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Labonte MJ, Yang D, Zhang W, Wilson PM, Gerger A, Bohanes PO, Ning Y, Benhaim L, El-Khoueiry R, Nagarwala YM, Kemner AM, Pishvaian MJ, Hsieh RK, Gladkov O, Urba S, Rha SY, Sakaeva D, Iqbal S, El-Khoueiry AB, Lenz H. Use of MTHFR A1298C polymorphism to predict response in a phase II international clinical trial of patients with advanced gastric (GC) or gastroesophageal junction (GEJ) adenocarcinoma treated with first-line lapatinib plus capecitabine. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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102
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Yang D, Benhaim L, Zhang W, Bohanes PO, Ning Y, Gerger A, Labonte MJ, Groshen SG, El-Khoueiry AB, Iqbal S, Lenz H. Gender and cause-specific survival in patients with stage III colon cancer: A SEER study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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103
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Patel SB, Gojo I, Tidwell M, Ning Y, Zhao XF, Sausville EA, Baer MR. Subdural hematomas in patients with Philadelphia chromosome-positive acute lymphoblastic leukemia receiving imatinib mesylate in conjunction with multi-agent chemotherapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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104
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Ladner RD, Zhang W, Labonte MJ, Yang D, Ning Y, Gerger A, Bohanes PO, Winder T, El-Khoueiry AB, Iqbal S, Petasis N, Lenz H. Prediction of tumor recurrence in stage II colon cancer through genetic variants in formyl peptide receptor 2 (FPR2). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.3604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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105
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Gerger A, Zhang W, Yang D, Bohanes PO, Ning Y, Winder T, Labonte MJ, Wilson PM, Benhaim L, El-Khoueiry R, Absenger G, El-Khoueiry AB, Iqbal S, Lenz H. Angiogenesis gene polymorphisms and clinical outcome of metastatic colorectal cancer treated with first-line bevacizumab and oxaliplatin-based chemotherapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.3592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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106
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Benhaim L, Gerger A, Zhang W, Yang D, Bohanes PO, Ning Y, Winder T, Labonte MJ, Wilson PM, El-Khoueiry R, El-Khoueiry AB, Iqbal S, Lenz H. Cancer stem cell gene variants associated with colon cancer recurrence. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.3612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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107
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Bean MK, Mazzeo SE, Stern M, Evans R, Bryan D, Ning Y, Wickham EP, Laver J. Six-month dietary changes in ethnically diverse, obese adolescents participating in a multidisciplinary weight management program. Clin Pediatr (Phila) 2011; 50:408-16. [PMID: 21224253 PMCID: PMC3683394 DOI: 10.1177/0009922810393497] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study's objective was to examine dietary and metabolic changes in obese adolescents who completed 6 months of participation in an outpatient multidisciplinary weight management program (N = 67). Participants (75% African American, 66% female, mean age = 13.7 years) completed 24-hour dietary recalls and underwent measurement of anthropometrics and fasting blood lipid parameters at baseline and after 6 months of participation. General linear models suggested that participants significantly reduced total energy, total fat, saturated fat, carbohydrate, sodium, and sugar intakes, and increased fiber and fruit and vegetable intake (P < .05). Gender-stratified models showed differences in fruit/vegetable intake, percentage calories from fat, sodium, and dietary cholesterol intakes by gender. Significant improvements in body mass index percentile and lipid profiles were also found, lending objective support to the dietary changes participants made. Findings suggest that participation in this multidisciplinary treatment helped participants make behaviorally based dietary changes, which were associated with improved dietary intakes and health status.
