippocampal collection in DM mice. Various parameters pertaining to the TREM-1 pathway, tau hyperphosphorylation, PRL, and related factors were analyzed. RESULTS Quantitative polymerase chain reaction and Western blot analysis demonstrated that the expression levels of TREM-1, DAP12, casp1, interleukin-1β, Cox2, inducible nitric oxide synthase, pituitary transcriptional factor-1 (Pit-1), and PRL were significantly increased in the hippocampus of DM mice; the expression levels of these pro-inflammatory mediators, PRL receptor (PRLR) short or long (PRLR-S and PRLR-L), and PRL regulatory element-binding (Preb) protein in DM mice treated with MET (DM + MET) were significantly decreased compared with those in control (CON) mice. The levels of p-Tau and glycogen synthase kinase-3 in the DM group were significantly higher than those in the CON group and significantly lower than those in the DM + MET group. CONCLUSION We confirmed the therapeutic potential of MET for both DM and neurodegeneration. Our findings shed new light on the effects of DM on the pathophysiology of AD via the TREM-1 pathway and PRL expression. Thus, an improved understanding of the TREM-1 pathway in hyperglycemic conditions, as well as PRL, Preb, Pit-1, PRLR-L, and PRLR-S gene expression in the liver, brain, and other sites, may help unravel the pathogenesis of insulin resistance and neurodegeneration.
Collapse
Affiliation(s)
- Hai Duc Nguyen
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Sunchon, Republic of Korea
| | - Ngoc Minh Hong Hoang
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Sunchon, Republic of Korea
| | - Won Hee Jo
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Sunchon, Republic of Korea
| | - Ju Ri Ham
- Department of Food and Nutrition, Sunchon National University, Suncheon, Republic of Korea
- Mokpo Marine Food-Industry Research Center, Mokpo, Jeonam, Republic of Korea
| | - Mi-Kyung Lee
- Department of Food and Nutrition, Sunchon National University, Suncheon, Republic of Korea
| | - Min Sun Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Sunchon, Republic of Korea
| |
Collapse
|
18
|
Kavarthapu R, Dufau ML. Prolactin receptor gene transcriptional control, regulatory modalities relevant to breast cancer resistance and invasiveness. Front Endocrinol (Lausanne) 2022; 13:949396. [PMID: 36187116 PMCID: PMC9520000 DOI: 10.3389/fendo.2022.949396] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/19/2022] [Indexed: 12/04/2022] Open
Abstract
The prolactin receptor (PRLR) is a member of the lactogen/cytokine receptor family, which mediates multiple actions of prolactin (PRL). PRL is a major hormone in the proliferation/differentiation of breast epithelium that is essential for lactation. It is also involved in breast cancer development, tumor growth and chemoresistance. Human PRLR expression is controlled at the transcriptional level by multiple promoters. Each promoter directs transcription/expression of a specific non-coding exon 1, a common non-coding exon 2 and coding exons E3-11. The identification of exon 11 of PRLR led to finding of alternative spliced products and two novel short forms (SF) that can inhibit the long form (LF) of PRLR activity with relevance in physiological regulation and breast cancer. Homo and heterodimers of LF and SF are formed in the absence of PRL that acts as a conformational modifier. Heterodimerization of SF with LF is a major mechanism through which SF inhibits some signaling pathways originating at the LF. Biochemical/molecular modeling approaches demonstrated that the human PRLR conformation stabilized by extracellular intramolecular S-S bonds and several amino acids in the extracellular D1 domain of PRLR SF are required for its inhibitory actions on PRLR LF-mediated functions. Studies in breast cancer cells demonstrated that the transcription of PRLR was directed by the preferentially utilized PIII promoter, which lacks an estrogen responsive element. Complex formation of non-DNA bound ERα dimer with Sp1 and C/EBPβ dimers bound to their sites at the PRLR promoter is required for basal activity. Estradiol induces transcriptional activation/expression of the PRLR gene, and subsequent studies revealed the essential role of autocrine PRL released by breast cancer cells and CDK7 in estradiol-induced PRLR promoter activation and upregulation. Other studies revealed stimulation of the PRLR promoter activity and PRLR LF protein by PRL in the absence of estrogen via the STAT5/phospho-ERα activation loop. Additionally, EGF/ERBB1 can induce the transcription of PRLR independent of estrogen and prolactin. The various regulatory modalities contributing to the upregulation of PRLR provide options for the development of therapeutic approaches to mitigate its participation in breast cancer progression and resistance.
Collapse
|
19
|
Friedrich C, Neugebauer L, Zamora M, Robles JP, Martínez de la Escalera G, Clapp C, Bertsch T, Triebel J. Plasmin generates vasoinhibin-like peptides by cleaving prolactin and placental lactogen. Mol Cell Endocrinol 2021; 538:111471. [PMID: 34601001 DOI: 10.1016/j.mce.2021.111471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/16/2021] [Accepted: 09/29/2021] [Indexed: 10/20/2022]
Abstract
Vasoinhibin is an antiangiogenic, profibrinolytic peptide generated by the proteolytic cleavage of the pituitary hormone prolactin by cathepsin D, matrix metalloproteinases, and bone morphogenetic protein-1. Vasoinhibin can also be generated when placental lactogen or growth hormone are enzymatically cleaved. Here, it is investigated whether plasmin cleaves human prolactin and placental lactogen to generate vasoinhibin-like peptides. Co-incubation of prolactin and placental lactogen with plasmin was performed and analyzed by gel electrophoresis and Western blotting. Mass spectrometric analyses were carried out for sequence validation and precise cleavage site identification. The cleavage sites responsible for the generation of the vasoinhibin-like peptides were located at K170-E171 in prolactin and R160-T161 in placental lactogen. Various genetic variants of the human prolactin and placental lactogen genes are projected to affect proteolytic generation of the vasoinhibin-like peptides. The endogenous counterparts of the vasoinhibin-like peptides generated by plasmin may represent vasoinhibin-isoforms with inhibitory effects on vasculature and coagulation.
Collapse
Affiliation(s)
- Christin Friedrich
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, Nuremberg, Germany
| | - Leon Neugebauer
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, Nuremberg, Germany
| | - Magdalena Zamora
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, Nuremberg, Germany; Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, Mexico
| | - Juan Pablo Robles
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, Mexico
| | | | - Carmen Clapp
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, Mexico
| | - Thomas Bertsch
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, Nuremberg, Germany
| | - Jakob Triebel
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, Nuremberg, Germany.
| |
Collapse
|
20
|
Ruggiero C, Altieri B, Arnold E, Siqueiros‐Marquez L, Doghman‐Bouguerra M, Detomas M, Durand N, Jarjat M, Kurlbaum M, Chatonnet F, Deutschbein T, Clapp C, Lalli E. Integrative genomic analysis reveals a conserved role for prolactin signalling in the regulation of adrenal function. Clin Transl Med 2021; 11:e630. [PMID: 34841740 PMCID: PMC8574957 DOI: 10.1002/ctm2.630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/01/2021] [Accepted: 10/11/2021] [Indexed: 02/05/2023] Open
Affiliation(s)
- Carmen Ruggiero
- Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR 7275ValbonneFrance
- Université Côte d'AzurValbonneFrance
| | - Barbara Altieri
- Department of Internal Medicine I–Division of Endocrinology and DiabetesUniversity HospitalUniversity of WürzburgWürzburgGermany
| | - Edith Arnold
- Instituto de NeurobiologíaUniversidad Nacional Autónoma de México (UNAM)QueretaroMexico
- CONACYT‐Instituto de NeurobiologíaUniversidad Nacional Autónoma de México (UNAM)QueretaroMexico
| | | | - Mabrouka Doghman‐Bouguerra
- Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR 7275ValbonneFrance
- Université Côte d'AzurValbonneFrance
| | - Mario Detomas
- Department of Internal Medicine I–Division of Endocrinology and DiabetesUniversity HospitalUniversity of WürzburgWürzburgGermany
| | - Nelly Durand
- Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR 7275ValbonneFrance
- Université Côte d'AzurValbonneFrance
| | - Marielle Jarjat
- Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR 7275ValbonneFrance
- Université Côte d'AzurValbonneFrance
| | - Max Kurlbaum
- Department of Internal Medicine I–Division of Endocrinology and DiabetesUniversity HospitalUniversity of WürzburgWürzburgGermany
- Central LaboratoryCore Unit Clinical Mass SpectrometryUniversity Hospital WürzburgWürzburgGermany
| | - Fabrice Chatonnet
- Université de Rennes 1InsermÉtablissement Français du Sang de BretagneRennesFrance
- Laboratoire d'HématologiePôle de BiologieCentre Hospitalier UniversitaireRennesFrance
| | - Timo Deutschbein
- Department of Internal Medicine I–Division of Endocrinology and DiabetesUniversity HospitalUniversity of WürzburgWürzburgGermany
- Medicover Oldenburg MVZOldenburgGermany
| | - Carmen Clapp
- Instituto de NeurobiologíaUniversidad Nacional Autónoma de México (UNAM)QueretaroMexico
| | - Enzo Lalli
- Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR 7275ValbonneFrance
- Université Côte d'AzurValbonneFrance
- InsermValbonneFrance
| |
Collapse
|
21
|
Wang S, Wang A, Zhang Y, Zhu K, Wang X, Chen Y, Wu J. The role of MAPK11/12/13/14 (p38 MAPK) protein in dopamine agonist-resistant prolactinomas. BMC Endocr Disord 2021; 21:235. [PMID: 34814904 PMCID: PMC8609849 DOI: 10.1186/s12902-021-00900-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 11/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prolactinoma is a functional pituitary adenoma that secretes excessive prolactin. Dopamine agonists (DAs) such as bromocriptine (BRC) are the first-line treatment for prolactinomas, but the resistance rate is increasing year by year, creating a clinical challenge. Therefore, it is urgent to explore the molecular mechanism of bromocriptine resistance in prolactinomas. Activation of the P38 MAPK pathway affects multidrug resistance in tumours. Our previous studies have demonstrated that inhibiting MAPK14 can suppress the occurrence of prolactinoma, but the role of MAPK11/12/13/14 (p38 MAPK) signalling in dopamine agonist-resistant prolactinomas is still unclear. METHODS A prolactinoma rat model was established to determine the effect of bromocriptine on MAPK11/12/13/14 signalling. DA-resistant GH3 cells and DA-sensitive MMQ cells were used, and the role of MAPK11/12/13/14 in bromocriptine-resistant prolactinomas was preliminarily verified by western blot, RT-qPCR, ELISA, flow cytometry and CCK-8 experiments. The effects of MAPK11 or MAPK14 on bromocriptine-resistant prolactinomas were further verified by siRNA transfection experiments. RESULTS Bromocriptine was used to treat rat prolactinoma by upregulating DRD2 expression and downregulating the expression level of MAPK11/12/13/14 in vivo experiments. The in vitro experiments showed that GH3 cells are resistant to bromocriptine and that MMQ cells are sensitive to bromocriptine. Bromocriptine could significantly reduce the expression of MAPK12 and MAPK13 in GH3 cells and MMQ cells. Bromocriptine could significantly reduce the expression of MAPK11, MAPK14, NF-κB p65 and Bcl2 in MMQ but had no effect on MAPK11, MAPK14, NF-κB p65 and Bcl2 in GH3 cells. In addition, knockdown of MAPK11 and MAPK14 in GH3 cells by siRNA transfection reversed the resistance of GH3 cells to bromocriptine, and haloperidol (HAL) blocked the inhibitory effect of bromocriptine on MAPK14, MAPK11, and PRL in MMQ cells. Our findings show that MAPK11 and MAPK14 proteins are involved in bromocriptine resistance in prolactinomas. CONCLUSION Bromocriptine reduces the expression of MAPK11/12/13/14 in prolactinomas, and MAPK11 and MAPK14 are involved in bromocriptine resistance in prolactinomas by regulating apoptosis. Reducing the expression of MAPK11 or MAPK14 can reverse bromocriptine resistance in prolactinomas.
