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Tomizawa SI, Kuroha K, Ono M, Nakajima K, Ohbo K. A behind-the-scenes role of BDNF in the survival and differentiation of spermatogonia. Asian J Androl 2024:00129336-990000000-00225. [PMID: 39177410 DOI: 10.4103/aja202457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 05/17/2024] [Indexed: 08/24/2024] Open
Abstract
Mouse spermatogenesis entails the maintenance and self-renewal of spermatogonial stem cells (SSCs), which require a complex web-like signaling network transduced by various cytokines. Although brain-derived neurotrophic factor (BDNF) is expressed in Sertoli cells in the testis, and its receptor tropomyosin receptor kinase B (TrkB) is expressed in the spermatogonial population containing SSCs, potential functions of BDNF for spermatogenesis have not been uncovered. Here, we generate BDNF conditional knockout mice and find that BDNF is dispensable for in vivo spermatogenesis and fertility. However, in vitro, we reveal that BDNF-deficient germline stem cells (GSCs) exhibit growth potential not only in the absence of glial cell line-derived neurotrophic factor (GDNF), a master regulator for GSC proliferation, but also in the absence of other factors, including epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), and insulin. GSCs grown without these factors are prone to differentiation, yet they maintain expression of promyelocytic leukemia zinc finger (Plzf), an undifferentiated spermatogonial marker. Inhibition of phosphoinositide 3-kinase (PI3K), mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK), and Src pathways all interfere with the growth of BDNF-deficient GSCs. Thus, our findings suggest a role for BDNF in maintaining the undifferentiated state of spermatogonia, particularly in situations where there is a shortage of growth factors.
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Affiliation(s)
- Shin-Ichi Tomizawa
- Department of Histology and Cell Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
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2
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Metallinou C, Staneloudi C, Nikolettos K, Asimakopoulos B. NGF, EPO, and IGF-1 in the Male Reproductive System. J Clin Med 2024; 13:2918. [PMID: 38792459 PMCID: PMC11122040 DOI: 10.3390/jcm13102918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/09/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Several studies have demonstrated interesting results considering the implication of three growth factors (GFs), namely nerve growth factor (NGF), erythropoietin (EPO), and the insulin-like growth factor-I (IGF-1) in the physiology of male reproductive functions. This review provides insights into the effects of NGF, EPO, and IGF-1 on the male reproductive system, emphasizing mainly their effects on sperm motility and vitality. In the male reproductive system, the expression pattern of the NGF system varies according to the species and testicular development, playing a crucial role in morphogenesis and spermatogenesis. In humans, it seems that NGF positively affects sperm motility parameters and NGF supplementation in cryopreservation media improves post-thaw sperm motility. In animals, EPO is found in various male reproductive tissues, and in humans, the protein is present in seminal plasma and testicular germ cells. EPO receptors have been discovered in the plasma membrane of human spermatozoa, suggesting potential roles in sperm motility and vitality. In humans, IGF-1 is expressed mainly in Sertoli cells and is present in seminal plasma, contributing to cell development and the maturation of spermatozoa. IGF-1 seems to modulate sperm motility, and treatment with IGF-1 has a positive effect on sperm motility and vitality. Furthermore, lower levels of NGF or IGF-1 in seminal plasma are associated with infertility. Understanding the mechanisms of actions of these GFs in the male reproductive system may improve the outcome of sperm processing techniques.
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Affiliation(s)
- Chryssa Metallinou
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, Democritus University of Thrace, 69100 Alexandroupolis, Greece; (C.M.); (K.N.)
| | - Chrysovalanto Staneloudi
- Laboratory of Exercise Physiology and Biochemistry, Department of Physical Education and Sport Science at Serres, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Konstantinos Nikolettos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, Democritus University of Thrace, 69100 Alexandroupolis, Greece; (C.M.); (K.N.)
| | - Byron Asimakopoulos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, Democritus University of Thrace, 69100 Alexandroupolis, Greece; (C.M.); (K.N.)
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Daskalova E, Pencheva M, Denev P. Black Chokeberry ( Aronia melanocarpa) Juice Supplementation Improves Oxidative Stress and Aging Markers in Testis of Aged Rats. Curr Issues Mol Biol 2024; 46:4452-4470. [PMID: 38785538 PMCID: PMC11119763 DOI: 10.3390/cimb46050270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Spermatogenesis is a process that continues until the end of an individual's life, although with reduced activity with advancing age. Inflammation, oxidation, and apoptosis are events considered as predictors of pathogenesis and the development of age-related diseases observed in aged testes. The use of natural compounds with antioxidant and anti-inflammatory properties has a beneficial effect on the inflammatory and oxidative status of the aged testis. The aim of this study was to determine the effect of supplementation with antioxidant-rich black chokeberry (Aronia melanocarpa) juice on several markers of oxidative stress and aging in rat testis. In total, 24 male Wistar rats were divided into three experimental groups: young controls aged 2 months, old controls aged 27 months, and 27-month-old rats supplemented with black chokeberry juice at a dose of 10 mL/kg for 3 months. A. melanocarpa juice supplementation led to reduced oxidative stress, manifested by increased immunoexpression of nNOS, eNOS, and MAS1 in the seminiferous tubules and in the Leydig cells. The morphometrically determined tubule structure data showed no significant differences between the three groups. However, the intensity of the immunoreaction for TRK-C and NT3 in Leydig cells was demonstrably higher in the supplemented old animals compared with the old controls. There was a significantly higher number of blood vessels around the seminiferous tubules in the supplemented animals compared to the old controls. These data indicate that supplementation with A. melanocarpa juice slows down aging processes in the testis and preserves the functional activity of Leydig cells.
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Affiliation(s)
- Elena Daskalova
- Department of Anatomy, Histology and Embryology, Medical Faculty, Medical University-Plovdiv, 4000 Plovdiv, Bulgaria;
| | - Mina Pencheva
- Department of Medical Physics and Biophysics, Faculty of Pharmacy, Medical University-Plovdiv, 4000 Plovdiv, Bulgaria;
| | - Petko Denev
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria
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Stabile AM, Pistilli A, Moretti E, Bartolini D, Ruggirello M, Rende M, Castellini C, Mattioli S, Ponchia R, Tripodi SA, Collodel G. A Possible Role for Nerve Growth Factor and Its Receptors in Human Sperm Pathology. Biomedicines 2023; 11:3345. [PMID: 38137566 PMCID: PMC10742157 DOI: 10.3390/biomedicines11123345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Nerve growth factor (NGF) signalling affects spermatogenesis and mature sperm traits. In this paper, we aimed to evaluate the distribution and the role of NGF and its receptors (p75NTR and TrKA) on the reproductive apparatus (testis and epididymis) and sperm of fertile men (F) and men with different pathologies, namely varicocele (V) and urogenital infections (UGIs). We collected semen samples from 21 individuals (31-40 years old) subdivided as follows: V (n = 7), UGIs (n = 7), and F (n = 7). We submitted the semen samples to bacteriological analysis, leucocyte identification, and analysis of sperm parameters (concentration, motility, morphology, and viability). We determined the seminal plasma levels of NGF, interleukin 1β (IL-1β), and F2-isoprostanes (F2-IsoPs), and the gene and protein expression of NGF receptors on sperm. We also used immunofluorescence to examine NGF receptors on ejaculated sperm, testis, and epididymis. As expected, fertile men showed better sperm parameters as well as lower levels of NGF, F2-IsoPs, and IL-1β compared with men with infertility. Notably, in normal sperm, p75NTR and TrKA were localised throughout the entire tail. TrKA was also found in the post-acrosomal sheath. This localisation appeared different in patients with infertility: in particular, there was a strong p75NTR signal in the midpiece and the cytoplasmic residue or coiled tails of altered ejaculated sperm. In line with these findings, NGF receptors were intensely expressed in the epididymis and interstitial tissue of the testis. These data suggest the distinctive involvement of NGF and its receptors in the physiology of sperm from fertile men and men with infertility, indicating a possible role for new targeted treatment strategies.
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Affiliation(s)
- Anna Maria Stabile
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy; (A.M.S.); (A.P.); (M.R.); (M.R.)
| | - Alessandra Pistilli
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy; (A.M.S.); (A.P.); (M.R.); (M.R.)
| | - Elena Moretti
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy;
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, Section of Biochemistry, University of Perugia, 06132 Perugia, Italy;
| | - Mariangela Ruggirello
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy; (A.M.S.); (A.P.); (M.R.); (M.R.)
| | - Mario Rende
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy; (A.M.S.); (A.P.); (M.R.); (M.R.)
| | - Cesare Castellini
- Department of Agricultural, Environmental and Food Science, University of Perugia, 06100 Perugia, Italy; (C.C.); (S.M.)
| | - Simona Mattioli
- Department of Agricultural, Environmental and Food Science, University of Perugia, 06100 Perugia, Italy; (C.C.); (S.M.)
| | - Rosetta Ponchia
- Unit of Medically Assisted Reproduction, Siena University Hospital, 53100 Siena, Italy;
| | - Sergio Antonio Tripodi
- Department of Pathology Unit, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy;
| | - Giulia Collodel
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy;
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NGF and Its Role in Immunoendocrine Communication during Metabolic Syndrome. Int J Mol Sci 2023; 24:ijms24031957. [PMID: 36768281 PMCID: PMC9916855 DOI: 10.3390/ijms24031957] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 01/20/2023] Open
Abstract
Nerve growth factor (NGF) was the first neurotrophin described. This neurotrophin contributes to organogenesis by promoting sensory innervation and angiogenesis in the endocrine and immune systems. Neuronal and non-neuronal cells produce and secrete NGF, and several cell types throughout the body express the high-affinity neurotrophin receptor TrkA and the low-affinity receptor p75NTR. NGF is essential for glucose-stimulated insulin secretion and the complete development of pancreatic islets. Plus, this factor is involved in regulating lipolysis and thermogenesis in adipose tissue. Immune cells produce and respond to NGF, modulating their inflammatory phenotype and the secretion of cytokines, contributing to insulin resistance and metabolic homeostasis. This neurotrophin regulates the synthesis of gonadal steroid hormones, which ultimately participate in the metabolic homeostasis of other tissues. Therefore, we propose that this neurotrophin's imbalance in concentrations and signaling during metabolic syndrome contribute to its pathophysiology. In the present work, we describe the multiple roles of NGF in immunoendocrine organs that are important in metabolic homeostasis and related to the pathophysiology of metabolic syndrome.