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108
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Winder T, Bohanes P, Zhang W, Yang D, Power DG, Ning Y, Gerger A, Wilson PM, Tang LH, Shah M, Lee AS, Lenz HJ. GRP78 promoter polymorphism rs391957 as potential predictor for clinical outcome in gastric and colorectal cancer patients. Ann Oncol 2011; 22:2431-2439. [PMID: 21382870 DOI: 10.1093/annonc/mdq771] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Recently, the analysis of gastric and colorectal tumor specimens determined that 78-kiloDalton glucose-regulated protein (GRP78), an endoplasmic reticulum chaperone, up-regulation serves as an efficient mechanism protecting cells against apoptosis and can confer drug resistance. We tested whether functional polymorphisms within the GRP78 gene are related to clinical outcome in gastric and colorectal cancer (CRC) patients. PATIENTS AND METHODS Blood samples of 234 stage II/III CRC patients at the University of Southern California (USC) and formalin-fixed paraffin-embedded tissues of 137 patients with localized gastric adenocarcinoma (GA) at USC and Memorial Sloan-Kettering Cancer Centers were obtained. GRP78 polymorphisms analyzed on germline DNA were correlated with clinical outcome using univariate and multivariate analyses. RESULTS GA patients with the combined GRP78 rs391957 C/T and T/T genotype were at higher risk for tumor recurrence and death [hazard ratio (HR) 2.61; P < 0.001 and HR 3.17; P < 0.001, respectively], than those with C/C. These findings were subsequently tested in a CRC cohort where patients with the homozygous T/T genotype were at highest risk for tumor recurrence (HR 2.61; P = 0.015). The results remained significant after adjusting for clinicopathologic determinants. CONCLUSION These data provide the first evidence that the GRP78 rs391957 polymorphism can predict clinical outcome in localized GA and locally advanced CRC patients.
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109
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Gerger A, Bohanes PO, Yang D, Winder T, Ning Y, Labonte MJ, Mauro DJ, Langer C, Rowinsky EK, Lenz H. Human epidermal growth factor receptor-2 (HER2) Ile655Val single nucleotide polymorphism (SNP) is associated with gender-specific outcome in patients with metastatic colorectal cancer (mCRC) treated with cetuximab in a phase II study (IMCL-0144). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
441 Background: HER2 pathway is an important growth-regulatory pathway in many malignancies. In-vitro data from various cell lines suggest that activation of HER family members predicts resistance to cetuximab. HER2 also interacts with hormone receptors and estrogen, promoting tumor proliferation in breast cancer models. We previously demonstrated that polymorphisms in HER1 and ER-β were associated with gender-specific survival in colorectal cancer patients. HER2 Ile655Val (rs1136201) SNP's functionality was shown in breast cell lines with Val-expressing cells exhibiting increase growth capacity. We tested whether this SNP may predict gender-specific clinical outcome in mCRC treated with cetuximab. Methods: Tissue samples of 130 patients, 64 males and 66 females, with mCRC, enrolled in a phase II trial of cetuximab monotherapy were analyzed. Genomic DNA was extracted from FFPE tumor tissue. K-Ras mutation status and HER2 Ile655Val (rs1136201) SNP were analyzed using direct DNA-sequencing and PCR-RFLP. 23 out of 130 patients were still alive at the time of data analysis with a median follow-up of 12.3 months. Results: Females with the low activity HER2 Ile/Ile (n = 41) genotype had better progression-free survival (PFS) when compared to Ile/Val or Val/Val (n = 21) genotypes (median PFS = 2.4 vs. 1.2 months; HR = 2.06 (95% CI: 1.08-3.92), p = 0.0281) based on the multivariable Cox regression model adjusting for KRAS, performance status and severity of skin rash and stratified by race. In KRAS wild-type females, 15 patients out of 20 (75%) with HER2 Ile/Ile genotype responded or had stable disease when compared to 4 out of 12 (33%) Ile/Val or Val/Val genotypes (exact conditional test p = 0.143). In males, HER2 Ile655Val SNP is not associated with outcome. HER2 Ile655Val SNP is not associated with gender-specific overall survival. Conclusions: Our data suggest that HER2 Ile655Val SNP may identify females with mCRC likely to experience better outcome when treated with cetuximab. Prospective biomarker-embedded clinical trials are needed to validate our results. [Table: see text]
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110
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Zhang W, Labonte MJ, Yang D, Ning Y, Gerger A, Bohanes PO, Winder T, El-Khoueiry AB, Iqbal S, Lenz H. Use of genetic variants in formyl peptide receptor 2 (FPR2) to predict tumor recurrence in stage II colon cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