Collapse
Affiliation(s)
- Shuman Wang
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China
| | - Aihua Wang
- Health Examination Center, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
| | - Yu Zhang
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China
| | - Kejing Zhu
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China
| | - Xiong Wang
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
| | - Yonggang Chen
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
| | - Jinhu Wu
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China.
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China.
| |
Collapse
|
22
|
Affonso R, Suzuki MF, Magalhães GS, Bartolini P. Influence of the expression vector and its elements on recombinant human prolactin synthesis in Escherichia coli; co-directional orientation of replication and transcription is highly critical. J Microbiol Methods 2021; 191:106340. [PMID: 34715249 DOI: 10.1016/j.mimet.2021.106340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022]
Abstract
The aim of the present work was to define a bacterial expression system that is particularly efficient for the synthesis of recombinant human prolactin (hPRL). In previous work, based on experiments that were basically carried out in parallel with the present ones, the synthesis of rec-hPRL by the p1813-hPRL vector in E. coli HB2151 was >500 mg/L, while it was much lower here (2.5-4-fold), in the RB791 and RRI strains. The highest positive influence on rec-hPRL synthesis was due to the transcription-replication co-orientation of hPRL cDNA and the ori/antibiotic resistance gene, responsible for up to a ~ 5-6-fold higher expression yield. In conclusion, this work confirmed that each bacterial strain of E. coli has a genetic background that can allow a different level of heterologous protein synthesis. The individual study of each element indicated that its action critically depends on the reading orientation in which it is located inside the vector: co-directional orientation of replication and transcription, in fact, greatly increased the level of rec-hPRL expression.
Collapse
Affiliation(s)
- Regina Affonso
- Biotechnology Center, Instituto de Pesquisas Energéticas e Nucleares, IPEN - CNEN/SP, São Paulo, SP, Brazil.
| | - Miriam Fussae Suzuki
- Biotechnology Center, Instituto de Pesquisas Energéticas e Nucleares, IPEN - CNEN/SP, São Paulo, SP, Brazil.
| | | | - Paolo Bartolini
- Biotechnology Center, Instituto de Pesquisas Energéticas e Nucleares, IPEN - CNEN/SP, São Paulo, SP, Brazil.
| |
Collapse
|
23
|
Cai L, Chen J, Lu J, Li Q, Chen X, Zhang L, Wu J, Zheng W, Wang C, Su Z. Tumor stem-like cells isolated from MMQ cells resist to dopamine agonist treatment. Mol Cell Endocrinol 2021; 535:111396. [PMID: 34271069 DOI: 10.1016/j.mce.2021.111396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Although tumor stem-like cells (TSLCs) have been studied in a range of malignant tumors, evidence for the presence of these cells in pituitary adenomas needs further exploration. Here, we identified a small subset of sphere-forming cells possess tumor stem-like cell properties in rat prolactinoma MMQ cells, which resist to dopamine agonist treatment. Comparing to MMQ cells, sphere-forming cells showed higher cell viability after dopamine agonist (DA) treatment. Furthermore, the cells showed lower expression of prolactin (PRL) and dopamine 2 receptor (D2R). On the contrary, the daughter tumor cells differentiated from these cells restored the sensitivity to DA and showed high expression of PRL and D2R. The lower D2R expression and DA resistance might be due to DNA hypermethylation of D2R promoter. Our study demonstrates that the sphere-forming cells isolated from MMQ cells possess the trait of TSLCs and resist to DA treatment, which offers the opportunity to further investigate the mechanisms underlying tumor recurrence based on TSLCs.
Collapse
Affiliation(s)
- Lin Cai
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jian Chen
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China
| | - Jianglong Lu
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Qun Li
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xianbin Chen
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Linlin Zhang
- Department of Stomatology, Shanghai Minhang District Dental Clinic, Fudan University, Shanghai, 201100, China
| | - Jinsen Wu
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Weiming Zheng
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Chengde Wang
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Zhipeng Su
- Department of Neurosurgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| |
Collapse
|
24
|
Mo G, Hu B, Wang G, Xie T, Fu H, Zhang Q, Fu R, Feng M, Luo W, Li H, Nie Q, Zhang X. Prolactin affects the disappearance of ALV-J viremia in vivo and inhibits viral infection. Vet Microbiol 2021; 261:109205. [PMID: 34391195 DOI: 10.1016/j.vetmic.2021.109205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/06/2021] [Indexed: 12/27/2022]
Abstract
Based on the RNA-seq data of chicken spleen tissues infected with J subgroup avian leukosis virus (ALV-J), we found that prolactin (PRL) gene was one of differentially expressed gene. We measured ALV-J viremia and PRL levels in the plasma of two groups of ALV-J-infected adult chickens. Furthermore, recombinant chicken PRL (cPRL) was used to assess how cPRL affects ALV-J virus replication both in vivo and in vitro. The results showed that PRL levels in the plasma of adult chickens infected with ALV-J were lower than those of uninfected chickens, and that the difference was more significant in the avian leukemia pathological apparent changes. Notably, the fluctuations in PRL levels might influence the disappearance of ALV-J viremia in chickens. The in vitro results showed that preincubating DF-1 cells with cPRL before ALV-J infection elicited the best antiviral effects. Moreover, these effects were not dose-dependent. in vivo, injection of cPRL into ALV-J-infected chicks could reduce the levels of viremia at the 14 days post infection (dpi). Additionally, the expression of the interferon-stimulated genes oligoadenylate synthetase-like (OSAL) and vasoactive intestinal peptide (VIP) increased, and that of the proinflammatory cytokine-encoding TNTα, IL-1β, and IL-6 genes decreased in the spleens of ALV-J-infected chicks injected with cPRL, leading to inhibition of viral replication at the 7 dpi. Collectively, our data demonstrated that PRL plays an important antiviral role in the immune response to ALV-J infection. This is the first report of the relationship between ALV-J infection and PRL. It is of great significance for the prevention and control of ALV-J.
Collapse
Affiliation(s)
- Guodong Mo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China; Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region, Guangxi Key Laboratory of Livestock Genetic Improvement, Nanning, 530005, Guangxi, China
| | - Bowen Hu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Guiyan Wang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Tingting Xie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Huali Fu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Qihong Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Rong Fu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Min Feng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Wen Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Hongmei Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, Guangdong, China.
| |
Collapse
|
25
|
Cunha-Saraiva F, Martins RST, Power DM, Balshine S, Schaedelin FC. Galanin and prolactin expression in relation to parental care in two sympatric cichlid species from Lake Tanganyika. Gen Comp Endocrinol 2021; 309:113785. [PMID: 33862047 DOI: 10.1016/j.ygcen.2021.113785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/23/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Our understanding of the hormonal mechanisms underlying parental care mainly stems from research on species with uniparental care. Far less is known about the physiological changes underlying motherhood and fatherhood in biparental caring species. Here, using two biparental caring cichlid species (Neolamprologus caudopunctatus and Neolamprologus pulcher), we explored the relative gene-expression levels of two genes implicated in the control of parental care, galanin (gal) and prolactin (prl). We investigated whole brain gene expression levels in both, male and female caring parents, as well as in non-caring individuals of both species. Caring males had higher prl and gal mRNA levels compared to caring females in both fish species. Expression of gal was highest when young were mobile and the need for parental defense was greatest and gal was lowest during the more stationary egg tending phase in N. caudopunctatus. The onset of parenthood was associated with lower expression of prl and higher expression of gal in N. pulcher, but this pattern was not observed in N. caudopunctatus. Our study demonstrates that gal gene expression is correlated with changes in parental care in two biparental cichlid species and extends both knowledge and taxonomic coverage of the possible neurogenetic mechanisms underlying parental care.
Collapse
Affiliation(s)
- Filipa Cunha-Saraiva
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, Austria.
| | - Rute S T Martins
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Deborah M Power
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Sigal Balshine
- Aquatic Behavioural Ecology Laboratory, Department of Psychology, Neuroscience, & Behaviour, McMaster University, Ontario, Canada
| | - Franziska C Schaedelin
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, Austria
| |
Collapse
|
26
|
Abstract
CONTEXT Isolated prolactin deficiency is a rare disorder manifesting as absence of puerperal lactation. We identified a 2-generation family with 3 women experiencing alactogenesis. OBJECTIVE We hypothesized a heterozygous genetic mutation. METHODS This was a family-based study. Two generations of women (proband, sister, and niece) with puerperal alactogenesis and one control were studied. Prolactin levels in the 3 women ranged from 0.618 to 1.4 ng/mL (range, 2.8-29.2 ng/mL). All the women had regular menstrual cycles during their reproductive years. The niece required fertility treatment to become pregnant and the proband and sister underwent menopause before age 45 years. Prolactin gene (PRL) exons 1 to 5 were sequenced. We sought a heterozygous, deleterious gene variant with functional consequences. RESULTS We identified a heterozygous mutation (c.658C > T) changing CGA to TGA (p.Arg220Ter) in exon 5 of the prolactin gene. Transfection of PRL containing the stop gain mutation resulted in similar intracellular prolactin levels compared to PRL wild type, but little detectable immunoactive or bioactive prolactin in conditioned medium. Prolactin secretion was also impaired by a PRL stop gain mutation deleting both of the terminal cysteine amino acids (c.652A > T; p.Lys218Ter). CONCLUSION This is the first report of a PRL mutation causing familial prolactin deficiency and alactogenesis. The loss of the terminal cysteine resulted in failure of prolactin secretion. Secretion was not rescued by deleting the penultimate cysteine, with which it forms a disulfide bond. These data suggest that the PRL C terminal is critical for protein secretion.
