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Reproductive Immunology
Prof. MUDr. Zdenka Ulcova-Gallova, DrSc. Genetics –Pilsen and Department of Gynecology and Obstetrics of Charles University, Pilsen, Czech Republic
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Screening for reproductive immunology (RI)
Sperm antibodies Zona pellucida antibodies Panel of various antiphospholipid antibodies (eight) Embryocytotoxic cytokines Intraacrosomal proteins Endometrial Ab Antitrophoblast antibodies aTSH, aTPO HLA-I a HLA II HLA-G AMH Inhibin (A, B) Local CD56+/CD16+ Detailed immunological profile according to basic dg.(CD56/CD16)
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RI Men Women Both
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Immunological origin in unknown/known cause of infertility
Repeated spontaneous abortion or missed abortion Repeated IVF failure Patients with autoimmune or oncological diseases Endometriosis, preeclampsia, PCO, POF, HELLP….. Andrological factor
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Zona pellucida antibodies
Sperm antibodies
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Anti-sperm antibodies (ASA)
History Incidence in men, women Methods of measurement „Treatment“
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Rich history of ASA Animals: by Landsteiner and Metchnikoff Metalnikoff 1932 Baskin Human studies:Rumke 1954, Bronson, Shulman (1991), Dondero, Hendry, Fjallbrandt, Hjort, Isojima, Mori, Koyama,Kutteh, Moghissi, Nakov, Bratanov, Lenzi, Mathur, Ingerslev, Clark,Mettler, Ulcova-Gallova (1985), Bohring, etc. Multicentric study , comparison of various tests for detection of ASA
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Origin of ASA in men Damage of blood testis-barrier
Genetic predisposition HLA A-28, B-22
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Origin of ASA in women Ascendent immunisation
(but other way is possible)
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Sperm antibodies inhibit from:
Sperm transport Bloking ZP penetration Sperm capacitation Acrosomal reaction Early fertilization Postfertilization effect
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Examination Serum Semen OCM Peritoneal fluid Folicular fluid
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Detection of free ASA Gelatin agglutination tests (GAT-Kibrick)
Tube-Slide Agglutination test Tray agglutination test (TAT-Friberg) Sperm-immobilization test(Isojima) Mixed reaction anti-immunoglobulin tests (MAR-test) Immunobead technique ELISA (poor correlation with infertility) RIA
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ASA IgG IgM IgA, s IgA (i IgE)
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ASA and significance Sperm-agglutinating Sperm-immobilising
Sperm-cytotoxic
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Prof. Isojima S. Publication Science AJRI,
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Kibrick test Shulman,1985
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Capillary test (Fjallebrandt)
Shulman,1985
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Sperm-agglutination head to head -TAT
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Direct /indirect MAR test or immunobead test
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OCM The Miller-Kurzrok Test) The Sperm Cervical Mucus Contact Test
Kremer test
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Kremer test
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Antizonal antibodies (aZP)
Block sperm adherention and sperm penetration into oocyte Postfertilization effect
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Zona pellucida Animal models
(Oikawa, Yanagimachi, Kamada, Mori, Aitken, Hasegawa, Koyama, Isojima, Inoue, Yamasaki, Clark, et al.) Importance of ZP ZP epitopes
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ZP Human ZP X porcine ZP (Sacco, 1977)
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AJRI Ulcova-Gallova Z., Mardesic T.: Does In Vitro Fertilization ( IVF ) Influence the Levels of Sperm and Zona Pellucida ( ZP ) Antibodies in Infertile Women? Amer. J. Reprod. Immunol. 1996, 36, p Very important!!!
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ZP antigens Porcine oocytes
ZP1 –ZP4 epitopes (60 kDa, Hasegawa et al. 1995) Mice –ZP 1- ZP3 Monoclonal antibodies
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Koyama, Hasegawa, Mochida, Colongos, 2005-2015
Induction of follicular dysfunction by ZP E.g. ↑aZP in POF Et al.
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Examination of aZP antibodies
Passive haemmagglutination tests ELISA
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Antiphospholipid antibodies
Interference with membrane phospholipid 1. Prae-conceptionally 2 .Post-conceptionally
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APA (IgG, IgA, IgM) Ph-L-serine ph-L-glycerol ph-L-inositol
ph-ethanolamine -annexin V ph-acid cardiolipin b2-GP
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Criteria of APA sy - are not sufficiant for infertility In general:
aPls Thrombosis (thrombocytopenie?) Failure in reproduction
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For instance
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Analysis of 2965 infertile women (Ulcova-Gallova et al
Analysis of 2965 infertile women (Ulcova-Gallova et al.AJRI, 2005 Aug;54(2):112-7.) P < 0,001
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For instance Immuno-histological detection a-annexin V Ab
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Červeně: apoptotic.buňky
Zeleně: mrtvé buňky
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Detection of intracrosomal enzymes
IF (monoclonal antibodies)
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Immunological tolerance
Mother X foetus
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Dr. Peter Medawar a prof.Milan Hasek
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Nidation and implantation
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Mother -immunotolerance
Barier of decidua Blockade antibodies Immunotolerance to foetus antigens Pregnancy specific proteins (Bohn p.) HCG, E, P Anti-idiotype antibodies Immunosuppressive cells (spec., non-sp.) Other mechan.
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Foetus -immunotolerance
Throphoblast bariere of placenta Sialomucinglycocalix layer Low expression of MHC Damping elements:e.g. α FP, PGE, … C system
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Ab -detection Anti-foetus Anti-placental Anti-paternal
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Development of a particular immune response which enhances embryo acceptance
? Th2 Th2 RESPONSE ΑΝΤΙΓΟΝΑ ΤΡΟΦΟΒΛΑΣΤΗΣ HLA-G; CD46; R80k; CD1; ; «ÔÇ2» Recognition by decidual cells Trophoblast antigens HLA-G? CD46? R80k? CD1? γδTcells? FACILITATION REACTION IMMUNOTROPHISM growth, maturation of the placenta Blocking antibodies BLOCKAGE of cytotoxic reactions Immunoabsorbent placenta Trophoblast resistant Local hormone-dependent immunosuppression to NK cell lysis
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Rh-incompatibility (ery-C,D,E,c,d,e)
Rh negative mother Rh positive foetus Treatment: anti D (to 72 hours) ABO –incomp.very rare Keely, Lewin etc.
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CAVE! - foetus erytroblastosis 1. Anaemia neonatorum
2. Icterus neonati gravis 3. Hydrops fetus universalis
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15-20% of infertile couple Clear immunological cause of infertility or combine with other causes
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FERTILITY and RI biologic aging of the hypothalamic-pituitary-ovarian axis in elder women →changes in endocrinology, immunity, psychology Tests in RI withe reason
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Immunological screening for reproductive failure
Sperm antibodies Zona pellucida antibodies Panel of various antiphospholipid antibodies (eight) Embryocytotoxic cytokines Intraacrosomal proteins Endometrial Ab Inhibin (A, B) Antitrophoblast antibodies aTSH, aTPO HLA-I a HLA II HLA-G AMH Local CD56+/CD16+ Detailed immunological profile according to basic dg.(CD56/CD16)
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Other future in RI Antigens of Sperm, ZP, beta HCG etc. - contraceptive vaccine Ways, means of influencing of fertility
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