408 Background: The formyl peptide receptor (FPR) is a G-protein-coupled receptor (GPCR) that mediates chemotaxis of phagocytic leucocytes induced by bacterial and host-derived chemotactic peptides. Recent studies found that it is selectively expressed in highly malignant gliomas and contributes to tumor growth and angiogenesis by mediating tumor cell chemotaxis, proliferation and production of chemokines and VEGF. Previously we demonstrated that polymorphisms in the VEGF pathway predict tumor recurrence in adjuvant colon cancer. Here we tested the hypothesis that two genetic variants in the FPR2 gene (rs17834679 and rs17694990) may predict tumor recurrence in a cohort of adjuvant colon cancer patients. Methods: Between 1992 and 2007, blood samples were obtained from 234 adjuvant colon caner patients (109 with stage II and 125 with stage III) at the USC medical facilities. Genomic DNA was extracted from peripheral blood and two potentially functional genotypes (rs17834679 and rs17694990) within the FPR2 gene were determined utilizing the PCR-RFLP technique. The median follow-up was 4.4 years (range: 0.3- 16.8). Ninety of 234 patients (38.5%) developed tumor recurrence with a 3-year probability of 0.34 ± 0.05. Results: In multivariable Cox proportional hazards regression analysis, FPR2 polymorphism rs17834679 was significantly associated with time to tumor recurrence (TTR) in stage II colon cancer (adjusted P = 0.027). Patients with CC genotype were at greatest risk of developing tumor recurrence (adjusted hazard ratio [HR]: 2.819 [95%CI: 1.127-7.051]) compared to those with GC and GG genotypes. In the dominant inheritance model, patients with any G allele had longer TTR (16.8 years+, median was not reached) compared to those with CC genotype (median TTR 5.4 years [95%CI: 3.2-10.7]; p=0.007, log-rank test). There are no significantly associations between FPR2 polymorphisms and TTR in stage III colon cancer. Conclusions: Polymorphisms in the FPR2 gene may serve as molecular markers for tumor recurrence in stage II colon cancer, indicating that the analysis of genetic variants of FPR2 may help to identify patient subgroups at high risk for tumor recurrence. No significant financial relationships to disclose.
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111
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Wang H, Bodenstein M, Duenges B, Ganatti S, Boehme S, Ning Y, Roehrig B, Markstaller K. Ventilator-Associated Lung Injury Superposed to Oleic Acid Infusion or Surfactant Depletion: Histopathological Characteristics of Two Porcine Models of Acute Lung Injury. Eur Surg Res 2010; 45:121-33. [DOI: 10.1159/000318599] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Accepted: 07/02/2010] [Indexed: 11/19/2022]
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112
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Zhang W, Winder T, Ning Y, Pohl A, Yang D, Kahn M, Lurje G, LaBonte MJ, Wilson PM, Gordon MA, Hu-Lieskovan S, Mauro DJ, Langer C, Rowinsky EK, Lenz HJ. A let-7 microRNA-binding site polymorphism in 3'-untranslated region of KRAS gene predicts response in wild-type KRAS patients with metastatic colorectal cancer treated with cetuximab monotherapy. Ann Oncol 2010. [PMID: 20603437 DOI: 10.1093/annonc/mdg315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
PURPOSE recent studies have found that KRAS mutations predict resistance to monoclonal antibodies targeting the epidermal growth factor receptor in metastatic colorectal cancer (mCRC). A polymorphism in a let-7 microRNA complementary site (lcs6) in the KRAS 3' untranslated region (UTR) is associated with an increased cancer risk in non-small-cell lung cancer and reduced overall survival (OS) in oral cancers. We tested the hypothesis whether this polymorphism may be associated with clinical outcome in KRAS wild-type (KRASwt) mCRC patients treated with cetuximab monotherapy. PATIENTS AND METHODS the presence of KRAS let-7 lcs6 polymorphism was evaluated in 130 mCRC patients who were enrolled in a phase II study of cetuximab monotherapy (IMCL-0144). Genomic DNA was extracted from dissected formalin-fixed paraffin-embedded tumor tissue, KRAS mutation status and polymorphism were assessed using direct sequencing and PCR restriction fragment length polymorphism technique. RESULTS KRAS let-7 lcs6 polymorphism was found to be related to object response rate (ORR) in mCRC patients whose tumors had KRASwt. The 12 KRASwt patients harboring at least a variant G allele (TG or GG) had a 42% ORR compared with a 9% ORR in 55 KRASwt patients with let-7 lcs6 TT genotype (P = 0.02, Fisher's exact test). KRASwt patients with TG/GG genotypes had trend of longer median progression-free survival (3.9 versus 1.3 months) and OS (10.7 versus 6.4 months) compared to those with TT genotypes. CONCLUSIONS these results are the first to indicate that the KRAS 3'UTR polymorphism may predict for cetuximab responsiveness in KRASwt mCRC patients, which warrants validation in other clinical trials.
