1
|
Abulaiti D, Tuerxun N, Wang H, Abulizi P, Zhao F, Liu Y, Hao J. Differences in Variants in the Structural Domain of BCR-ABL1 Kinase between Chinese Han and Minority Patients with Chronic Myeloid Leukemia by Sanger Sequencing and Next-Generation Sequencing. Cytogenet Genome Res 2022; 162:201-206. [PMID: 36167055 DOI: 10.1159/000524706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/09/2022] [Indexed: 11/19/2022] Open
Abstract
This study aimed to detect differences in BCR-ABL1 kinase domain (KD) variants in patients with chronic myeloid leukemia (CML) who have been warned and failed in tyrosine kinase inhibitor (TKI) treatment among Chinese Han and ethnic minorities through Sanger sequencing (SS) and next-generation sequencing (NGS), and analyze the difference between SS and NGS detection. Peripheral blood samples from 51 CML patients with warning and failure of TKI therapy were analyzed using SS and NGS, and the detection differences between both sequencing types were compared. BCR-ABL1 KD variants were found in 23.53% of the cohort, including 7 Han Chinese (58.33%) and 5 ethnic minority cases (41.67%). Y253H, F317L, M244V, D276G, F359I, L387F, E459K, E255K, T315I, M351V, and heterozygous insertional mutated genes (ABL1 c.1068_1070dup) were detected. Comparison of the two sequencing assays revealed that NGS could detect compound variants and low frequency variants that were not detected by SS. More compound variants were detected in Han patients than in ethnic minority patients. In conclusion, there is no significant difference in BCR-ABL1 KD mutations between Han and ethnic minority patients. NGS has a higher mutation detection rate than SS, and can detect compound variants and genes with lower mutation frequency that are not detected by SS.
Collapse
Affiliation(s)
- Dilinazi Abulaiti
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Niluopaer Tuerxun
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Huan Wang
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Patiguli Abulizi
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Fang Zhao
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Yang Liu
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| | - Jianping Hao
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Hematologic Disease Institute, Urumqi, China
| |
Collapse
|
2
|
Mohammed SA, Al Kady LM, Boghdadi GS, Dawa GA, Gerges MA, El Shafai MA. Immunogenetic Relationship of HLA-G 14 bp Insertion/Deletion Polymorphism and Toll-Like Receptor 9 with Systemic Lupus Erythematosus in Egyptian Patients: A Case-Control Study. Int J Gen Med 2022; 15:661-674. [PMID: 35082516 PMCID: PMC8785136 DOI: 10.2147/ijgm.s344376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/10/2022] [Indexed: 12/18/2022] Open
Abstract
Introduction The level of expression of the immunoregulatory human leukocyte antigen-G (HLA-G) has been suggested to play a role in the immunopathogenesis of systemic lupus erythematosus (SLE). A 14 bp insertion/deletion (ins/del) polymorphism in the 3ˊuntranslated region of HLA-G gene may influence the level of expression. The role of Toll-like receptor 9 (TLR9) in the pathogenesis of SLE has been highlighted. Data among Egyptian patients are quite limited. Purpose To detect the association of HLA-G 14 bp ins/del gene polymorphism with the susceptibility to SLE and to correlate TLR9 serum level with disease activity among Egyptian patients. Patients and Methods A case-control study that included 102 SLE female patients and 102 healthy matched volunteers as controls was carried out. Disease activity in patients was determined using the modified Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). HLA-G 14 bp ins/del genotype was detected by polymerase chain reaction (PCR). TLR9 serum level was estimated using enzyme-linked immunosorbent assay (ELISA) technique. Results The ins/ins genotype was significantly increased among SLE patients compared to healthy subjects (58.8% vs 9.8%; odds ratio [OR] = 11.79, P < 0.001). The 14 bp ins allele was significantly more frequent in SLE patients than in healthy subjects (65.7% vs 27.9%, respectively) and significantly associated with an increased risk of SLE (OR 4.94, P < 0.001). The mean TLR9 serum level showed a significant increase in SLE patients compared to healthy subjects (397.04±137.86 vs 195.22±45.14 ng/L, p < 0.001) and was significantly associated with disease activity as well as to patients’ HLA-G genotypes (p < 0.001). Conclusion Among Egyptian population, HLA-G 14 bp ins/ins homozygous genotype and ins allele may constitute a potential risk for SLE susceptibility, while TLR9 serum level is significantly associated with disease activity.
