Abstract:
:Telomere shortening is associated with idiopathic pulmonary fibrosis (IPF), a high-morbidity and high-mortality lung disease of unknown etiology. However, the underlying mechanisms remain largely unclear. In this study, wild-type (WT) mice with normal telomeres and generation 3 (G3) or G2 telomerase RNA component (TERC) knockout Terc-/- mice with short telomeres were treated with and without lipopolysaccharide (LPS) or bleomycin by intratracheal injection. We show that under LPS induction, G3 Terc-/- mice develop aggravated pulmonary fibrosis as indicated by significantly increased α-SMA, collagen I and hydroxyproline content. Interestingly, TGF-β/Smads signaling is markedly activated in the lungs of G3 Terc-/- mice, as indicated by markedly elevated levels of phosphorylated Smad3 and TGF-β1, compared with those of WT mice. This TGF-β/Smads signaling activation is significantly increased in the lungs of LPS-treated G3 Terc-/- mice compared with those of LPS-treated WT or untreated G3 Terc-/- mice. A similar pattern of TGF-β/Smads signaling activation and the enhancing role of telomere shortening in pulmonary fibrosis are also confirmed in bleomycin-induced model. Moreover, LPS challenge produced more present cellular senescence, apoptosis and infiltration of innate immune cells, including macrophages and neutrophils in the lungs of G3 Terc-/- mice, compared with WT mice. To our knowledge, this is the first time to report telomere shortening activated TGF-β/Smads signaling in lungs. Our data suggest that telomere shortening cooperated with environment-induced lung injury accelerates the development of pulmonary fibrosis, and telomere shortening confers an inherent enhancing factor to the genesis of IPF through activation of TGF-β/Smads signaling.
journal_name
Acta Pharmacol Sinjournal_title
Acta pharmacologica Sinicaauthors
Liu YY,Shi Y,Liu Y,Pan XH,Zhang KXdoi
10.1038/s41401-018-0007-9subject
Has Abstractpub_date
2018-11-01 00:00:00pages
1735-1745issue
11eissn
1671-4083issn
1745-7254pii
10.1038/s41401-018-0007-9journal_volume
39pub_type
杂志文章abstract:AIM:To examine the in vitro antitumor activity of resveratrol against multiple myeloma (MM) cell lines (RPMI 8226, U266, and KM3), and the mechanisms involved. METHODS:The growth inhibition of resveratrol was determined by 3-(4, 5-dimethyl-2-thiazyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. The effect of resve...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2006.00343.x
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abstract:AIM:To investigate the effects of diosgenin (Dio), a naturally occurring steroid saponin, on goiter formation in a mouse model of Graves' disease (GD) and the underlying mechanisms. METHODS:Female BALB/c mice were injected with adenovirus expressing the A subunit of thyrotropin receptor to induce GD. The mice were tre...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2013.133
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abstract::The therapeutic outcome of chemotherapy is severely limited by intrinsic or acquired drug resistance, the most common causes of chemotherapy failure. In the past few decades, advancements in nanotechnology have provided alternative strategies for combating tumor drug resistance. Drug-loaded nanoparticles (NPs) have se...
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pub_type: 杂志文章,评审
doi:10.1038/aps.2016.84
更新日期:2017-01-01 00:00:00
abstract:AIM:To evaluate the therapeutic effects of gamichunggantang (GCT) on hyperlipidemia through high cholesterol diet model. GCT is an Oriental herbal medication, which has been used for the treatment of fatty liver, hyperlipidemia or alcoholic liver disease in Daejeon University Oriental Hospital, Korea since 1999. METHO...
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abstract:AIM:To investigate the blood pressure (BP), baroreflex sensitivity (BRS), and organ damage in hybrids of spontaneously hypertensive rats and Sprague-Dawley rats. METHODS:Spontaneously hypertensive rats and Sprague-Dawley rats were crossbred, and the F1 hybrids were inbred randomly to produce an F2 generation. At the a...
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
doi:10.1038/aps.2017.15
更新日期:2017-07-01 00:00:00
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doi:10.1038/aps.2008.26
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doi:
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abstract::Innovative teaching methodologies in different parts of the world are being practiced since last 3 decades. The aim of this review is to report the transition from traditional to innovative self learning process in Ziauddin Medical University, a new medical institute of Pakistan. Various problems encountered have been...
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pub_type: 杂志文章
doi:10.1111/j.1745-7254.2007.00485.x
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
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更新日期:2012-02-01 00:00:00
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
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更新日期:2016-07-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1038/aps.2010.112
更新日期:2010-11-01 00:00:00
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2005.00525.x
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
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更新日期:2016-06-01 00:00:00
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更新日期:2012-07-01 00:00:00
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更新日期:2001-09-01 00:00:00
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更新日期:2014-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2007-11-01 00:00:00
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
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更新日期:2016-02-01 00:00:00
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journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2006.00299.x
更新日期:2006-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2003-09-01 00:00:00