ELIZA

return kwic search for expression of out of >500 occurrences
286252 occurrences (No.88 in the rank) during 5 years in the PubMed. [cache]

135) Taken together, the data demonstrate that elevated expression of CCN1 by dermal fibroblasts functions as a key mediator of dermal aging.

--- ABSTRACT ---

PMID:32800875 DOI:10.1016/j.jid.2020.07.019

2021 The Journal of investigative dermatology

* Dermal Fibroblast CCN1 Expression in Mice Recapitulates Human Skin Dermal Aging.

- The aging process deleteriously alters the structure and function of dermal collagen. These alterations result in thinning, fragility, wrinkles, laxity, impaired wound healing, and a microenvironment conducive to cancer. However, the key factors responsible for these changes have not been fully elucidated, and relevant models for the study of skin aging progression are lacking. CCN1, a secreted extracellular matrix‒associated matricellular protein, is elevated in dermal fibroblasts in aged human skin. Toward constructing a mouse model to study the key factors involved in skin-aging progression, we demonstrate that transgenic mice, with selective expression of CCN1 in dermal fibroblasts (COL1A2-CCN1), display accelerated skin dermal aging. The aged phenotype in COL1A2-CCN1 mice resembles aged human dermis: the skin is wrinkled and the dermis is thin and composed of loose, disorganized, and fragmented collagen fibrils. These dermal alterations reflect reduced production of collagen due to impaired TGFβ signaling and increased expression of matrix metalloproteinases driving the induction of c-Jun/activator protein-1. Importantly, similar mechanisms drive human dermal aging. Taken together, the data demonstrate that elevated expression of CCN1 by dermal fibroblasts functions as a key mediator of dermal aging. The COL1A2-CCN1 mouse model provides a novel tool for understanding and studying the mechanisms of skin aging and age-related skin disorders.

--- ABSTRACT END ---

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(1)32 the	(13)4 mutant	(24)2 KIF20B	(36)2 heat
(2)18 genes	(14)4 specific	(25)2 Ki-67	(37)2 miR-296
(4)8 a	(15)3 many	(26)2 MMP-1	(38)2 miR-627
(5)7 these	(16)3 mitochondrial	(27)2 NCS1	(39)2 miRNAs
(6)6 nuclear	(17)3 multiple	(29)2 SLCO2B1	(40)2 oncoproteins,
(7)5 Staphylococcus	(18)3 several	(30)2 VEGF	(41)2 platelet-derived
(8)5 pro-inflammatory	(19)3 vascular	(31)2 asSuGR,	(42)2 recombinant
(9)4 CYP3A4	(20)2 ACE-2	(32)2 cytokines/chemokines	(43)2 tight
(10)4 both	(21)2 ASIC1a,	(33)2 farnesoid
(11)4 inflammatory	(22)2 ATG5	(34)2 fibroblast
(12)4 its	(23)2 CCN1	(35)2 fibrogenic

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--- WordNet output for expression --- =>表現すること, 式, 表現, 表示, 言い回し, 表現法, 表情 Overview of noun expression The noun expression has 9 senses (first 6 from tagged texts) 1. (23) expression, look, aspect, facial expression, face -- (the feelings expressed on a person's face; "a sad expression"; "a look of triumph"; "an angry face") 2. (18) expression, manifestation, reflection, reflexion -- (expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition") 3. (15) expression, verbal expression, verbalism -- (the communication (in speech or writing) of your beliefs or opinions; "expressions of good will"; "he helped me find verbal expression for my ideas"; "the idea was immediate but the verbalism took hours") 4. (5) saying, expression, locution -- (a word or phrase that particular people use in particular situations; "pardon the expression") 5. (4) formulation, expression -- (the style of expressing yourself; "he suggested a better formulation"; "his manner of expression showed how much he cared") 6. (4) formula, expression -- (a group of symbols that make a mathematical statement) 7. expression -- ((genetics) the process of expressing a gene) 8. construction, grammatical construction, expression -- (a group of words that form a constituent of a sentence and are considered as a single unit; "I concluded from his awkward constructions that he was a foreigner") 9. expression -- (the act of forcing something out by squeezing or pressing; "the expression of milk from her breast") --- WordNet end ---