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Shen Y, Zhong Y, Lai C, Wang T, Shaw C. SU-E-I-02: Effects of Projection View Sampling On CT Numbers and Noise Level in Cone Beam Breast CT. Med Phys 2013. [DOI: 10.1118/1.4814102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wei Y, Jin Z, Shen G, Zhao X, Yang W, Zhong Y, Wang J. Effects of Intensive Antihypertensive Treatment on Chinese Hypertensive Patients Older Than 70 Years. J Clin Hypertens (Greenwich) 2013; 15:420-7. [PMID: 23730991 DOI: 10.1111/jch.12094] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/17/2013] [Accepted: 02/21/2013] [Indexed: 11/30/2022]
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Zhu S, Zhang H, Dong Y, Xu Z, Chen D, Wang L, Gan Y, Wang F, Wang Y, Xing X, Hu S, Li Z, Long L, Liu L, Zhong Y. The correlation between T helper type 17 cells and clinical characters in Chinese paediatric patients with chronic hepatitis B. Clin Exp Immunol 2013; 171:307-12. [PMID: 23379437 DOI: 10.1111/cei.12028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2012] [Indexed: 12/15/2022] Open
Abstract
Interleukin (IL)-17-mediated immune response has been shown to play a critical role in inflammation-associated disease. However, its role in the pathogenesis of chronic hepatitis B virus (HBV) in paediatric patients remains unknown. We investigated the frequency of T helper type 17 (Th17) cells and evaluated the association between the Th17 and clinical characters in paediatric patients with chronic hepatitis B (CHB). The frequency of Th17 cells was detected by flow cytometry analyses from 65 paediatric patients with CHB and nine healthy controls. The degree of hepatic inflammation was graded using the histological activity index (HAI). Compared with healthy controls, the frequency of Th17 cells in peripheral blood was significantly higher in paediatric patients with CHB. The proportion of Th17 cells was higher in the patients with higher HAI score (G2-G3) compared to those subjects with lower HAI score (G0-G1), but the frequency of Th17 cells had no correlation with serum HBV DNA loads or alanine aminotransferase levels. Compared with the younger age group (age 1-6 years), Th17 cell frequency was higher in the older age group (age 7-18 years). Peripheral Th17 cell frequency is associated closely with inflammation activity of liver tissues in paediatric patients with CHB.
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Zhong Y, Xu J, Deng M, Liu B, Zhang F, Yuan Y, Yang X, Xu R. Generation of a human bone marrow-derived mesenchymal stem cell line expressing and secreting high levels of bioactive -melanocyte-stimulating hormone. J Biochem 2013; 153:371-379. [DOI: 10.1093/jb/mvt003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Hannan EL, Zhong Y, Wu C, Walford G, Holmes DR, Jacobs AK, Stamato NJ, Venditti FJ, Sharma S, Fergus I, King SB. Everolimus-eluting stents and zotarolimus-eluting stents for percutaneous coronary interventions. Catheter Cardiovasc Interv 2013; 81:1097-105. [DOI: 10.1002/ccd.24512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 06/04/2012] [Indexed: 11/11/2022]
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Elmay W, Prima F, Gloriant T, Bolle B, Zhong Y, Patoor E, Laheurte P. Effects of thermomechanical process on the microstructure and mechanical properties of a fully martensitic titanium-based biomedical alloy. J Mech Behav Biomed Mater 2013; 18:47-56. [DOI: 10.1016/j.jmbbm.2012.10.018] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 10/02/2012] [Accepted: 10/06/2012] [Indexed: 11/26/2022]
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Zhong Y, Xue M, Zhao X, Yuan J, Liu X, Huang J, Zhao Z, Li H, Xu Y. Substituted indolin-2-ones as p90 ribosomal S6 protein kinase 2 (RSK2) inhibitors: Molecular docking simulation and structure-activity relationship analysis. Bioorg Med Chem 2013; 21:1724-34. [PMID: 23434140 DOI: 10.1016/j.bmc.2013.01.047] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 01/21/2013] [Accepted: 01/23/2013] [Indexed: 11/26/2022]
Abstract
A series of novel indolin-2-ones inhibitors against p90 ribosomal S6 protein kinase 2 (RSK2) were designed and synthesized and their structure-activity relationship (SAR) was studied. The most potent inhibitor, compound 3s, exhibited potent inhibition against RSK2 with an IC50 value of 0.5 μM and presented a satisfactory selectivity against 23 kinases. The interactions of these inhibitors with RSK2 were investigated based on the proposed binding poses with molecular docking simulation. Four compounds and six compounds exhibited moderate anti-proliferation activities against PC 3 cells and MCF-7 cells, respectively.