Collapse
Affiliation(s)
- Mika Moriwaki
- Division of Endocrinology, Metabolism and Diabetes, University of Utah, Salt Lake City, Utah 84112, USA
| | - Corrine K Welt
- Division of Endocrinology, Metabolism and Diabetes, University of Utah, Salt Lake City, Utah 84112, USA
- Correspondence: Corrine K. Welt, MD, Division of Endocrinology, Metabolism and Diabetes, University of Utah, Eccles Institute of Human Genetics, 15 N 2030 E, Salt Lake City, UT 84112, USA.
| |
Collapse
|
27
|
Vélez EJ, Nasri A, Unniappan S. Nesfatin-1 and Nesfatin-1-like peptide suppress basal and TRH-Induced expression of prolactin and prolactin regulatory element-binding protein mRNAs in rat GH3 somatolactotrophs. Mol Cell Endocrinol 2021; 529:111269. [PMID: 33819522 DOI: 10.1016/j.mce.2021.111269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/20/2021] [Accepted: 03/29/2021] [Indexed: 11/23/2022]
Abstract
Prolactin (PRL), mainly synthesized and secreted by the lactotrophs and somatolactotrophs of the anterior pituitary, is a pleiotropic hormone that regulates lactation. In the last decade, nesfatin-1 (NESF) and NESF-like peptide (NLP), encoded in nucleobindin 1 and 2 (NUCB1 and NUCB2), respectively, were characterized as metabolic factors with a potential role in the control of pituitary hormones. We hypothesized that NUCBs and their encoded peptides (NESF and NLP) suppress PRL transcription in the pituitary. The main objective of this research was to determine whether exogenous NESF and NLP, and/or endogenous NUCB1 and NUCB2 regulate the expression of prl and preb mRNAs. Using immortalized rat somatolactotrophs (GH3 cells), dose-response studies were performed to test whether NESF and NLP affect prl and preb. Moreover, the ability of these peptides to modulate the effects of the PRL stimulator thyrotropin releasing hormone (TRH) was studied. Besides, the effects of siRNA-mediated knockdown of endogenous NUCBs on prl and preb mRNAs were determined. NESF and NLP reduced the transcription of prl and preb in GH3 cells. Both NESF and NLP also prevented the stimulatory effects of TRH prl and preb expression. The knockdown of endogenous NUCB1 attenuates both basal prl and TRH-induced expression of prl and preb, while the silencing of NUCBs did not affect the actions of exogenous NESF or NLP. Overall, this work reveals that NUCBs and encoded-peptides are novel regulators of PRL. Future research should test whether the effects observed here in GH3 cells are preserved both in vivo and at the post-transcriptional level.
Collapse
Affiliation(s)
- Emilio J Vélez
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Atefeh Nasri
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Suraj Unniappan
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
| |
Collapse
|
28
|
Suzuki S, Matsuo K, Ito Y, Kobayashi A, Kokumai T, Furuya A, Ueda O, Mukai T, Yano K, Fujieda K, Okuno A, Tanahashi Y, Azuma H. A mutation of the β-domain in POU1F1 causes pituitary deficiency due to dominant PIT-1β expression. Eur J Endocrinol 2021; 185:1-12. [PMID: 33886498 DOI: 10.1530/eje-20-1313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/21/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND POU1F1 encodes both PIT-1α, which plays pivotal roles in pituitary development and GH, PRL and TSHB expression, and the alternatively spliced isoform PIT-1β, which contains an insertion of 26-amino acids (β-domain) in the transactivation domain of PIT-1α due to the use of an alternative splice acceptor at the end of the first intron. PIT-1β is expressed at much lower levels than PIT-1α and represses endogenous PIT-1α transcriptional activity. Although POU1F1 mutations lead to combined pituitary hormone deficiency (CPHD), no patients with β-domain mutations have been reported. RESULTS Here, we report that a three-generation family exhibited different degrees of CPHD, including growth hormone deficiency with intrafamilial variability of prolactin/TSH insufficiency and unexpected prolactinoma occurrence. The CPHD was due to a novel POU1F1 heterozygous variant (c.143-69T>G) in intron 1 of PIT-1α (RefSeq number NM_000306) or as c.152T>G (p.Ile51Ser) in exon 2 of PIT-1β (NM_001122757). Gene splicing experiments showed that this mutation yielded the PIT-1β transcript without other transcripts. The lymphocyte PIT-1β mRNA expression was significantly higher in the patients with the heterozygous mutation than a control. A luciferase reporter assay revealed that the PIT-1β-Ile51Ser mutant repressed PIT-1α and abolished transactivation capacity for the rat prolactin promoter in GH3 pituitary cells. CONCLUSIONS We describe, for the first time, that the PIT-1β mutation can cause CPHD through a novel genetic mechanism, such as PIT-1β overexpression, and that POU1F1 mutation might be associated with a prolactinoma. Analysis of new patients and long-term follow-up are needed to clarify the characteristics of PIT-1β mutations.
Collapse
Affiliation(s)
- Shigeru Suzuki
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Kumihiro Matsuo
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Yoshiya Ito
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Atsushi Kobayashi
- Division of Metabolism and Biosystemic Science, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Takahide Kokumai
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Akiko Furuya
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Osamu Ueda
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Tokuo Mukai
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Koichi Yano
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Kenji Fujieda
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
- Department of Pediatrics, Asahikawa Medial University, Asahikawa, Japan
| | - Akimasa Okuno
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
- Asahikawa Medical University, Asahikawa, Japan
| | - Yusuke Tanahashi
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| | - Hiroshi Azuma
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Japan
| |
Collapse
|
29
|
Nguyen TD, Miyatake Y, Yoshida T, Kawahara H, Hanayama R. Tumor-secreted proliferin-1 regulates adipogenesis and lipolysis in cachexia. Int J Cancer 2021; 148:1982-1992. [PMID: 33252827 DOI: 10.1002/ijc.33418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/30/2020] [Accepted: 11/24/2020] [Indexed: 01/22/2023]
Abstract
Cancer-associated cachexia (CAC) is a common syndrome in cancer patients and is characterized by loss of body weight accompanied by the atrophy of fat and skeletal muscle. Metabolic changes are a critical factor in CAC; however, the mechanisms through which tumors inhibit adipogenesis and promote lipolysis are poorly understood. To clarify these mechanisms, we investigated adipogenesis-limiting factors released by tumors in a cell culture system. We identified proliferin-1 (PLF-1), a member of the growth hormone/prolactin gene family, as a key factor secreted from certain tumors that inhibited preadipocyte maturation and promoted the lipolysis of mature adipocytes. Importantly, mice transplanted with PLF-1-depleted tumor cells were protected from fat loss due to CAC. These data show that tumor-secreted PLF-1 plays an essential role in impaired adipogenesis and accelerated lipolysis and is a potential therapeutic target against CAC.
Collapse
Affiliation(s)
- Tuan Duc Nguyen
- Department of Immunology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Yuji Miyatake
- Department of Immunology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Takeshi Yoshida
- Department of Immunology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
- WPI Nano Life Science Institute (NanoLSI), Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hironori Kawahara
- Department of Immunology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Rikinari Hanayama
- Department of Immunology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
- WPI Nano Life Science Institute (NanoLSI), Kanazawa University, Kanazawa, Ishikawa, Japan
| |
Collapse
|
30
|
McNamara AV, Awais R, Momiji H, Dunham L, Featherstone K, Harper CV, Adamson AA, Semprini S, Jones NA, Spiller DG, Mullins JJ, Finkenstädt BF, Rand D, White MRH, Davis JRE. Transcription Factor Pit-1 Affects Transcriptional Timing in the Dual-Promoter Human Prolactin Gene. Endocrinology 2021; 162:6060060. [PMID: 33388754 PMCID: PMC7871365 DOI: 10.1210/endocr/bqaa249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Indexed: 12/31/2022]
Abstract
Gene transcription occurs in short bursts interspersed with silent periods, and these kinetics can be altered by promoter structure. The effect of alternate promoter architecture on transcription bursting is not known. We studied the human prolactin (hPRL) gene that contains 2 promoters, a pituitary-specific promoter that requires the transcription factor Pit-1 and displays dramatic transcriptional bursting activity and an alternate upstream promoter that is active in nonpituitary tissues. We studied large hPRL genomic fragments with luciferase reporters, and used bacterial artificial chromosome recombineering to manipulate critical promoter regions. Stochastic switch mathematical modelling of single-cell time-lapse luminescence image data revealed that the Pit-1-dependent promoter showed longer, higher-amplitude transcriptional bursts. Knockdown studies confirmed that the presence of Pit-1 stabilized and prolonged periods of active transcription. Pit-1 therefore plays an active role in establishing the timing of transcription cycles, in addition to its cell-specific functions.