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Tan X, Zhao L, Tang Y. The Function of BDNF and Its Receptor in the Male Genitourinary System and Its Potential Clinical Application. Curr Issues Mol Biol 2022; 45:110-121. [PMID: 36661494 PMCID: PMC9856797 DOI: 10.3390/cimb45010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/04/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Background: Brain-derived neurotrophic factor (BDNF), as a member of the nerve growth factor family, has been mentioned more and more frequently in recent literature reports. Among them, content about the male genitourinary system is also increasing. Objective and Rationale: BDNF plays an important role in the male genitourinary system. At the same time, the literature in this field is constantly increasing. Therefore, we systematically summarized the literature in order to more intuitively show the function of BDNF and its receptor in the male genitourinary system and its potential clinical application. Search Methods: An electronic search of, e.g., PubMed, scholar.google and Scopus, for articles relating to BDNF and its receptor in the male genitourinary system. Outcomes: In the male genitourinary system, BDNF and its receptors TrkB and p75 participate in a series of normal physiological activities, such as the maturation and morphogenesis of testes and epididymis and maintenance of isolated sperm motility. Similarly, an imbalance of the circulating concentration of BDNF also mediates the pathophysiological process of many diseases, such as prostate cancer, benign prostatic hyperplasia, male infertility, diabetes erectile dysfunction, penile sclerosis, and bladder fibrosis. As a consequence, we conclude that BDNF and its receptor are key regulatory proteins in the male genitourinary system, which can be used as potential therapeutic targets and markers for disease diagnosis.
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Affiliation(s)
- Xiaoli Tan
- Department of Urology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
| | - Liangyu Zhao
- Department of Urology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
| | - Yuxin Tang
- Department of Urology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 510275, China
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Yuan L, Wang H, Yang H, Chen S, Yang D, Zhang Y. Expression of the NSE,SP,NFH and DβH in normal and cryptorchid testes of Bactrian camel. Anim Reprod 2022; 19:e20210087. [PMID: 35154438 PMCID: PMC8827324 DOI: 10.1590/1984-3143-ar2021-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022] Open
Abstract
Neuroendocrine substances play essential roles in regulating the normal physiological functions of testicles. The purpose of this study is to explore the localization and effects of four neuroendocrine markers (NSE, SP, NFH and DβH) in normal and cryptorchid testes of Bactrian camels using western blotting, transmission electron microscopy, immunohistochemistry, and immunofluorescence methods. The results showed that cryptorchidism caused a reduction in layers of spermatogenic epithelium and decreased glycogen positivity in the basement membrane. The ultrastructure revealed that macrophages were always found around the Leydig cells, crowded with swelling mitochondria in cryptorchidism. Expression of NSE in the Leydig cells of cryptorchidism was significantly weakened compared to that in the normal group(p<0.01). We found that SP was always distributed along the nerve fibers in normal testes and was expressed in the Leydig cells of cryptorchidism. However, expression of NFH in the cryptorchidic tissue was strongly positive in the spermatogenic epithelium, with limited expression in Leydig cells and no expression in peritubular myoid cells. Therefore, the expression of DβH in the Sertoli cells was comparatively strong in both the normal and cryptorchidism groups. NFH and DβH expression was significantly increased in the cryptorchidism group compared with the normal group (p<0.01). These findings indicated that the underdeveloped seminiferous epithelium and pathological changes in cryptorchid tissue in Bactrian camels were potentially related to a disorder in glycoprotein metabolism. Our results suggest that NSE and SP could help judge the pathological changes of cryptorchidism. The present study provides the first evidence at the protein level for the existence of NFH and DβH in Sertoli and Leydig cells in Bactrian camel cryptorchidism and provides a more in-depth understanding of neuroendocrine regulation is crucial for animal cryptorchidism.
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Affiliation(s)
| | - Hua Wang
- Gansu Agricultural University, China
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Liu ZJ, Liu YH, Huang SY, Zang ZJ. Insights into the Regulation on Proliferation and Differentiation of Stem Leydig Cells. Stem Cell Rev Rep 2021; 17:1521-1533. [PMID: 33598893 DOI: 10.1007/s12015-021-10133-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2021] [Indexed: 11/26/2022]
Abstract
Male hypogonadism is a clinical syndrome caused by testosterone deficiency. Hypogonadism can be caused by testicular disease (primary hypogonadism) or hypothalamic-pituitary dysfunction (secondary hypogonadism). The present strategy for treating hypogonadism is the administration of exogenous testosterone. But exogenous testosterone is reported to have negative side effects including adverse cardiovascular events and disruption of physiological spermatogenesis probably due to its inability to mimic the physiological circadian rhythm of testosterone secretion in vivo. In recent years, a growing number of articles demonstrated that stem Leydig cells (SLCs) can not only differentiate into functional Leydig cells (LCs) in vivo to replace chemically disrupted LCs, but also secrete testosterone in a physiological pattern. The proliferation and differentiation of SLCs are regulated by various factors. However, the mechanisms involved in regulating the development of SLCs remain to be summarized. Factors involved in the regulation of SLCs can be divided into environmental pollutants, growth factors, cytokine and hormones. Environmental pollutants such as Perfluorooctanoic acid (PFOA) and Triphenyltin (TPT) could suppress SLCs proliferation or differentiation. Growth factors including FGF1, FGF16, NGF and activin A are essential for the maintenance of SLCs self-renewal and differentiation. Interleukin 6 family could inhibit differentiation of SLCs. Among hormones, dexamethasone suppresses SLCs differentiation, while aldosterone suppresses their proliferation. The present review focuses on new progress about factors regulating SLC's proliferation and differentiation which will undoubtedly deepen our insights into SLCs and help make better clinical use of them. Different factors affect on the proliferation and differentiation of stem Leydig cells. Firstly, each rat was intraperitoneally injected EDS so as to deplete Leydig cells from the adult testis. Secondly, the CD51+ or CD90+ cells from the testis of rats are SLCs, and the p75+ cells from human adult testes are human SLCs. These SLCs in the testis start to proliferate and some of them differentiate into LCs. Thirdly, during the SLCs regeneration period, researchers could explore different function of those factors (pollutants, growth factors, cytokines and hormones) towards SLCs.
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Affiliation(s)
- Zhuo-Jie Liu
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, China
| | - Yong-Hui Liu
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, China
| | - Sheng-Yu Huang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, China
| | - Zhi-Jun Zang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, China.
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Mascherek A, Reidick MC, Gallinat J, Kühn S. Is Ejaculation Frequency in Men Related to General and Mental Health? Looking Back and Looking Forward. Front Psychol 2021; 12:693121. [PMID: 34434144 PMCID: PMC8382266 DOI: 10.3389/fpsyg.2021.693121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
Despite its relevance for human sexuality, literature on potential effects of ejaculation frequency and masturbation on general and mental health outcomes is sparse. Reasons for this knowledge gap include a general lack of interest, but also methodological challenges and still existing superstition. This paper reconciles literature from various fields to extract relevant information on how ejaculation frequency effects general and mental health outcomes. Culture-bound syndromes have been reported in countries still strictly tabooing or condemning masturbation. Masturbatory guilt describes a phenomenon in individuals experiencing a discrepancy between moral standards and own behavior with respect to masturbation. Abstinence is one aspect under study in the area of fertility treatment. Specific time frames and their respective implications on quality of sperm remain inconclusive. Limited temporal resolution capacities hamper the precise study of brain structures directly activated during ejaculation. The relation between ejaculation frequency and hormonal influences remains poorly understood. Future research that specifically addresses ejaculation frequency and potential mental and general health outcomes is needed. In contrast to extracting knowledge as a byproduct from other studies with a different focus, this enables sound study designs and could provide evidence-based results which could then be further discussed and interpreted.
