Effects of photochemically activated alkylating agents of the FR900482 family on chromatin.
Effects of photochemically activated alkylating agents of the FR900482 family on chromatin.
复制标题
FR900482 家族光化学活化烷化剂对染色质的影响。
DOI:
10.1016/j.chembiol.2007.04.004
复制
发表时间:
2007
影响因子:
--
通讯作者:
Luger,Karolin
中科院分区:
文献类型:
--
作者:
Subramanian,Vidya;Ducept,Pascal;Williams,RobertM;Luger,Karolin
Bioreductive alkylating agents are an important class of clinical antitumor antibiotics that crosslink and monoalkylate DNA. Here, we use a synthetic, photochemically activated derivative of FR400482 to investigate the molecular mechanism of this class of drugs in a biologically relevant context. We find that the organization of DNA into nucleosomes effectively protects it against drug-mediated crosslinking, while permitting monoalkylation. This modification has the potential to lead to the formation of covalent crosslinks between chromatin and nuclear proteins. Using in vitro approaches, we found that interstrand crosslinking of free DNA results in a significant decrease in basal and activated transcription. Finally, crosslinked plasmid DNA is inefficiently assembled into chromatin. Our studies suggest pathways for the clinical effectiveness of this class of reagents.
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DOI:
10.1046/j.1432-1033.2002.02890.x
发表时间:
2002-05
期刊:
European journal of biochemistry
影响因子:
--
作者:
J. Tyler
通讯作者:
J. Tyler
DOI:
--
发表时间:
1998
期刊:
Japanese journal of cancer research : Gann
影响因子:
--
作者:
Y. Naoe;M. Inami;Shoji Takagaki;S. Matsumoto;I. Kawamura;F. Nishigaki;S. Tsujimoto;T. Manda;K. Shimomura
通讯作者:
K. Shimomura
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
H. Kohn;V. Li;P. Schiltz;M. Tang
通讯作者:
M. Tang
影响因子:
3.6
作者:
Pan,SS;Iracki,T;Bachur,NR
通讯作者:
Bachur,NR
影响因子:
5.2
作者:
Judd,TedC;Williams,RobertM
通讯作者:
Williams,RobertM