scholarly journals Sertoli cells: immunomodulatory properties, methods of isolation and culture

Author(s):  
N. N. Skaletskiy ◽  
G. N. Skaletskaya

Due to complications caused by the inevitable use of immunosuppressive drugs in organ and cell transplantation, the use of natural mechanisms of immunological tolerance identified in animal and human organisms arouses interest. It has long been known that there are certain areas in them, including the testis, where immune reactions are virtually impossible. Our review focuses on the role of Sertoli cells that provide testicular immune privilege. Methods of isolation and cultivation of Sertoli cells are described and their potentials in biology and medicine are discussed.

2020 ◽  
Vol 16 (2) ◽  
pp. 102-106 ◽  
Author(s):  
Nahid Lorzadeh ◽  
Nastaran Kazemirad

Introduction: One of the identified causes of infertility has been related to the inability to regulate immunological tolerance of the maternal immune system against the developing fetus, thereby inhibiting the process of implantation. Various immune cells have been identified to contribute to the concept of un-regulated immunological tolerance, such as mast cells (MCs) and natural killer cells (NK). There are available evidences that MC play a role in the pathogenesis of infertility diseases like endometriosis and NK in specific infertility disease. Objective: Presently, there are studies to formulate and develop immunosuppressive drugs in order to suppress or inhibit the process of immune rejection caused by maternal immune cells. In addition, there have been reports regarding the use of steroids for the treatment of miscarriage that can inhibit the activity of most immune cells. Conclusion: This review is to give a comprehensive mini-review on the role of immune cells, especially mast cells and NK cells in developing novel infertility treatment.


2011 ◽  
Vol 287-290 ◽  
pp. 112-115
Author(s):  
Shu Feng Li ◽  
Hui Li Tong ◽  
Cong Cong Liu ◽  
Yun Qin Yan

Sertoli cells are an important part of the male reproductive system. Except the function of promoting spermatogenesis such as supporting, providing nutrition and secreting, it also can maintain the immune privilege of testis through the expression of a special surface molecule named FasL. This feature aviods the immune response triggered by self antigen (germ cells) contacting with the body, which can be used to provide immune privilege environment for transplanted cells in areas other than the testis. In this article, we purified mouse sertoli cells, through adding different concentrations of IGF-I and IGF-I receptor inhibitor PPP, we study the role of IGF-I in the proliferation of sertoli cells. The results demonstrated that 30ng/mL IGF-I can promote the proliferation of sertoli cells while 2nmol/L PPP obviously inhibited the proliferation of sertoli cells. This result has a certain significance to obtain the high activity sertoli cells and increase the success rate of xenotransplantation.


1991 ◽  
Vol 125 (3) ◽  
pp. 280-285 ◽  
Author(s):  
J. Alan Talbot ◽  
Ann Lambert ◽  
Robert Mitchell ◽  
Marek Grabinski ◽  
David C. Anderson ◽  
...  

Abstract We have investigated the role of Ca2+ in the control of FSH-induced estradiol secretion by Sertoli cells isolated from 8-10 days old rats. Exogenous Ca2+ (4-8 mmol/1) inhibited FSH-stimulated E2 secretion such that, with 8 mmol/l Ca2+ and FSH (8 IU/l) E2 secretion decreased from 2091±322 to 1480±84 pmol/l (p<0.002), whilst chelation of Ca2+ in the culture medium with EGTA (3 mmol/l) increased E2 secretion from 360±45 to 1242±133 pmol/l) in the absence of FSH. Further, EGTA (3 mmol/l) markedly potentiated FSH (8 IU/l), forskolin (1 μmol/l) and dibutyryl cAMP (1 mmol/l)-stimulated E2 secretion. Addition of the Ca2+ ionophores, ionomycin (2-5 μmol/l) and A23187 (2 μmol/l), inhibited FSH (8 IU/l)-stimulated E2 secretion by >80%. The effect of ionomycin was totally reversible, whereas that of A23187 was irreversible. Ionomycin (5 μmol/l) had no effect on EGTA-induced E2 secretion in the absence of FSH, but reduced EGTA-provoked E2 secretion by 59% in the presence of FSH (8 IU/l). Similarly, forskolin- and dibutyryl cAMP-provoked E2 production was inhibited 46-50% by ionomycin (5 μmol/l). We conclude that FSH-induced E2 secretion from immature rat Sertoli cells is modulated by intra- and extracellular Ca2+.


2018 ◽  
Vol 25 (35) ◽  
pp. 4535-4544 ◽  
Author(s):  
Annalisa Ruggeri ◽  
Annalisa Paviglianiti ◽  
Fernanda Volt ◽  
Chantal Kenzey ◽  
Hanadi Rafii ◽  
...  