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Affiliation(s)
- Anna Mascherek
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mirjam Christina Reidick
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jürgen Gallinat
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Simone Kühn
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Asimakopoulos B, Tiptiri‐Kourpeti A, Metallinou C. IGF-I and NGFβ enhance in vitro progressive motility and vitality of human spermatozoa. Reprod Med Biol 2021; 20:361-367. [PMID: 34262405 PMCID: PMC8254174 DOI: 10.1002/rmb2.12393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/05/2021] [Accepted: 05/23/2021] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Progressive motility (PM) and vitality are positively associated with fertilization ability of spermatozoa. Here, the effects of IGF-I and NGFβ on PM and vitality of human spermatozoa were investigated. METHODS Forty-three volunteers gave semen samples after 2-3 days of sexual abstinence. Each sample was processed with density gradient centrifugation and sperm washing. The pellet was divided into 3 aliquots. An aliquot containing one million of progressively motile spermatozoa was incubated for an hour (37°C) in standard culture medium (control group), and two aliquots with the same number of progressively motile spermatozoa were incubated in medium supplemented with IGF-I or NGFβ. Two concentrations of IGF-I (100 ng/ml and 1000 ng/ml) and NGFβ (0,5 ng/ml and 5 ng/ml) were tested. RESULTS Both growth factors significantly increased PM and vitality in comparison with control either at the low or the high concentration. IGF-I seemed to be more effective than NGFβ. The effects did not seem to be dose dependent with the exception of the effect of IGF-I on vitality. CONCLUSIONS The enhancement of PM and vitality of human spermatozoa by IGF-I and NGFβ opens new ways for the improvement of sperm processing. Further research is needed to determine the most effective concentrations.
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Affiliation(s)
- Byron Asimakopoulos
- Laboratory of PhysiologyFaculty of MedicineSchool of Health SciencesDemocritus University of ThraceAlexandroupolisGreece
| | - Aggeliki Tiptiri‐Kourpeti
- Laboratory of PhysiologyFaculty of MedicineSchool of Health SciencesDemocritus University of ThraceAlexandroupolisGreece
| | - Chrysa Metallinou
- Laboratory of PhysiologyFaculty of MedicineSchool of Health SciencesDemocritus University of ThraceAlexandroupolisGreece
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Perri A, Rago V, Malivindi R, Maltese L, Lofaro D, Greco EA, Tucci L, Bonofiglio R, Vergine M, La Vignera S, Chiefari E, Brunetti A, Aversa A. Overexpression of p75 NTR in Human Seminoma: A New Biomarker? Life (Basel) 2021; 11:629. [PMID: 34209730 PMCID: PMC8303822 DOI: 10.3390/life11070629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/15/2021] [Accepted: 06/24/2021] [Indexed: 01/03/2023] Open
Abstract
Several studies have demonstrated that the p75NTR low-affinity receptor of Nerve Growth Factor (NGF), is produced in abnormally large amounts in several human cancer types. However, the role of p75NTR varies substantially depending on cell context, so that a dual role of this receptor protein in tumor cell survival and invasion, as well as cell death, has been supported in recent studies. Herein we explored for the first time the expression of p75NTR in human specimens (nr = 40) from testicular germ cell tumors (TGCTs), mostly seminomas. Nuclear overexpression of p75NTR was detected by immunohistochemistry in seminoma tissue as compared to normal tissue, whereas neither NGF nor its high-affinity TrkA receptor was detected. An increased nuclear staining of phospho-JNK, belonging to the p75NTR signaling pathway and its pro-apoptotic target gene, p53, was concomitantly observed. Interestingly, our analysis revealed that decreased expression frequency of p75NTR, p-JNK and p53 was related to staging progression, thus suggesting that p75NTR may represent a specific marker for seminoma and staging in TGCTs.
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Affiliation(s)
- Anna Perri
- Kidney and Transplantation Research Center, Annunziata Hospital, 89100 Cosenza, Italy; (A.P.); (D.L.); (R.B.)
| | - Vittoria Rago
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy;
| | - Rocco Malivindi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy;
| | - Lorenza Maltese
- Department of Pathological Anatomy, “Pugliese-Ciaccio” Hospital, 88100 Catanzaro, Italy; (L.M.); (L.T.)
| | - Danilo Lofaro
- Kidney and Transplantation Research Center, Annunziata Hospital, 89100 Cosenza, Italy; (A.P.); (D.L.); (R.B.)
- deHealth Lab—DIMEG, UNICAL, Arcavacata di Rende (C.S.), 87036 Cosenza, Italy
| | - Emanuela Alessandra Greco
- Department of Health Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.A.G.); (E.C.); (A.B.)
| | - Luigi Tucci
- Department of Pathological Anatomy, “Pugliese-Ciaccio” Hospital, 88100 Catanzaro, Italy; (L.M.); (L.T.)
| | - Renzo Bonofiglio
- Kidney and Transplantation Research Center, Annunziata Hospital, 89100 Cosenza, Italy; (A.P.); (D.L.); (R.B.)
| | - Margherita Vergine
- Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (M.V.); (A.A.)
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, 95100 Catania, Italy;
| | - Eusebio Chiefari
- Department of Health Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.A.G.); (E.C.); (A.B.)
| | - Antonio Brunetti
- Department of Health Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.A.G.); (E.C.); (A.B.)
| | - Antonio Aversa
- Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (M.V.); (A.A.)
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Li L, Chen S. Screening, identification and interaction analysis of key MicroRNAs and genes in Asthenozoospermia. Int J Med Sci 2021; 18:1670-1679. [PMID: 33746583 PMCID: PMC7976570 DOI: 10.7150/ijms.54460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/04/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Asthenozoospermia, one of the most common causes of male infertility, is a complicate multifactorial pathological condition that genetic factors are involved in. However, the epigenetic signature and mechanism of asthenozoospermia still remain limited. Our study aimed to confirm the key microRNAs (miRNAs) and genes in asthenozoospermia and demonstrate the underlying epigenetic regulatory mechanisms. Methods: We screened out and pooled previous studies to extracted potential differentially expressed miRNAs (DEMs). GSE22331 and a published profile dataset were integrated to identify differentially expressed genes (DEGs). Pathway and gene ontology analysis were performed using DAVID. A protein-protein network (PPI) was constructed using STRING. The target genes of DEMs were predicted using TargetScan and the miRNA-mRNA network was built. Results: We reported 3 DEMs and 423 DEGs by pooling included dataset and published studies. Pathway analysis showed that these DEGs might participate in signaling pathways regulating pluripotency of stem cells, Wnt signaling pathway and Notch signaling pathway. 25 hub genes were identified, and the most significant gene was BDNF. We screened out the overlapped DEGs between the predicted target genes of 3 DEMs and the 423 DEGs. Finally, a potential miRNA-mRNA regulatory network was constructed. Conclusion: This study firstly pooled several published studies and a GEO dataset to determine the significance of potential miRNAs and genes, such as miR-374b, miR-193a, miR-34b, BDNF, NTRK2, HNRNPD and EFTUD2 in regulating asthenozoospermia and underscore their interactions in the pathophysiological mechanism. Our results provided theoretical basis and new clues for potential therapeutic treatment in asthenozoospermia. Validations in vivo and in vitro are required in future studies.
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Affiliation(s)
- Liman Li
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Song Chen
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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Maranesi M, Boiti C, Zerani M. Nerve Growth Factor (NGF) and Animal Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1331:277-287. [PMID: 34453306 DOI: 10.1007/978-3-030-74046-7_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Stimuli that lead to the release of gonadotropin-releasing hormone (GnRH) and pituitary gonadotropins and, consequently, ovulation in mammals fall into two broad categories. In the first, high plasma oestrogen concentrations induce the events that trigger ovulation, a characteristic of spontaneous ovulators. In the second, nerve stimuli occurring during mating reach the hypothalamus and trigger the release of GnRH and ovulation with a neuroendocrine reflex that characterizes induced ovulators.In this review, we will give an overview of the distribution of NGF and its expression in the different tissues of the male accessory sex glands, the main sites of NGF production. Next, we will highlight the role of NGF in sperm function and its potential cryopreserving role in artificial insemination techniques. Finally, we will evaluate the functions of NGF in ovulation, particularly in induced ovulators. Overall, the information obtained so far indicates that NGF is widely distributed in organs that regulate the reproductive activity, in both males and females. In spontaneous ovulators, NGF exerts mainly a luteotrophic action, while, in induced ovulators it is the main ovulation-inducing factor. A better understanding of the role of NGF in reproduction would be of great interest, since it could help finding innovative therapeutic aids to improve mammalian fertility.
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Affiliation(s)
- Margherita Maranesi
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, PG, Italy.
| | - Cristiano Boiti
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, PG, Italy
| | - Massimo Zerani
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, PG, Italy
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Chow R, Wessels JM, Foster WG. Brain-derived neurotrophic factor (BDNF) expression and function in the mammalian reproductive Tract. Hum Reprod Update 2020; 26:545-564. [PMID: 32378708 DOI: 10.1093/humupd/dmaa008] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/13/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Neurotrophins of the nerve growth factor family are soluble polypeptides that are best known for their role in nerve growth, survival and differentiation in the central nervous system. A growing body of literature shows that neurotrophins and their receptors are also expressed throughout the reproductive tract. OBJECTIVE AND RATIONALE Neurotrophins are key regulatory proteins in reproductive physiology during development and throughout adult life. Of the neurotrophins, the literature describing the expression and function of brain-derived neurotrophic factor (BDNF) and its high-affinity receptor, neurotrophin receptor kinase-2 (NTRK2), has been expanding rapidly. We therefore conducted a systematic inductive qualitative review of the literature to better define the role of the BDNF in the reproductive tract. We postulate that BDNF and NTRK2 are central regulatory proteins throughout the reproductive system. SEARCH METHODS An electronic search of Medline (PubMed) and Web of Science for articles relating to BDNF and the reproductive system was carried out between January 2018 and February 2019. OUTCOMES In the ovary, BDNF expression and levels have been linked with follicle organisation during ovarian development, follicle recruitment and growth and oocyte maturation. In the endometrium, BDNF is involved in cell proliferation and neurogenesis. In contrast, literature describing the role of BDNF in other reproductive tissues is sparse and BDNF-NTRK2 signalling in the male reproductive tract has been largely overlooked. Whilst estradiol appears to be the primary regulator of BDNF expression, we also identified reports describing binding sites for glucocorticoid and myocyte enhancer factor-2, a calcium-response element through activation of an N-methyl-D-aspartate (NMDA) receptor, and aryl hydrocarbon receptor nuclear transporter protein-4 (ARNT) response elements in promoter regions of the BDNF gene. Expression is also regulated by multiple microRNAs and post-translational processing of precursor proteins and intracellular shuttling. BDNF-NTRK2 signalling is modulated through tissue specific receptor expression of either the full-length or truncated NTRK2 receptor; however, the functional importance remains to be elucidated. Dysregulation of BDNF expression and circulating concentrations have been implicated in several reproductive disorders including premature ovarian failure, endometriosis, pre-eclampsia, intra-uterine growth restriction (IUGR) and several reproductive cancers. WIDER IMPLICATIONS We conclude that BDNF and its receptors are key regulatory proteins central to gonadal development, ovarian regulation and uterine physiology, as well as embryo and placenta development. Furthermore, dysregulation of BDNF-NTRK2 in reproductive diseases suggests their potential role as candidate clinical markers of disease and potential therapeutic targets.
