scholarly journals Overall survival after recurrence in stage I–III colorectal cancer patients in accordance with the recurrence organ site and pattern

2021 ◽  
Author(s):  
Hiroshi Sawayama ◽  
Yuji Miyamoto ◽  
Yukiharu Hiyoshi ◽  
Katsuhiro Ogawa ◽  
Rikako Kato ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Cancer Patients ◽  
Stage I ◽  
Organ Site ◽  
Colorectal Cancer Patients

A study on the genomic alterations of transformation from colorectal adenoma to colorectal cancer.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e15607-e15607
Author(s):  
Qingjian Chen ◽  
Pan Yang ◽  
Linna Luo ◽  
Wenhua Fan ◽  
Chen Wei ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cancer Patients ◽  
Tissue Sample ◽  
Intraepithelial Neoplasia ◽  
Stage I ◽  
Tissue Samples ◽  
Diagnostic Potential ◽  
Notch Pathways ◽  
Colorectal Cancer Patients ◽  
Villous Adenomas

e15607 Background: Colorectal cancer is one of the most common malignancies worldwide. Approximately 85% of colorectal cancers are thought to result from adenoma. However, the molecular mechanism of adenoma transformation into colorectal cancer is still unclear. Methods: Ninety-nine adenoma patients aged from 25 to 78 years old were enrolled in this study. We collected tissue sample from each patient and 77 matched blood samples. Pathological subtypes included tubular villous adenomas, villous adenomas, tubular adenomas, high-grade intraepithelial neoplasia, and polyps. Eighty-one stage I colorectal cancer patients (CRC I) were also enrolled in this study. All samples underwent Next-generation sequencing with a panel of 405 cancer related genes. Results: Mutational profiles of adenoma and CRC I patients were compared. The top 5 most frequently mutated genes in adenoma were APC (71%), KRAS (41%), ATM (33%), RIF1 (31%), SYNE1 (28%). While in CRC I patients, top 5 mutated genes were APC (78%), TP53 (57%), TTN (35%), KRAS (33%) and TCF7L2 (22%). There were significant differences between TP53 and TTN by chi-square test. The frequency, number and TMB of mutations in stage I colorectal cancer patients were significantly higher than those in various adenoma subtypes. Stage I colorectal cancer patients have more mutated genes enriched in the Wnt and Notch pathways than adenoma patients. We analyzed mutation signatures in CRC I and adenoma patients, and CRC I were more focused on mutation signatures of mismatch repair such as signature 1, signature 6, signature 10, and signature 15. A total of 391 mutations were identified in tissue samples, while 130 mutations were found in plasma cell-free DNA, with 116 mutations shared between them. The two genes with the highest consistency between tissue and blood were PAX7 and KMT2D. Conclusions: TP53 and TTN are associated with the transition from CRC I to adenoma, and Wnt and Notch pathways may also be involved. PAX7 and KMT2D mutations frequently found in adenoma tissue and blood cfDNA demonstrate the diagnostic potential of these two genes in clinic.

scholarly journals PIK3CAandTP53mutations predict overall survival of stage II/III colorectal cancer patients

2018 ◽  
Vol 24 (5) ◽  
pp. 631-640 ◽  
Author(s):  
A-Jian Li ◽  
Hua-Guang Li ◽  
Er-Jiang Tang ◽  
Wei Wu ◽  
Ying Chen ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Cancer Patients ◽  
Stage Ii ◽  
Colorectal Cancer Patients

scholarly journals Higher titer hepatitis B core antibody predicts a higher risk of liver metastases and worse survival in patients with colorectal cancer

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ziyao Li ◽  
Shaofei Li ◽  
Hangbo Tao ◽  
Yixiang Zhan ◽  
Kemin Ni ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Hepatitis B ◽  
Liver Metastases ◽  
Cancer Patients ◽  
Hepatic Metastasis ◽  
High Titer ◽  
Poor Overall Survival ◽  
Free Survival ◽  
Colorectal Cancer Patients