Collapse
Affiliation(s)
- Shrouk A Mohammed
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Laila M Al Kady
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ghada S Boghdadi
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ghada A Dawa
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Marian A Gerges
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
- Correspondence: Marian A Gerges, Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt, Tel +20 1003819530, Email
| | - Maher A El Shafai
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| |
Collapse
|
3
|
Rodrigues JKF, Crovella S, Celerino da Silva R. The HLA-G 14 bp allele frequency in different populations: A global meta-analysis. Meta Gene 2020. [DOI: 10.1016/j.mgene.2019.100624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
|
4
|
Shankarkumar U, Shankarkumar A, Chedda Z, Ghosh K. Role of 14-bp deletion/insertion polymorphism in exon 8 of the HLA-G gene in recurrent spontaneous abortion patients. J Hum Reprod Sci 2012; 4:143-6. [PMID: 22346082 PMCID: PMC3276949 DOI: 10.4103/0974-1208.92289] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Revised: 06/04/2011] [Accepted: 09/21/2011] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND: Human leukocyte antigen (HLA)-G belongs to the nonclassical Class I major histocompatibility complex, and is predominantly and specifically found on the extravillous cytotrophoblast cells of the placenta. HLA-G has been postulated as an important immunotolerant molecule in maintaining successful pregnancy and maternal tolerance of the semiallogenic fetus. Recent reports indicate that the 14-bp deletion/insertion polymorphism in exon 8 of the 3’UTR region of the HLA-G gene influences the HLA-G mRNA stability and isoform splicing patterns, thus modulating the levels of HLA-G expression. AIM: The aim was to study the 14-bp deletion/insertion polymorphism in exon 8 of the 3’UTR region of the HLA-G gene. MATERIALS AND METHODS: A total of 50 women with unexplained three or more recurrent spontaneous abortions (RSAs) and 41 normal healthy control women who have had normal pregnancies and were genotyped for the 14-bp deletion/insertion polymorphism were genotyped for the 14-bp deletion/insertion polymorphism by polymerase chain reaction for exon 8-specific primers RESULTS: It was found that the 14-bp allele deletion frequency was lower in patients (67%) versus controls (73%), while 14-bp allele insertion was higher among patients (33%) versus controls (9%). Similarly, the homozygous deletion halotype was higher among the controls (80.48%); the heterozygous insertion deletion haplotype (34%) and homozygous insertion haplotype (16%) were higher in RSA patients. The HLA haplotype HLA A*02:11_B*40:06:01:01 was increased among RSA women compared to controls. CONCLUSION: Our results suggest that 14-bp deletion/insertion polymorphisms might have importance in the outcome of pregnancy and the 14-bp deletion polymorphism in exon 8 of the HLA-G gene may be important from an evolutionary perspective of successful pregnancy.
Collapse
Affiliation(s)
- U Shankarkumar
- Department of HLA and Transplantation, National Institute of Immunohaematology, KEM Hospital Campus, Parel, Mumbai, India
| | | | | | | |
Collapse
|
5
|
Tao Y, Chen J, Yao Y, Shi L, Lin K, Huang X, Dong Z, Chu J, Shi L. Distribution of HLA-G 14-bp insertion/deletion polymorphism in six Chinese ethnic groups. Int J Immunogenet 2012; 40:93-8. [PMID: 22726302 DOI: 10.1111/j.1744-313x.2012.01137.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 04/09/2012] [Accepted: 05/24/2012] [Indexed: 11/28/2022]
Abstract
Recently, a 14-bp insertion/deletion polymorphism (+14 bp/-14 bp) in exon 8 of the Human leucocyte antigen-G (HLA-G) gene has been studied extensively because this polymorphism has been associated with HLA-G mRNA stability and could influence HLA-G mRNA expression. We investigated the distribution of the 14-bp insertion/deletion polymorphism in six different Chinese ethnic groups (Bulang, Wa, Hani, Jinuo, Maonan and Zhuang), which originated from three major ancient tribes (Di-Qiang, Baipu and Baiyue) in China. Comparison of the 14-bp insertion frequency in the six groups with other Chinese groups showed marked variation among the three ancient tribes, Di-Qing (0.490-0.534), Baipu (0.470-0.609) and Baiyue (0.280-0.344). Furthermore, the frequencies of the 14-bp insertion were similar in groups that came from the same ancient tribe, which indicated that the individuals who share the 14-bp insertion have the most probably inherited the 14-bp element from a common ancestor. In addition, an intra-tribal comparison of the 14-bp insertion/deletion frequencies between the descendants of the ancient ancestral tribes suggests that population histories or some environmental effects, such as founder effect or isolation, might also influence the distribution.
