Nuclear genetic mutations have been extensively investigated in solid tumors. However, the role of the mitochondrial genome remains uncertain. Since the metabolism of solid tumors is associated with aerobic glycolysis and high lactate production, tumors may have mitochondrial dysfunctions. Familial adenomatous polyposis (FAP) is a rare form‌ of colorectal cancer and an autosomal dominant inheri...

Background MUTYH-associated polyposis (MAP) is an autosomal recessive disorder that is caused by germline mutations in the base excision repair gene MUTYH. Phenotypic expression is usually that of an attenuated polyposis syndrome with anywhere from 3-100+ polyps and mixed pathology including tubular adenomas, sessile serrated adenomas, and/or hyperplastic polyps. The use of nonsteroidal anti-in...

We have developed a method for the routine primary culture of human colonie epithelial cells. Cultured cells exhibited char acteristic epithelial structures, including a brush border and junctional complexes. Flask-like goblet cells containing mucus were also seen within the epithelial monolayer. [3H]Thymidine labeling indices were used to distinguish between cultured cells from familial polypo...

Correspondence to: Mr L Brosens, Department of Pathology, Academic Medical Center, Meibergdreef 9, Amsterdam 1105 AZ, the Netherlands; l.a.brosens@ amc.uva.nl _________________________ F amilial adenomatous polyposis (FAP) is one of two well described forms of hereditary colorectal cancer. The primary cause of death from this syndrome is colorectal cancer which inevitably develops usually by th...

Familial adenomatous polyposis (FAP) is an autosomal-dominantly inherited form of colorectal cancer (CRC) caused by mutation in the adenomatous polyposis coli (APC) gene. Our ability to exhaustively screen for APC mutations identify microsatellite-stable and APC-mutation negative familial CRC patients, enabling us to search for novel genes. We performed genome-wide scan on two affected siblings...

A man in his fourth decade with familial adenomatous polyposis (FAP) and previous colectomy due to colon adenocarcinoma underwent esophagogastroduodenoscopy (EGD) to investigate 3 days of nausea, epigastric abdominal pain, and coffee ground emesis; no source of bleeding was found. During the endoscopy, patchy mucosal abnormalities throughout the duodenum were identified and biopsied (Figure 1)....

The purpose of this article is to review basic research as well as clinical studies on Chinese hereditary colorectal cancer. Hereditary nonpolyposis colorectal cancer (HNPCC, Lynch syndrome) accounts for 2.2% of all colorectal cancer, and Chinese criteria for suspected HNPCC have been developed. Germline mutations as well as large genomic rearrangements of mismatch repair (MMR) genes are respon...

Hamartomas are tumour-like malformations, consisting of disorganized normal tissues, typical of the site of tumour manifestation. Familial manifestation of hamartomatous polyps can be noted in juvenile polyposis syndrome (JPS), Peutz-Jeghers' syndrome (PJS), hereditary mixed polyposis syndrome (HMPS) and PTEN hamartoma tumour syndrome (PHTS). All the aforementioned syndromes are inherited in an...

Colorectal polyposis is the main feature of familial adenomatous polyposis (FAP), but benign and malignant lesions have also been described in the stomach, duodenum, small bowel, biliary tract and pancreas. There are few reports on FAP patients with duodenal polyps that developed at a younger age and even fewer on cases with dysplastic degeneration. The progression to carcinoma usually presents...

Introduction Peutz-Jeghers syndrome (PJS) is characterized by: (i) autosomal dominant inheritance; (ii) cutaneous pigmentation; (iii) gastro-intestinal polyposis. In all, more than 300 cases have been described with a world-wide distribution and no racial predilection. In 1921 Peutz described 7 cases of multiple intestinal polyps associated with melanin spots on the lips, buccal mucosa and digi...