PMID- 27631133 OWN - NLM STAT- MEDLINE DCOM- 20171205 LR - 20171213 IS - 1872-7603 (Electronic) IS - 0165-0378 (Linking) VI - 118 DP - 2016 Nov TI - Antibodies directed against annexin A2 and obstetric morbidity. PG - 50-53 LID - S0165-0378(16)30087-0 [pii] LID - 10.1016/j.jri.2016.08.010 [doi] AB - Acquired and inherited thrombophilia have both been reported to be associated with an increased risk of obstetric complications in early or later stages of pregnancy. Annexin A2 (ANXA2) is strongly expressed in vascular and placental tissues and plays a crucial role in fibrinolysis. The aim of the present study was to evaluate the prevalence of antibodies directed against ANXA2 in patients with recurrent miscarriage or obstetric complications. Anti-ANXA2 antibodies (aANXA2) were detected by ELISA in the sera from 46 women with obstetric morbidity, mainly recurrent miscarriage. The cut-off value for positivity was defined as 3 standard deviations above the mean optical density (OD) obtained in the sera from 42 female blood donors. The prevalence of aANXA2 in patients and healthy individuals was 15.2% and 2.3%, respectively. A statistically significant difference was observed between the 2 groups in terms of aANXA2 IgG titers (p=0.01). The highest aANXA2 levels were observed in sera from 2 patients with recurrent miscarriage and one patient with preeclampsia. aANXA2 could play a role in thrombotic mechanisms leading to recurrent pregnancy loss and placental vascular disease. Further studies are needed to determine whether ANXA2 is critical for maintenance of placental integrity. CI - Copyright (c) 2016 Elsevier Ireland Ltd. All rights reserved. FAU - Salle, V AU - Salle V AD - Department of Internal Medicine, Amiens University Hospital, France; INSERM U1088, Biochemistry Laboratory, Amiens University Hospital, France. Electronic address: salle.valery@chu-amiens.fr. FAU - Schmidt, J AU - Schmidt J AD - Department of Internal Medicine, Amiens University Hospital, France. FAU - Smail, A AU - Smail A AD - Department of Internal Medicine, Amiens University Hospital, France. FAU - Maziere, C AU - Maziere C AD - INSERM U1088, Biochemistry Laboratory, Amiens University Hospital, France. FAU - Conte, M A AU - Conte MA AD - INSERM U1088, Biochemistry Laboratory, Amiens University Hospital, France. FAU - Brule, A AU - Brule A AD - French Blood Establishment-North of France, France. FAU - Maziere, J C AU - Maziere JC AD - INSERM U1088, Biochemistry Laboratory, Amiens University Hospital, France. FAU - Cadet, E AU - Cadet E AD - Department of Genetics, Amiens University Hospital, France. FAU - Herpe, Y E AU - Herpe YE AD - Biobank of Picardie, Amiens University Hospital, Amiens, France. FAU - Duhaut, P AU - Duhaut P AD - Department of Internal Medicine, Amiens University Hospital, France. LA - eng PT - Journal Article DEP - 20160830 PL - Ireland TA - J Reprod Immunol JT - Journal of reproductive immunology JID - 8001906 RN - 0 (ANXA2 protein, human) RN - 0 (Annexin A2) RN - 0 (Annexin A5) RN - 0 (Antibodies, Antiphospholipid) RN - Thrombophilia, hereditary SB - IM MH - Abortion, Habitual/*epidemiology MH - Adolescent MH - Adult MH - Annexin A2/*immunology MH - Annexin A5/immunology MH - Antibodies, Antiphospholipid/blood MH - Case-Control Studies MH - Female MH - France/epidemiology MH - Humans MH - Immunity, Humoral MH - Morbidity MH - Pregnancy MH - Prevalence MH - Retrospective Studies MH - Stillbirth/*epidemiology MH - Thrombophilia/*epidemiology MH - Young Adult OTO - NOTNLM OT - Annexin A2 OT - Anti-annexin A2 antibodies OT - Obstetric morbidity EDAT- 2016/09/16 06:00 MHDA- 2017/12/06 06:00 CRDT- 2016/09/16 06:00 PHST- 2016/03/31 00:00 [received] PHST- 2016/08/25 00:00 [revised] PHST- 2016/08/29 00:00 [accepted] PHST- 2016/09/16 06:00 [pubmed] PHST- 2017/12/06 06:00 [medline] PHST- 2016/09/16 06:00 [entrez] AID - S0165-0378(16)30087-0 [pii] AID - 10.1016/j.jri.2016.08.010 [doi] PST - ppublish SO - J Reprod Immunol. 2016 Nov;118:50-53. doi: 10.1016/j.jri.2016.08.010. Epub 2016 Aug 30.