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113
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Zhang W, Winder T, Ning Y, Pohl A, Yang D, Kahn M, Lurje G, LaBonte MJ, Wilson PM, Gordon MA, Hu-Lieskovan S, Mauro DJ, Langer C, Rowinsky EK, Lenz HJ. A let-7 microRNA-binding site polymorphism in 3'-untranslated region of KRAS gene predicts response in wild-type KRAS patients with metastatic colorectal cancer treated with cetuximab monotherapy. Ann Oncol 2010; 22:104-109. [PMID: 20603437 DOI: 10.1093/annonc/mdq315] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
PURPOSE recent studies have found that KRAS mutations predict resistance to monoclonal antibodies targeting the epidermal growth factor receptor in metastatic colorectal cancer (mCRC). A polymorphism in a let-7 microRNA complementary site (lcs6) in the KRAS 3' untranslated region (UTR) is associated with an increased cancer risk in non-small-cell lung cancer and reduced overall survival (OS) in oral cancers. We tested the hypothesis whether this polymorphism may be associated with clinical outcome in KRAS wild-type (KRASwt) mCRC patients treated with cetuximab monotherapy. PATIENTS AND METHODS the presence of KRAS let-7 lcs6 polymorphism was evaluated in 130 mCRC patients who were enrolled in a phase II study of cetuximab monotherapy (IMCL-0144). Genomic DNA was extracted from dissected formalin-fixed paraffin-embedded tumor tissue, KRAS mutation status and polymorphism were assessed using direct sequencing and PCR restriction fragment length polymorphism technique. RESULTS KRAS let-7 lcs6 polymorphism was found to be related to object response rate (ORR) in mCRC patients whose tumors had KRASwt. The 12 KRASwt patients harboring at least a variant G allele (TG or GG) had a 42% ORR compared with a 9% ORR in 55 KRASwt patients with let-7 lcs6 TT genotype (P = 0.02, Fisher's exact test). KRASwt patients with TG/GG genotypes had trend of longer median progression-free survival (3.9 versus 1.3 months) and OS (10.7 versus 6.4 months) compared to those with TT genotypes. CONCLUSIONS these results are the first to indicate that the KRAS 3'UTR polymorphism may predict for cetuximab responsiveness in KRASwt mCRC patients, which warrants validation in other clinical trials.
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Bohanes PO, Winder T, Power DG, Yang D, Zhang W, Ning Y, Lurje G, Tang LH, Shah MA, Lenz H. Association of GRP78 gene polymorphism rs391957 with tumor recurrence in gastric and colon cancer patients. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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115
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Lenz H, Zhang W, Yang D, El-Khoueiry AB, Ning Y, Pohl A, Bohanes PO, Danenberg KD, Winder T. Association of GRP78 polymorphisms with response and TTP in patients with mCRC treated with FOLFOX/BV or XELOX/BV. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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116
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Winder T, Zhang W, Yang D, Ning Y, Bohanes PO, Hu-Lieskovan S, Mauro DJ, Langer C, Rowinsky EK, Lenz H. Use of germ-line polymorphisms in genes involved in the IGF pathway to predict efficacy of cetuximab independent of K-ras in mCRC patients (IMCL-0144). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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117
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Bierenbaum JM, Ning Y, Tidwell M, Gojo I, Baer MR. Race and overall survival in acute myeloid leukemia. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.6570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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118
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Ning Y, Winder T, Power DG, Yang D, Zhang W, Bohanes PO, Lurje G, Tang LH, Shah MA, Lenz H. Association of germline polymorphisms in genes involved in the CD44 pathway and clinical outcome in localized gastric adenocarcinoma (GA). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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119
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Yang D, Zhang W, Winder T, Bohanes PO, Ning Y, Danenberg KD, El-Khoueiry AB, Wilson PM, Labonte MJ, Lenz H. Correlations of mRNA expression levels of genes in the targeted pathways and Kras mutation status in patients with colorectal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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120
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Iqbal S, El-Khoueiry AB, Yang D, Cole S, Boswell W, Shriki J, Ning Y, Agafitei RD, Menendez X, Lenz H. A phase I study of celecoxib (C) and patupilone (EPO906) in patients (pts) with metastatic colorectal cancer (mCRC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.2533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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121
