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  • American Association for Cancer Research (AACR)  (646)
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  • American Association for Cancer Research (AACR)  (646)
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  • 1
    In: Clinical Cancer Research, American Association for Cancer Research (AACR), Vol. 17, No. 8 ( 2011-04-15), p. 2149-2158
    Abstract: Purpose: To assess whether polymorphisms of genes related to estrogen biosynthesis and metabolism are associated with EGFR mutations. Experimental Design: We studied 617 patients with lung adenocarcinoma, including 302 never-smoking women. On the basis of multiple candidate genes approach, the effects of polymorphisms of CYP17, CYP19A1, ERα, and COMT in association with the occurrence of EGFR mutations were evaluated using logistic regression analysis. Results: In female never-smokers, significant associations with EGFR L858R mutation were found for the tetranucleotide (TTTA)n repeats in CYP19A1 (odds ratio, 2.6; 95%CI, 1.2–5.7 for 1 or 2 alleles with (TTTA)n repeats & gt;7 compared with both alleles with (TTTA)n repeats ≤7), and the rs2234693 in ERα (OR, 2.1; 95% CI, 1.1–4.0 for C/T and C/C genotypes compared with T/T genotype). The C/C genotype (vs. T/T genotype) of ERα was significantly associated with EGFR L858R mutation (OR, 3.0; 95% CI, 1.1–8.1), in-frame deletion (OR, 2.9; 95% CI, 1.1–7.6) and other mutations (OR, 4.3; 95% CI, 1.3–14.0). The genotype of COMT rs4680 was significantly associated with EGFR L858R mutation in female and male never-smokers showing OR's (95% CI) of 1.8 (1.0–3.2) and 3.6 (1.1–11.3), respectively, for genotypes G/A and G/G compared with genotype A/A. The number of risk alleles of CYP17, CYP19A1, ERα, and COMT was associated with an increasing OR of EGFR L858R mutation in female never-smokers (P = 0.0002 for trend). Conclusions: The L858R mutation of EGFR is associated with polymorphisms of genes related to estrogen biosynthesis and metabolism in never-smoking female lung adenocarcinoma patients. Clin Cancer Res; 17(8); 2149–58. ©2011 AACR.
    Type of Medium: Online Resource
    ISSN: 1078-0432 , 1557-3265
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2011
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  • 2
    In: Clinical Cancer Research, American Association for Cancer Research (AACR), Vol. 28, No. 19 ( 2022-10-03), p. 4232-4239
    Abstract: To compare the efficacy and safety of high-dose vitamin C plus FOLFOX ± bevacizumab versus FOLFOX ± bevacizumab as first-line treatment in patients with metastatic colorectal cancer (mCRC). Patients and Methods: Between 2017 and 2019, histologically confirmed patients with mCRC (n = 442) with normal glucose-6-phosphate dehydrogenase status and no prior treatment for metastatic disease were randomized (1:1) into a control (FOLFOX ± bevacizumab) and an experimental [high-dose vitamin C (1.5 g/kg/d, intravenously for 3 hours from D1 to D3) plus FOLFOX ± bevacizumab] group. Randomization was based on the primary tumor location and bevacizumab prescription. Results: The progression-free survival (PFS) of the experimental group was not superior to the control group [median PFS, 8.6 vs. 8.3 months; HR, 0.86; 95% confidence interval (CI), 0.70–1.05; P = 0.1]. The objective response rate (ORR) and overall survival (OS) of the experimental and control groups were similar (ORR, 44.3% vs. 42.1%; P = 0.9; median OS, 20.7 vs. 19.7 months; P = 0.7). Grade 3 or higher treatment-related adverse events occurred in 33.5% and 30.3% of patients in the experimental and control groups, respectively. In prespecified subgroup analyses, patients with RAS mutation had significantly longer PFS (median PFS, 9.2 vs. 7.8 months; HR, 0.67; 95% CI, 0.50–0.91; P = 0.01) with vitamin C added to chemotherapy than with chemotherapy only. Conclusions: High-dose vitamin C plus chemotherapy failed to show superior PFS compared with chemotherapy in patients with mCRC as first-line treatment but may be beneficial in patients with mCRC harboring RAS mutation.
