ABSTRACT
Objective This study is aimed to investigate the prognostic significance of ring sideroblast ( RS) in MDS( Myelodysplastic Sydrome ) and evaluate the correlation of RS and other prognostic index.Methods A total of 198 patients with MDS between March 2009 and December 2015 in Chinese PLA′s Gerneral hospital were chosen for this study .Based on the ratio of RS in nucleated red blood cell , patients were first separated into myelodysplastic syndrome without ring sideroblast (MDS RS-) group, RS≥15%, and myelodysplastic syndrome with ring sideroblast ( MDS RS +) group, RS <15%. Then, according to the proportion of blasts in bone marrow nucleated cells above 5%or below, patients were further divided into myelodysplastic syndrome with low blasts without ring sideroblast ( MDS-LB RS-) group, myelodysplastic syndrome with low blasts and ring sideroblast ( MDS-LB RS+) group, refractory anemia with excess blast without ring sideroblast ( RAEB RS-) group and refractory anemia with excess blast and ring sideroblast ( RAEB RS+) groupe.All patients had completed the morphological , genetics , molecular biology examination at dignosis, and followed up by phone.The results of the overall survival (OS) analysis have been presented in a Kaplan-Meier curve and cox regression model .Last, according to the percentage of RS in nucleated red blood cell , patients were separated into RS <5%groupe, 5%-15%group, 15%-40%group, RS≥40%group, and analyse their survival prognosis by statistical methods .Results Comparing to MDS RS-group, the morbidity age, WBC and PLT count were significantly higher [61 ±1.91 vs 52 ±1.37, t=-3.555, P<0.01, 3.82(0.47-323)vs 2.6(0.6-59.7), z=-4.014, P<0.01;139.5(7-608) vs 60(3-724), z =-3.988, P<0.01], bone marrow eythroid hyperplasia and gigantocyte were more obvious in MDS RS+group[χ2 =11.032, P<0.01, χ2 =5.165, P<0.05]; the percentage of GATA1 gene and abnormal rate of poor prognosis gene ( MLL, NRAS, WT1 ) , either mutation or high gene expression , were higher in MDS-LB RS+group than that in MDS-LB RS-( P<0.05 ); Contrasting with RAEB RS-group, the karyotype is worse in RAEB RS +group[χ2 =4.966, P<0.05];Comparing to 15%-40%group, the OS were poorer in RS≥40%;MDS RS+patients were more prone to adverse prognosis than MDS RS-patients.Conclusion Compared to MDS RS-group, MDS RS +patients had worse prognosis;RS maybe correlate to morbidity age , eythroid dysplasia and gene abnormality in affecting the survival prognosis of MDS.
ABSTRACT
Objective To reveal the mechanisms of immunological infertility,the method of coimmunoprecipitation(CO-IP) and liquid chromatogram mass/mass (LC-MS/MS) was used to screen sperm membrane proteins which interacting with antisperm antibodies (ASA).Methods This study was designed as a case-control.The disease group including 56 serum samples from 521 cryptogenic infertile patients were screened ASA positive by ELISA and conformed with mixed antiglobulin reaction(MAR).The controls were 31 serum samples which ASA is negative and already possessed healthy offspring.All subjects were enrolled from September 2015 to December 2015 in China PLA General Hospital.Spermatozoa samples from 48donors with normal sperm parameters were from January 2016 to April 2016 in China PLA General Hospital.The purified human sperm membrane proteins were then mixed with serum from disease group (positive for ASA) and control group (not containing ASA).The binding proteins of antisperm antibodies were enriched using CO-IP assay.The immunoprecipitates were separated on sodium dodecyl sulfate-polyactylamide gel (SDS-PAGE),then the binding proteins were cut from the gel and analyzed by LC-MS/MS after the enzymolysis.These proteins could bc idcntified as definition,biological function (s) and subccllular localization with Uniprot database.Results The serum samples from infertile persons (39 females and 17males) were screened ASA positive by ELISA and conformed with MAR.The healthy controls (17 females and 14 males) were ASA-negative in ELISA.Forty proteins that interact with ASA were obtained from the study and these could be divided into three groups:11 antigens detected by control serum samples only,14antigens recognised by both infertile patients and control sera,and 15 antigens specific for patients with ASA.These 15 proteins are Sperm Cation channcl protein 1,Sperm Cation channel protein 3,Sperm Cation channel protein 4,Sperm associated antigen 9,Apolipoprotein A-I,Dynein heavy chain 14,Cylicin-2,Izumo sperm-egg fusion protein 4,Thioredoxin domain-containing protein 2,IQ domain-containing protein H,IQ domain-containing protein F1,Spermatogenesis-associated protein 5,Spermatogenesis-associated protein 5-like protein 1,Sperm acrosome membrane-associated protein 1,E3 ubiquitin-protein ligase RNF 114.Conclusion Fifteen proteins discovered with CO-IP technology and LC-MS/MS analysis could be referred as male immunoinfertility-related antigens and they may hold the great importance in revealing the secret of immunological infertility.