Collapse
Affiliation(s)
- Anne V McNamara
- Systems Microscopy Centre, Division of Molecular and Cellular Function, School of Biological Sciences, Faculty Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Raheela Awais
- School of Life Sciences, University of Liverpool, Liverpool, UK
| | - Hiroshi Momiji
- Mathematics Institute & Zeeman Institute for Systems Biology, and Infectious Epidemiology Research, University of Warwick, Senate House Coventry, UK
| | - Lee Dunham
- Division of Diabetes, Endocrinology & Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Karen Featherstone
- Division of Diabetes, Endocrinology & Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Claire V Harper
- Department of Biology, Edge Hill University, Ormskirk, Lancashire, UK
| | - Antony A Adamson
- Genome Editing Unit, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Sabrina Semprini
- University/BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Nicholas A Jones
- Systems Microscopy Centre, Division of Molecular and Cellular Function, School of Biological Sciences, Faculty Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - David G Spiller
- Systems Microscopy Centre, Division of Molecular and Cellular Function, School of Biological Sciences, Faculty Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - John J Mullins
- University/BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Bärbel F Finkenstädt
- Mathematics Institute & Zeeman Institute for Systems Biology, and Infectious Epidemiology Research, University of Warwick, Senate House Coventry, UK
| | - David Rand
- Mathematics Institute & Zeeman Institute for Systems Biology, and Infectious Epidemiology Research, University of Warwick, Senate House Coventry, UK
| | - Michael R H White
- Systems Microscopy Centre, Division of Molecular and Cellular Function, School of Biological Sciences, Faculty Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Correspondence: Professor Michael R. H. White, Systems Microscopy Centre, Division of Molecular and Cellular Function, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, M13 9PT, UK. E-mail: ; or Professor Julian R. E. Davis, Division of Diabetes, Endocrinology & Gastroenterology, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, M13 9PT, UK. E-mail:
| | - Julian R E Davis
- Division of Diabetes, Endocrinology & Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Correspondence: Professor Michael R. H. White, Systems Microscopy Centre, Division of Molecular and Cellular Function, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, M13 9PT, UK. E-mail: ; or Professor Julian R. E. Davis, Division of Diabetes, Endocrinology & Gastroenterology, Faculty of Biology, Medicine & Health, Manchester Academic Health Sciences Centre, University of Manchester, M13 9PT, UK. E-mail:
| |
Collapse
|
31
|
Costa-Brito AR, Quintela T, Gonçalves I, Duarte AC, Costa AR, Arosa FA, Cavaco JE, Lemos MC, Santos CRA. The Choroid Plexus Is an Alternative Source of Prolactin to the Rat Brain. Mol Neurobiol 2021; 58:1846-1858. [PMID: 33409838 DOI: 10.1007/s12035-020-02267-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
Among the more than 300 functions attributed to prolactin (PRL), this hormone has been associated with the induction of neurogenesis and differentiation of olfactory neurons especially during pregnancy, which are essential for maternal behavior. Despite the original hypothesis that PRL enters the central nervous system through a process mediated by PRL receptors (PRLR) at the choroid plexus (CP), recent data suggested that PRL transport into the brain is independent of its receptors. Based on transcriptomic data suggesting that PRL could be expressed in the CP, this work aimed to confirm PRL synthesis and secretion by CP epithelial cells (CPEC). The secretion of PRL and the distribution of PRLR in CPEC were further characterized using an in vitro model of the rat blood-cerebrospinal fluid barrier. RT-PCR analysis of PRL transcripts showed its presence in pregnant rat CP, in CPEC, and in the rat immortalized CP cell line, Z310. These observations were reinforced by immunocytochemistry staining of PRL in CPEC and Z310 cell cytoplasm. A 63-kDa immunoreactive PRL protein was detected by Western blot in CP protein extracts as well as in culture medium incubated with rat pituitary and samples of rat cerebrospinal fluid and serum. Positive immunocytochemistry staining of PRLR was present throughout the CPEC cytoplasm and in the apical and basal membrane of these cells. Altogether, our evidences suggest that CP is an alternative source of PRL to the brain, which might impact neurogenesis of olfactory neurons at the subventricular zone, given its proximity to the CP.
Collapse
Affiliation(s)
- Ana R Costa-Brito
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Telma Quintela
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Isabel Gonçalves
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Ana C Duarte
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Ana R Costa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Fernando A Arosa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - José E Cavaco
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Manuel C Lemos
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Cecília R A Santos
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.
| |
Collapse
|
32
|
Zhang Z, Wei Q, Zeng Y, Jia X, Su H, Lin W, Xing N, Bai H, He Y, Wang Q. Effect of Hordei Fructus Germinatus on differential gene expression in the prolactin signaling pathway in the mammary gland of lactating rats. J Ethnopharmacol 2021; 268:113589. [PMID: 33217517 DOI: 10.1016/j.jep.2020.113589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In China, Hordei Fructus Germinatus (HFG) is the germinated and dried fruit of Hordeum vulgare L, which is commonly used in clinical Chinese medicine. Traditional Chinese Medicine (TCM) theory holds that HFG can be both medicinal and edible, which means that it is derived from food medicine. Raw HFG and roasted HFG are used to treat hypogalactia, hyperprolactinemia and indigestion. In recent years, the lactogenic and galactophygous effects of HFG have attracted increasing attention. Nevertheless, there is much confusion over the use of raw and processed HFG, and the mechanism of its lactogenic effect seems remains poorly understood. AIM OF THE STUDY This study aimed to explore the lactogenic effect of raw HFG and roasted HFG on rats with overloaded lactation and to reveal the underlying molecular mechanism. MATERIALS AND METHODS Raw and processed HFG water decoctions were given to overloaded lactation model rats at a dose of 1.7800 g kg-1·d-1, and the control group was given the same volume of water. The lactogenic effect of raw and processed HFG was evaluated by measuring daily lactation, body weight and pup body weight, serum PRL, E2, and GH contents after parturition, and the pathological characteristics of mammary tissue sections. cDNA microarrays can be used to screen diverse gene expression patterns and signaling pathways related to prolactin. The expression of relevant differentially expressed genes was verified by real-time PCR and western blotting. RESULTS In vivo experiments demonstrated that the raw HFG water decoction stimulated mammogenesis, accelerated the transformation of the lobular acinar system, resulted in denser mammary epithelial cells and thicker glandular ducts that were full of milk and facilitated the secretion of milk. Moreover, HFG increased PRL, E2, and GH levels, pup body weight, daily lactation and the body weight of lactating rats. Following gene chip identification, KEGG pathway enrichment analysis revealed genes that were highly related to prolactin in the prolactin signaling pathway and JAK-STAT signaling pathway, and the main differentially expressed genes were Jak2 (down), Stat5α (up), cyclin D1 (up), SOCS1 (up), CISH (down) and PRLR (up). Compared with the control group, RT-PCR results indicated that Jak2 and CISH were downregulated and that Stat5α, cyclin D1, SOCS1 and PRLR were upregulated. Western blot assays showed that PRLR, STAT5α and cyclin D1 levels in the mammary glands of the raw HFG water decoction group were significantly increased, which was consistent with the results of cDNA microarray screening. CONCLUSION The present study reveals that raw HFG effectively enhances lactation in rats, possibly by influencing the prolactin/JAK-STAT signaling pathway.
Collapse
Affiliation(s)
- Zidong Zhang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Qing Wei
- Guizhou University of Traditional Chinese Medicine, Guizhou, 550025, China
| | - Yuanning Zeng
- College of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Xiaozhou Jia
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Huilin Su
- College of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Wanna Lin
- College of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Na Xing
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Haodong Bai
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yanshan He
- College of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qiuhong Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, 150040, China; College of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| |
Collapse
|
33
|
Omouessi ST, Leipprandt JR, Akoume MY, Charbeneau R, Wade S, Neubig RR. Mice with an RGS-insensitive Gα i2 protein show growth hormone axis dysfunction. Mol Cell Endocrinol 2021; 521:111098. [PMID: 33278490 DOI: 10.1016/j.mce.2020.111098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 01/03/2023]
Abstract
Mice carrying an RGS-insensitive Gαi2 mutation display growth retardation early after birth. Although the growth hormone (GH)-axis is a key endocrine modulator of postnatal growth, its functional state in these mice has not been characterized. The present study was undertaken to address this issue. Results revealed that pituitary mRNA levels for GH, prolactin (PRL), somatostatin (SST), GH-releasing-hormone receptor (GHRH-R) and GH secretagogue receptor (GHS-R) were decreased in mutants compared to controls. These changes were reflected by a significant decrease in plasma levels of GH, IGF-1 and IGF-binding protein-3 (IGFBP-3). Mutants were also less responsive to GHRH and ghrelin (GhL) on GH stimulation of release from pituitary primary cell cultures. In contrast, they were more sensitive to the inhibitory effect of SST. These data provide the first evidence for an alteration of the functional state of the GH-axis in Gαi2G184S mice that likely contributes to their growth retardation.
Collapse
MESH Headings
- Animals
- Cells, Cultured
- Female
- GTP-Binding Protein alpha Subunit, Gi2/genetics
- GTP-Binding Protein alpha Subunit, Gi2/metabolism
- Ghrelin/pharmacology
- Growth Disorders/genetics
- Growth Disorders/metabolism
- Growth Hormone/blood
- Growth Hormone/genetics
- Growth Hormone/metabolism
- Growth Hormone-Releasing Hormone/blood
- Growth Hormone-Releasing Hormone/genetics
- Growth Hormone-Releasing Hormone/pharmacology
- Insulin-Like Growth Factor Binding Protein 3/blood
- Insulin-Like Growth Factor Binding Protein 3/genetics
- Insulin-Like Growth Factor I/genetics
- Insulin-Like Growth Factor I/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Mutation
- Pituitary Gland/drug effects
- Pituitary Gland/metabolism
- Prolactin/genetics
- Prolactin/metabolism
- RGS Proteins/genetics
- RGS Proteins/metabolism
- Real-Time Polymerase Chain Reaction
- Receptors, Ghrelin/metabolism
- Receptors, Neuropeptide/genetics
- Receptors, Neuropeptide/metabolism
- Receptors, Pituitary Hormone-Regulating Hormone/genetics
- Receptors, Pituitary Hormone-Regulating Hormone/metabolism
- Signal Transduction/drug effects
- Signal Transduction/genetics
- Somatostatin/genetics
- Somatostatin/metabolism
- Somatostatin/pharmacology
Collapse
Affiliation(s)
- S Thierry Omouessi
- Department of Pharmacology, University of Michigan Medical School, Michigan, USA; Department of Physiology, Faculty of Medicine, Université des Sciences de la Santé (USS) de Libreville, Libreville, Gabon.