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Xue M, Cao X, Zhong Y, Kuang D, Liu X, Zhao Z, Li H. Insulin-like growth factor-1 receptor (IGF-1R) kinase inhibitors in cancer therapy: advances and perspectives. Curr Pharm Des 2012; 18:2901-13. [PMID: 22571659 DOI: 10.2174/138161212800672723] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Accepted: 02/15/2012] [Indexed: 11/22/2022]
Abstract
The insulin-like growth factors (IGF) and their receptors play pivotal roles in cellular signaling transduction and thus regulate cell growth, differentiation, apoptosis, transformation and other important physiological progresses. The insulin-like growth factor 1 receptor (IGF-1R) mainly engages in the Ras/mitogen-activated protein kinase (MAPK) pathway and the phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) pathway, and also forms cross-talk with the epidermal growth factor receptor (EGFR) pathway. Currently, it draws more attention since its overexpression has been demonstrated in various human cancers, such as colorectal cancer, breast cancer, prostate cancer and lung tumors, thus the strategy targeting the IGF-1R would be promising in treatment of these cancers. There are already dozens of agents developed for the inhibition of IGF-1R, which are categorized into monoclonal antibodies, small molecule inhibitors and so on. While in this review, small molecule inhibitors would be the focus for detailed discussion. Herein, we updated previously reported research papers and reviews in this field and summarized developments of small molecule inhibitors up to 2011. Finally, we proposed the application of network pharmacology methods to reconsider the clinical use of inhibitors with concomitant IR inhibition or other kinases inhibition, hoping that more optimal combinations would be obtained for cancer therapy.
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Nishiura H, Mizumoto K, Ejima K, Zhong Y, Cowling B, Omori R. Incubation period as part of the case definition of severe respiratory illness caused by a novel coronavirus. Euro Surveill 2012; 17:20296. [PMID: 23098822 PMCID: PMC3722063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
Non-specific symptoms of acute respiratory viral infections make it difficult for many countries without ongoing transmission of a novel coronavirus to rule out other possibilities including influenza before isolating imported febrile individuals with a possible exposure history. The incubation period helps differential diagnosis, and up to two days is suggestive of influenza. It is worth including the incubation period in the case definition of novel coronavirus infection.
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Nishiura H, Mizumoto K, Ejima M, Zhong Y, Cowling BJ, Omori R. Incubation period as part of the case definition of severe respiratory illness caused by a novel coronavirus. Euro Surveill 2012. [DOI: 10.2807/ese.17.42.20296-en] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Non-specific symptoms of acute respiratory viral infections make it difficult for many countries without ongoing transmission of a novel coronavirus to rule out other possibilities including influenza before isolating imported febrile individuals with a possible exposure history. The incubation period helps differential diagnosis, and up to two days is suggestive of influenza. It is worth including the incubation period in the case definition of novel coronavirus infection.
