|
Colorectal Carcinoma
|
|
0.800 |
SusceptibilityMutation
|
CLINVAR |
Familial colorectal cancer in Ashkenazim due to a hypermutable tract in APC.
|
9288102 |
1997 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
The I1307K APC mutation does not predispose to colorectal cancer in Jewish Ashkenazi breast and breast-ovarian cancer kindreds.
|
9407954 |
1997 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Among the 1087 first-degree relatives, there were 23 cases of colorectal cancer; 3 of 100 relatives of probands with the I1307K allele (3.0%) had a history of colorectal cancer versus 20 of 987 relatives of probands without the I1307K allele (2.1%; relative risk, 1.48; 95% confidence interval, 0.45-4.88; P = 0.462).
|
9679945 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Our data show that the I1307K variant is rare in the Norwegian population and should not be viewed as a candidate for susceptibility testing for colorectal cancer.
|
9679946 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
SusceptibilityMutation
|
CLINVAR |
The APC variants I1307K and E1317Q are associated with colorectal tumors, but not always with a family history.
|
9724771 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
SusceptibilityMutation
|
CLINVAR |
The I1307K allele was found in 6.1% of unselected Ashkenazi Jews and higher proportions of Ashkenazim with family or personal histories of CRC (ref.2).
|
9731533 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
The I1307K allele was found in 6.1% of unselected Ashkenazi Jews and higher proportions of Ashkenazim with family or personal histories of CRC (ref.2).
|
9731533 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Interestingly, the I1307K APC polymorphism, associated with an increased risk of colorectal cancer, is also present in this family.
|
9831355 |
1998 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
The I1307K APC variant may represent a susceptibility gene for colorectal, or other, cancers in Ashkenazi Jews, and partially explains the higher incidence of colorectal cancer in European Israelis.
|
9869602 |
1999 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Our findings support the hypothesis that the I1307K mutation is unique to the Ashkenazi Jews, contributes to tumor predisposition in colorectal cancer, and is unrelated to mismatch repair deficiency.
|
9869603 |
1999 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Furthermore, compared with noncarriers, APC I1307K carriers had increased numbers of adenomas and colorectal cancers per patient (P=.03), as well as a younger age at diagnosis.
|
9973276 |
1999 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
An adenomatous polyposis coli (APC) gene variant (I1307K allele), which was recently reported in 1 in 17 Ashkenazi Jewish persons, may double the risk for colorectal cancer in that population.
|
10343885 |
1999 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
The I1307K polymorphism in APC has been found to predispose to colorectal cancer in Ashkenazi Jews, and has recently been associated with an increased risk for breast cancer in the same population.
|
10555757 |
1999 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
The reported association between the APC I1307K mutation and colon cancer risk was supported by a correlation in these data between personal or family history of CRC or polyps and a gene mutation.
|
10756345 |
2000 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
To determine the carrier rate of the I1307K mutation in Ashkenazi Jewish patients with a history of colorectal polyps but without colorectal cancer and to compare phenotypic characteristics and family history of carriers vs noncarriers.
|
10938175 |
2000 |
|
Colorectal Carcinoma
|
|
0.800 |
SusceptibilityMutation
|
CLINVAR |
To further address the pathogenic significance of I1307K, we offered both a genetic test and a screening program to individuals considered to be at increased risk for colorectal cancer.
|
11159880 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
APC I1307K increases risk of transition from polyp to colorectal carcinoma in Ashkenazi Jews.
|
11159880 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Thus, our aim was to investigate the prevalence of I1307K and E1317Q in Swedish colorectal cancer patients in order to determine if these genetic variants are important predisposing factors to colorectal cancer in this population.
|
11267860 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Prevalence of the I1307K variant was not significantly different among individuals with IBD, Crohn's disease, ulcerative colitis, and unaffected relatives (6.9%, 7.6%, 4.7%, and 6.2%, respectively), and the mutation was detected in only one of five IBD-affected individuals with a diagnosis of CRC.
|
11354631 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
A missense mutation within the APC gene, I1307K, was described in Ashkenazi individuals at risk for colorectal cancer (CRC) and in the general population.
|
11551102 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
Phenotypic characteristics of colo-rectal cancer in I1307K APC germline mutation carriers compared with sporadic cases.
|
11720476 |
2001 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
I1307K is a founder genetic variant in Jews of different ethnic origin, mainly Ashkenazim, but it explains only partially their higher incidence of colorectal carcinoma.
|
12173321 |
2002 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
There is inconsistent evidence as to whether or not I1307K confers an increased risk of colorectal cancer.
|
12533824 |
2003 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
We suggest that the I1307K mutation may contribute to CRC in Israeli Arabs and that inactivating mutations of MSH2 and MLH1 may not be a major cause for early onset CRC.
|
12655564 |
2003 |
|
Colorectal Carcinoma
|
|
0.800 |
GeneticVariation
|
BEFREE |
In conclusion, the molecular pathways in CRC in I1307K APC mutation carriers are seemingly similar to those of sporadic cases, but a larger study is clearly needed.
|
12822869 |
2003 |