| | - Jeffrey R Leipprandt
- Department of Pharmacology and Toxicology, Michigan State University, Michigan, USA
| | - Marie-Yvonne Akoume
- International Research Institute of Biomedical Sciences & Biotechnology-Carles Kambangoye (IRBK), Université Internationale de Libreville, Essassa, Gabon; Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital Research Center, Montréal, Quebec, Canada
| | - Raelene Charbeneau
- Department of Pharmacology, University of Michigan Medical School, Michigan, USA
| | - Susan Wade
- Department of Pharmacology, University of Michigan Medical School, Michigan, USA
| | - Richard R Neubig
- Department of Pharmacology, University of Michigan Medical School, Michigan, USA; Department of Pharmacology and Toxicology, Michigan State University, Michigan, USA
| |
Collapse
|
34
|
Cao Y, Cai X, Zhu Q, Li N. Screening and identification of potential biomarkers for obstructive sleep apnea via microarray analysis. Medicine (Baltimore) 2021; 100:e24435. [PMID: 33530245 PMCID: PMC7850694 DOI: 10.1097/md.0000000000024435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/05/2021] [Indexed: 01/05/2023] Open
Abstract
Obstructive sleep apnea (OSA) is a common chronic disease and increases the risk of cardiovascular disease, metabolic and neuropsychiatric disorders, resulting in a considerable socioeconomic burden. This study aimed to identify potential key genes influence the mechanisms and consequences of OSA.Gene expression profiles related to OSA were obtained from Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) in subcutaneous adipose tissues from OSA compared with normal tissues were screened using R software, followed by gene ontology (GO) and pathway enrichment analyses. Subsequently, a protein-protein interaction (PPI) network for these DEGs was constructed by STRING, and key hub genes were extracted from the network with plugins in Cytoscape. The hub genes were further validated in another GEO dataset and assessed by receiver operating characteristic (ROC) analysis and Pearson correlation analysis.There were 373 DEGs in OSA samples in relative to normal controls, which were mainly associated with olfactory receptor activity and olfactory transduction. Upon analyses of the PPI network, GDNF, SLC2A2, PRL, and SST were identified as key hub genes. Decreased expression of the hub genes was association with OSA occurrence, and exhibited good performance in distinguishing OSA from normal samples based on ROC analysis. Besides, the Pearson method revealed a strong correlation between hub genes, which indicates that they may act in synergy, contributing to OSA and related disorders.This bioinformatics research identified 4 hub genes, including GDNF, SLC2A2, PRL, and SST which may be new potential biomarkers for OSA and related disorders.
Collapse
Affiliation(s)
| | - Xintian Cai
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute, National Health Committee Key Laboratory of Hypertension Clinical Research, Urumqi, Xinjiang, China
| | - Qing Zhu
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute, National Health Committee Key Laboratory of Hypertension Clinical Research, Urumqi, Xinjiang, China
| | - Nanfang Li
- Xinjiang Medical University
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute, National Health Committee Key Laboratory of Hypertension Clinical Research, Urumqi, Xinjiang, China
| |
Collapse
|
35
|
O'Leary KA, Rugowski DE, Shea MP, Sullivan R, Moser AR, Schuler LA. Prolactin synergizes with canonical Wnt signals to drive development of ER+ mammary tumors via activation of the Notch pathway. Cancer Lett 2021; 503:231-239. [PMID: 33472091 DOI: 10.1016/j.canlet.2021.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/18/2020] [Accepted: 01/13/2021] [Indexed: 12/21/2022]
Abstract
Prolactin (PRL) cooperates with other factors to orchestrate mammary development and lactation, and is epidemiologically linked to higher risk for breast cancer. However, how PRL collaborates with oncogenes to foster tumorigenesis and influence breast cancer phenotype is not well understood. To understand its interactions with canonical Wnt signals, which elevate mammary stem cell activity, we crossed heterozygous NRL-PRL mice with ApcMin/+ mice and treated pubertal females with a single dose of mutagen. PRL in the context of ApcMin/+ fueled a dramatic increase in tumor incidence in nulliparous mice, compared to ApcMin/+ alone. Although carcinomas in both NRL-PRL/ApcMin/+ and ApcMin/+ females acquired a mutation in the remaining wildtype Apc allele and expressed abundant β-catenin, PRL-promoted tumors displayed higher levels of Notch-driven target genes and Notch-dependent cancer stem cell activity, compared to β-catenin-driven activity in ApcMin/+ tumors. This PRL-induced shift to dominant Notch signals was evident in preneoplastic epithelial hyperplasias at 120 days of age. In NRL-PRL/ApcMin/+ females, rapidly proliferating hyperplasias, characterized by β-catenin at cell junctions and high NOTCH1 expression, contrasted with slower growing lesions with nuclear β-catenin in ApcMin/+ females. These studies demonstrate that PRL can powerfully modulate the incidence and phenotype of mammary tumors, shedding light on mechanisms whereby PRL elevates risk of breast cancer.
Collapse
Affiliation(s)
- Kathleen A O'Leary
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Debra E Rugowski
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Michael P Shea
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA; Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Ruth Sullivan
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA; University of Wisconsin Paul P. Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, WI, USA
| | - Amy R Moser
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA; University of Wisconsin Paul P. Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, WI, USA
| | - Linda A Schuler
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA; University of Wisconsin Paul P. Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, WI, USA.
| |
Collapse
|
36
|
Harper CV, McNamara AV, Spiller DG, Charnock JC, White MRH, Davis JRE. Calcium dynamics and chromatin remodelling underlie heterogeneity in prolactin transcription. J Mol Endocrinol 2021; 66:59-69. [PMID: 33112804 PMCID: PMC7774774 DOI: 10.1530/jme-20-0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/20/2020] [Indexed: 12/01/2022]
Abstract
Pituitary cells have been reported to show spontaneous calcium oscillations and dynamic transcription cycles. To study both processes in the same living cell in real time, we used rat pituitary GH3 cells stably expressing human prolactin-luciferase or prolactin-EGFP reporter gene constructs loaded with a fluorescent calcium indicator and measured activity using single-cell time-lapse microscopy. We observed heterogeneity between clonal cells in the calcium activity and prolactin transcription in unstimulated conditions. There was a significant correlation between cells displaying spontaneous calcium spikes and cells showing spontaneous bursts in prolactin expression. Notably, cells showing no basal calcium activity showed low prolactin expression but elicited a significantly greater transcriptional response to BayK8644 compared to cells showing basal calcium activity. This suggested the presence of two subsets of cells within the population at any one time. Fluorescence-activated cell sorting was used to sort cells into two populations based on the expression level of prolactin-EGFP however, the bimodal pattern of expression was restored within 26 h. Chromatin immunoprecipitation showed that these sorted populations were distinct due to the extent of histone acetylation. We suggest that maintenance of a heterogeneous bimodal population is a fundamental characteristic of this cell type and that calcium activation and histone acetylation, at least in part, drive prolactin transcriptional competence.
Collapse
Affiliation(s)
- Claire V Harper
- Department of Biology, Edge Hill University, Ormskirk, Lancashire, UK
- Correspondence should be addressed to C V Harper:
| | - Anne V McNamara
- Systems Microscopy Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - David G Spiller
- Systems Microscopy Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jayne C Charnock
- Department of Biology, Edge Hill University, Ormskirk, Lancashire, UK
| | - Michael R H White
- Systems Microscopy Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Julian R E Davis
- Endocrine Sciences Research Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| |
Collapse
|
37
|
Manzoni F, Salvatici E, Burlina A, Andrews A, Pasquali M, Longo N. Retrospective analysis of 19 patients with 6-Pyruvoyl Tetrahydropterin Synthase Deficiency: Prolactin levels inversely correlate with growth. Mol Genet Metab 2020; 131:380-389. [PMID: 33234470 PMCID: PMC7749858 DOI: 10.1016/j.ymgme.2020.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pyruvoyl Tetrahydropterin Synthase (PTPS) Deficiency is the most common form of BH4 deficiency resulting in hyperphenylalaninemia. It can have variable clinical severity and there is limited information on the clinical presentation, natural history and effectiveness of newborn screening for this condition. METHODS Retrospective data (growth and clinical parameters, biochemical and genetic testing results, treatment) were collected from 19 patients with PTPS deficiency in different centers, to evaluate biochemical and clinical outcomes. Descriptive statistics was used for qualitative variables, while linear regression analysis was used to correlate quantitative variables. RESULTS Patients with PTPS deficiency had an increased incidence of prematurity (4/18) with an average gestational age only mildly reduced (37.8 ± 2.4 weeks) and low birth weight (-1.14 ± 0.97 SD below that predicted for gestational age). With time, weight and height approached normal. VALUES All patients were identified by newborn screening for an elevated phenylalanine level. However, phenylalanine levels were normal in two whose testing was performed at or before 24 h of age. Sapropterin dihydrochloride treatment normalized phenylalanine levels. Molecular testing identified novel variants in the PTS gene, some of which present in more than one affected family. The neurotransmitter derivatives 5-hydroxyindoleacetic acid (5HIAA) and homovanillic acid (HVA) in the CSF were decreased in most cases except in 2 families with the peripheral form of PTPS deficiency. With time, HVA and 5HIAA became abnormally low in two of these patients requiring therapy. Prolactin (whose secretion is inhibited by dopamine) levels were elevated in several patients with PTPS deficiency and inversely correlated with the z-scores for height (p < 0.01) and weight (p < 0.05). Most patients with PTPS deficiency had delayed development early in life, improving around school age with IQs mostly in the normal range, with a small decline in older individuals. From a neurological standpoint, most patients had normal brain MRI and minor EEG anomalies, although some had persistent neurological symptoms. DISCUSSION Patients with PTPS deficiency have not only an increased incidence of prematurity, but also decreased birth weight when corrected for gestational age. Hyperphenylalaninemia can be absent in the first day of life. Therapy with sapropterin dihydrochloride normalizes phenylalanine levels and neurotransmitter precursors can improve CSF neurotransmitter metabolites levels. Insufficient dopaminergic stimulation (as seen from elevated prolactin) might result in decreased height in patients with PTPS deficiency. Despite early delays in development, many patients can achieve independence in adult life, with usually normal neuroimaging and EEG.
