1.Cytokine-induced killer cells in cancer treatment
Xuefeng HANG ; Zhenyu DING ; Xiaodong XIE
Journal of International Oncology 2012;39(5):344-347
Cytokine-induced killer cells (CIK) is the fourth largest cancer treatment after surgery,chemotherapy and radiotherapy,and it is the development direction of cancer treatment.It is a new type of immune cell,and it is named after natural killer cell samples T lymphocytes as it express CD3 and CD56.Currently,CIK treatment has a broader range of clinical applications,and it has achieved the better clinical efficacy in the blood system cancer and solid tumors,The CIK adoptive immunotherapy is considered to be a new hope for the anticancer treatment.
3.Comparison of clinicopathological features and prognosis in triple-negative and non triple-negative breast cancer
Jingdan QIU ; Zhenhai MA ; Jinhui MA ; Hang YIN ; Xuefeng DONG ; Chongwei WANG ; Yongfu ZHAO
Journal of Endocrine Surgery 2012;06(5):313-317
ObjectiveTo find out the incidence of triple-negative breast cancer(TNBC) in all kinds of breast cancers.To compare and analyze the clinicopathological features,recurrence,metastasis,and prognosis of patients with TNBC and non-triple negative breast cancer (non-TNBC).MethodsThe clinicopathological features and follow-up data of 387 patients with primary breast cancer histopathologically conffirmed in our hospital from Sep.2004 to Sep.2006 were retrospectively analyzed.The 387 patients were divided into 2 groups:79 cases of TNBC and 308 cases of non-TNBC.The clinical features and prognosis of the 2 groups were compared.Results Compared with non-TNBC group,patients in TNBC group had their special features:1.higher ratio of patients < 35 years( P =0.012 ) ; 2.higher ratio of patients with family history of breast cancer( P =0.031 ) ; 3.higher ratio of tumors with maximum diameter ≥ 5 cm ( P =0.044 ) ; 4. higher ratio of patients with positive lymph nodes(P =0.011 ) ; 5.higher ratio of tumors in clinical stage Ⅲ(P =0.007) ; 6.higher ratio of tumors in histological stage Ⅲ(P =0.028 ).The 5-year-disease-free survival (DFS) and overall survival (OS) rate for patients with TNBC were 72.15% and 88.61% respectively,lower than those of non-TNBC ( P =0.003 and 0.031 respectively).ConclusionsCompared with non-TNBC patients,patients with TNBC have the features of younger age,more advanced clinical stage upon diagnose,higher rate of lymph node metastasis,larger tumors,higher histological grade,faster and easier recurrence and metastasis,and lower rate of DFS and OS.The information of age,the maximum diameter of the tumor,lymph node status,clinical stage,histological grade and pathological types,especially the age and lymph node status,play an important role in predicting the prognosis of TNBC.
4.Molecularmechanism of Bel subtype caused by mutation p.R168W of glycosyltransferase B
Songsong GONG ; Wei ZOU ; Fang LI ; Yuqin WANG ; Hang LEI ; Xuefeng WANG ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2017;30(7):679-681
Objective To study the molecular mechanism of Bel subtype caused by mutation p.R168W of glycosyltransferase B.Methods Serological test,SSP-PCR and direct sequence the Exon6 and Exon 7 of the ABO gene.Construct a 3D molecular model and predict the structural impact of GTB protein mutations.Results A antigen or B antigen can't be detected on the surface of the propositus' RBC,and only anti-A antibodies were detected in her serum.But serological test indicated her daughter's blood type was a normal B type.SSP-PCR test indicated propositus' ABO gene type is O1 B.By gene sequencing the Exon 6 and Exon 7 of the ABO gene,a ABO Bel allel(c.502C>T,p.R168W)was discoverd in both the propositus and her daughter.Through the propositus' daughter coexisted Bel gene with normal B gene,her blood type was a normal B type.Conclusions ABO gene c.502C>T mutations cause Bel phenotypes in patients by reducing the stability of GTB.
5.Diagnostic value of sperm DNA fragmentation for male infertility.
Qianjin FEI ; Hang HUANG ; Jianyuan JIN ; Xuefeng HUANG
Chinese Journal of Medical Genetics 2014;31(1):60-64
OBJECTIVETo assess the diagnostic value of sperm DNA fragmentation (SDF) for male infertility.
METHODSTwo hundred and ninety-nine males attending infertility clinic were classified into 157 primary infertile cases and 142 fertile controls. Semen analysis was performed as recommended by the World Health Organization (WHO). SDF was assessed by sperm chromatin dispersion (SCD) assay, and the results were expressed as DNA fragmentation index (DFI).