    Type of Medium: Online Resource
    ISSN: 1078-0432 , 1557-3265
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2022
    detail.hit.zdb_id: 1225457-5
    detail.hit.zdb_id: 2036787-9
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  • 3
    In: Clinical Cancer Research, American Association for Cancer Research (AACR), Vol. 24, No. 4 ( 2018-02-15), p. 916-926
    Abstract: Purpose: The comprehensive understanding of mechanisms involved in the tumor metastasis is urgently needed for discovering novel metastasis-related genes for developing effective diagnoses and treatments for lung cancer. Experimental Design: FAM198B was identified from an isogenic lung cancer metastasis cell model by microarray analysis. To investigate the clinical relevance of FAM198B, the FAM198B expression of 95 Taiwan lung adenocarcinoma patients was analyzed by quantitative real-time PCR and correlated to patients' survivals. The impact of FAM198B on cell invasion, metastasis, and tumor growth was examined by in vitro cellular assays and in vivo mouse models. In addition, the N-glycosylation–defective FAM198B mutants generated by site-directed mutagenesis were used to study protein stability and subcellular localization of FAM198B. Finally, the microarray and pathway analyses were used to elucidate the underlying mechanisms of FAM198B-mediated tumor suppression. Results: We found that the high expression of FAM198B was associated with favorable survival in Taiwan lung adenocarcinoma patients and in a lung cancer public database. Enforced expression of FAM198B inhibited cell invasion, migration, mobility, proliferation, and anchorage-independent growth, and FAM198B silencing exhibited opposite activities in vitro. FAM198B also attenuated tumor growth and metastasis in vivo. We further identified MMP-1 as a critical downstream target of FAM198B. The FAM198B-mediated MMP-1 downregulation was via inhibition of the phosphorylation of ERK. Interestingly deglycosylation nearly eliminated the metastasis suppression activity of FAM198B due to a decrease of protein stability. Conclusions: Our results implicate FAM198B as a potential tumor suppressor and to be a prognostic marker in lung adenocarcinoma. Clin Cancer Res; 24(4); 916–26. ©2017 AACR.
    Type of Medium: Online Resource
    ISSN: 1078-0432 , 1557-3265
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2018
    detail.hit.zdb_id: 1225457-5
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  • 4
    Online Resource
    Online Resource
    American Association for Cancer Research (AACR) ; 2022
    In:  Cancer Research Vol. 82, No. 19 ( 2022-10-04), p. 3449-3456
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 82, No. 19 ( 2022-10-04), p. 3449-3456
    Abstract: Microorganisms are commonly detected in tumor tissues, and the species and abundance have been reported to affect cancer initiation, progression, and therapy. Host genetics have been associated with gut microbial abundances, while the relationships between genetic variants and the cancer microbiome still require systematic interrogation. Therefore, identification of cancer microbiome quantitative trait loci (mbQTL) across cancer types might elucidate the contributions of genetic variants to tumor development. Using genotype data from The Cancer Genome Atlas and microbial abundance levels from Kraken-derived data, we developed a computational pipeline to identify mbQTLs in 32 cancer types. This study systematically identified 38,660 mbQTLs across cancers, ranging 50 in endometrial carcinoma to 3,133 in thyroid carcinoma. Furthermore, a strong enrichment of mbQTLs was observed among transcription factor binding sites and chromatin regulatory elements, such as H3K27ac. Notably, mbQTLs were significantly enriched in cancer genome-wide association studies (GWAS) loci and explained an average of 2% for cancer heritability, indicating that mbQTLs could provide additional insights into cancer etiology. Correspondingly, 24,443 mbQTLs overlapping with GWAS linkage disequilibrium regions were identified. Survival analyses identified 318 mbQTLs associated with patient overall survival. Moreover, we uncovered 135,248 microbiome–immune infiltration associations and 166,603 microbiome–drug response associations that might provide clues for microbiome-based biomarkers. Finally, a user-friendly database, Cancer-mbQTL (http://canmbqtl.whu.edu.cn/#/), was constructed for users to browse, search, and download data of interest. This study provides a valuable resource for investigating the roles of genetics and microorganisms in human cancer. Significance: This study provides insights into the host–microbiome interactions for multiple cancer types, which could help the research community understand the effects of inherited variants in tumorigenesis and development.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2022
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  • 5
    In: Cancer Epidemiology, Biomarkers & Prevention, American Association for Cancer Research (AACR), Vol. 27, No. 2 ( 2018-02-01), p. 154-157
    Abstract: Background: It has been asserted that mammography screening preferentially benefits those with less aggressive cancers, with lesser or no impact on more rapidly progressing and therefore more life-threatening tumors. Methods: We utilized data from the Swedish Two-County Trial, which randomized 77,080 women ages 40 to 74 to invitation to screening and 55,985 for usual care. We tabulated cancers by histologic grade and then compared mortality from cancers specific to histologic grade between the invited and control group using Poisson regression, with specific interest in the effect on mortality from grade 3 cancers. We used incidence-based mortality from tumors diagnosed within the screening phase of the trial. Finally, we cross-tabulated grade with tumor size and node status, to assess downstaging within tumor grades. Results: There was a major reduction in mortality from grade 3 tumors (RR = 0.65; 95% CI, 0.53–0.80; P & lt; 0.001), and more deaths prevented from grade 3 tumors (n = 95) than grade 1 and 2 tumors combined (n = 48) in the invited group. The proportions of tumors ≥15 mm or larger and node-positive tumors were substantially reduced in the grade 3 tumors in the invited group. Conclusions: The combination of prevention of tumors progressing to grade 3 and detection at smaller sizes and lesser rates of lymph node metastases within grade 3 tumors results in a substantial number of deaths from grade 3 cancers being prevented by invitation to mammographic screening. Impact: Mammography screening prevents deaths from aggressive cancers. Cancer Epidemiol Biomarkers Prev; 27(2); 154–7. ©2017 AACR.