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Affiliation(s)
- R Chow
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
| | - J M Wessels
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
| | - W G Foster
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
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15
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16
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Challenging human somatic testicular cell reassembly by protein kinase inhibition -setting up a functional in vitro test system. Sci Rep 2020; 10:8935. [PMID: 32488054 PMCID: PMC7265505 DOI: 10.1038/s41598-020-65924-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 05/07/2020] [Indexed: 11/20/2022] Open
Abstract
Signalling pathways and cellular interactions defining initial processes of testis morphogenesis, i.e. cord formation, are poorly understood. In vitro cell-based systems modelling cord formation can be utilised as platforms to interrogate processes of tubulogenesis. We aimed at testing our established cord formation in vitro model using adult human testicular cells as a quantitative assay that can facilitate future studies on cord morphogenesis. We challenged the responsiveness of our system with a broad-spectrum protein kinase inhibitor, K252a. Cultured testicular cells were treated with various K252a concentrations under constant exposure and compound withdrawal. To quantify cell reaggregation changes, we performed computer-assisted phase-contrast image analysis of aggregate size and number. Cell reaggregation was analysed in detail by categorisation of aggregates into size groups and accounting for changes in aggregate number per size category. We found a dose-related disturbance of testicular cell reaggregation. K252a decreased aggregate size (IC50 of 203.3 nM) and reduced the large aggregate numbers. Video recordings revealed that treatment with K252a at a concentration above IC50 interfered with aggregate coalescence into cords. Short-term exposure and compound wash-out induced irreversible decrease in large aggregates. We propose our in vitro model as a functional platform to quantitatively investigate seminiferous tubulogenesis under pharmacological impact.
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17
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Sanchez-Rodriguez A, Arias-Alvarez M, Timón P, Bautista JM, Rebollar PG, Lorenzo PL, Garcia-Garcia RM. Characterization of β-Nerve Growth Factor-TrkA system in male reproductive tract of rabbit and the relationship between β-NGF and testosterone levels with seminal quality during sexual maturation. Theriogenology 2018; 126:206-213. [PMID: 30579143 DOI: 10.1016/j.theriogenology.2018.12.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 01/18/2023]
Abstract
β-Nerve Growth Factor (β-NGF) is a neurotrophin which acts through its receptors TrkA and p75, performing important actions in male reproductive physiology and its presence in seminal plasma (SP) has been related to male fertility. The aim of the present study was to evaluate the gene expression profile and the immunolocalization of β-NGF and its high-affinity receptor TrkA in sex organs in rabbits during sexual maturation period. β-NGF concentration for both SP and blood plasma (BP) and BP testosterone levels were determined as well as the seminal parameters during such period. Ten New Zealand White x California young rabbits were trained to semen collection since 20 weeks of age and routinely done once a week with two ejaculations per session. At 22 and 37 weeks of age, semen collection was carried out three times a week and seminal parameters were evaluated. Four males were randomly assigned and slaughtered in each age (n = 8); sex organs (prostate, bulbourethral glands and epididymis) were dissected and collected to determine β-NGF and TrkA gene expression and immunolocalization. SP and BP were also taken at each semen collection session to evaluate β-NGF concentration, and testosterone levels were also assessed in BP. The highest β-NGF mRNA expression was observed in prostate compared to bulbourethral glands and epididymis. These two last tissues showed residual β-NGF mRNA expression and limited localization of the neurotrophin. The prostate epithelial cells and lumen were strongly stained with regard to the other sex organs indicating that immunolocalization of β-NGF rely mainly in the prostate. TrkA gene expression was lower but constant and differentially immunolocalized in the sex organ tissues. Finally, β-NGF concentration in SP and BP remained unchanged in accordance to age, while some seminal characteristics such as sperm concentration, percentage of live sperm and mass and progressive motility were enhanced as endowed by BP testosterone variation. β-NGF and its cognate TrkA receptor are expressed and immunolocalized in the male reproductive tract in the two ages studied, independently of the circulating levels of testosterone and β-NGF.
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Affiliation(s)
- Ana Sanchez-Rodriguez
- Department of Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Maria Arias-Alvarez
- Department of Animal Production, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Patricia Timón
- Department of Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - José M Bautista
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Pilar G Rebollar
- Department of Agrarian Production, ETSIAAB, Polytechnic University of Madrid, Madrid, Spain
| | - Pedro L Lorenzo
- Department of Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Rosa M Garcia-Garcia
- Department of Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain.
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Wu Y, Yang C, Meng F, Que F, Xiao W, Rao H, Wan Y, Taylor HS, Lu L. Nerve Growth Factor Improves the Outcome of Type 2 Diabetes-Induced Hypotestosteronemia and Erectile Dysfunction. Reprod Sci 2018; 26:386-393. [PMID: 29724155 DOI: 10.1177/1933719118773421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Hypotestosterone and erectile dysfunction (ED) occur frequently in males with type 2 diabetes. It is still clinically challenging to manage diabetes-induced ED. Here, we conducted a 2-arm randomized clinical study and in vitro cell line experiments to investigate the effects of nerve growth factor (NGF) on serum testosterone and ED in diabetic males with sensorimotor polyneuropathy and to identify its underlying mechanisms. The analyses of serum total testosterone (TT) and free testosterone (FT), and 5-item version of the International Index of Erectile Function (IIEF-5) score at baseline and after treatment show increases in TT (3.90 nmol/L, 95% confidence interval [CI]: 3.13-4.66 nmol/L vs 1.21 nmol/L [95% CI: 0.57-1.85 nmol/L]), FT (3.79 pg/mL [95% CI: 3.05-4.54 pg/mL] vs 1.27 pg/mL [95% CI: 0.85-1.70 pg/mL]), and IIEF-5 score (1.84 [95% CI: 1.21-2.47] vs 0.24 [95% CI: -0.24 to 0.73]) in the NGF treatment compared controls ( P < .005). In mouse Leydig cells, NGF significantly ameliorated the hyperglycemia-induced downregulation of steroidogenic acute regulatory protein and cytochrome P450 11A1 ( P < .05). Thus, NGF treatment effectively improves type 2 diabetes-induced hypotestosterone and ED outcome through a mechanism that includes upregulation of key enzymes in testosterone biosynthesis.