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Ye L, Zhu D, Ren L, Wei Y, Pan X, Zhong Y, Liang L, Xu B, Liu T, Xu J. Tumor Response and Secondary Resectability of Colorectal Liver Metastases Following Cetuximab with Chemotherapy: A Randomized, Controlled Study. Ann Oncol 2012. [DOI: 10.1093/annonc/mds556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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237
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Shen X, Xu Y, Zhou C, Zhong Y, Zeng Y, Ding C. The application of modified multiple displacement amplification combined with short tandem repeats polymorphism in 23 preimplantation genetic diagnosis cycles. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Xu J, Zhong Y, Zhu D, Wei Y, Ren L. Survival Analysis of 1,061 Patients with Synchronous Colorectal Hepatic Metastases. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33202-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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239
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Feng K, Pan C, Zhang G, Luo T, Zhao Z, Chen Y, Feng Y, Ye X, Hu G, He K, Niu R, Li Z, Wang P, Xiang B, Zhang L, Wang Q, Zhao F, Cao Q, Wang F, Yuan T, Zheng G, Liu Y, Zhong Y, Zhang M. Progress on design and R&D for helium-cooled ceramic breeder TBM in China. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2012.02.098] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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240
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Zhong Y, You Z, Liu X, Wang T, Shen Y, Lai C, Shaw C. SU-C-218-01: Comparison of Single-View and Dual-View Digital Chest Tomosynthesis. Med Phys 2012. [DOI: 10.1118/1.4734649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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241
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Lai C, Shen Y, Zhong Y, Whitman G, Yang W, Wang T, Shaw C. TU-E-217BCD-08: Extraction and Insertion of Tumor Masses in Cone Beam Breast CT Images. Med Phys 2012; 39:3915. [DOI: 10.1118/1.4735980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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242
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Shen Y, Zhong Y, Lai C, Wang T, Shaw C. TU-E-217BCD-06: Cone Beam Breast CT with a High Resolution Flat Panel Detector-Improvement of Calcification Visibility. Med Phys 2012; 39:3915. [DOI: 10.1118/1.4735978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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243
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Li W, Zhong Y, Vassil A, Xia P. SU-E-J-104: Evaluation of Atlas-Based Auto-Segmentation on Daily In-Room CT for Prostate Cancer. Med Phys 2012; 39:3676-3976. [PMID: 28519808 DOI: 10.1118/1.4734940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Anatomy delineation is a major time consuming task to correct for inter-fractional changes in anatomy. Atlas-based auto-segmentation (ABAS) was developed to expedite this process. This study aims to evaluate the performance of ABAS applying to high quality verification CT-imaging acquired using a CT-on-rail system for prostate cancer. METHODS The prostate, rectum and bladder were manually contoured for seven prostate cancer patients. For each patient, three patient specific atlases were generated consisting of one, four and seven prior image and contour sets. ABAS was applied using these atlases for the last seven daily CT images of each patient. The auto- and manual-contours were compared both geometrically and dosimetrically. The reproducibility of the observation was validated by an experienced radiation oncologist performing the same procedure. The performance of ABAS with patient and non-patient specific atlases were also evaluated on 21 image sets. P<0.05 was considered statistical significant for two-tailed paired student t-test. RESULTS Contours obtained from ABAS agreed well with the manual ones. With 1-image set atlas, the OI and DSC for the bladder were greater than 96% and 91%, respectively. Both indices were above 81% for rectum and prostate. The consistencies significantly improved by including 4 image sets in the atlas, while a further increase of atlas size to 7 did not show obvious benefits. Dose coverage for the auto- and manual-contours was similar for all organs. Similar results were obtained by the second observer. Compared with non-patient specific atlas, patient specific atlas yielded more accurate contours. The time for ABAS and manual contouring was ∼2 min and ∼20 min per image set, respectively. CONCLUSIONS With diagnostic quality verification images, ABAS can provide fast and accurate delineations for prostate cancer on a daily basis. The inclusion of more than one CT set in atlas improves the contouring results.
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Zhong Y, Wu Y, Li C, Tang J, Wang X, Ren G, Carr A, Pérez R, Guo W. N-Glycolyl GM3 ganglioside immunoexpression in oral mucosal melanomas of Chinese. Oral Dis 2012; 18:741-7. [DOI: 10.1111/j.1601-0825.2012.01939.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Longtine MS, Chen B, Odibo AO, Zhong Y, Nelson DM. Villous trophoblast apoptosis is elevated and restricted to cytotrophoblasts in pregnancies complicated by preeclampsia, IUGR, or preeclampsia with IUGR. Placenta 2012. [PMID: 22341340 DOI: 10.1016/j.placenta.2012.01.017.villous] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Human placental villi are surfaced by an outer multinucleated syncytiotrophoblast and underlying mononucleated cytotrophoblasts. Conflicting data have attributed one, or the other, of these villous trophoblast phenotypes to undergo enhanced apoptosis in complicated pregnancies, compared to term, normotensive pregnancies. We use high-resolution confocal microscopy after co-staining for E-cadherin, as a trophoblast plasma membrane marker, and for the cleavage products of cytokeratin 18 and PARP1, as markers for caspase-mediated apoptosis, to distinguish between apoptotic cytotrophoblasts and apoptosis within the syncytiotrophoblast. We test the hypothesis that increased caspase-mediated apoptosis occurs in villi of placentas derived from pregnancies complicated by preeclampsia, intrauterine growth restriction (IUGR), or both. We find significantly elevated apoptosis in villous cytotrophoblasts from women with preeclampsia and/or IUGR, compared to term, normotensive pregnancies. Apoptosis of cytotrophoblasts in villi from complicated pregnancies appears to progress similarly to what we found previously for apoptotic cytotrophoblasts in villi from in term, normotensive pregnancies. Notably, caspase-mediated apoptosis was not detectable in regions with intact syncytiotrophoblast, suggesting strong repression of apoptosis in this trophoblast phenotype in vivo. We suggest that the elevated apoptosis in cytotrophoblasts in preeclampsia contributes to the placental dysfunction characteristic of this disorder. We also propose that repression of apoptosis in the syncytiotrophoblast is important to prevent apoptosis sweeping throughout the syncytium, which would result in widespread death of this essential interface for maternal-fetal exchange.