    Type of Medium: Online Resource
    ISSN: 1055-9965 , 1538-7755
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2018
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    detail.hit.zdb_id: 1153420-5
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  • 6
    Online Resource
    Online Resource
    American Association for Cancer Research (AACR) ; 2020
    In:  Cancer Research Vol. 80, No. 16_Supplement ( 2020-08-15), p. 846-846
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 80, No. 16_Supplement ( 2020-08-15), p. 846-846
    Abstract: Microsatellite instability (MSI)/mismatch repair (MMR) status is a positive predictor for immune checkpoint inhibitors. Conventional detection method for MSI status relies on polymerase chain reaction (PCR) of 5 microsatellite loci. With the advancement of next-generation sequencing (NGS) applied to clinical samples, we developed a MSI prediction algorithm to determine MSI status from large-panel clinical targeted NGS data accounting for more than 500 microsatellite loci. A set of colorectal cancer clinical samples with known MSI status by PCR were used to train a MSI prediction model, which predicts a sample as microsatellite instability high (MSI-H) or microsatellite stable (MSS). The model was constructed based on the change of number of repeats of different lengths from a pooled MSS baseline across microsatellites in a comprehensive cancer genomic panel targeting 440 genes. Using a quantitative measure based on more than 500 microsatellites loci, the model achieves high robustness and efficiency for MSI status detection from NGS data without matched normal. An independent dataset of clinical samples across various cancer types were used to validate the model showing an accuracy of 96.8%. In summary, MSI status can be determined by the MSI prediction model from clinical targeted NGS panel without normal paired sample. Citation Format: Ya-Chi Yeh, Chien-Hung Chen, Kuan-Ying Chen, Ying-Ja Chen, Shu-Jen Chen. Microsatellite instability determined by clinical targeted next generation sequencing [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 846.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2020
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  • 7
    In: Molecular Cancer Therapeutics, American Association for Cancer Research (AACR), Vol. 15, No. 12 ( 2016-12-01), p. 2916-2925
    Abstract: Hepatocellular carcinoma is among the leading causes of cancer-related deaths worldwide, and the development of new treatment regimens is urgently needed to improve therapeutic approach. In our study, we found that the combination of a Met inhibitor, cabozantinib, and a novel FAK inhibitor, CT-707, exerted synergistic antitumor effects against hepatocellular carcinoma in vitro and in vivo. Interestingly, further studies showed that therapeutic concentrations of cabozantinib increased the phosphorylation of FAK, which might attenuate the antitumor activity of cabozantinib. The simultaneous exposure to CT-707 effectively inhibited the activation of FAK that was induced by cabozantinib, which contributes to the synergistic effect of the combination. Furthermore, cabozantinib increased the mRNA and protein levels of integrin α5, which is a canonical upstream of FAK, and the introduction of cilengitide to block integrin function could abrogate FAK activation by cabozantinib, indicating that cabozantinib upregulated the phosphorylation of FAK in an integrin-dependent manner. Similar synergy was also observed on PHA-665752, another selective MET inhibitor, indicating that this observation might be a common characteristic of MET-targeting strategies. Our findings not only favor the development of the novel FAK inhibitor CT-707 as a therapeutic agent against hepatocellular carcinoma but also provide a new strategy of combining MET and FAK inhibitors to potentiate the anticancer activities of these two types of agents for treating hepatocellular carcinoma patients. Mol Cancer Ther; 15(12); 2916–25. ©2016 AACR.