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Lin EY, Bohanes PO, Yang D, Lurje G, Winder T, Ning Y, Ho E, Tang LH, Shah MA, Lenz H. Association of human epidermal growth factor receptor 2 (HER2) Ile655Val polymorphism (plrm) and gender-specific time to tumor recurrence (TTR) in patients (pts) with localized gastric adenocarcinoma (GA). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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122
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Wilson PM, Winder T, Power DG, Yang D, Zhang W, Ning Y, Bohanes PO, Tang LH, Shah MA, Lenz H. Association of germline polymorphism in the SPARC gene and tumor recurrence in patients with resected gastric cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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123
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Labonte MJ, Yang D, Zhang W, Wilson PM, Ladner RD, Winder T, Bohanes PO, Ning Y, Lenz H. Correlation of cyclin D1, A870G, polymorphism, and clinical outcome in patients with HER2-positive, metastatic breast cancer treated with lapatinib plus capecitabine. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.1015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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124
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Pohl A, Azuma M, Zhang W, Yang D, Ning Y, Winder T, Danenberg K, Lenz HJ. Pharmacogenetic profiling of Aurora kinase B is associated with overall survival in metastatic colorectal cancer. THE PHARMACOGENOMICS JOURNAL 2010; 11:93-9. [PMID: 20368716 DOI: 10.1038/tpj.2010.18] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aurora kinases are conserved eukaryotic serine-threonine kinases, which serve as key regulators of mammalian mitosis. Several studies revealed a distinct correlation between inaccurate chromosome segregation, leading to chromosomal number instability, cancer progression and poor outcome. The aim of this study was to investigate the correlation of Aurora kinases A (AURKA) and B (AURKB) with overall survival (OS) by quantifying gene expression analysis and evaluation of single-nucleotide polymorphisms (SNPs) in human colorectal cancer samples and assessing the associations with clinicopathological features. We evaluated intratumoral gene expression levels and SNPs of AURKA and -B from 41 patients with metastatic colorectal cancer (mCRC). Patients with a high expression level of AURKB (>1.28) lived significantly shorter (n=11, median OS=6.4 months, 95% confidence interval (CI): 3.0-14.5 months) compared with patients with a low expression level (≤ 1.28) (n=30, median OS=18.4 months, 95% CI: 14.7-27.8 months, P=0.026, Wald's test). Patients harboring any G-allele in AURKB 885A>G showed a significantly decreased OS (P=0.05, log-rank test). We did not find any associations with clinicopathological variables and AURKA gene expression levels. Our results suggest a potential role for AURKB inhibition in patients with mCRC; thereby supporting its potential role as a target in mCRC.
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125
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Ning Y, Wang L, Giovannucci EL. A quantitative analysis of body mass index and colorectal cancer: findings from 56 observational studies. Obes Rev 2010; 11:19-30. [PMID: 19538439 DOI: 10.1111/j.1467-789x.2009.00613.x] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
To perform a systematic review of studies reporting on the association between body mass index (BMI) and the risk of colorectal cancer, we conducted a meta-analysis and meta-regression analysis. The identified 56 studies were conducted among 7 213 335 individuals including 93 812 cases. Compared with BMI < 23.0 kg m(-2), BMI of 23.0-24.9, 25.0-27.4, 27.5-29.9 and > or = 30.0 kg m(-2) were associated with 14%, 19%, 24% and 41% increased risks, respectively. Asians and premenopausal women had sharply increased risk from BMI < 23 kg m(-2) to general 'normal' range (23-25 kg m(-2)). Each 5 kg m(-2) increment was associated with 18% increased risk. Meta-regression analysis indicated that the association was stronger for colon than rectal cancer (P < 0.001), for men than women (P < 0.001), for self-reported BMI than directly measured BMI (P < 0.001), and for studies adjusting for physical activity than not adjusting (P < 0.001). The variation of the reported risk estimates for the association can be partly explained by cancer site, sex, women menopausal status, BMI assessment and adjustment of confounding variables.
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