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Affiliation(s)
- Yixing Wu
- 1 Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Chuntao Yang
- 2 Department of Physiology, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fuhui Meng
- 2 Department of Physiology, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fenglian Que
- 1 Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenxia Xiao
- 1 Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Huying Rao
- 1 Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yan Wan
- 1 Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hugh S Taylor
- 3 Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Lingeng Lu
- 4 Department of Chronic Disease Epidemiology, Yale School of Public Health, School of Medicine, Yale Cancer Center, Yale University, New Haven, CT, USA
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Cacialli P, D'Angelo L, de Girolamo P, Avallone L, Lucini C, Pellegrini E, Castaldo L. Morpho-Functional Features of the Gonads of Danio rerio: the Role of Brain-Derived Neurotrophic Factor. Anat Rec (Hoboken) 2017; 301:140-147. [PMID: 29024578 DOI: 10.1002/ar.23702] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 08/16/2017] [Accepted: 08/23/2017] [Indexed: 01/07/2023]
Abstract
Zebrafish, a suitable and widely used teleost fish model in basic biomedical research, displays morphophysiological features of adult gonads that share some commonalities with those of mammalian species. In mammals, gametogenesis is regulated, among several factors, by brain-derived neurotrophic factor (BDNF). This neurotrophin has a well-established role in the developing and adult nervous system, as well as gonads development and functions in vertebrate species. We hypothesize that BDNF has a role also in the gonadal functions of zebrafish. At this purpose, we investigated BDNF and its receptors p75 and TrkB in the ovary and testis of adult zebrafish, kept under laboratory conditions. Our results display (1) the expression of BDNF mRNA and pro-BDNF protein outside of the nervous system, specifically in the ovary and testis; (2) the presence of pro-BDNF in primary oocytes and follicular layer, and p75 in follicular cells; (3) the localization of pro-BDNF in type B spermatogonia, and Sertoli cells in testis. Altogether, these data lead us to consider that BDNF is involved in the gonadal function of adult zebrafish, and mainly in the adult ovary. Anat Rec, 2017. © 2017 Wiley Periodicals, Inc. Anat Rec, 301:140-147, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Pietro Cacialli
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy.,UFR Sciences de la vie et de l'environnement, Université de Rennes 1, Campus de Beaulieu - Bâtiment 13 263 Avenue Général Leclerc - CS 74205, Rennes Cedex 35042, France
| | - Livia D'Angelo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy
| | - Paolo de Girolamo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy
| | - Luigi Avallone
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy
| | - Carla Lucini
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy
| | - Elisabeth Pellegrini
- UFR Sciences de la vie et de l'environnement, Université de Rennes 1, Campus de Beaulieu - Bâtiment 13 263 Avenue Général Leclerc - CS 74205, Rennes Cedex 35042, France
| | - Luciana Castaldo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1 Napoli, Italy
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Gao S, Li C, Xu Y, Chen S, Zhao Y, Chen L, Jiang Y, Liu Z, Fan R, Sun L, Wang F, Zhu X, Zhang J, Zhou X. Differential expression of microRNAs in TM3 Leydig cells of mice treated with brain-derived neurotrophic factor. Cell Biochem Funct 2017; 35:364-371. [DOI: 10.1002/cbf.3283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/14/2017] [Accepted: 07/07/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Shan Gao
- College of Animal Sciences; Jilin University; Jilin China
| | - Chunjin Li
- College of Animal Sciences; Jilin University; Jilin China
| | - Ying Xu
- Reproductive Medical Center; The Second Hospital of Jilin University; Changchun China
| | - Shuxiong Chen
- College of Animal Sciences; Jilin University; Jilin China
| | - Yun Zhao
- College of Animal Sciences; Jilin University; Jilin China
| | - Lu Chen
- College of Animal Sciences; Jilin University; Jilin China
| | - Yanwen Jiang
- College of Animal Sciences; Jilin University; Jilin China
| | - Zhuo Liu
- College of Animal Sciences; Jilin University; Jilin China
| | - Rong Fan
- College of Animal Sciences; Jilin University; Jilin China
| | - Liting Sun
- College of Animal Sciences; Jilin University; Jilin China
| | - Fengge Wang
- College of Animal Sciences; Jilin University; Jilin China
| | - Xiaoling Zhu
- College of Animal Sciences; Jilin University; Jilin China
| | - Jing Zhang
- College of Animal Sciences; Jilin University; Jilin China
| | - Xu Zhou
- College of Animal Sciences; Jilin University; Jilin China
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Colitti M. Distribution of BDNF and TrkB isoforms in growing antler tissues of red deer. Ann Anat 2017; 213:33-46. [PMID: 28602824 DOI: 10.1016/j.aanat.2017.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/16/2017] [Accepted: 05/16/2017] [Indexed: 11/26/2022]
Abstract
Antlers are the cranial appendages of deer that regenerate each year. This renewal provides a model to explore molecules involved in mammalian organ regeneration. The cellular distributions of the brain-derived neurotrophic factor (BDNF) and the isoforms of its cognate receptor Trk tyrosine kinase receptor (TrkB) were localized by immunohistochemistry in sections of growing red deer antler. BDNF and TrkB full length were widely expressed in the integument, perichondrium, periosteum and bone. The truncated isoform receptor was particularly evidenced in integument and vascular inner dermis, but very light reaction was observed in cartilage and bone, both at the site of endochondral and intramembranous ossification. These observations were also assessed at transcriptional level by RT-PCR analyses. The highest expression of all genes significantly occurred in chondroprogenitor cells; however the full-length TrkB receptor was down regulated in osteocartilaginous compartments, in which the truncated isoform was up regulated. The truncated isoform is a dominant-negative receptor that inhibits the full length receptor signalling, even if the truncated isoform not only has this function. This study establishes the presence of BDNF and its receptor in the different cellular compartments of growing antler. Their transcripts assessed by RT-PCR indicate a local synthesis of these molecules that may contribute to the modulation of antler growth, acting as autocrine and/or paracrine factors independently of nerve supply. Among the plethora of other molecular signals and growth factors affecting the antler growth, the local production of BDNF and its cognate receptor could be of interest in understanding their role in antler renewal and to delineate the different involvement of the receptor isoforms.
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Affiliation(s)
- M Colitti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze, 206, 33100 Udine, Italy.
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Jiang YW, Zhao Y, Chen SX, Chen L, Li CJ, Zhou X. NGF promotes mitochondrial function by activating PGC-1α in TM4 Sertoli cells. Andrologia 2017; 50. [PMID: 28470720 DOI: 10.1111/and.12837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2017] [Indexed: 11/29/2022] Open
Abstract
Nerve growth factor (NGF), which is required for the survival and differentiation of the nervous system, has been proved to play important roles in male reproductive physiology. Several studies have focused on the roles of NGF in the testes. However, no study has reported on the mechanism of paracrine and autocrine actions of NGF in Sertoli cells. This study showed that NGF stimulated mitochondrial activity and biogenesis in TM4 Sertoli cells. Moreover, our results demonstrated that peroxisome proliferator-activated receptor-gamma coactivator-1α is a possible downstream key target of the NGF signalling pathway. In a 3-nitropropionic acid cell model, NGF treatment attenuated mitochondrial activity defect and depolarisation. This NGF-triggered signalling may help in discovering new therapeutic targets for certain male infertility disorders.
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Affiliation(s)
- Y W Jiang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Y Zhao
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - S X Chen
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - L Chen
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - C J Li
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - X Zhou
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
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Waiho K, Fazhan H, Shahreza MS, Moh JHZ, Noorbaiduri S, Wong LL, Sinnasamy S, Ikhwanuddin M. Transcriptome Analysis and Differential Gene Expression on the Testis of Orange Mud Crab, Scylla olivacea, during Sexual Maturation. PLoS One 2017; 12:e0171095. [PMID: 28135340 PMCID: PMC5279790 DOI: 10.1371/journal.pone.0171095] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 01/15/2017] [Indexed: 01/04/2023] Open
Abstract
Adequate genetic information is essential for sustainable crustacean fisheries and aquaculture management. The commercially important orange mud crab, Scylla olivacea, is prevalent in Southeast Asia region and is highly sought after. Although it is a suitable aquaculture candidate, full domestication of this species is hampered by the lack of knowledge about the sexual maturation process and the molecular mechanisms behind it, especially in males. To date, data on its whole genome is yet to be reported for S. olivacea. The available transcriptome data published previously on this species focus primarily on females and the role of central nervous system in reproductive development. De novo transcriptome sequencing for the testes of S. olivacea from immature, maturing and mature stages were performed. A total of approximately 144 million high-quality reads were generated and de novo assembled into 160,569 transcripts with a total length of 142.2 Mb. Approximately 15–23% of the total assembled transcripts were annotated when compared to public protein sequence databases (i.e. UniProt database, Interpro database, Pfam database and Drosophila melanogaster protein database), and GO-categorised with GO Ontology terms. A total of 156,181 high-quality Single-Nucleotide Polymorphisms (SNPs) were mined from the transcriptome data of present study. Transcriptome comparison among the testes of different maturation stages revealed one gene (beta crystallin like gene) with the most significant differential expression—up-regulated in immature stage and down-regulated in maturing and mature stages. This was further validated by qRT-PCR. In conclusion, a comprehensive transcriptome of the testis of orange mud crabs from different maturation stages were obtained. This report provides an invaluable resource for enhancing our understanding of this species’ genome structure and biology, as expressed and controlled by their gonads.
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Affiliation(s)
- Khor Waiho
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
- * E-mail: (KW); (MI)
| | - Hanafiah Fazhan
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Md Sheriff Shahreza
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
- School of Fisheries and Aquaculture Sciences, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Julia Hwei Zhong Moh
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Shaibani Noorbaiduri
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Li Lian Wong
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Saranya Sinnasamy
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Mhd Ikhwanuddin
- Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
- * E-mail: (KW); (MI)
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Shilpa M, Selvaraju S, GirishKumar V, Parthipan S, Binsila KB, Arangasamy A, Ravindra JP. Novel insights into the role of cell-free seminal mRNAs on semen quality and cryotolerance of spermatozoa in bulls (Bos taurus). Reprod Fertil Dev 2017; 29:2446-2456. [DOI: 10.1071/rd16290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/09/2017] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to ascertain the effectiveness of seminal plasma mRNAs as markers to assess the reproductive performance of bulls. Semen samples (33 ejaculates) from 11 bulls were evaluated for sperm kinematic and functional parameters. Total RNA was isolated from cell-free seminal (cfs) using TRIzol LS reagent and the concentration of cfs-RNA was 24.4 ± 2.3 µg mL−1 seminal plasma. The cfs-RNA was fragmented to a size of 25–500 bp. Of the cfs-mRNAs screened using real time PCR, expression of protamine 1 (PRM1) was positively (P < 0.05) associated with the mitochondrial membrane potential of raw semen, whereas expression of Fas Ligand (FASLG) was negatively (P < 0.05) associated with sperm velocity, membrane integrity and chromatin distribution in post-thaw semen samples. The percentage of Type A spermatozoa (amplitude of lateral movement of head >2.5 μm and straightness >85%) in raw semen was positively (P < 0.05) associated with bone morphogenetic protein 2 (BMP2), ubiquitin conjugating enzyme E2D3 (UBE2D3), tumour-associated necrotic factor-associated death domain (TRADD) and caspase-3 (CASP3) expression. Nerve growth factor (NGF) expression was positively (P < 0.05) associated with the maintenance of post-thaw functional membrane integrity in spermatozoa and could be used to assess the cryotolerance of bull semen. In conclusion, the expression of cfs mRNAs can be used to assess the reproductive performance of males and to predict the sensitivity of spermatozoa to cryoinjury.
