scholarly journals Is sporadic colorectal cancer more aggressive in young people and should the age of colonoscopy screening be reduced?

2021 ◽  
Vol 122 (06) ◽  
pp. 432-437
Author(s):  
A. Surek ◽  
S. Ferahman ◽  
E. Gemici ◽  
K. Corba ◽  
M. A. Bozkurt ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Young People ◽  
Sporadic Colorectal Cancer ◽  
Colonoscopy Screening

scholarly journals Clinical and phenotypic variants of hereditary and sporadic colorectal cancer in young patients

2021 ◽  
Vol 60 (2) ◽  
pp. 9-21
Author(s):  
G. A. Afonin ◽  
N. A. Baltayev ◽  
D. R. Kaidarova ◽  
А. К. Ababakriyev ◽  
P. B. Kalmenova
Keyword(s):  
Colorectal Cancer ◽  
Young People ◽  
Young Patients ◽  
Response To Therapy ◽  
Sporadic Colorectal Cancer ◽  
Upward Trend ◽  
Primary Tumors ◽  
The Republic ◽  
Group 2 ◽  
Group 1

Relevance: In the Republic of Kazakhstan, colorectal cancer (CRC) ranks third in the structure of oncological pathology. In 2008-2019, the CRC incidence in the Republic was growing each year. There is an upward trend in CRC incidence among young people. Cohort studies show that, in young patients, CRC is characterized by distal localization of the tumor process, advanced stages of the disease, an aggressive course, and low tumor differentiation. The known association of phenotypic signs with clinical characteristics of the disease, such as the response to therapy and survival rates, urges addressing this problem. The phenotypic and molecular genetic aspects of CRC in young people have not been systematically studied in Kazakhstan. The purpose of the study was to compare the phenotypic features of hereditary and sporadic colorectal cancer in young patients and patients over 65 years. Results: The study involved 185 patients aged 17 to 50 years (Group 1) and 112 patients aged 65 to 85 (Group 2). In Group 1, a locally advanced process (stage III) was 14.8% more often than in Group 2; stage IV was 1.23 times more common in men; and multiple primary tumors were 3.1% more often, with a prevailing metachronous course. In Groups 1 & 2, most tumors were localized in the rectum; 84.8% and 78.6% of tumors, respectively, occurred in the left half of the colon. The frequency of right-sided tumors increased with age modified by gender (in Group 2). Hereditary burdened anamnesis was detected in 14.6% patients before 50 (6.57% more than in Group 2); family history of CRC – in 4.8% patients. The latter is consistent with published data. The studied syndromic variants met the diagnostic criteria for familial adenomatous polyposis, Lynch syndrome, Peutz-Jeghers syndrome, and familial type X colorectal cancer. Conclusion: The increase in CRC incidence at the age of 50-70 years is explained by the effectiveness of screening. However, the upward trend for the age below 50 needs a detailed study of etiological (dietary, environmental, behavioral, hereditary) factors. Effective early diagnostics requires considering the phenotypic characteristics and hereditary history associated with a high risk of CRC onset.

Clinicopathologic Features of Sporadic Colorectal Cancer with MLH1/MSH2 Loss of Expression - Reduced Likelihood of Metastases

2008 ◽  
Vol 24 (3) ◽  
pp. 175 ◽  
Author(s):  
Ji Won Park ◽  
Hee Jin Chang ◽  
Kyung Hae Jung ◽  
Dae Yong Kim ◽  
Dae Kyung Sohn ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Sporadic Colorectal Cancer ◽  
Clinicopathologic Features

Biomarkers for Early Detection of Colitis-associated Colorectal Cancer - Current Concepts, Future Trends

2020 ◽  
Vol 22 (1) ◽  
pp. 137-145
Author(s):  
Tomasz Mackiewicz ◽  
Aleksander Sowa ◽  
Jakub Fichna
Keyword(s):  
Colorectal Cancer ◽  
Early Detection ◽  
Cancer Development ◽  
Sporadic Colorectal Cancer ◽  
Future Trends ◽  
Significant Progress ◽  
Current Standard ◽  
Risk Of Cancer ◽  
Histological Testing ◽  
Made In

: Colitis-associated colorectal cancer (CAC) remains a critical complication of ulcerative colitis (UC) with mortality of approximately 15%, which makes early CAC diagnosis crucial. The current standard of surveillance, with repetitive colonoscopies and histological testing of biopsied mucosa samples is burdensome and expensive, and therefore less invasive methods and reliable biomarkers are needed. Significant progress has been made thanks to continuous extensive research in this field, however no clinically relevant biomarker has been established so far. This review of the current literature presents the genetic and molecular differences between CAC and sporadic colorectal cancer and covers progress made in the early detection of CAC carcinogenesis. It focuses on biomarkers under development, which can be easily tested in samples of body fluids or breath and, once made clinically available, will help to differentiate between progressors (UC patients who will develop dysplasia) from non-progressors and enable early intervention to decrease the risk of cancer development.

