Frequent K‐ras mutations and absence of p53 mutations in mucin‐producing tumors of the pancreas

Frequent K‐ras mutations and absence of p53 mutations in mucin‐producing tumors of the pancreas
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胰腺产生粘蛋白的肿瘤中存在频繁的 K-ras 突变且缺乏 p53 突变

DOI:
10.1002/jso.2930550205
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发表时间:
1994
影响因子:
2.5
通讯作者:
K. Ogawa
K. Ogawa
中科院分区:
医学3区
文献类型:
--
作者:
Tomokazu Hoshi;M. Imai;K. Ogawa

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相似文献

胰腺粘液瘤(MPT)的特点是产生大量粘液,手术治疗后呈良性过程。我们检查了16例MPT和20例“普通”胰腺导管细胞癌(DCC)的K-ras和p53突变。通过恒定变性凝胶电泳结合其他技术,使用从组织切片显微切割的样品扩增的PCR产物检测突变。在所有MPT和95%的DCC中发现了K-ras密码子12突变。另一方面,20例DCC中有4例(20%)发现p53突变,4例突变病例中有3例p53免疫细胞化学过表达。然而,在16例MPT中未发现p53突变和p53过表达。这些结果表明,尽管K-ras密码子12突变可能对MPT和DCC的发生几乎是必不可少的,但p53突变似乎主要涉及后者。© Wiley利斯公司
Mucin‐producing tumors of the pancreas (MPT) are characterized by the prodcution of much mucin and a benign course after surgical treatment. We examined 16 cases of MPT and 20 cases of “common” pancreatic duct cell carcinomas (DCC) in regard to K‐ras and p53 mutations. The mutations were detected by constant denaturant gel electrophoresis in combination with other techniques using PCR products amplified from the samples microdissected from the tissue sections. K‐ras codon 12 mutations were identified in all MPT and in 95% of DCC. On the other hand, p53 mutations were found in four of 20 (20%) DCC, and p53 was immunocy‐tochemically overexpressed in 3 of the 4 mutated cases. However, no p53 mutations and no p53 overexpression were identified in the 16 MPT. These results indicate that, although the K‐ras codon 12 mutations may be almost essential for the development of both MPT and DCC, p53 mutations seemed to be involved mainly to the latters. © Wiley‐Liss, Inc.
DOI: 10.1126/science.1905840
发表时间: 1991-07-05
期刊: SCIENCE
影响因子: 56.9
作者:
HOLLSTEIN, M;SIDRANSKY, D;HARRIS, CC
通讯作者: HARRIS, CC
DOI: 10.1101/gad.5.12b.2375
发表时间: 1991-12-01
影响因子: 10.5
作者:
HARVEY, DM;LEVINE, AJ
通讯作者: LEVINE, AJ
DOI: 10.1073/pnas.83.14.5141
发表时间: 1986-07-01
影响因子: 11.1
作者:
KORC, M;MELTZER, P;TRENT, J
通讯作者: TRENT, J
自发永生化 3T12 小鼠胚胎细胞中存在 p53 突变,但 3T3 小鼠胚胎细胞中没有 p53 突变。
DOI: --
发表时间: 1992
期刊: Oncogene
影响因子: 8
作者:
Rittling,SR;Denhardt,DT
通讯作者: Denhardt,DT