Abstract Background There have been controversial voices on if hepatitis B virus infection decreases the risk of colorectal liver metastases or not. This study aims to the find the association between HBV infection and postoperative survival of colorectal cancer and the risk of liver metastases in colorectal cancer patients. Methods Patients who underwent curative surgical resection for colorectal cancer between January 2011 and December 2012 were included. Patients were grouped according to anti-HBc. Differences in overall survival, time to progress, and hepatic metastasis-free survival between groups and significant predictors were analyzed. Results Three hundred twenty-seven colorectal cancer patients were comprised of 202 anti-HBc negative cases and 125 anti-HBc positive cases, and anti-HBc positive cases were further divided into high-titer anti-HBc group (39) and low-titer anti-HBc group (86). The high-titer anti-HBc group had significantly worse overall survival (5-Yr, 65.45% vs. 80.06%; P < .001), time to progress (5-Yr, 44.26% vs. 84.73%; P < .001), and hepatic metastasis-free survival (5-Yr, 82.44% vs. 94.58%; P = .029) than the low-titer group. Multivariate model showed anti-HBc ≥ 8.8 S/CO was correlated with poor overall survival (HR, 3.510; 95% CI, 1.718–7.17; P < .001), time to progress (HR, 5.747; 95% CI, 2.789–11.842; P < .001), and hepatic metastasis-free survival (HR, 3.754; 95% CI, 1.054–13.369; P = .041) in the anti-HBc positive cases. Conclusions Higher titer anti-HBc predicts a potential higher risk of liver metastases and a worse survival in anti-HBc positive colorectal cancer patients.

Predicting biomarkers of hepatic metastasis in Chinese colorectal cancer patients.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e15545-e15545
Author(s):  
Honghua Peng ◽  
Tianhao Mu ◽  
Yaping Sheng ◽  
Yingmei Li ◽  
Peiguo Cao
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Cancer Patients ◽  
Hepatic Metastasis ◽  
Primary Tumor ◽  
Potential Candidate ◽  
Poor Overall Survival ◽  
Primary Tumors ◽  
Distant Spread ◽  
Colorectal Cancer Patients

e15545 Background: Hepatic metastasis is the most common site of distant spread from colorectal cancer. About 15-25% patients with colorectal cancer harbors hepatic metastasis. The molecular mechanism and predicting biomarkers in colorectal cancer are still not fully understood. Methods: 57 Chinese colorectal cancer patients were enrolled in a cohort study. Samples of primary tumor were collected in these patients and underwent whole exome sequencing. Mutation profiles of primary tumors between the patients with metastasis and those without metastasis were analyzed and compared. Results: In the cohort, 54.4% (31/57) patients presented hepatic metastasis at the time of diagnosis, while 45.6% (26/57) did not. The patients were divided into 2 groups—with hepatic metastasis and without hepatic metastasis. The mutation landscape of primary tumor indicated that the Top 3 most frequently mutated genes of both groups were the same and presented mutated TP53, APC, and KRAS. 2. Interestingly, compared with the patients without hepatic metastasis, the patients with hepatic metastasis presented a higher frequency of mutated TCF7L2 (35.5% vs 3.85%) and TRIM77 (16.1% vs 0%). Moreover, in the patients with hepatic metastasis, the patients with TRIM77 mutation in primary tumor showed a worse overall survival (p < 0.0001). Conclusions: TCF7L2 and TRIM77 may be identified as potential candidate predicting biomarkers for hepatic metastasis in colorectal patients. In addition, mutated TRIM 77 predicted a poor overall survival in hepatic metastasis from colorectal cancer.

scholarly journals A common variant of the MACC1 gene is significantly associated with overall survival in colorectal cancer patients

BMC Cancer ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Alois H Lang ◽  
Simone Geller-Rhomberg ◽  
Thomas Winder ◽  
Nicole Stark ◽  
Klaus Gasser ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Cancer Patients ◽  
Common Variant ◽  
Colorectal Cancer Patients
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