Background: Circulating endothelial cells (CECs), originated form endothelial progenitors (EPCs) are mature cells not associated with vessel walls and detached from the endothelium. Normally, they are present in insignificant amounts in the peripheral blood of healthy individuals. On the other hand, elevated CECs and EPCs levels have been reported in the peripheral blood of patients with different types of cancers and other diseases. Objective: This review aims to provide an overview on the characterization of CECs and EPCs, to describe isolation methods and to identify the potential role of these cells in hematological diseases and hematopoietic stem cell transplantation. Methods: We performed a detailed search of peer-reviewed literature using keywords related to CECs, EPCs, allogeneic hematopoietic stem cell transplantation, and hematological diseases (hemoglobinopathies, hodgkin and non-hodgkin lymphoma, acute leukemia, myeloproliferative syndromes, chronic lymphocytic leukemia). Results: CECs and EPCs are potential biomarkers for several clinical conditions involving endothelial turnover and remodeling, such as in hematological diseases. These cells may be involved in disease progression and in the neoplastic process. Moreover, CECs and EPCs are probably involved in endothelial damage which is a marker of several complications following allogeneic hematopoietic stem cell transplantation. Conclusion: This review provides information about the role of CECs and EPCs in hematological malignancies and shows their implication in predicting disease activity as well as improving HSCT outcomes.


1970 ◽  
Vol 5 (4) ◽  
pp. 61-66
Author(s):  
Patrícia Resende Penido ◽  
Rhanna Junqueira Westin de Carvalho ◽  
Roger Willian Moraes Mendes

RESUMOIntrodução: A Arterite de Takayasu (AT) consiste em uma vasculopatia de origem indefinida, sendo de caráter crônico, que afeta a aorta e seus ramos principais. Em gestantes é uma condição complexa, em que o tratamento clínico é realizado com restrições. A utilização de corticoides tem sido favorável no controle inflamatório, principalmente naqueles casos em que antes da gravidez se fazia uso de imunossupressores. Casuística: Foi relatado um caso de uma gestante portadora de AT, através da análise de prontuário e de exames complementares, sendo realizado o pré-natal pelas equipes de Obstetrícia e Reumatologia, onde foi realizado tratamento clínico com corticoides, mostrando uma evolução satisfatória, ocorrendo apenas uma hospitalização que foi seguida de uma cesárea na trigésima sexta semana de gravidez, com recém nato saudável de 3.810g. Discussão: A AT pode estar associada a várias etiologias, sendo a gênese pouco conhecida. O diagnóstico na maioria das vezes é demorado, pela dificuldade da suspeita clínica, além de demandar o uso de técnicas de imagem mais sofisticadas. A gestação associada é fenômeno raro, já que as portadoras são orientadas a evitarem a gravidez. O controle clínico permitiu uma gestação sem grandes complicações e serviu como meio para levar a gestação até praticamente o fim do terceiro trimestre. Conclusão: Deve-se ressaltar o papel do acompanhamento clínico, especialmente com esta pan-arterite, mostrando os medicamentos que podem ser utilizados nesse grupo, especialmente quando se usava imunossupressores antes da gravidez. Palavras chave: Arterite de Takayasu, Gravidez, Vasculite. ABSTRACT:Introduction: Takayasu's arteritis (TA) consists of a vascular disease of unknown origin and chronic nature, which affects the aorta and its main branches. In pregnant women it is a complex condition, in which the clinical treatment is performed with restrictions. The use of corticosteroids has been favorable to control inflammation, especially in those cases when immunosuppressant had been used before pregnancy. Case Report: A case of a pregnant patient with TA has been reported through the analysis of medical records and laboratory tests. The Obstetrics and Rheumatology staff performed the prenatal care, and clinical treatment with corticosteroids was done showing a satisfactory outcome. There was only one hospitalization of the patient, which was followed by a cesarean in the thirty sixth week of pregnancy.  The newborn was a healthy one, weighing 3.810g. Discussion: TA may be associated with several etiologies, and the genesis is little known. The diagnosis most often takes time due to the difficulty of clinical suspicion, and requires the use of more sophisticated imaging techniques. The pregnancy is rare phenomenon, since the carriers are advised to avoid pregnancy. The clinical management allowed a pregnancy without major complications and served as a means to carry the pregnancy to almost the end of the third quarter. Conclusion: The role of the clinical follow-up should be noticed especially with this pan-arteritis, showing the drugs that can be used in this group, especially when there is use of immunosuppressive drugs before pregnancy. Keywords: Takayasu Arteritis, Pregnancy, Vasculitis.


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