Langerhans cells facilitate epithelial DNA damage and squamous cell carcinoma.
Langerhans cells facilitate epithelial DNA damage and squamous cell carcinoma.
复制标题
Langerhans细胞促进上皮DNA损伤和鳞状细胞癌。
DOI:
10.1126/science.1211600
复制
发表时间:
2012-01-06
期刊:
影响因子:
--
通讯作者:
Girardi M
中科院分区:
文献类型:
--
作者:
Modi BG;Neustadter J;Binda E;Lewis J;Filler RB;Roberts SJ;Kwong BY;Reddy S;Overton JD;Galan A;Tigelaar R;Cai L;Fu P;Shlomchik M;Kaplan DH;Hayday A;Girardi M
Polyaromatic hydrocarbons (PAHs) are prevalent, potent carcinogens, and 7,12-dimethylbenz[a]anthracene (DMBA) is a model PAH widely used to study tumorigenesis. Mice lacking Langerhans cells (LCs), a signatory epidermal dendritic cell (DC), are protected from cutaneous chemical carcinogenesis, independent of T cell immunity. Investigation of the underlying mechanism revealed that LC-deficient skin was relatively resistant to DMBA-induced DNA damage. LCs efficiently metabolized DMBA to DMBA-trans-3,4-diol, an intermediate proximal to oncogenic Hras mutation, and DMBA-treated LC-deficient skin contained significantly fewer Hras mutations. Moreover, DMBA-trans-3,4-diol application bypassed tumor resistance in LC-deficient mice. Additionally, the genotoxic impact of DMBA on human keratinocytes was significantly increased by prior incubation with human-derived LC. Thus, tissue-associated DC can enhance chemical carcinogenesis via PAH metabolism, highlighting the complex relation between immune cells and carcinogenesis.
登录
查看更多内容
影响因子:
64.8
作者:
BALMAIN, A;RAMSDEN, M;SMITH, J
通讯作者:
SMITH, J
影响因子:
6.5
作者:
Paus, R;van der Veen, C;Hofmann, U
通讯作者:
Hofmann, U
影响因子:
11.2
作者:
Trempus, Carol S.;Morris, Rebecca J.;Tennant, Raymond W.
通讯作者:
Tennant, Raymond W.
影响因子:
32.4
作者:
Kaplan, DH;Jenison, MC;Shlomchik, MJ
通讯作者:
Shlomchik, MJ
影响因子:
8.7
作者:
Romani N;Clausen BE;Stoitzner P
通讯作者:
Stoitzner P