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Su Z, Li YY, Ma HM, Zhang J, Du ML. [Characterization of ovarian adrenal rest tumors in children and adolescent females with congenital adrenal hyperplasia due to 21-hydroxylase deficiency]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2016; 54:414-8. [PMID: 27256226 DOI: 10.3760/cma.j.issn.0578-1310.2016.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To summarize the characterization of ovarian adrenal rest tumors (OART) in children and adolescent females with congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21-OHD). METHOD We have diagnosed 4 cases of CAH 21-OHD with OART in the recent 5 years in pediatric endocrinology unit of the first affiliated hospital of Sun Yat-Sen University. Clinical characterizations were summarized, including symptoms, growth patterns and bone age advancements, serum steroid concentrations, imaging results and the follow-up data. RESULT The 4 cases of OART accounted for 2.5 % of the CAH 21-OHD girls, which was much lower than the detection rate, 29.5%, of testicular ART in our patient group during the same period. The 4 cases included 3 salt wasters and 1 with simple virilizm. OART were diagnosed at the age of 8.9 years, 15.8 years, 21.4 years and 9.3 years, respectively. Before the diagnosis of OART, their daily hydrocortisone doses reached 16 mg/(m(2)·d)to 24 mg/(m(2)·d). The patients presented with deteriorated acne, deepened voice, amenorrhea (2 cases), accelerated growth and advanced bone age, ΔBA/ΔCA reached 1.2(during GnRHa treatment)and 2.0. Their serum adrenal steroids increased significantly and hyperplasia of adrenal glands were found in all patients. The diagnosis could be confirmed before the operation in only 1 case. The diagnosis could not be made until the planned sub-total adrenalectomy in the other 3 cases. The follow-up periods of OART were 4.8, 4.7, 3.8 and 2.7 years, respectively. Removal of OART resulted in symptoms relief at least partialy and lowered daily hydrocortisone doses, 14 to 19 mg/(m(2)·d). CONCLUSION The detection rate of OART was much lower than testicular ART. Before the diagnosis of OART, the patients presented with deteriorated virilescence, accelerated growth and advanced bone age, elevated serum adrenal steroids and hyperplasia of adrenal glands. Removal of the OART resulted in symptoms relief at least partialy.
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Su Z, Mamalui M, Li Z. SU-F-T-564: 3 Year Experience of Treatment Plan QualityAssurance for Vero SBRT Patients. Med Phys 2016. [DOI: 10.1118/1.4956749] [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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Mamalui M, Su Z, Flampouri S, Li Z. SU-F-P-31: Dosimetric Effects of Roll and Pitch Corrections Using Robotic Table. Med Phys 2016. [DOI: 10.1118/1.4955738] [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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Chen L, Huang Z, Yang B, Cai B, Su Z, Wang L. AB0010 Association of Gene Polymorphisms in ETS-1 with Rankl in Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zhu X, Zhu Y, Liu W, Yang G, Su Z, Tang L, Xu Y. Improved image-quality consistency in coronary CT angiography using a test-bolus-based individually tailored contrast medium injection protocol. Clin Radiol 2016; 71:1113-9. [PMID: 27170220 DOI: 10.1016/j.crad.2016.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/20/2016] [Accepted: 04/01/2016] [Indexed: 11/20/2022]
Abstract
AIM To develop and validate a test bolus (TB)-based quantitative model to create an individualised contrast medium injection protocol for use at coronary computed tomography angiography (CCTA) to improve patient-to-patient uniformity of intracoronary attenuation. MATERIALS AND METHODS In the model-building phase, 175 patients who underwent CCTA using a traditional contrast medium injection protocol were recruited. A personalised injection equation was proposed according to the relationship between aortic enhancement and the haemodynamic parameters obtained from the TB. In the model-validation phase, a target aortic enhancement of 350 HU was set. Two hundred and fifteen additional CCTA examinations were performed using the proposed personalised injection model. Comparisons of inter-individual variability between the traditional and the proposed personalised injection protocol were performed. RESULTS In the model-building phase, a high positive correlation between aortic enhancement and the haemodynamic parameters obtained from the TB was found. As a result, a personalised injection equation was determined using linear regression. In the model-validation phase, the average aortic enhancement was 350.5 HU, without significant differences from the preset level. Using the TB-based personalised injection protocol, inter-individual variability of aortic enhancement was significantly reduced (71.8 versus 38.9 HU, p<0.001) and patients who were scanned at 100 kVp had a reduction in the average contrast medium flow rate from 4.1 to 3.2 ml/s (p<0.001). CONCLUSIONS The proposed TB-based injection protocol can achieve a desired preset and stable aortic enhancement.
