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475194 occurrences (No.33 in the rank) during 5 years in the PubMed. [no cache] 500 found

283) The inhibitory effects of ERK inhibitor, U0126, on 2-ABP-induced caspase-3 activity were not detected.

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PMID:23836369 DOI:10.1002/tox.21886

2015 Environmental toxicology

* Activation of MAPK pathways and downstream transcription factors in 2-aminobiphenyl-induced apoptosis.

- 2-Aminobiphenyls (2-ABP) induces oxidative DNA damage and leads to apoptosis. The precise signaling pathways of inducing apoptosis in vitro are still unknown. This study provides insight into the relationship between 2-ABP-induced apoptosis and the activation of MAPK and downstream transcription factors using pharmacological inhibitors of ERK, p38, and JNK pathways. Results showed that 2-ABP induced the activation of ERK and JNK but not p38. The ERK/JNK pathways downstream transcription factors, c-Jun and ATF-2, were also activated by 2-ABP. The inhibitory effects of ERK inhibitor, U0126, on 2-ABP-induced caspase-3 activity were not detected. However, JNK inhibitor, SP600125, significantly attenuated the caspase-3 activity induced by 2-ABP. The expression of the transcription factors c-Jun and ATF-2 were decreased in 2-ABP treated cells in the presence of ERK/JNK inhibitors, suggesting that the expression of ERK/JNK pathways leads to the downstream activation of c-Jun and ATF-2. N-acetylcysteine, an ROS scavenger, inhibited 2-ABP-induced activation of ERK and JNK, the cell death and caspase-3 activity, which suggested that oxidative stress plays a crucial role in apoptosis through activation of caspase-3 in a ROS/JNK-dependent signaling cascade.

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(1)70 of	(13)6 patterns	(25)3 but	(37)2 functional
(2)54 null	(14)5 may	(26)3 changes	(38)2 increased
(3)49 and	(15)5 using	(27)3 for	(39)2 induces
(4)45 in	(16)5 with	(28)3 measured	(40)2 level
(5)17 was	(17)4 at	(29)3 through	(41)2 or
(6)11 against	(18)4 levels	(30)2 Questionnaire	(42)2 over
(7)10 during	(19)4 on	(31)2 after	(43)2 promotion
(8)9 (PA)	(20)4 which	(32)2 between	(44)2 resumption
(9)8 is	(21)4 while	(33)2 calcium	(45)2 than
(10)7 to	(22)3 among	(34)2 compared	(46)2 that
(11)7 were	(23)3 are	(35)2 decreased	(47)2 via
(12)6 by	(24)3 as	(36)2 diary	(48)2 when

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--- WordNet output for activity --- =>活動, 活躍, 働き, 動き, 活気 Overview of noun activity The noun activity has 6 senses (first 3 from tagged texts) 1. (43) activity -- (any specific behavior; "they avoided all recreational activity") 2. (36) action, activity, activeness -- (the state of being active; "his sphere of activity"; "he is out of action") 3. (13) bodily process, body process, bodily function, activity -- (an organic process that takes place in the body; "respiratory activity") 4. activity -- ((chemistry) the capacity of a substance to take part in a chemical reaction; "catalytic activity") 5. natural process, natural action, action, activity -- (a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity") 6. activeness, activity -- (the trait of being active; moving or acting rapidly and energetically; "the level of activity declines with age") --- WordNet end ---