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Najafi A, Asadi E, Moawad AR, Mikaeili S, Amidi F, Adutwum E, Safa M, Sobhani AG. Supplementation of freezing and thawing media with brain-derived neurotrophic factor protects human sperm from freeze-thaw-induced damage. Fertil Steril 2016; 106:1658-1665.e4. [DOI: 10.1016/j.fertnstert.2016.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 08/05/2016] [Accepted: 09/02/2016] [Indexed: 01/19/2023]
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Camerino C, Conte E, Cannone M, Caloiero R, Fonzino A, Tricarico D. Nerve Growth Factor, Brain-Derived Neurotrophic Factor and Osteocalcin Gene Relationship in Energy Regulation, Bone Homeostasis and Reproductive Organs Analyzed by mRNA Quantitative Evaluation and Linear Correlation Analysis. Front Physiol 2016; 7:456. [PMID: 27790153 PMCID: PMC5061807 DOI: 10.3389/fphys.2016.00456] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 09/22/2016] [Indexed: 11/13/2022] Open
Abstract
Nerve Growth Factor (NGF)/Brain-derived Neurotrophic Factor (BDNF) and osteocalcin share common effects regulating energy, bone mass, reproduction and neuronal functions. To investigate on the gene-relationship between NGF, BDNF, and Osteocalcin we compared by RT-PCR the transcript levels of Ngf, Bdnf and Osteocalcin as well as of their receptors p75NTR/NTRK1, NTRK2, and Gprc6a in brain, bone, white/brown adipose tissue (WAT/BAT) and reproductive organs of 3 months old female and male mice. Brain and bone were used as positive controls for NGF/BDNF and Osteocalcin respectively. The role of oxitocin(Oxt) and its receptor(Oxtr) was also investigated. Ngf expression shows an opposite trend compared to Bdnf. Ngf /p75NTR expression is 50% higher in BAT than brain, in both genders, but lower in bone. In contrast, Bdnf expression in bone is higher than in brain, but low in BAT/WAT. We found Osteocalcin gene expressed in brain in both genders, but Gprc6a expression is low in brain and BAT/WAT. As expected, Gprc6a gene is expressed in bone. Oxt gene was markedly expressed in brain, Oxtr in the ovaries and in fat and bone in both genders. Ngf is highly expressed in reproductive tissues and p75NTR mRNA levels are respectively 300, 100, and 50% higher in testis/ovaries/uterus than in brain. In contrast, BDNF genes are not expressed in reproductive tissues. As expected, Gprc6a is expressed in testis but not in the ovaries/uterus. A significant correlation was found between the expression levels of the gene ligands and their receptors in brain, BAT and testis suggesting a common pathway of different genes in these tissues in either male and female. Changes in the expression levels of osteocalcin, Ngf, or Bdnf genes may mutually affect the expression levels of the others. Moreover, it may be possible that different ligands may operate through different receptor subtypes. Oxt and Oxtr failed to show significant correlation. The up-regulation of Ngf /p75NTR in BAT is consistent with NGF as an energy regulator and with BDNF regulating bone.
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Affiliation(s)
- Claudia Camerino
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of BariBari, Italy; Department of Molecular and Cellular Physiology, University of CincinnatiCincinnati, OH, USA
| | - Elena Conte
- Department of Pharmacy - Drug Sciences, University of Bari Bari, Italy
| | - Maria Cannone
- Department of Pharmacy - Drug Sciences, University of Bari Bari, Italy
| | - Roberta Caloiero
- Department of Pharmacy - Drug Sciences, University of Bari Bari, Italy
| | - Adriano Fonzino
- Department of Pharmacy - Drug Sciences, University of Bari Bari, Italy
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Maranesi M, Parillo F, Leonardi L, Rebollar PG, Alonso B, Petrucci L, Gobbetti A, Boiti C, Arruda-Alencar J, Moura A, Zerani M. Expression of nerve growth factor and its receptors in the uterus of rabbits: functional involvement in prostaglandin synthesis. Domest Anim Endocrinol 2016; 56:20-8. [PMID: 26986844 DOI: 10.1016/j.domaniend.2016.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 01/24/2023]
Abstract
The aim of the present study was to evaluate: (1) the presence of nerve growth factor (NGF), neurotrophic tyrosine kinase receptor 1 (NTRK1), and nerve growth factor receptor (NGFR) in the rabbit uterus; and (2) the in vitro effects of NGF on PGF2α and PGE2 synthesis and on the PGE2-9-ketoreductase (PGE2-9-K) activity by the rabbit uterus. Nerve growth factor, NTRK1, and NGFR were immunolocalized in the luminal and glandular epithelium and stroma cells of the endometrium. reverse transcriptase polymerase chain reaction indicated the presence of messenger RNA for NGF, NTRK1, and NGFR in the uterus. Nerve growth factor increased (P < 0.01) in vitro secretions of PGF2α and PGE2 but coincubation with either NTRK1 or oxide nitric synthase (NOS) inhibitors reduced (P < 0.01) PGF2α production and blocked (P < 0.01) PGE2 secretion. Prostaglandins releases were lower (P < 0.01) than control when uterine samples were treated with NGF plus cyclooxygenase inhibitor. However, addition of NGFR inhibitor reduced (P < 0.01) PGF2α secretion less efficiently than NTRK1 or NOS inhibitors but had no effect on PGE2 yield. Nerve growth factor increased (P < 0.01) the activity of PGE2-9-K, whereas coincubation with NTRK1 or NOS inhibitors abolished (P < 0.01) this increase in PGE2-9-K activity. However, cotreatment with either cyclooxygenase or NGFR inhibitors had no effect on PGE2-9-K activity. This is the first study to document the distribution of NGF/NTRK1 and NGFR systems and their effects on prostaglandin synthesis in the rabbit uterus. NGF/NTRK1 increases PGF2α and PGE2 productions by upregulating NOS and PGE2-9-K activities, whereas NGF/NGFR augments only PGF2α secretion, through an intracellular mechanism that is still unknown.
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Affiliation(s)
- M Maranesi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Perugia, Perugia, 06216, Italy.
| | - F Parillo
- Scuola di Bioscienze e Medicina Veterinaria, Università degli Studi di Camerino, Matelica (MC), 62024, Italy
| | - L Leonardi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Perugia, Perugia, 06216, Italy
| | - P G Rebollar
- Departamento Producción Animal, ETSI Agrónomos, Universidad Politécnica de Madrid, Ciudad Universitaria, Madrid, 28040, Spain
| | - B Alonso
- Departamento Producción Animal, ETSI Agrónomos, Universidad Politécnica de Madrid, Ciudad Universitaria, Madrid, 28040, Spain
| | - L Petrucci
- Scuola di Bioscienze e Medicina Veterinaria, Università degli Studi di Camerino, Matelica (MC), 62024, Italy
| | - A Gobbetti
- Scuola di Bioscienze e Medicina Veterinaria, Università degli Studi di Camerino, Matelica (MC), 62024, Italy
| | - C Boiti
- Dipartimento di Medicina Veterinaria, Università degli Studi di Perugia, Perugia, 06216, Italy
| | - J Arruda-Alencar
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, 60020-181, Brazil
| | - A Moura
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, 60020-181, Brazil
| | - M Zerani
- Scuola di Bioscienze e Medicina Veterinaria, Università degli Studi di Camerino, Matelica (MC), 62024, Italy
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Najafi A, Amidi F, Sedighi Gilani MA, Moawad AR, Asadi E, Khanlarkhni N, Fallah P, Rezaiian Z, Sobhani A. Effect of brain-derived neurotrophic factor on sperm function, oxidative stress and membrane integrity in human. Andrologia 2016; 49. [DOI: 10.1111/and.12601] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2016] [Indexed: 01/08/2023] Open
Affiliation(s)
- A. Najafi
- Department of Anatomy; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - F. Amidi
- Department of Anatomy; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - M. A. Sedighi Gilani
- Department of Urology; Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - A. R. Moawad
- Departments of Obstetrics and Gynecology; Surgery; McGill University; Montreal QC Canada
- Department of Theriogenology; Faculty of Veterinary Medicine; Cairo University; Giza Egypt
| | - E. Asadi
- Department of Anatomy; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - N. Khanlarkhni
- Department of Anatomy; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - P. Fallah
- Infertility Center; Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - Z. Rezaiian
- Infertility Center; Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - A. Sobhani
- Department of Anatomy; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
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Expression of NGF, BDNF and their receptors in subcutaneous adipose tissue of lactating cows. Res Vet Sci 2015; 102:196-9. [DOI: 10.1016/j.rvsc.2015.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/18/2015] [Accepted: 08/25/2015] [Indexed: 01/09/2023]
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Maranesi M, Zerani M, Leonardi L, Pistilli A, Arruda-Alencar J, Stabile AM, Rende M, Castellini C, Petrucci L, Parillo F, Moura A, Boiti C. Gene Expression and Localization of NGF and Its Cognate Receptors NTRK1 and NGFR in the Sex Organs of Male Rabbits. Reprod Domest Anim 2015; 50:918-25. [DOI: 10.1111/rda.12609] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/17/2015] [Indexed: 12/22/2022]
Affiliation(s)