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Su Z, Gauvin D, Wetter J, Salte K, Gerstein C, Leys L, Huang S, Shaughn B, Waegell W, Edlmayer R, Scott V, Honore P, McGaraughty S, Gauld S. 530 Comparison of IL-23 models of psoriasiform dermatitis in mice. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Su Z, Duan Z, Pan W, Wu C, Jia Y, Han B, Li C. Predicting extracapsular spread of head and neck cancers using different imaging techniques: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2016; 45:413-21. [DOI: 10.1016/j.ijom.2015.11.021] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 11/22/2015] [Accepted: 11/27/2015] [Indexed: 02/06/2023]
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Su Z, Yang Z, Xie L, DeWitt JP, Chen Y. Cancer therapy in the necroptosis era. Cell Death Differ 2016; 23:748-56. [PMID: 26915291 PMCID: PMC4832112 DOI: 10.1038/cdd.2016.8] [Citation(s) in RCA: 223] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 12/21/2015] [Accepted: 01/03/2016] [Indexed: 12/14/2022] Open
Abstract
Necroptosis is a caspase-independent form of regulated cell death executed by the receptor-interacting protein kinase 1 (RIP1), RIP3, and mixed lineage kinase domain-like protein (MLKL). Recently, necroptosis-based cancer therapy has been proposed to be a novel strategy for antitumor treatment. However, a big controversy exists on whether this type of therapy is feasible or just a conceptual model. Proponents believe that because necroptosis and apoptosis use distinct molecular pathways, triggering necroptosis could be an alternative way to eradicate apoptosis-resistant cancer cells. This hypothesis has been preliminarily validated by recent studies. However, some skeptics doubt this strategy because of the intrinsic or acquired defects of necroptotic machinery observed in many cancer cells. Moreover, two other concerns are whether or not necroptosis inducers are selective in killing cancer cells without disturbing the normal cells and whether it will lead to inflammatory diseases. In this review, we summarize current studies surrounding this controversy on necroptosis-based antitumor research and discuss the advantages, potential issues, and countermeasures of this novel therapy.
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Henderson R, Hoppe B, Bryant C, Mendenhall W, Nichols R, Li Z, Su Z, Morris C, Costa J, Mendenhall N, Williams C. Five-Year Outcomes From a Prospective Trial of Image Guided Accelerated Hypofractionated Proton Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bryant C, Mendenhall W, Hoppe B, Henderson R, Nichols R, Su Z, Williams C, Morris C, Li Z, Mendenhall N. Biochemical Outcomes for Patients With Intermediate-Risk Prostate Cancer Treated With Proton Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pan L, Ma X, Wen B, Su Z, Zheng X, Liu Y, Li H, Chen Y, Wang J, Lu F, Qu J, Hou L. Microphthalmia-associated transcription factor/T-box factor-2 axis acts through Cyclin D1 to regulate melanocyte proliferation. Cell Prolif 2015; 48:631-42. [PMID: 26486273 DOI: 10.1111/cpr.12227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 08/07/2015] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES Control of cell proliferation is critical for accurate cell differentiation and tissue formation, during development and regeneration. Here, we have analysed the role of microphthalmia-associated transcription factor MITF and its direct target, T-box factor TBX2, in regulating proliferation of mammalian neural crest-derived melanocytes. MATERIALS AND METHODS Immunohistochemistry was used to examine spatial and temporal expression of TBX2 in melanocytes in vivo. RNAi and cell proliferation analysis were used to investigate functional roles of TBX2. Furthermore, quantitative RT-PCR, western blot analysis and flow cytometry were used to further scrutinize molecular mechanisms underlying TBX2-dependent cell proliferation. RESULTS TBX2 was found to be co-expressed with MITF in melanocytes of mouse hair follicles. Specific Tbx2 knockdown in primary neural crest cells led to inhibition MITF-positive melanoblast proliferation. Tbx2 knockdown in melan-a cells led to reduction in Cyclin D1 expression and G1-phase cell cycle arrest. TBX2 directly activated Ccnd1 transcription by binding to a specific sequence in the Ccnd1 promoter, and the defect in cell proliferation could be rescued partially by overexpression of Cyclin D1 in Tbx2 knockdown melanocytes. CONCLUSIONS Results suggest that the Mitf-Tbx2-Cyclin D1 pathway played an important role in regulation of melanocyte proliferation, and provided novel insights into the complex physiology of melanocytes.