scholarly journals Tracking the Antibody Immunome in Sporadic Colorectal Cancer by Using Antigen Self-Assembled Protein Arrays

Cancers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2718
Author(s):  
María González-González ◽  
José María Sayagués ◽  
Luis Muñoz-Bellvís ◽  
Carlos Eduardo Pedreira ◽  
Marcello L. R. de Campos ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Clinical Utility ◽  
Genetic Alterations ◽  
Western World ◽  
Sporadic Colorectal Cancer ◽  
Protein Arrays ◽  
Humoral Immune ◽  
Cellular Processes ◽  
Healthy Donors ◽  
Associated Proteins

Sporadic Colorectal Cancer (sCRC) is the third leading cause of cancer death in the Western world, and the sCRC patients presenting with synchronic metastasis have the poorest prognosis. Genetic alterations accumulated in sCRC tumor cells translate into mutated proteins and/or abnormal protein expression levels, which contribute to the development of sCRC. Then, the tumor-associated proteins (TAAs) might induce the production of auto-antibodies (aAb) via humoral immune response. Here, Nucleic Acid Programmable Protein Arrays (NAPPArray) are employed to identify aAb in plasma samples from a set of 50 sCRC patients compared to seven healthy donors. Our goal was to establish a systematic workflow based on NAPPArray to define differential aAb profiles between healthy individuals and sCRC patients as well as between non-metastatic (n = 38) and metastatic (n = 12) sCRC, in order to gain insight into the role of the humoral immune system in controlling the development and progression of sCRC. Our results showed aAb profile based on 141 TAA including TAAs associated with biological cellular processes altered in genesis and progress of sCRC (e.g., FSCN1, VTI2 and RPS28) that discriminated healthy donors vs. sCRC patients. In addition, the potential capacity of discrimination (between non-metastatic vs. metastatic sCRC) of 7 TAAs (USP5, ML4, MARCKSL1, CKMT1B, HMOX2, VTI2, TP53) have been analyzed individually in an independent cohort of sCRC patients, where two of them (VTI2 and TP53) were validated (AUC ~75%). In turn, these findings provided novel insights into the immunome of sCRC, in combination with transcriptomics profiles and protein antigenicity characterizations, wich might lead to the identification of novel sCRC biomarkers that might be of clinical utility for early diagnosis of the tumor. These results explore the immunomic analysis as potent source for biomarkers with diagnostic and prognostic value in CRC. Additional prospective studies in larger series of patients are required to confirm the clinical utility of these novel sCRC immunomic biomarkers.

S2054 A Novel Mouse Model of Sporadic Colorectal Cancer

2008 ◽  
Vol 134 (4) ◽  
pp. A-305-A-306
Author(s):  
Kenneth Hung ◽  
Larissa Georgeon Richard ◽  
Alexandra Kunin ◽  
Umar Mahmood ◽  
Raju Kucherlapati
Keyword(s):  
Colorectal Cancer ◽  
Mouse Model ◽  
Sporadic Colorectal Cancer

scholarly journals Identification of preneoplastic lesions as mucin-depleted foci in patients with sporadic colorectal cancer

2011 ◽  
Vol 103 (1) ◽  
pp. 144-149 ◽  
Author(s):  
Eiji Sakai ◽  
Takamitsu Morioka ◽  
Eiji Yamada ◽  
Hidenori Ohkubo ◽  
Takuma Higurashi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Sporadic Colorectal Cancer ◽  
Preneoplastic Lesions

scholarly journals Distinct BRAF (V600E) and KRAS Mutations in High Microsatellite Instability Sporadic Colorectal Cancer in African Americans

2009 ◽  
Vol 15 (4) ◽  
pp. 1155-1161 ◽  
Author(s):  
Krishan Kumar ◽  
Hassan Brim ◽  
Francis Giardiello ◽  
Duane T. Smoot ◽  
Mehdi Nouraie ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
African Americans ◽  
Microsatellite Instability ◽  
Braf V600e ◽  
Sporadic Colorectal Cancer ◽  
Kras Mutations

scholarly journals Long-Term Outcome and Prognostic Factors of Sporadic Colorectal Cancer in Young Patients

Medicine ◽  
2016 ◽  
Vol 95 (19) ◽  
pp. e3641 ◽  
Author(s):  
Tae Jun Kim ◽  
Eun Ran Kim ◽  
Sung Noh Hong ◽  
Dong Kyung Chang ◽  
Young-Ho Kim
Keyword(s):  
Colorectal Cancer ◽  
Prognostic Factors ◽  
Young Patients ◽  
Sporadic Colorectal Cancer ◽  
Term Outcome ◽  
Long Term Outcome
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