- M Maranesi
- Dipartimento di Medicina Veterinaria; Università degli Studi di Perugia; Perugia Italy
| | - M Zerani
- Scuola di Bioscienze e Medicina Veterinaria; Università degli Studi di Camerino; Matelica Italy
| | - L Leonardi
- Dipartimento di Medicina Veterinaria; Università degli Studi di Perugia; Perugia Italy
| | - A Pistilli
- Dipartimento di Scienze Chirurgiche e Biomediche; Sezione di Anatomia Umana; Clinica e Forense; Università degli Studi di Perugia; Perugia Italy
| | - J Arruda-Alencar
- Department of Animal Science; Federal University of Ceará; Fortaleza CE Brazil
| | - AM Stabile
- Dipartimento di Scienze Chirurgiche e Biomediche; Sezione di Anatomia Umana; Clinica e Forense; Università degli Studi di Perugia; Perugia Italy
| | - M Rende
- Dipartimento di Scienze Chirurgiche e Biomediche; Sezione di Anatomia Umana; Clinica e Forense; Università degli Studi di Perugia; Perugia Italy
| | - C Castellini
- Dipartimento di Scienze Agrarie; Alimentari e Ambientali; Università degli Studi di Perugia; Perugia Italy
| | - L Petrucci
- Scuola di Bioscienze e Medicina Veterinaria; Università degli Studi di Camerino; Matelica Italy
| | - F Parillo
- Scuola di Bioscienze e Medicina Veterinaria; Università degli Studi di Camerino; Matelica Italy
| | - A Moura
- Department of Animal Science; Federal University of Ceará; Fortaleza CE Brazil
| | - C Boiti
- Dipartimento di Medicina Veterinaria; Università degli Studi di Perugia; Perugia Italy
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Colitti M. Expression of NGF, BDNF and their high-affinity receptors in ovine mammary glands during development and lactation. Histochem Cell Biol 2015; 144:559-70. [DOI: 10.1007/s00418-015-1360-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2015] [Indexed: 01/01/2023]
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32
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Osman TA, Øijordsbakken G, Costea DE, Johannessen AC. Successful triple immunoenzymatic method employing primary antibodies from same species and same immunoglobulin subclass. Eur J Histochem 2013; 57:e22. [PMID: 24085271 PMCID: PMC3794353 DOI: 10.4081/ejh.2013.e22] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 06/18/2013] [Accepted: 06/21/2013] [Indexed: 12/02/2022] Open
Abstract
Protocols for immunohistochemical (IHC) detection of multiple antigens in the same tissue sections have been developed using primary antibodies directly conjugated to different enzymes or fluorochromes, or ones that have been raised in different species, or from different immunoglobulin (Ig) classes or subclasses. For antibodies lacking such dissimilarities, very few proposals have been published with varying degrees of generalizability. In this report we present a successful triple IHC protocol engaging three unconjugated monoclonal primary antibodies raised in the same species and of the same Ig subclass. Compared to other methods, our results showed that denaturation of the preceding reaction complex by microwave heating, combined with additional suppression of enzyme activity, enabled the detection of all three reactions by using the same detection system, with no cross reaction observed. Moreover, expression patterns of each of the three antigens in the triple stained sections, was found to be similar to the pattern observed when single staining was performed. Unlike previous reports, no damage of targeted antigens or tissues did occur following this protocol. Furthermore, the contrast of the colors employed was investigated by computerized color deconvolution, and the three reactions products were successfully separated into three individual images that could be used for further objective quantification.
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Affiliation(s)
- T A Osman
- Department of Clinical Medicine, the Gade Laboratory for Pathology, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway..
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Zhang L, Wang H, Yang Y, Liu H, Zhang Q, Xiang Q, Ge R, Su Z, Huang Y. NGF induces adult stem Leydig cells to proliferate and differentiate during Leydig cell regeneration. Biochem Biophys Res Commun 2013; 436:300-5. [PMID: 23743199 DOI: 10.1016/j.bbrc.2013.05.098] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 05/23/2013] [Indexed: 12/19/2022]
Abstract
Nerve growth factor (NGF) has been reported to be involved in male reproductive physiology. However, few reports have described the activity of NGF during Leydig cell development. The objective of the present study was to examine the role of NGF during stem-Leydig-cell (SLC) regeneration. We investigated the effects of NGF on Leydig-cell (LC) regeneration by measuring mRNA levels in the adult rat testis after ethane dimethanesulfonate (EDS) treatment. Furthermore, we used the established organ culture model of rat seminiferous tubules to examine the regulation of NGF during SLC proliferation and differentiation using EdU staining, real-time PCR and western blotting. Progenitor Leydig cells (PLCs) and immature Leydig cells (ILCs) were also used to investigate the effects of NGF on LCs at different developmental stages. NGF mRNA levels changed significantly during Leydig-cell regeneration in vivo. In vitro, NGF significantly promoted the proliferation of stem Leydig cells and also induced steroidogenic enzyme gene expression and 3β-HSD protein expression. The data from PLCs and ILCs showed that NGF could increase Cyclin D1 and Hsd 17b3 mRNA levels in PLCs and Cyclin D1 mRNA levels in ILCs. These results indicate that NGF may play an important role during LC regeneration by regulating the proliferation and differentiation of LCs at different developmental stages, from SLCs to PLCs and from PLCs to ILCs. The discovery of this effect of NGF on Leydig cells will provide useful information for developing new potential therapies for PADAM (Partial Androgen Deficiency in the Aging Male).
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Affiliation(s)
- Lei Zhang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, 510632 Guangzhou, PR China
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Abstract
Neurotrophins are a family of polypeptide growth factors that are required for the proliferation, differentiation, survival, and death of neuronal cells. A growing body of evidence suggests that they may have broader physiological roles in various non-neuronal tissues. The testicles are complex non-neuronal organs in which diverse cell types interact to achieve correct spermatogenesis. Both neurotrophins and their receptors have been detected in various cell types from mammalian testes, suggesting that neurotrophins may regulate or mediate intercellular communication within this organ. This review summarizes the existing data on the cellular distribution and possible biological roles of neurotrophins in the testes. The data reported in the literature indicate that neurotrophins affect somatic cell growth and spermatogenesis and imply that they play a role in regulating testicular development and male reproduction.
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36
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Kasimanickam V, Kasimanickam R, Arangasamy A, Saberivand A, Stevenson J, Kastelic J. Association between mRNA abundance of functional sperm function proteins and fertility of Holstein bulls. Theriogenology 2012; 78:2007-2019.e2. [DOI: 10.1016/j.theriogenology.2012.07.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 07/06/2012] [Accepted: 07/15/2012] [Indexed: 10/27/2022]
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Saruta J, Fujino K, To M, Tsukinoki K. Expression and localization of brain-derived neurotrophic factor (BDNF) mRNA and protein in human submandibular gland. Acta Histochem Cytochem 2012; 45:211-8. [PMID: 23012486 PMCID: PMC3445760 DOI: 10.1267/ahc.12005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Accepted: 04/09/2012] [Indexed: 01/24/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) promotes cell survival and differentiation in the central and peripheral nervous systems. Previously, we reported that BDNF is produced by salivary glands under acute immobilization stress in rats. However, expression of BDNF is poorly understood in humans, although salivary gland localization of BDNF in rodents has been demonstrated. In the present study, we investigated the expression and localization of BDNF in the human submandibular gland (HSG) using reverse transcription-polymerase chain reaction, western blot analysis, in situ hybridization (ISH), immunohistochemistry (IHC), and ELISA. BDNF was consistently localized in HSG serous and ductal cells, as detected by ISH and IHC, with reactivity being stronger in serous cells. In addition, immunoreactivity for BDNF was observed in the saliva matrix of ductal cavities. Western blotting detected one significant immunoreactive 14 kDa band in the HSG and saliva. Immunoreactivities for salivary BDNF measured by ELISA in humans were 40.76±4.83 pg/mL and 52.64±8.42 pg/mL, in men and women, respectively. Although salivary BDNF concentrations in females tended to be higher than in males, the concentrations were not significantly different. In conclusion, human salivary BDNF may originate from salivary glands, as the HSG appears to produce BDNF.