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Saef S, Carr C, Bush J, Bartman M, Sendor A, Spearman J, Zhao W, Su Z, Zhang J, Arnaud C, Obeid J. 248 Can Data From a Health Information Exchange Be Used to Describe Frequent Emergency Department Users Within a Region? Ann Emerg Med 2015. [DOI: 10.1016/j.annemergmed.2015.07.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Meng S, Su Z, Liu Z, Wang N, Wang Z. Rac1 contributes to cerebral ischemia reperfusion-induced injury in mice by regulation of Notch2. Neuroscience 2015; 306:100-14. [DOI: 10.1016/j.neuroscience.2015.08.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/07/2015] [Accepted: 08/06/2015] [Indexed: 11/16/2022]
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Zhang X, Liu R, Su Z, Zhang Y, Zhang W, Liu X, Wang F, Guo Y, Li C, Hao J. Immunohistochemical Study of Expression of Sohlh1 and Sohlh2 in Normal Adult Human Tissues. PLoS One 2015; 10:e0137431. [PMID: 26375665 PMCID: PMC4574203 DOI: 10.1371/journal.pone.0137431] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 08/17/2015] [Indexed: 12/24/2022] Open
Abstract
The expression pattern of Sohlh1 (spermatogenesis and oogenesis specific basic helix-loop-helix 1) and Sohlh2 in mice has been reported in previous studies. Sohlh1 and Sohlh2 are specifically expressed in spermatogonia, prespermatogonia in male mice and oocytes of primordial and primary follicles in female mice. In this report, we studied the expression pattern of Sohlh1 and Sohlh2 in human adult tissues. Immunohistochemical staining of Sohlh1 and Sohlh2 was performed in 5 samples of normal ovaries and testes, respectively. The results revealed that Sohlh genes are not only expressed in oocytes and spermatogonia, but also in granular cells, theca cells, Sertoli cells and Leydig cells, and in smooth muscles of blood vessel walls. To further investigate the expression of Sohlh genes in other adult human tissues, we collected representative normal adult tissues developed from three embryonic germ layers. Compared with the expression in mice, Sohlhs exhibited a much more extensive expression pattern in human tissues. Sohlhs were detected in testis, ovary and epithelia developed from embryonic endoderm, ectoderm and tissues developed from embryonic mesoderm. Sohlh signals were found in spermatogonia, Sertoli cells and also Leydig cells in testis, while in ovary, the expression was mainly in oocytes of primordial and primary follicles, granular cells and theca cells of secondary follicles. Compared with Sohlh2, the expression of Sohlh1 was stronger and more extensive. Our study explored the expression of Sohlh genes in human tissues and might provide insights for functional studies of Sohlh genes.
