Hongrui Xu's scientific contributions

Publications (6)

Publications citing this author (28)

    • In the past decades, a large number of DNA methylation-based biomarkers of NSCLC have been identified. The diagnostic abilities or risk associations for several of them have been quantitatively evaluated such as SHOX2 [20], APC [21], RASSF1A [22], FHIT [23], MGMT [24], RUNX3 [25], RARbeta [26], E-cadherin [27] and P16 [28]. Zhong and colleagues have conducted a meta-analysis to evaluate the association between CDH13 promoter methylation and NSCLC [29], while only case-control studies were included.
    [Show abstract] [Hide abstract] ABSTRACT: Background: Aberrant methylation of CpG islands in tumor cells in promoter regions is a critical event in non-small cell lung carcinoma (NSCLC) tumorigenesis and can be a potential diagnostic biomarker for NSCLC patients. The present study systemically and quantitatively reviewed the diagnostic ability of CDH13 methylation in NSCLC as well as in its subsets. Eligible studies were identified through searching PubMed, Web of Science, Cochrane Library and Embase. The pooled odds of CDH13 promoter methylation in lung cancer tissues versus normal controls were calculated by meta-analysis method. Simultaneously, four independent DNA methylation datasets of NSCLC from TCGA and GEO database were downloaded and analyzed to validate the results from meta-analysis. Results: Thirteen studies, including 1850 samples were included in this meta-analysis. The pooled odds ratio of CDH13 promoter methylation in cancer tissues was 7.41 (95% CI: 5.34 to 10.29, P < 0.00001) compared with that in controls under fixed-effect model. In validation stage, 126 paired samples from TCGA were analyzed and 5 out of the 6 CpG sites in the CpG island of CDH13 were significantly hypermethylated in lung adenocarcinoma tissues but none of the 6 CpG sites was hypermethylated in squamous cell carcinoma tissues. Concordantly, the results from other three datasets, which were subsequently obtained from GEO database consisting of 568 tumors and 256 normal tissues, also consisted with those from TCGA dataset. Conclusion: The pooled data showed that the methylation status of the CDH13 promoter is strongly associated with lung adenocarcinoma. The CDH13 methylation status could be a promising diagnostic biomarker for diagnosis of lung adenocarcinoma.
    Full-text · Article · Nov 2016
    • Approximately 87% of lung cancer cases are attributed to tobacco exposure; the relative risk of lung cancer in smokers is 24 times of that in non-smokers [9]. Additionally, lung cancer among non-smokers is significantly associated with exposure to second-hand smoking of more than 20 cigarettes daily, adulthood second-hand smoke exposure, gender female, and second-hand smoke exposure in the workplace [10]. According to a survey in 2007 in Tianjin [11], 79.17% of non-smokers were exposed to second-hand smoke, which is much higher than the nationwide rate of 51.19% in 2002.
    Article · Jan 2014 · Asian Pacific journal of cancer prevention: APJCP
    • Overall survival at 2/3 years was not significantly different between early and late TRT (p=0.09) (Zhao et al., 2010). Although no OS benefit was seen with early TRT in the meta-anlyses byDe Ruysscher et al and Zhao et al. (2010)significant benefits in favor of early TRT have previously been demonstarted in patients receving platinum-based CT and hyperfractionated TRT (Fried et al., 2004).
    [Show abstract] [Hide abstract] ABSTRACT: Background: It is standard treatment to combine chemotherapy (CT) and thoracic radiotherapy (TRT) in treating patients with limited stage small cell lung cancer (LS-SCLC). However, optimal timing of TRT is unclear. We here evaluated the survival impact of early versus late TRT in patients with LS-SCLC. Materials and methods: Follow-up was retrospectively analyzed for seventy consecutive LS-SCLC patients who had successfully completed chemo-TRT between January 2006 and January 2012. Patients received TRT after either 1 to 2 cycles of CT (early TRT) or after 3 to 6 cycles of CT (late TRT). Survival and response rates were evaluated using the Kaplan-Meier method and comparisons were made using the multivariate Cox regression test. Results: Median follow-up was 24 (5 to 57) months. Carboplatin+etoposide was the most frequent induction CT (59%). Median overall, disease free, and metastasis free survivals in all patients were 15 (5 to 57), 5 (0 to 48) and 11 (3 to 57) months respectively. Late TRT was superior to early TRT group in terms of response rate (p=0.05). 3 year overall survival (OS) rates in late versus early TRT groups were 31% versus 17%, respectively (p=0.03). Early TRT (p=0.03), and incomplete response to TRT (p=0.004) were negative predictors of OS. Significant positive prognostic factors for distant metastasis free survival were late TRT (p=0.03), and use of PCI (p=0.01). Use of carboplatin versus cisplatin for induction CT had no significant impact on OS (p=0.634), DFS (p=0.727), and MFS (p=0.309). Conclusions: Late TRT appeared to be superior to early TRT in LS-SCLC treatment in terms of complete response, OS and DMFS. Carboplatin or cisplatin can be combined with etoposide in the induction CT owing to similar survival outcomes.
    Full-text · Article · Aug 2014