Collapse
Affiliation(s)
- Francesca Manzoni
- Division of Medical Genetics/Pediatrics, University of Utah, Salt Lake City, UT, USA; Clinical Department of Neuropsychiatry, San Paolo Hospital, University of Milan, Milan, Italy; Division of Inherited Metabolic Diseases, Department of Diagnostic Services, University Hospital, Padua, Italy
| | - Elisabetta Salvatici
- Clinical Department of Pediatrics, San Paolo Hospital, University of Milan, Milan, Italy
| | - Alberto Burlina
- Division of Inherited Metabolic Diseases, Department of Diagnostic Services, University Hospital, Padua, Italy
| | - Ashley Andrews
- Division of Medical Genetics/Pediatrics, University of Utah, Salt Lake City, UT, USA
| | - Marzia Pasquali
- Division of Medical Genetics/Pediatrics, University of Utah, Salt Lake City, UT, USA; ARUP Laboratories, Salt Lake City, UT, USA; Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Nicola Longo
- Division of Medical Genetics/Pediatrics, University of Utah, Salt Lake City, UT, USA; ARUP Laboratories, Salt Lake City, UT, USA; Department of Pathology, University of Utah, Salt Lake City, UT, USA..
| |
Collapse
|
38
|
Seale AP, Malintha GHT, Celino-Brady FT, Head T, Belcaid M, Yamaguchi Y, Lerner DT, Baltzegar DA, Borski RJ, Stoytcheva ZR, Breves JP. Transcriptional regulation of prolactin in a euryhaline teleost: Characterisation of gene promoters through in silico and transcriptome analyses. J Neuroendocrinol 2020; 32:e12905. [PMID: 32996203 PMCID: PMC8612711 DOI: 10.1111/jne.12905] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 07/31/2020] [Accepted: 08/26/2020] [Indexed: 12/20/2022]
Abstract
The sensitivity of prolactin (Prl) cells of the Mozambique tilapia (Oreochromis mossambicus) pituitary to variations in extracellular osmolality enables investigations into how osmoreception underlies patterns of hormone secretion. Through the actions of their main secretory products, Prl cells play a key role in supporting hydromineral balance of fishes by controlling the major osmoregulatory organs (ie, gill, intestine and kidney). The release of Prl from isolated cells of the rostral pars distalis (RPD) occurs in direct response to physiologically relevant reductions in extracellular osmolality. Although the particular signal transduction pathways that link osmotic conditions to Prl secretion have been identified, the processes that underlie hyposmotic induction of prl gene expression remain unknown. In this short review, we describe two distinct tilapia gene loci that encode Prl177 and Prl188 . From our in silico analyses of prl177 and prl188 promoter regions (approximately 1000 bp) and a transcriptome analysis of RPDs from fresh water (FW)- and seawater (SW)-acclimated tilapia, we propose a working model for how multiple transcription factors link osmoreceptive processes with adaptive patterns of prl177 and prl188 gene expression. We confirmed via RNA-sequencing and a quantitative polymerase chain reaction that multiple transcription factors emerging as predicted regulators of prl gene expression are expressed in the RPD of tilapia. In particular, gene transcripts encoding pou1f1, stat3, creb3l1, pbxip1a and stat1a were highly expressed; creb3l1, pbxip1a and stat1a were elevated in fish acclimated to SW vs FW. Combined, our in silico and transcriptome analyses set a path for resolving how adaptive patterns of Prl secretion are achieved via the integration of osmoreceptive processes with the control of prl gene transcription.
Collapse
Affiliation(s)
- Andre P. Seale
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, USA
| | | | - Fritzie T. Celino-Brady
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, USA
| | - Tony Head
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, USA
| | - Mahdi Belcaid
- Hawai’i Institute of Marine Biology, University of Hawai’i at Mānoa, Kaneohe, HI, USA
| | - Yoko Yamaguchi
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, Japan
| | - Darren T. Lerner
- University of Hawai’i Sea Grant College Program, University of Hawai’i at Mānoa, Honolulu, HI, USA
| | - David A. Baltzegar
- Genomic Sciences Laboratory, Office of Research and Innovation, North Carolina State University, Raleigh, NC, USA
| | - Russell J. Borski
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Zoia R. Stoytcheva
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, USA
| | - Jason P. Breves
- Department of Biology, Skidmore College, Saratoga Springs, NY, USA
| |
Collapse
|
39
|
Kasagi S, Miura M, Okazaki T, Mizusawa K, Takahashi A. Effects of tank color brightness on the body color, somatic growth, and endocrine systems of rainbow trout Oncorhynchus mykiss. Gen Comp Endocrinol 2020; 298:113581. [PMID: 32800773 DOI: 10.1016/j.ygcen.2020.113581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 08/03/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
We investigated the effects of tank brightness on body color, growth, and endocrine systems of rainbow trout (Oncorhynchus mykiss). Five different tank colors that produce varying levels of brightness were used, including black, dark gray [DG], light gray [LG], white, and blue. The fish were reared in these tanks for 59 days under natural photoperiod and water temperature. The body color was affected by tank brightness, such that body color brightness was correlated with tank brightness (white-housed ≥ LG-housed ≥ DG-housed ≥ blue-housed ≥ black-housed). No difference in somatic growth was observed among the fish reared in the five tanks. The mRNA levels of melanin-concentrating hormone (mch1) was higher in white-housed fish than those in the other tanks, and the mRNA levels of proopiomelanocortins (pomc-a and pomc-b) were higher in fish housed in a black tank than those in other tanks. mRNA level of somatolactin, a member of growth hormone family, was higher in black-housed fish than those in white-housed fish. The mRNA levels of mch1 and mch2 in blue-housed fish were similar to those in black-housed fish, while the mRNA levels of pomc-a and pomc-b in blue-housed fish were similar to those in white-housed fish. The current results suggest that tank color is not related to fish growth, therefore any color of conventional rearing tank can be used to grow fish. Moreover, the association between somatolactin with body color changes is suggested in addition to the role of classical MCH and melanophore stimulating hormone derived from POMC.
Collapse
Affiliation(s)
- Satoshi Kasagi
- School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan.
| | - Masayuki Miura
- Oshino Branch, Yamanashi Prefectural Fisheries Technology Center, Oshino, Yamanashi 401-0511, Japan
| | - Takumi Okazaki
- Oshino Branch, Yamanashi Prefectural Fisheries Technology Center, Oshino, Yamanashi 401-0511, Japan
| | - Kanta Mizusawa
- School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Akiyoshi Takahashi
- School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| |
Collapse
|
40
|
Le Tissier PR, Grattan DR. Growth hormone and prolactin: So much still to learn. J Neuroendocrinol 2020; 32:e12909. [PMID: 33128814 DOI: 10.1111/jne.12909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Paul R Le Tissier
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - David R Grattan
- Centre for Neuroendocrinology, University of Otago, Dunedin, New Zealand
| |
Collapse
|
41
|
Durbin HJ, Lu D, Yampara-Iquise H, Miller SP, Decker JE. Development of a genetic evaluation for hair shedding in American Angus cattle to improve thermotolerance. Genet Sel Evol 2020; 52:63. [PMID: 33087048 PMCID: PMC7579828 DOI: 10.1186/s12711-020-00584-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/09/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Heat stress and fescue toxicosis caused by ingesting tall fescue infected with the endophytic fungus Epichloë coenophiala represent two of the most prevalent stressors to beef cattle in the United States and cost the beef industry millions of dollars each year. The rate at which a beef cow sheds her winter coat early in the summer is an indicator of adaptation to heat and an economically relevant trait in temperate or subtropical parts of the world. Furthermore, research suggests that early-summer hair shedding may reflect tolerance to fescue toxicosis, since vasoconstriction induced by fescue toxicosis limits the ability of an animal to shed its winter coat. Both heat stress and fescue toxicosis reduce profitability partly via indirect maternal effects on calf weaning weight. Here, we developed parameters for routine genetic evaluation of hair shedding score in American Angus cattle, and identified genomic loci associated with variation in hair shedding score via genome-wide association analysis (GWAA). RESULTS Hair shedding score was moderately heritable (h2 = 0.34 to 0.40), with different repeatability estimates between cattle grazing versus not grazing endophyte-infected tall fescue. Our results suggest modestly negative genetic and phenotypic correlations between a dam's hair shedding score (lower score is earlier shedding) and the weaning weight of her calf, which is one metric of performance. Together, these results indicate that economic gains can be made by using hair shedding score breeding values to select for heat-tolerant cattle. GWAA identified 176 variants significant at FDR < 0.05. Functional enrichment analyses using genes that were located within 50 kb of these variants identified pathways involved in keratin formation, prolactin signalling, host-virus interaction, and other biological processes. CONCLUSIONS This work contributes to a continuing trend in the development of genetic evaluations for environmental adaptation. Our results will aid beef cattle producers in selecting more sustainable and climate-adapted cattle, as well as enable the development of similar routine genetic evaluations in other breeds.
Collapse
Affiliation(s)
| | - Duc Lu
- Angus Genetics Inc., St. Joseph, MO 64506 USA
| | | | | | | |
Collapse
|
42
|
Corso MC, Cortasa SA, Schmidt AR, Proietto S, Inserra PIF, Fernández MO, Di Giorgio N, Lux-Lantos V, Vitullo AD, Dorfman VB, Halperin J. Mammary gland-specific regulation of GNRH and GNRH-receptor gene expression is likely part of a local autoregulatory system in female vizcachas (Rodentia: Chinchillidae). Gen Comp Endocrinol 2020; 296:113518. [PMID: 32474048 DOI: 10.1016/j.ygcen.2020.113518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/06/2020] [Accepted: 05/22/2020] [Indexed: 10/24/2022]
Abstract
In addition to key mammotrophic hormones such as the pituitary prolactin (PRL) and the ovarian steroids progesterone and estradiol, there are local factors that modulate the tissue dynamics of the mammary glands during pregnancy and lactation. By immunohistochemistry and RT-PCR, we found local transcription and translation of gonadotropin-releasing hormone (GNRH), GNRH receptor (GNRHR), PRL and PRL receptor (PRLR) in mammary glands of adult vizcachas during pregnancy and lactation. Both GNRH and GNRHR showed a lag between protein expression and gene transcription throughout the gestational period: while the highest transcription levels of these genes were recorded at early-pregnancy, the epithelial immunoexpressions of both showed their maximum during lactation. RIA results corroborated the presence of GNRH in mammary glands at all the analyzed stages and confirmed the maximum amount of this peptide in the lactating group. Significant amounts of GNRH were detected in milk samples as well. Conversely, PRL and PRLR shared similar protein and gene expression profiles, all exhibiting maximum values during lactation. GNRH peptide content in mammary glands of females with sulpiride-induced hyperprolactinemia (HP) was significantly lower than that of control females (CT). Although PRL mRNA levels remained unchanged, there was a marked increase in theα-lactalbumin (LALBA) transcription in mammary glands of HP- vs CT-females. These results suggest that after targeting mammary glands, PRL stimulates the expression of milk protein genes, but also, tempers the local expression of GNRH. Mammary gland-explantssupplemented with a GNRH analogue (GN-explants) had no differences in terms of PRLR orLALBA transcription levels compared to CT-explants, so the mammary PRLR signaling would not appear to be modulated by GNRH. Yet, mRNA expression levels of both GNRH and the GNRHR-downstream factor, EGR1, were significantly higher in GN-explants compared to that of CT which would point to a GNRH-positive feedback mechanism. In summary, the local coupled expression of GNRH, GNRHR and EGR1 in the mammary gland throughout pregnancy of vizcachas, the PRL-dependent mammary GNRH secretion as well as the GNRH positive feedback on its own transcription suggest an autocrine-paracrine regulatory mechanism and propose an active role for GNRH in mammary gland tissue remodeling.