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Su Z, Zhao J, Rong Z, Geng W, Wang Z. MiR-451, a potential prognostic biomarker and tumor suppressor for gastric cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:9154-9160. [PMID: 26464660 PMCID: PMC4583892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND The expression of microRNA-451 (miR-451) and its association with clinical pathological factors in GC remain still unclear. The purpose of this study was to investigate if miR-451 is a potential prognostic biomarker and tumor suppressor for gastric cancer. METHODS Real-time quantitative RT-PCR (qRT-PCR) was applied to detect miR-451 expression in GC cell lines and primary tumor and paired non-cancerous tissues. The association of miR-451 expression with clinicopathological factors and prognosis was statistically analyzed. RESULTS We found that miR-451 showed decreased expression in GC tissues and cell lines, and its down-regulation tended to be positively correlated with lymphatic metastasis, clinical staging and shorter overall survival of patients. In addition, forced expression of miR-451 in BGC-823 and MKN-45 cells did not impact on cell proliferation, but did reduce migration and invasion rates in BGC-823 cells. CONCLUSION Our findings indicated that miR-451 may act as a novel prognostic marker and potential therapeutic target in human GC.
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Kong F, Zheng D, She P, Ni P, Zhu H, Xu H, Su Z. Porphyromonas gingivalis B cell Antigen Epitope Vaccine, pIRES-ragB'-mGITRL, Promoted RagB-Specific Antibody Production and Tfh Cells Expansion. Scand J Immunol 2015; 81:476-82. [PMID: 25689343 DOI: 10.1111/sji.12281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 01/27/2015] [Indexed: 11/30/2022]
Abstract
The outer membrane protein RagB is one of the major virulence factors of Porphyromonas gingivalis (P. gingivalis). To prevent periodontitis and associated systemic diseases induced by P. gingivalis, we built B cell antigen epitope vaccine characterized by pIRES-ragB'-mGITRL to induce a protective immune responses. The B cell antigen epitope and scrambled peptide of ragB were predicted, cloned into pIRES and constructed pIRES-ragB', pIRES-scrambled epitopes and pIRES-ragB'-mGITRL. pIRES-ragB'-mGITRL was transfected into COS-7 cells. Subsequently, the 6-week-old female BALB/c mice were challenged by P. gingivalis following three time immunization by pIRES, pIRES-ragB', pIRES-scrambled epitopes and pIRES-ragB'-mGITRL. The levels of RagB-specific antibody in the serum and Tfh cells in the spleen were measured by ELISA and flow cytometry, respectively. And higher levels of RagB-specific IgG were produced in the immunized mice with pIRES-ragB'-mGITRL. Additionally, the number of Tfh cells was also expanded and lesions were diminished in pIRES-ragB'-mGITRL mice comparing with control groups. Our results clearly demonstrated that P. gingivalis B cell antigen epitope vaccine, pIRES-ragB'-mGITRL, could induce protective immune responses. Furthermore, our data also indicated that pIRES-ragB'-mGITRL was a potential therapeutic vaccine against P. gingivalis.
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Amoah BP, Yang H, Zhang P, Su Z, Xu H. Immunopathogenesis of Myocarditis: The Interplay Between Cardiac Fibroblast Cells, Dendritic Cells, Macrophages and CD4+T Cells. Scand J Immunol 2015; 82:1-9. [DOI: 10.1111/sji.12298] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 02/21/2015] [Accepted: 03/14/2015] [Indexed: 02/06/2023]
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Abstract
Obesity resistance is an increasingly popular area of study in academia, although the factors that lead to the occurrence of obesity resistance remain unclear. In this review, we discuss the currently known causes of obesity resistance. By comparing the differences between obesity-resistant individuals and obesity-susceptible individuals, researchers have identified the characteristics of obesity-resistant individuals. The primary approach has been to breed rats and mice with a high-fat diet and to compare the differences between obesity-resistant and obesity-susceptible individuals. The characterized differences have included gastrointestinal fat absorption, appetite, physical activity, fat storage, and fat consumption. Considerably more research is needed into the mechanisms of obesity resistance that could be used to lose weight among human subjects. However, there are few ongoing obesity resistance studies. Due to the relatively slow rate of development in this field, greater efforts must be applied in this area.
