ELIZA

return kwic search for human out of >500 occurrences
482327 occurrences (No.32 in the rank) during 5 years in the PubMed. [no cache] 500 found

121) Although the sirtuin1 (SIRT1) deacetylase is overexpressed in several human cancers and has recently been linked to cancer cell motility as a context-dependent regulator of multiple pathways, its role in Rac1 activation has not been reported.

--- ABSTRACT ---

PMID:24362520 DOI:10.1038/onc.2013.549

2015 Oncogene

* The sirtuins promote Dishevelled-1 scaffolding of TIAM1, Rac activation and cell migration.

- Rac1-GTPases serve as intermediary cellular switches, which conduct transient and constitutive signals from upstream cues, including those from Ras oncoproteins. Although the sirtuin1 (SIRT1) deacetylase is overexpressed in several human cancers and has recently been linked to cancer cell motility as a context-dependent regulator of multiple pathways, its role in Rac1 activation has not been reported. Similarly, SIRT2 has been demonstrated to be upregulated in some cancers; however, studies have also reported its role in tumor suppression. Here, we demonstrate that SIRT1 and SIRT2 positively regulate the levels of Rac1-GTP and the activity of T-cell lymphoma invasion and metastasis 1 (TIAM1), a Rac guanine nucleotide exchange factor (GEF). Transient inhibition of SIRT1 and SIRT2 resulted in increased acetylation of TIAM1, whereas chronic SIRT2 knockdown resulted in enhanced acetylation of TIAM1. SIRT1 regulates Dishevelled (DVL) protein levels in cancer cells, and DVL along with TIAM1 are known to augment Rac activation; however, SIRT1 or 2 has not been previously linked with TIAM1. We found that diminished sirtuin activity led to the disruption of the DVL1-TIAM1 interaction. We hence propose a model for Rac activation where SIRT1/2 positively modulates the DVL/TIAM1/Rac axis and promotes sustained pathway activation.

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[frequency of next (right) word to human]

(1)19 and	(23)3 blood	(45)2 adipose-derived	(67)2 insulin
(2)15 health	(24)3 bronchial	(46)2 amniotic	(68)2 interaction
(3)11 brain	(25)3 dental	(47)2 articular	(69)2 islet
(4)10 breast	(26)3 dermal	(48)2 body,	(70)2 leukocyte
(5)8 body	(27)3 embryonic	(49)2 brain,	(71)2 liver
(6)8 mesenchymal	(28)3 head	(50)2 but	(72)2 microbiota
(7)8 papillomavirus	(29)3 lung	(51)2 cartilage	(73)2 mycetoma
(8)7 bone	(30)3 nasal	(52)2 cerebral	(74)2 neuroblastoma
(9)7 subjects	(31)3 renal	(53)2 chorionic	(75)2 oral
(10)7 umbilical	(32)3 serum	(54)2 consumption,	(76)2 osteosarcoma
(11)6 cancer	(33)3 skin	(55)2 cortical	(77)2 papilloma
(12)6 hepatocytes	(34)3 spinal	(56)2 disease	(78)2 participants
(13)4 null	(35)3 teeth	(57)2 endometrial	(79)2 periodontal
(14)4 MSCs	(36)3 tissues	(58)2 endothelial	(80)2 platelet
(15)4 cancers	(37)2 Alu	(59)2 eye	(81)2 primary
(16)4 cancers,	(38)2 CD34(+)	(60)2 face	(82)2 resources
(17)4 immunodeficiency	(39)2 DMN	(61)2 fibroblasts	(83)2 respiratory
(18)4 model	(40)2 PIF1	(62)2 glioma	(84)2 rights
(19)4 oncology	(41)2 TP	(63)2 health,	(85)2 studies
(20)4 plasma	(42)2 abdomen	(64)2 hepatocellular	(86)2 third
(21)3 Province	(43)2 activity	(65)2 induced	(87)2 tooth
(22)3 acellular	(44)2 adipose	(66)2 infections,

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--- WordNet output for human --- =>人間らしい, 人間の, 人, 人間 Overview of noun human The noun human has 1 sense (first 1 from tagged texts) 1. (5) homo, man, human being, human -- (any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage) Overview of adj human The adj human has 3 senses (first 3 from tagged texts) 1. (46) human -- (characteristic of humanity; "human nature") 2. (19) human -- (relating to a person; "the experiment was conducted on 6 monkeys and 2 human subjects") 3. (15) human -- (having human form or attributes as opposed to those of animals or divine beings; "human beings"; "the human body"; "human kindness"; "human frailty") --- WordNet end ---