Collapse
Affiliation(s)
- María Clara Corso
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Santiago Andrés Cortasa
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Alejandro Raúl Schmidt
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Sofía Proietto
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Pablo Ignacio Felipe Inserra
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Marina Olga Fernández
- Laboratorio de Neuroendocrinología, Instituto de Biología y Medicina Experimental (IByME)-CONICET, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Noelia Di Giorgio
- Laboratorio de Neuroendocrinología, Instituto de Biología y Medicina Experimental (IByME)-CONICET, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Victoria Lux-Lantos
- Laboratorio de Neuroendocrinología, Instituto de Biología y Medicina Experimental (IByME)-CONICET, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Alfredo Daniel Vitullo
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Verónica Berta Dorfman
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Julia Halperin
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina(2); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| |
Collapse
|
43
|
Abstract
BACKGROUND The specific underlying pathogenesis of prolactinoma has not been clarified yet, to the best of our knowledge. p38 mitogen-activated protein kinase (MAPK) signaling including p38α MAPK (MAPK14), p38β (MAPK11), p38γ (MAPK12) and p38δ (MAPK13) is associated with the development and progression of several types of cancer. METHODS Immunofluorescence analysis was performed on the prolactin (PRL) and MAPK14 expressions of pituitary gland in C57BL/6 mice and human prolactinoma specimen. In the present study, the role of MAPK14 in prolactinoma was determined using estradiol-induced mice and dopamine D2 receptor knockout (DRD2-/-) mice models in C57BL/6 wild-type (WT), MAPK14-/- and DRD2-/-MAPK14+/- mice. GH3 cells were transfected with different sets of MAPK14 small interfering RNA, which to study MAPK14 and PRL expression in GH3 cells. RESULTS Immunofluorescence analysis showed that PRL and MAPK14 expression were colocalized and increased in the pituitary gland of mice and human prolactinoma specimen compared with the control specimen. It was shown that PRL and MAPK14 expression was colocalized and increased significantly in the pituitary gland of estradiol-injected prolactinoma mice compared with the control mice. Knockout of MAPK14 significantly inhibited tumor overgrowth, and PRL expression was decreased in estradiol-induced mice. Furthermore, MAPK14 knockout of DRD2-/-MAPK14+/- mice significantly reduced the overgrowth of pituitary gland and PRL production and secretion compared with DRD2-/- mice. MAPK14 knockout using siRNA inhibited PRL production in GH3 cells. CONCLUSION These results suggest that MAPK14 serves a promoting role in the formation of prolactinoma, and highlights the potential of MAPK14 as a potential therapeutic target in the treatment of prolactinoma.
Collapse
Affiliation(s)
- Qiao-Yan Ding
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China
| | - Yu Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China
| | - Li Ma
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
| | - Yong-Gang Chen
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China
| | - Jin-Hu Wu
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China
| | - Hong-Feng Zhang
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430014, P. R. China
| | - Xiong Wang
- Central lab, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China.
- Department of Pharmacy, Tongren Hospital Affiliated to Wuhan University, The Third Hospital of Wuhan, Wuhan, 430060, Hubei, China.
| |
Collapse
|
44
|
Li C, Xie W, Rosenblum JS, Zhou J, Guo J, Miao Y, Shen Y, Wang H, Gong L, Li M, Zhao S, Cheng S, Zhu H, Jiang T, Ling S, Wang F, Zhang H, Zhang M, Qu Y, Zhang Q, Li G, Wang J, Ma J, Zhuang Z, Zhang Y. Somatic SF3B1 hotspot mutation in prolactinomas. Nat Commun 2020; 11:2506. [PMID: 32427851 PMCID: PMC7237453 DOI: 10.1038/s41467-020-16052-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/07/2020] [Indexed: 11/09/2022] Open
Abstract
The genetic basis and corresponding clinical relevance of prolactinomas remain poorly understood. Here, we perform whole genome sequencing (WGS) on 21 patients with prolactinomas to detect somatic mutations and then validate the mutations with digital polymerase chain reaction (PCR) analysis of tissue samples from 227 prolactinomas. We identify the same hotspot somatic mutation in splicing factor 3 subunit B1 (SF3B1R625H) in 19.8% of prolactinomas. These patients with mutant prolactinomas display higher prolactin (PRL) levels (p = 0.02) and shorter progression-free survival (PFS) (p = 0.02) compared to patients without the mutation. Moreover, we identify that the SF3B1R625H mutation causes aberrant splicing of estrogen related receptor gamma (ESRRG), which results in stronger binding of pituitary-specific positive transcription factor 1 (Pit-1), leading to excessive PRL secretion. Thus our study validates an important mutation and elucidates a potential mechanism underlying the pathogenesis of prolactinomas that may lead to the development of targeted therapeutics.
Collapse
Affiliation(s)
- Chuzhong Li
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Brain Tumor Center, Beijing Institute for Brain Disorders, Beijing, 100070, China
| | - Weiyan Xie
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Jared S Rosenblum
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jianyu Zhou
- Bioinformatics Division, Department of Computer Science and Technology, BNRIST, Tsinghua University, Beijing, 100084, China
| | - Jing Guo
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Yazhou Miao
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Yutao Shen
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Hongyun Wang
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Lei Gong
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Mingxuan Li
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Sida Zhao
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Sen Cheng
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Haibo Zhu
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Tao Jiang
- Bioinformatics Division, Department of Computer Science and Technology, BNRIST, Tsinghua University, Beijing, 100084, China
- Department of Computer Science and Engineering, University of California, Riverside, CA, 92521, USA
| | - Shiying Ling
- Department of Neurosurgery, The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Fei Wang
- Department of Neurosurgery, The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Hongwei Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Mingshan Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Yanming Qu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Qi Zhang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Guilin Li
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Junmei Wang
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Jun Ma
- Department of Neuroimaging, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Zhengping Zhuang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Yazhuo Zhang
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China.
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China.
- Brain Tumor Center, Beijing Institute for Brain Disorders, Beijing, 100070, China.
| |
Collapse
|
45
|
Peel MT, Ho Y, Liebhaber SA. The Transcription Factor NR4A2 Plays an Essential Role in Driving Prolactin Expression in Female Pituitary Lactotropes. Endocrinology 2020; 161:5809733. [PMID: 32188976 PMCID: PMC7195901 DOI: 10.1210/endocr/bqaa046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/13/2020] [Indexed: 12/11/2022]
Abstract
Differentiation of the hormone-producing cells of the pituitary represents an informative model of cell fate determination. The generation and maintenance of 2 pituitary lineages, the growth hormone (GH)- producing somatotropes and the prolactin (PRL)- producing lactotropes, are dependent on the pituitary-specific transcription factor, POU1F1. While POU1F1 is expressed in both cell types, and plays a role in activation of both the Gh and Prl genes, expression of Gh and Prl is restricted to somatotropes and lactotropes, respectively. These observations imply the existence of additional factors that contribute to the somatotrope and lactotrope identities and their hormone expressions. Prior transcriptome analysis of primary somatotropes and lactotropes isolated from the mouse pituitary identified enrichment of a transcription factor, Nr4a2, in the lactotropes. Nr4a2 was shown in a cell culture model to bind the Prl promoter at a position adjacent to Pou1f1 and to synergize with Pou1f1 in driving Prl transcription. Here we demonstrate in vivo the role of Nr4a2 as an enhancer of Prl expression by conditional gene inactivation of the Nr4a2 gene in mouse lactotropes. We demonstrate that nuclear orphan receptor transcription factor (NR4A2) binding at the Prl promoter is dependent on actions of POU1F1; while POU1F1 is essential to loading polymerase (Pol) II on the Prl promoter, Nr4a2 plays a role in enhancing Pol II release into the Prl gene body. These studies establish an in vivo role of Nr4a2 in enhancing Prl expression in mouse lactotropes, explore its mechanism of action, and establish a system for further study of the lactotrope lineage in the pituitary.
Collapse
MESH Headings
- Animals
- Cells, Cultured
- Female
- Gene Expression Regulation
- Lactotrophs/cytology
- Lactotrophs/metabolism
- Mice, Inbred Strains
- Mice, Knockout
- Mice, Transgenic
- Microscopy, Fluorescence
- Nuclear Receptor Subfamily 4, Group A, Member 2/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 2/metabolism
- Pituitary Gland/cytology
- Pituitary Gland/metabolism
- Prolactin/genetics
- Prolactin/metabolism
- Promoter Regions, Genetic/genetics
- Protein Binding
- Transcription Factor Pit-1/genetics
- Transcription Factor Pit-1/metabolism
Collapse
Affiliation(s)
- Michael T Peel
- Department of Genetics, University of Pennsylvania, Philadelphia, PA
| | - Yugong Ho
- Department of Genetics, University of Pennsylvania, Philadelphia, PA
- Correspondence: Yugong Ho, Department of Genetics, Clinical Research Building, 415 Curie Blvd, Philadelphia, PA, 19104. E-mail:
| | - Stephen A Liebhaber
- Department of Genetics, University of Pennsylvania, Philadelphia, PA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| |
Collapse
|
46
|
Tufa DM, Shank T, Yingst AM, Trahan GD, Shim S, Lake J, Woods R, Jones K, Verneris MR. Prolactin Acts on Myeloid Progenitors to Modulate SMAD7 Expression and Enhance Hematopoietic Stem Cell Differentiation into the NK Cell Lineage. Sci Rep 2020; 10:6335. [PMID: 32286456 PMCID: PMC7156717 DOI: 10.1038/s41598-020-63346-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/18/2020] [Indexed: 12/22/2022] Open
Abstract
Numerous cell types modulate hematopoiesis through soluble and membrane bound molecules. Whether developing hematopoietic progenitors of a particular lineage modulate the differentiation of other hematopoietic lineages is largely unknown. Here we aimed to investigate the influence of myeloid progenitors on CD34+ cell differentiation into CD56+ innate lymphocytes. Sorted CD34+ cells cultured in the presence of stem cell factor (SCF) and FMS-like tyrosine kinase 3 ligand (FLT3L) give rise to numerous cell types, including progenitors that expressed the prolactin receptor (PRLR). These CD34+PRLR+ myeloid-lineage progenitors were derived from granulocyte monocyte precursors (GMPs) and could develop into granulocytes in the presence of granulocyte-macrophage colony-stimulating factor (GM-CSF) in vitro. Moreover, CD34+PRLR+ myeloid progenitors lacked lymphoid developmental potential, but when stimulated with prolactin (PRL) they increased the differentiation of other CD34+ cell populations into the NK lineage in a non-contact dependent manner. Both mRNA and protein analyses show that PRL increased mothers against decapentaplegic homolog 7 (SMAD7) in CD34+PRLR+ myeloid cells, which reduced the production of transforming growth factor beta 1 (TGF-β1), a cytokine known to inhibit CD56+ cell development. Thus, we uncover an axis whereby CD34+PRLR+ GMPs inhibit CD56+ lineage development through TGF-β1 production and PRL stimulation leads to SMAD7 activation, repression of TGF-β1, resulting in CD56+ cell development.