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Li Z, Yu CP, Zhong Y, Liu TJ, Huang QD, Zhao XH, Huang H, Tu H, Jiang S, Zhang Y, Liu JH, Song LB. Sam68 expression and cytoplasmic localization is correlated with lymph node metastasis as well as prognosis in patients with early-stage cervical cancer. Ann Oncol 2012; 23:638-646. [PMID: 21700735 DOI: 10.1093/annonc/mdr290] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND This study was aimed at investigating the role and molecular mechanism of Sam68 in cervical cancer lymph node metastasis. MATERIALS AND METHODS Sam68 expression profile was detected by quantitative polymerase chain reaction, western blotting and immunohistochemical staining. Short hairpin RNA interfering approach was employed to suppress endogenous Sam68 expression in cervical cancer cells to determine its role in metastasis and the possible mechanism. RESULTS Sam68 expression in cervical cancer was significantly up-regulated at both messenger RNA and protein levels compared with that in normal cervical tissues. The high expression level of Sam68 and its cytoplasmic localization were significantly associated with risk factors including pelvic lymph node metastasis (P < 0.001), and served as independent prognostic factors for predicting shortening of the overall survival time and disease-free survival time in patients with early-stage cervical cancer. Moreover, down-regulation of Sam68 in cervical cancer cells remarkably inhibited cellular motility and invasion. In addition, down-regulation of Sam68 reversed epithelial-mesenchymal transition through inhibiting the Akt/ GSK-3β/Snail pathway. CONCLUSION This study demonstrated that Sam68 could induce cervical cancer lymph node metastasis through regulating epithelial-mesenchymal transition, and Sam68 expression profile possessed the potential to serve as predictors of pelvic lymph node metastasis in cervical cancer patients.
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Zhong Y, Feng J, Chen B, Cheng L, Li Y, Qian J, Ding J, Gao F, Xia G. Signal transducer and activator of transcription 3 (STAT3) gene polymorphisms are associated with treatment outcomes in acute myeloid leukemia. Int J Lab Hematol 2012; 34:383-9. [PMID: 22376160 DOI: 10.1111/j.1751-553x.2012.01406.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
INTRODUCTION In the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway, STAT3 is one of the most prominent prognosis factors for cancer and leukemia. STAT3 activation might promote cellular transformation and therefore have an important role in human tumors. This study aimed to investigate the relationship between STAT3 polymorphisms and treatment response of acute myeloid leukemia (AML) in the Chinese population. METHODS Three single-nucleotide polymorphisms (SNPs) were tested in 130 patients with AML. Genomic DNA was isolated from peripheral blood and assayed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). RESULTS The results of response to chemotherapy showed that there were strong relationships between unfavorable cytogenetics, partial remission (and even no remission), and GG genotype frequency in rs9909659 (P = 0.01 and 0.03). Patients younger than 45 years were associated significantly with GA/AA genotype (P = 0.01). CONCLUSIONS The results of this study suggest that the GG genotype in rs9909659 might confer increased resistance to standard chemotherapy.