RESULTSThe DFI was significantly higher in infertile males than that in fertile controls [(17.1± 9.3)% vs. (14.2± 9.0)%](P< 0.01). No significant difference was detected in the age of male and female partners, seminal volume, sperm count, motility and morphology between infertile males and fertile controls (P> 0.05). The area under the receiver operating characteristic curve (AUC) was 0.861 [95% confidence interval (CI)= 0.814-0.907] for 15.1% of SDF. The threshold level of 15.1% was derived as cut-off value to discriminate infertile men from fertile controls. By this threshold, specificity was 88.2% and sensitivity was 81.8%. The 299 men were divided into group A (n= 120) with DFI≥ 15.1% and group B (n= 179) with DFI< 15.1% based on the cut-off value. The percentage of infertile men in group A was significantly higher than that in group B (79.2% vs. 34.6%) (P< 0.01). The odds ratio (OR) for infertility in the two groups was 7.2 (95%CI= 4.2-12.3).
CONCLUSIONSperms with high-level of DNA fragmentation can impair male fertility. DFI can be used as a good diagnostic marker for male infertility.
Adolescent ; Adult ; DNA ; metabolism ; DNA Fragmentation ; Female ; Humans ; Infertility, Male ; diagnosis ; genetics ; Male ; Spermatozoa ; metabolism ; Young Adult
6.Practice and thinking on the construction of pilot medical alliances in Chengdu
Zhiren LONG ; Weihua GUO ; Ying CAO ; Xi CHENG ; Hang LI ; Heng ZHOU ; Xuefeng ZENG
Chinese Journal of Hospital Administration 2018;34(1):10-13
Described in the paper is the practice of Chengdu in its pilot of medical alliances in 2015 ,which effectively elevated the medical capacity and quality of care of medical institutions within Pujiang county. Such measures as enhanced management and mechanism ,clarified government responsibility ,standardized medical service quality ,and enhanced coordination within the healthcare system are proposed to enhance the medical alliances and the hierarchical medical system .
7.Blood transfusion efficacy in patients with major and minor cross-match incompatibility: analysis of 17 cases
Yuqing WANG ; Hang LEI ; Songsong GONG ; Xuefeng WANG ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2021;34(11):1218-1221
【Objective】 To compare the transfusion effects of ABO homotype leukocyte depleted suspended RBC and washed RBC in patients, who present major and minor cross-match incompatibility, DAT+, IAT+ and autoantibody+ . 【Methods】 The hemoglobin and total bilirubin of patients before and after transfusion were detected, and statistical analysis was conducted by IBM SPSS Statistics 22.0 software. 【Results】 34 transfusions were performed in 17 patients with major and minor cross-match incompatibility. Both leukocyte depleted suspended RBC and washed RBC significantly increased Hb level(P<0.001)but not TBIL level(P>0.05), with similar transfusion efficacy(P>0.05). After t, Hb levels(g/L) increased by 11.35±8.07 and 13.94±9.017, and TBIL(μmol/L) decreased by 25.76±88.63 and 6.91±9.39, respectively, after the transfusion of leukocyte depleted suspended RBC and washed RBC per unit. 【Conclusion】 For blood recipients with major and minor cross-match incompatibility, both ABO homotype leukocyte depleted suspended RBC and washed RBC, given in time, were effective. However, washed RBC is secondary choice due to long preparation time and short storage time.
8.Molecular mechanism of ABO bood group variation
Hang LEI ; Xuefeng WANG ; Xiaowen CHENG ; Hui ZHANG ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2024;37(4):385-391
【Objective】 To study the relationship between ABO subtype, para-Bombay blood group and genotype, so as to explore the possible molecular mechanism of these two blood groups, and provide accurate genetic detection targets and theoretical basis for the accurate identification of ABO blood group. 【Methods】 First, the serology of 24 200 patients with blood type identification in the Ruijin Hospital from February to December in 2022 were analyzed, as well as 10 ambiguous ABO samples from other hospitals(3 were suspected ABO subtype and 7 were suspected para-Bombay blood group). Then ABO subtypes and para-Bombay blood groups were directly sequenced or post-clonal sequencing was performed to analyze ABO, FUT1 and FUT2 gene sequences. 【Results】 Among the 24 200 patients underwent blood type identification, 7 cases of ABO subtypes were detected. Among the 10 ambiguous samples sent by other hospitals, 2 of ABO subtypes, 1 of normal type A, and 7 of para-Bombay blood type were detected. In total, we identified blood types as follows: 1) 9 ABO subtypes: A