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Affiliation(s)
- Juri Saruta
- Department of Maxillofacial Diagnostic Science, Division of Pathology, Kanagawa Dental College
- Research Institute of Salivary Gland and Health Medicine, Kanagawa Dental College
| | - Kazuhiro Fujino
- Department of Oral Pathology, Kanagawa Dental College Postgraduate School
| | - Masahiro To
- Department of Oral Pathology, Kanagawa Dental College Postgraduate School
| | - Keiichi Tsukinoki
- Department of Maxillofacial Diagnostic Science, Division of Pathology, Kanagawa Dental College
- Research Institute of Salivary Gland and Health Medicine, Kanagawa Dental College
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Seo HJ, Lee SK, Baik HW, Lee KH. Expressional Profiling of Molecules Associated with Epigenetic Methylation-Related Fertility in the Rat Testis during Postnatal Period. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2012. [DOI: 10.5187/jast.2012.54.3.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kozina V, Geist D, Kubinová L, Bilić E, Karnthaler HP, Waitz T, Janáček J, Chernyavskiy O, Krhen I, Ježek D. Visualization of Reinke's crystals in normal and cryptorchid testis. Histochem Cell Biol 2011; 135:215-28. [PMID: 21287192 DOI: 10.1007/s00418-011-0782-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2011] [Indexed: 01/21/2023]
Abstract
Within the human testis, Reinke's crystals are found in Leydig cells but their nature and function are poorly understood. The aim of our study was to investigate the properties of Reinke's crystals in man with the normal morphology of the testis (control group) and infertile patients diagnosed with cryptorchidism. 20 biopsies from infertile patients and six biopsies from men with regular spermatogenesis (20-30 years.) were used. Sections of the testis tissue were stained with haematoxylin and eosin and a modified Masson's method. Specimens were observed by bright field, confocal and transmission electron microscopy (TEM). The number of Reinke's crystals in investigated groups was determined applying stereological methods. In both groups, Reinke's crystals were noted within the cytoplasm and nuclei of Leydig cells. Some "free" crystals were found within the interstitial space, outside Leydig cells. Confocal microscopy proved to be very useful in the assessment of the shape and 3D reconstruction of the crystal. TEM analysis confirmed a hexagonal form of the crystal, while crystallographic data on sections of 70-300 nm thickness provided a better insight into the organization of the crystal lattice. Stereological analysis revealed a significant increase in the number of crystals in cryptorchid testes when compared with controls. Increased number of crystals in cryptorchid specimens leads to the assumption that the prolonged exposure to higher (abdominal) temperature might stimulate enzymes involved in the synthesis of the proteins of the crystal. However, the exact molecular nature of the crystal lattice remains in both normal and cryptorchid testis obscure.
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Affiliation(s)
- Viviana Kozina
- Department of Histology and Embryology, School of Medicine, University of Zagreb, Šalata 3, 10000 Zagreb, Croatia
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Iwamoto T, Yamada A, Arakaki M, Sugawara Y, Ono M, Futaki M, Yoshizaki K, Fukumoto E, Nakamura T, Fukumoto S. Expressions and Functions of Neurotrophic Factors in Tooth Development. J Oral Biosci 2011. [DOI: 10.1016/s1349-0079(11)80031-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zheng L, Li C, Sun Y, Liu Z, Zhou X. Expression of brain-derived neurotrophic factor in mature spermatozoa from fertile and infertile men. Clin Chim Acta 2011; 412:44-7. [DOI: 10.1016/j.cca.2010.08.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 07/27/2010] [Accepted: 08/31/2010] [Indexed: 10/19/2022]
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42
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Li C, Sun Y, Yi K, Ma Y, Sun Y, Zhang W, Zhou X. Detection of nerve growth factor (NGF) and its specific receptor (TrkA) in ejaculated bovine sperm, and the effects of NGF on sperm function. Theriogenology 2010; 74:1615-22. [DOI: 10.1016/j.theriogenology.2010.06.033] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 06/23/2010] [Accepted: 06/23/2010] [Indexed: 02/06/2023]
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43
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Li C, Zheng L, Wang C, Zhou X. Absence of nerve growth factor and comparison of tyrosine kinase receptor A levels in mature spermatozoa from oligoasthenozoospermic, asthenozoospermic and fertile men. Clin Chim Acta 2010; 411:1482-6. [DOI: 10.1016/j.cca.2010.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 05/10/2010] [Accepted: 06/02/2010] [Indexed: 01/21/2023]
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44
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Tissue-specific and neural activity-regulated expression of human BDNF gene in BAC transgenic mice. BMC Neurosci 2009; 10:68. [PMID: 19555478 PMCID: PMC2708170 DOI: 10.1186/1471-2202-10-68] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Accepted: 06/25/2009] [Indexed: 01/01/2023] Open
Abstract
Background Brain-derived neurotrophic factor (BDNF) is a small secreted protein that has important roles in the developing and adult nervous system. Altered expression or changes in the regulation of the BDNF gene have been implicated in a variety of human nervous system disorders. Although regulation of the rodent BDNF gene has been extensively investigated, in vivo studies regarding the human BDNF gene are largely limited to postmortem analysis. Bacterial artificial chromosome (BAC) transgenic mice harboring the human BDNF gene and its regulatory flanking sequences constitute a useful tool for studying human BDNF gene regulation and for identification of therapeutic compounds modulating BDNF expression. Results In this study we have generated and analyzed BAC transgenic mice carrying 168 kb of the human BDNF locus modified such that BDNF coding sequence was replaced with the sequence of a fusion protein consisting of N-terminal BDNF and the enhanced green fluorescent protein (EGFP). The human BDNF-BAC construct containing all BDNF 5' exons preceded by different promoters recapitulated the expression of endogenous BDNF mRNA in the brain and several non-neural tissues of transgenic mice. All different 5' exon-specific BDNF-EGFP alternative transcripts were expressed from the transgenic human BDNF-BAC construct, resembling the expression of endogenous BDNF. Furthermore, BDNF-EGFP mRNA was induced upon treatment with kainic acid in a promotor-specific manner, similarly to that of the endogenous mouse BDNF mRNA. Conclusion Genomic region covering 67 kb of human BDNF gene, 84 kb of upstream and 17 kb of downstream sequences is sufficient to drive tissue-specific and kainic acid-induced expression of the reporter gene in transgenic mice. The pattern of expression of the transgene is highly similar to BDNF gene expression in mouse and human. This is the first study to show that human BDNF gene is regulated by neural activity.
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Sun C, Hu Y, Chu Z, Huang J, Zhang L. The effect of brain-derived neurotrophic factor on angiogenesis. ACTA ACUST UNITED AC 2009; 29:139-43. [DOI: 10.1007/s11596-009-0201-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Indexed: 02/05/2023]
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Schell C, Albrecht M, Mayer C, Schwarzer JU, Frungieri MB, Mayerhofer A. Exploring human testicular peritubular cells: identification of secretory products and regulation by tumor necrosis factor-alpha. Endocrinology 2008; 149:1678-86. [PMID: 18187550 DOI: 10.1210/en.2007-1064] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Testicular peritubular cells are myofibroblastic cells, which represent the major cellular components of the wall of the seminiferous tubules. In men their phenotypic characteristics, including possible secretory activity and regulation, are not well known, in neither normal nor pathologically altered testes. Especially in testes of men with impaired spermatogenesis, the cytoarchitecture of the tubular wall is frequently remodeled and presents fibrotic thickening, increased innervation, and infiltration by macrophages and mast cells. The latter are two sources of TNF-alpha. The purpose of our study was to explore human testicular peritubular cells and mechanisms of their regulation. To this end we primarily studied cultured human testicular peritubular cells (HTPCs), isolated from adult human testes. Having established that HTPCs express TNF-alpha receptors 1 and 2 and respond to recombinant human TNF-alpha by a rapid phosphorylation of ERK1/2, we used complementary approaches, including gene array/RT-PCR studies, Western blotting/immunocytochemistry, and ELISA techniques to study phenotypic characteristics of HTPCs and actions of TNFalpha. We found that HTPCs express the nerve growth factor gene and TNF-alpha-stimulated mRNA levels and secretion of nerve growth factor in a dose- and time-dependent manner. Similarly, monocyte chemoattractant protein-1 was identified as a product of HTPCs, which was regulated by TNF-alpha in a concentration- and time-dependent manner. TNF-alpha furthermore strongly enhanced expression and/or synthesis of other inflammatory molecules, namely IL-6 and cyclooxygenase-2. Active cyclooxygenase-2 is indicated by increased prostaglandin D2 levels. In addition, intercellular adhesion molecule-1, which was not detected at protein level in the absence of TNF-alpha, was induced upon TNF-alpha stimulation. In conclusion, these results provide novel insights into the nature of human peritubular cells, which are able to secrete potent signaling molecules and are regulated by TNF-alpha. These results also hint to an as-yet-unknown role of peritubular cells in normal human testis and involvement in the pathomechanisms associated with impaired spermatogenesis in men.
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Affiliation(s)
- Christoph Schell
- Institute of Anatomy, Ludwig-Maximilians-University, Biedersteiner Strasse 29, Munich, Germany
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Abstract
The progress in discerning the structure and function of cells and tissues in health and disease has been achieved to a large extent by the continued development of new reagents for histochemistry, the improvement of existing techniques and new imaging techniques. This review will highlight some advancements made in these fields.
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Taatjes DJ, Zuber C, Roth J. The histochemistry and cell biology vade mecum: a review of 2005–2006. Histochem Cell Biol 2006; 126:743-88. [PMID: 17149649 DOI: 10.1007/s00418-006-0253-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2006] [Indexed: 02/07/2023]
Abstract
The procurement of new knowledge and understanding in the ever expanding discipline of cell biology continues to advance at a breakneck pace. The progress in discerning the physiology of cells and tissues in health and disease has been driven to a large extent by the continued development of new probes and imaging techniques. The recent introduction of semi-conductor quantum dots as stable, specific markers for both fluorescence light microscopy and electron microscopy, as well as a virtual treasure-trove of new fluorescent proteins, has in conjunction with newly introduced spectral imaging systems, opened vistas into the seemingly unlimited possibilities for experimental design. Although it oftentimes proves difficult to predict what the future will hold with respect to advances in disciplines such as cell biology and histochemistry, it is facile to look back on what has already occurred. In this spirit, this review will highlight some advancements made in these areas in the past 2 years.
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Affiliation(s)
- Douglas J Taatjes
- Department of Pathology, Microscopy Imaging Center, College of Medicine, University of Vermont, Burlington, VT 05405, USA.
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