Collapse
Affiliation(s)
- Dejene M Tufa
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Tyler Shank
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Ashley M Yingst
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - George Devon Trahan
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Seonhui Shim
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Jessica Lake
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Renee Woods
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Kenneth Jones
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA
| | - Michael R Verneris
- University of Colorado and Children's Hospital of Colorado, Department of Pediatrics, Center for Cancer and Blood Disorders. Research Complex 1, North Tower, 12800 E. 19th Ave., Mail Stop 8302, Room P18-4108, Aurora, CO, 80045, USA.
| |
Collapse
|
47
|
Tsvetkov IS, Kosyreva AM, Mkhitarov VA, Postovalova EA, Khochanskiy DN, Makarova OV, Bredova OY, Ostrov VF. Morphological and Biochemical Characteristics of Prostate Hyperplasia during Sulpiride Treatment. Bull Exp Biol Med 2020; 168:533-537. [PMID: 32152847 DOI: 10.1007/s10517-020-04748-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Indexed: 11/26/2022]
Abstract
We studied morphological changes in the prostate ventral lobe, proliferative activity of the epithelium in prostate acini, and the levels of prolactin and prostate-specific antigen in the blood serum of Sprague-Dawley rats after repeated injections of sulpiride in a dose of 40 mg/ kg over 30 and 60 days and in 10 and 30 days after withdrawal. Morphological and morphometrical analysis of hyperplastic changes in the prostate ventral lobe was performed. Ki-67+ proliferating epithelial cells in the acini were counted. The dynamics of serum concentrations of prolactin and prostate-specific antigen was evaluated by ELISA. Morphological and morphometrical analysis and evaluation of the content of Ki-67+ cells demonstrated epithelium hyperplasia in the prostate ventral lobe after sulpiride treatment for 30 or 60 days and in 10 days after withdrawal, but serum level of prostate-specific antigen did not differ from the control. After 60-day sulpiride treatment and in 30 days after withdrawal, pronounced hyperplastic changes of prostate and elevated concentrations of prostate-specific antigen (but not prolactin) were observed. Thus, administration of sulpiride (40 mg/kg) to Sprague-Dawley rats for 60 days allows, by morphological criteria and serum level of prostate-specific antigen, to model stable hyperplastic changes in the prostate corresponding to benign prostatic hyperplasia in humans.
Collapse
Affiliation(s)
- I S Tsvetkov
- Research Institute of Human Morphology, Moscow, Russia.
| | - A M Kosyreva
- Research Institute of Human Morphology, Moscow, Russia
| | - V A Mkhitarov
- Research Institute of Human Morphology, Moscow, Russia
| | | | | | - O V Makarova
- Research Institute of Human Morphology, Moscow, Russia
| | - O Y Bredova
- Research Institute of Human Morphology, Moscow, Russia
| | - V F Ostrov
- Research Institute of Human Morphology, Moscow, Russia
| |
Collapse
|
48
|
Jiao P, Yuan Y, Zhang M, Sun Y, Wei C, Xie X, Zhang Y, Wang S, Chen Z, Wang X. PRL/microRNA-183/IRS1 Pathway Regulates Milk Fat Metabolism in Cow Mammary Epithelial Cells. Genes (Basel) 2020; 11:E196. [PMID: 32069836 PMCID: PMC7073568 DOI: 10.3390/genes11020196] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
The aim of the study was to understand the internal relationship between milk quality and lipid metabolism in cow mammary glands. A serial of studies was conducted to assess the molecular mechanism of PRL/microRNA-183/IRS1 (Insulin receptor substrate) pathway, which regulates milk fat metabolism in dairy cows. microRNA-183 (miR-183) was overexpressed and inhibited in cow mammary epithelial cells (CMECs), and its function was detected. The function of miR-183 in inhibiting milk fat metabolism was clarified by triglycerides (TAG), cholesterol and marker genes. There is a CpG island in the 5'-flanking promoter area of miR-183, which may inhibit the expression of miR-183 after methylation. Our results showed that prolactin (PRL) inhibited the expression of miR-183 by methylating the 5' terminal CpG island of miR-183. The upstream regulation of PRL on miR-183 was demonstrated, and construction of the lipid metabolism regulation network of microRNA-183 and target gene IRS1 was performed. These results reveal the molecular mechanism of PRL/miR-183/IRS1 pathway regulating milk fat metabolism in dairy cows, thus providing an experimental basis for the improvement of milk quality.
Collapse
Affiliation(s)
- Peixin Jiao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Yuan Yuan
- School of Nursing, Yangzhou University, Yangzhou 225009, China;
| | - Meimei Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Youran Sun
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Chuanzi Wei
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Xiaolai Xie
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Yonggen Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Y.S.); (C.W.); (X.X.); (Y.Z.)
| | - Sutian Wang
- State Key Laboratory of Livestock and Poultry Breeding, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Zhi Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
| | - Xiaolong Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
| |
Collapse
|
49
|
Framnes-DeBoer SN, Bakke E, Yalamanchili S, Peterson H, Sandoval DA, Seeley RJ, Arble DM. Bromocriptine improves glucose tolerance independent of circadian timing, prolactin, or the melanocortin-4 receptor. Am J Physiol Endocrinol Metab 2020; 318:E62-E71. [PMID: 31794265 PMCID: PMC6985791 DOI: 10.1152/ajpendo.00325.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bromocriptine, a dopamine D2 receptor agonist originally used for the treatment of hyperprolactinemia, is largely successful in reducing hyperglycemia and improving glucose tolerance in type 2 diabetics. However, the mechanism behind bromocriptine's effect on glucose intolerance is unclear. Here, we tested three hypotheses, that bromocriptine may exert its effects on glucose metabolism by 1) decreasing prolactin secretion, 2) indirectly increasing activity of key melanocortin receptors in the central nervous system, or 3) improving/restoring circadian rhythms. Using a diet-induced obese (DIO) mouse model, we established that a 2-wk treatment of bromocriptine is robustly effective at improving glucose tolerance. We then demonstrated that bromocriptine is effective at improving the glucose tolerance of both DIO prolactin-deficient and melanocortin-4 receptor (MC4R)-deficient mice, pointing to bromocriptine's ability to affect glucose tolerance independently of prolactin or MC4R signaling. Finally, we tested bromocriptine's dependence on the circadian system by testing its effectiveness in environmental (e.g., repeated shifts to the light-dark cycle) and genetic (e.g., the Clock mutant mouse) models of circadian disruption. In both models of circadian disruption, bromocriptine was effective at improving glucose tolerance, indicating that a functional or well-aligned endogenous clock is not necessary for bromocriptine's effects on glucose metabolism. Taken together, these results do not support the role of prolactin, MC4R, or the circadian clock as integral to bromocriptine's underlying mechanism. Instead, we find that bromocriptine is a robust diabetic treatment and resilient to genetically induced obesity, diabetes, and circadian disruption.
Collapse
Affiliation(s)
| | - Ellen Bakke
- Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin
| | | | - Hannah Peterson
- Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin
| | | | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, Michigan
| | - Deanna M Arble
- Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin
| |
Collapse
|
50
|
Alarcón H, Bonzon-Kulichenko E, Peinado R, Lim F, Vázquez J, Rodríguez A. Generation of a lentiviral vector system to efficiently express bioactive recombinant human prolactin hormones. Mol Cell Endocrinol 2020; 499:110605. [PMID: 31580897 DOI: 10.1016/j.mce.2019.110605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 10/25/2022]
Abstract
The contribution of the pleiotropic hormone Prolactin (PRL) to several physiological and pathological processes is still unknown. To clarify the role of PRL in these processes during the last decade, different human PRL antagonists have been produced to either partially or fully block the wild type hormone activity. In this work, we have cloned these wild type and antagonist sequences in lentivectors (LV) to express them as recombinant self-processing polypeptides by employing a P2A sequence (hPRL-P2A-GFP). We show that these LVs can efficiently transduce and express the hPRL proteins in different cell types and that the P2A sequence does not affect their activities. Additionally, we have tested their activities in paracrine and autocrine cell culture experiments. Our results demonstrate that these recombinant hPRL-P2A proteins are bioactive in both paracrine and autocrine modes, highlighting the potential usefulness of these hPRL-containing LVs for determining the contribution of hPRL to different biological processes.
Collapse
Affiliation(s)
- Hernán Alarcón
- Department of Molecular Biology, Autonomous University of Madrid, Madrid, 28049, Spain
| | - Elena Bonzon-Kulichenko
- Laboratory of Cardiovascular Proteomics, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, 28029, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid, 28029, Spain
| | - Rocío Peinado
- Department of Molecular Biology, Autonomous University of Madrid, Madrid, 28049, Spain
| | - Filip Lim
- Department of Molecular Biology, Autonomous University of Madrid, Madrid, 28049, Spain
| | - Jesús Vázquez
- Laboratory of Cardiovascular Proteomics, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, 28029, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid, 28029, Spain
| | - Antonio Rodríguez
- Department of Molecular Biology, Autonomous University of Madrid, Madrid, 28049, Spain.
| |
Collapse
|