Collapse
Affiliation(s)
- Y Tao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Gonzalez A, Alegre E, Torres MI, Díaz-Lagares A, Lorite P, Palomeque T, Arroyo A. Evaluation of HLA-G5 plasmatic levels during pregnancy and relationship with the 14-bp polymorphism. Am J Reprod Immunol 2011; 64:367-74. [PMID: 20482523 DOI: 10.1111/j.1600-0897.2010.00855.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
PROBLEM Plasmatic HLA-G levels increase during pregnancy, but the contribution of each different isoform has not been elucidated yet. METHOD OF STUDY HLA-G5 was analyzed by ELISA in 19 controls, 79 women in the first 8 weeks of pregnancy and in nine women monthly until delivery. Genotyping for the 14-bp polymorphism was performed by PCR amplification of exon 8. RESULTS HLA-G5 was detected in plasma from 80% of pregnant women. The levels did not change during pregnancy, and there were no differences compared to control non-pregnant women. There was a high interindividual variation that was maintained throughout the pregnancy. The presence of +14-bp allele was associated with HLA-G5 positivity. Pregnant women who were heterozygotic to 14-bp polymorphism had significantly higher levels of HLA-G5 compared to -14 bp/-14-bp homozygotic. CONCLUSION Plasmatic HLA-G5 levels do not change during pregnancy and its concentration depends on 14-bp polymorphism.
Collapse
Affiliation(s)
- Alvaro Gonzalez
- Department of Biochemistry, University Clinic of Navarra, Pamplona, Spain.
| | | | | | | | | | | | | |
Collapse
|
7
|
Di Cristofaro J, Julie DC, Buhler S, Frassati C, Basire A, Galicher V, Baier C, Essautier A, Regnier A, Granier T, Lepfoundzou AD, Chiaroni J, Picard C. Linkage disequilibrium between HLA-G*0104 and HLA-E*0103 alleles in Tswa Pygmies. TISSUE ANTIGENS 2011; 77:193-200. [PMID: 21299523 DOI: 10.1111/j.1399-0039.2010.01599.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nonclassical human leukocyte antigen (HLA)-G and -E loci are separated by approximately 660 kb on the short arm of chromosome 6. Interestingly, some functional and expression characteristics are relatively identical or associated for both molecules. For example, expression of HLA-E on the cell surface has been linked to preferential binding of nonameric leader peptides derived from the signal sequence of HLA-G. It has been suggested that these two molecules act synergistically in modulating susceptibility to infectious or chronic inflammatory diseases. A possible explanation for these observations is that HLA-E and HLA-G are evolving under analogous selective pressures and have functions that place them under selective regimes differing from classical HLA genes. The purpose of this study was to investigate the consistency of this hypothesis based on the characterization of the molecular polymorphism of these two genes and their linkage disequilibrium (LD) in three populations, i.e. Southeastern French (n = 57), Teke Congolese (n = 84) and Tswa Pygmies (n = 74). Allelic frequencies observed for HLA-G and HLA-E and for 14-bp ins/del polymorphism in the three populations were similar to those observed in the literature for populations from corresponding geographic areas. Only one of the recently described HLA-G polymorphisms (HLA-G*01:07-01:16) was found, i.e. HLA-G*01:15 in one individual from Congo. We showed that two haplotypes in Tswa Pygmies, i.e. HLA-G*01:04-E*01:03:01 and G*01:04-E*01:01, exhibited highly significant positive and negative D' values respectively. Although these LD could have functional implications, it is more likely because of the genetic drift as the two other populations did not display any significant LD.
Collapse
Affiliation(s)
- J Di Cristofaro
- UMR 6578 (Anthropobiologie Bioculturelle), Université de la Méditerranée, CNRS, EFS, Marseille, France
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Analysis of the 14 bp insertion/deletion polymorphism in human leukocyte antigen- G gene in Chinese Dai and Han ethnic groups in Yunnan Province. YI CHUAN = HEREDITAS 2010; 32:577-82. [DOI: 10.3724/sp.j.1005.2010.00577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Gan LH, Pan YQ, Xu DP, Li M, Lin A, Yan WH. Polymorphism of human CD1a, CD1d, and CD1e in exon 2 in Chinese Han and She ethnic populations. ACTA ACUST UNITED AC 2010; 75:691-5. [DOI: 10.1111/j.1399-0039.2010.01443.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Lin A, Li M, Xu DP, Zhang WG, Yan WH. Ethnic variation of the HLA-G*0105N allele in two Chinese populations. ACTA ACUST UNITED AC 2009; 73:270-4. [DOI: 10.1111/j.1399-0039.2008.01196.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|