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Su Z, Dagan R, Li Z. SU-E-T-686: SBRT 4-Dimensional Treatment Planning for Vero Dynamic Tumor Tracking Lung Patients. Med Phys 2015. [DOI: 10.1118/1.4925049] [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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Mamalui-Hunter M, Su Z, Li Z. SU-E-T-183: Clinical Quality Assurance Workflow for Dynamic Tumor Tracking Radiation Dose Delivery. Med Phys 2015. [DOI: 10.1118/1.4924544] [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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Su Z, Yang R, Zhang W, Xu L, Zhong Y, Yin Y, Cen J, DeWitt JP, Wei Q. The synergistic interaction between the calcineurin B subunit and IFN-γ enhances macrophage antitumor activity. Cell Death Dis 2015; 6:e1740. [PMID: 25950470 PMCID: PMC4669720 DOI: 10.1038/cddis.2015.92] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/14/2015] [Accepted: 02/23/2015] [Indexed: 02/07/2023]
Abstract
Macrophages are involved in tumor growth and progression. They infiltrate into tumors and cause inflammation, which creates a microenvironment favoring tumor growth and metastasis. However, certain stimuli may induce macrophages to act as tumor terminators. Here we report that the calcineurin B subunit (CnB) synergizes with IFN-γ to make macrophages highly cytotoxic to cancer cells. Furthermore, CnB and IFN-γ act synergistically to polarize mouse tumor-associated macrophages, as well as human monocyte-derived macrophages to an M1-like phenotype. This synergy is mediated by the crosstalk between CnB-engaged integrin αM-p38 MAPK signaling and IFN-γ-initiated p38/PKC-δ/Jak2 signaling. Interestingly, the signal transducer and activator of transcription 1 (STAT1) is a key factor that orchestrates the synergy of CnB and IFN-γ, and the phosphorylation status at Ser727 and Tyr701 of STAT1 is directly regulated by CnB and IFN-γ.
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OuYang PY, Zhang LN, Lan XW, Xie C, Zhang WW, Wang QX, Su Z, Tang J, Xie FY. The significant survival advantage of female sex in nasopharyngeal carcinoma: a propensity-matched analysis. Br J Cancer 2015; 112:1554-61. [PMID: 25742485 PMCID: PMC4453682 DOI: 10.1038/bjc.2015.70] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/07/2015] [Accepted: 01/27/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Whether females have better survival than males in nasopharyngeal carcinoma is barely acknowledged and the exact explanations remain unknown. METHODS Overall, 5929 patients receiving treatment between January 2005 and December 2010 were separately stratified by stage into early and advanced stage groups, and by age into premenopausal (⩽45 years), menopausal (46-54 years) and postmenopausal (⩾55 years) groups. Matched males and females in each group were identified using the propensity score matching method. Differences in disease-free survival (DSS), overall survival (OS), distant metastasis-free survival (DMFS) and locoregional relapse-free survival (LRFS) were estimated by the Kaplan-Meier method and Cox regression model. RESULTS Overall, 398, 923, 744, 319 and 313 pairs of males and females were matched in early stage, advanced stage, premenopausal, menopausal and postmenopausal group, respectively. Females showed significant advantage over males across all end points in both early and advanced stage groups (P⩽0.042). However, this advantage persisted at premenopausal age (P⩽0.042), declined during menopause (DMFS, P=0.021; DSS, P=0.100; OS, P=0.693; LRFS, P=0.330) and totally disappeared at postmenopausal age (P⩾0.344). CONCLUSIONS Sex significantly affects NPC survival, with a definite female advantage regardless of tumour stage. Intrinsic biologic traits appear to be the exact explanation according to the declining magnitude of sex effect with age.