    Type of Medium: Online Resource
    ISSN: 1535-7163 , 1538-8514
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2016
    detail.hit.zdb_id: 2062135-8
    SSG: 12
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  • 8
    In: Clinical Cancer Research, American Association for Cancer Research (AACR), Vol. 24, No. 8 ( 2018-04-15), p. 1824-1833
    Abstract: Purpose: Because of the uneven geographic distribution and small number of randomized trials available, the value of additional induction chemotherapy (IC) to concurrent chemoradiotherapy (CCRT) in nasopharyngeal carcinoma (NPC) remains controversial. This study performed an individual patient data (IPD) pooled analysis to better assess the precise role of IC + CCRT in locoregionally advanced NPC. Experimental Design: Four randomized trials in endemic areas were identified, representing 1,193 patients; updated IPD were obtained. Progression-free survival (PFS) and overall survival (OS) were the primary and secondary endpoints, respectively. Results: Median follow-up was 5.0 years. The HR for PFS was 0.70 [95% confidence interval (CI), 0.56–0.86; P = 0.0009; 9.3% absolute benefit at 5 years] in favor of IC + CCRT versus CCRT alone. IC + CCRT also improved OS (HR = 0.75; 95% CI, 0.57–0.99; P = 0.04) and reduced distant failure (HR = 0.68; 95% CI, 0.51–0.90; P = 0.008). IC + CCRT had a tendency to improve locoregional control compared with CCRT alone (HR = 0.70; 95% CI, 0.48–1.01; P = 0.06). There was no heterogeneity between trials in any analysis. No interactions between patient characteristics and treatment effects on PFS or OS were found. After adding two supplementary trials to provide a more comprehensive overview, the conclusions remained valid and were strengthened. In a supplementary Bayesian network analysis, no statistically significant differences in survival between different IC regimens were detected. Conclusions: This IPD pooled analysis demonstrates the superiority of additional IC over CCRT alone in locoregionally advanced NPC, with the survival benefit mainly associated with improved distant control. Clin Cancer Res; 24(8); 1824–33. ©2018 AACR.
    Type of Medium: Online Resource
    ISSN: 1078-0432 , 1557-3265
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2018
    detail.hit.zdb_id: 1225457-5
    detail.hit.zdb_id: 2036787-9
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  • 9
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 78, No. 14 ( 2018-07-15), p. 3995-4006
    Abstract: Given that Yes-associated protein (YAP) signaling acts as a critical survival input for hypoxic cancer cells in hepatocellular carcinoma (HCC), disruption of YAP function and the maintenance of hypoxia is an attractive way to treat HCC. Utilizing a cell-based YAP-TEAD luciferase reporter assay and functional analyses, we identified CT-707, a China-FDA approved multi-kinase inhibitor under clinical trial with remarkable inhibitory activity against YAP function. CT-707 exhibited prominent cytotoxicity under hypoxia on HCC cells, which was attributable to the inhibition of YAP signaling. CT-707 arrested tumor growth in HepG2, Bel-7402, and HCC patient-derived xenografts. Mechanistically, the inhibitory activity of CT-707 on YAP signaling was due to the interruption of hypoxia-activated IGF1R. Overall, these findings not only identify CT-707 as a promising hypoxia-targeting agent against HCC, but they also unveil IGF1R as a new modulator specifically regulating hypoxia-activated YAP signaling. Significance: CT-707 may represent a novel clinical approach for patients with HCC suffering poor drug response due to intratumor hypoxia. Cancer Res; 78(14); 3995–4006. ©2018 AACR.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2018
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
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  • 10
    In: Cancer Prevention Research, American Association for Cancer Research (AACR), Vol. 6, No. 7 ( 2013-07-01), p. 744-752
    Abstract: Colorectal adenoma (CRA) is the precursor lesion of colorectal cancer (CRC). Several agents have been shown to be effective in the chemoprevention of CRA recurrence, but there has been little research on its primary prevention. Participants older than 50 years with no adenomas were recruited for our study and randomized to receive either 1 mg/day folic acid supplement or treatment without folic acid. After 3 years of follow-up, plasma folate and colonoscopy were evaluated. Seven hundred ninety-one participants (91.98%) completed the study. CRA occurred in 64 (14.88%) participants in the folic acid group and 132 (30.70%) in the control group [unadjusted risk ratio (RR), 0.49; 95% confidence interval (CI), 0.37–0.63; P & lt; 0.01]; left-sided adenoma (unadjusted RR, 0.54; 95% CI, 0.38–0.76; P = 0.001) and advanced CRA (unadjusted RR, 0.36; 95% CI, 0.16–0.81; P = 0.01) were most common. There was no significance difference in the occurrence of three or more adenomas (unadjusted RR, 0.70; 95% CI, 0.36–1.77; P = 0.38) or right-sided adenoma (unadjusted RR, 0.55; 95% CI, 0.30–1.00; P = 0.07) between the two groups. Participants with low plasma folate may have a high risk of CRA. In conclusion, primary prevention with 1 mg/day folic acid supplementation could reduce the incidence of CRA, especially left-sided and advanced disease in those with no previous adenomas. People with differing baseline plasma folate levels should be given individualized treatment. Those with low plasma folate should be encouraged to take adequate supplements; plasma folate should be elevated to an effective therapeutic level, which may reduce the incidence of CRA. Cancer Prev Res; 6(7); 744–52. ©2013 AACR.
    Type of Medium: Online Resource
    ISSN: 1940-6207 , 1940-6215
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2013
    detail.hit.zdb_id: 2422346-3
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