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D'Souza G, Burk RD, Zhong Y, Minkoff H, Massad LS, Xue X, Watts DH, Anastos K, Palefsky JM, Levine AM, Colie C, Castle PE, Strickler HD. Cervicovaginal human papillomavirus (HPV)-infection before and after hysterectomy: evidence of different tissue tropism for oncogenic and nononcogenic HPV types in a cohort of HIV-positive and HIV-negative women. Int J Cancer 2012; 131:1472-8. [PMID: 22120980 DOI: 10.1002/ijc.27363] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 09/26/2011] [Indexed: 11/10/2022]
Abstract
Human papillomavirus (HPV) is detected in nearly all cervical cancers and approximately half of vaginal cancers. However, vaginal cancer is an order of magnitude less common than cervical cancer, not only in the general population but also among women with HIV/AIDS. It is interesting therefore that recent studies found that HPV was common in both normal vaginal and cervical tissue, with higher prevalence of nononcogenic HPV types in the vagina. In our investigation, we prospectively examined HPV infection in 86 HIV-positive and 17 HIV-negative women who underwent hysterectomy during follow-up in a longitudinal cohort. Cervicovaginal lavage specimens were obtained semi-annually and tested for HPV DNA by polymerase chain reaction. To address possible selection biases associated with having a hysterectomy, subjects acted as their own comparison group--before versus after hysterectomy. The average HPV prevalence was higher in HIV-positive than HIV-negative women both before (59% vs. 12%; p < 0.001) and after hysterectomy (56% vs. 6%; p < 0.001). Multivariate random effects models (within-individual comparisons) demonstrated significantly lower HPV prevalence [odds ratio (OR) = 0.71; 95% confidence interval (CI) = 0.59-0.85) after hysterectomy. The association of HPV prevalence with hysterectomy was similar among HIV-positive and HIV-negative women. However, hysterectomy had greater effects on oncogenic (OR = 0.48; 95% CI = 0.35-0.66) than nononcogenic HPV types (OR = 0.89; 95% CI = 0.71-1.11; P(interaction) = 0.002). Overall, we observed greater reductions in oncogenic than nononcogenic HPV prevalence after hysterectomy. If correct, these data could suggest that oncogenic HPV have greater tropism for cervical compared to vaginal epithelium, consistent with the lower incidence of vaginal than cervical cancer.
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Sunkara SK, Seshadri S, El-Toukhy T, Khalaf Y, Schuh-Huerta SM, Johnson NA, Rosen MP, Sternfeld B, Cedars MI, Reijo Pera RA, Groendahl M, Vikesa J, Borup R, Yding Andersen C, Ernst E, Lykke-Hartmann K, Liu W, Zhong Y, Zou X, Xi WY, Gong F, Fan LQ, Lu GX, Lehert P, Rongieres C, Pirrello O, Ohl J, Bettahar K, Nisand I, Smit JG, Kasius JC, Eijkemans MJC, Campo R, Broekmans FJM. SESSION 03: FEMALE INFERTILITY 1. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhong Y, Wu J, Ma R, Cao H, Wang Z, Ding J, Cheng L, Feng J, Chen B. Association of Janus kinase 2 (JAK2) polymorphisms with acute leukemia susceptibility. Int J Lab Hematol 2011; 34:248-53. [PMID: 22168550 DOI: 10.1111/j.1751-553x.2011.01386.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Aberrant activation of Janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathway leads to deregulated proliferation, differentiation, or apoptosis of normal cells. One of the members of this family, JAK2, plays a very important role in metabolizing carcinogens and medications. This study aimed to detect whether any association exists between genetic polymorphisms in JAK2 gene and individual susceptibility to acute leukemia. METHODS A case-control study in a Chinese population with 260 acute leukemia cases and 280 healthy controls matched by age, gender, and ethnicity. Genomic DNA was assayed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF) with five genetic polymorphisms in JAK2 gene. RESULTS The distributions of rs56118985 GA genotype in the acute leukemia and acute myeloid leukemia (AML) groups were both slightly different when compared with the control group (P = 0.049 and P = 0.045). The frequencies of rs2230724 AA and GA genotypes in the acute leukemia and its subtypes were all significantly higher than that in the control group (P < 0.001). This suggested that subjects with A allele of rs2230724 were susceptible to acute leukemia and its subtypes. In addition, A allele of rs2230724 should be an important genetic determinant for acute leukemia and AML. CONCLUSION The results indicate that the risk of acute leukemia might be associated with JAK2 polymorphisms.
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