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Rong J, Yin J, Su Z. Natural antisense RNAs are involved in the regulation of CD45 expression in autoimmune diseases. Lupus 2015; 24:235-9. [PMID: 25381328 DOI: 10.1177/0961203314558856] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
CD45 is a transmembrane protein tyrosine phosphatase that is specifically expressed in hematopoietic cells and can initiate signal transduction via the dephosphorylation of tyrosine. Alternatively spliced transcript variants of this gene encode distinct isoforms, which indicate different functional states of CD45. Among these variants, CD45RO, which contains neither exon 4, 5, or 6, is over-expressed in lymphocytes in autoimmune diseases, including systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, and type I diabetes. The CD45 RO serves as a marker of the immune response activity and lymphocyte development. Previous studies have indicated that exon splicing is generally correlated with local hypermethylated DNA and acetylated histone modification, while autoimmune diseases are commonly associated with global hypomethylation and histone deacetylation in lymphocytes. Thus, the question arises of how exons 4, 5, and 6 of CD45RO are excluded under the status of global DNA hypomethylation and histone deacetylation in these autoimmune diseases. On the basis of the analyses of the context sequence of CD45 and its natural antisense RNA in GenBank, we proposed that the long noncoding RNA encoded by the natural antisense gene of CD45 contributes to the expressional regulation of the CD45RO splicing variant via recruitment of DNA methyltransferase and histone modification modulators specific to the sense gene CD45; thus, it is associated with the over-expression of CD45RO and the functional regulation of lymphocytes in the pathogenic development of autoimmune diseases.
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Su Z. Normal Convergence for Random Partitions with Multiplicative Measures. THEORY OF PROBABILITY AND ITS APPLICATIONS 2015. [DOI: 10.1137/s0040585x9798693x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lorente D, Mateo J, Templeton AJ, Zafeiriou Z, Bianchini D, Ferraldeschi R, Bahl A, Shen L, Su Z, Sartor O, de Bono JS. Baseline neutrophil-lymphocyte ratio (NLR) is associated with survival and response to treatment with second-line chemotherapy for advanced prostate cancer independent of baseline steroid use. Ann Oncol 2014; 26:750-755. [PMID: 25538172 DOI: 10.1093/annonc/mdu587] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The neutrophil-lymphocyte ratio (NLR), proposed as an indicator of cancer-related inflammation, has known prognostic value in prostate cancer. We examine its association with survival (OS) and response in patients treated with second-line chemotherapy. METHODS We analysed patients with metastatic castration-resistant prostate cancer (mCRPC) treated in the TROPIC trial, evaluating cabazitaxel versus mitoxantrone. Cox regression models were used to investigate the association of baseline NLR (BLNLR) with OS and the significance of a change in NLR count with treatment. Logistic regression models were used to determine the association of BLNLR counts with prostate specific antigen (PSA) and RECIST responses. The optimal NLR cut-off was established based on the concordance index of different values. RESULTS Data from 755, 654 and 405 patients was available for OS, PSA and RECIST response analysis respectively. Median OS was 14.0 months [95% confidence interval (CI) 13.2-14.8]. Median NLR was 2.9 (IQR: 1.9-5.1). BLNLR was associated with survival (HR 1.5, 95% CI 1.1-2.1, P = 0.011) in multivariable analysis (MVA) independently of variables included in the Halabi nomogram, treatment arm and corticosteroid use. The optimal cut-off for a dichotomous NLR was selected at 3.0 based on its higher c-index related to survival. BLNLR ≥3.0 was associated with lower PSA response (40.1% versus 59.9%; P < 0.001) and RECIST response (7.7% versus 15.6%, P = 0.022) in MVA. Conversion from high (≥3) to low (<3) NLR was associated with improved survival (HR 0.66; 95% CI 0.51-0.85; P = 0.001) and higher PSA response rates (66.4% versus 33.6%; P = 0.000). Use of corticosteroids at baseline did not modify the association between NLR and survival. CONCLUSIONS NLR is a valid prognostic biomarker in CRPC and is associated with survival, PSA and RECIST responses in patients treated with second-line chemotherapy. Changes in NLR counts with treatment may indicate benefit. NLR prognostic value is independent of prior use of corticosteroids. CLINICALTRIALSGOV NCT00417079.
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