Abstract:
OBJECTIVES:Glucagon-like peptide 2 (GLP2) is involved in the regulation of energy absorption and metabolism. Despite the importance of the GLP2 signalling mechanisms on osteoclast, little has been studied on how GLP2 works during osteoclastogenesis. MATERIALS AND METHODS:RAW264.7 cells were infected with rLV-Green-GLP2. The induction of osteoclasts was performed by RANKL. TRAP were detected by RT-PCR, Western blotting and staining. Total nitric oxide and total NOS activity were measured. Cells apoptosis was detected by Hoest33258 and Annix V staining. Animal test, chromatin immunoprecipitation (CHIP), co-immunoprecipitation(IP) and luciferase reporter assay were also performed. RESULTS:We indicate that GLP2 is associated with osteoporosis-related factors in aged rats, including BALP, TRAP, IL6, TNFα, Nitric Oxide (NO), iNOS, calcitonin and occludin. Moreover, GLP2 is demonstrated to result in negative action during proliferation of tartrate-resistant acid phosphatase-positive (TRAP+) osteoclasts. Furthermore, GLP2 decreases osteoclasts induced from monocyte/macrophage cells RAW264.7 as well as the serum TRAP activity in aged rats. Mechanistic investigations reveal GLP2 enhances the expression of iNOS through stimulating the activity of TGFβ-Smad2/3 signalling in osteoclasts. In particular, inhibition of TGFβ fully abrogates this function of GLP2 in osteoclasts. Strikingly, overexpression of GLP2 significantly increases the product of nitric oxide via iNOS which promotes apoptosis of osteoclasts by decreasing bcl2 or increasing caspase3. Thereby, the ability of GLP2 to regulate apoptosis depends on TGFβ-Smad2/3-iNOS-NO signalling pathway since total NOS inhibitor L-NMMA specifically inhibits the actions by GLP2. CONCLUSIONS:GLP2 induces apoptosis via TGFβ-Smad2/3 signalling, which contributes to the inhibition of the proliferation of osteoclasts and which may provide potential therapeutic targets for the treatment of osteoporosis.
journal_name
Cell Prolifjournal_title
Cell proliferationauthors
Lu Y,Lu D,Hu Ydoi
10.1111/cpr.12443subject
Has Abstractpub_date
2018-08-01 00:00:00pages
e12443issue
4eissn
0960-7722issn
1365-2184journal_volume
51pub_type
杂志文章abstract::The effect of various GnRH analogues, and their conjugates on proliferation, clonogenicity and cell cycle phase distribution of MCF-7 and Ishikawa human cancer cell lines was studied. GnRH-III, a sea lamprey GnRH analogue reduced cell proliferation by 35% and clonogenicity by 55%. Structural modifications either decre...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1046/j.1365-2184.2000.00180.x
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abstract::Aberrant crypt foci (ACF) have been identified on the colonic mucosal surface of rodents treated with colon carcinogens and of humans after methylene-blue staining and observation under a light microscope. Several lines of evidence strongly suggest that ACF with certain morphological, histological, cell kinetics, and ...
journal_title:Cell proliferation
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abstract::On 31 May 2010, 14 072 567 bone marrow/apheresis donors registered in 44 countries and 426 501 cord blood units banked in 26 countries for public use were available to treat candidates to haemopoietic stem cell transplant lacking a family related compatible donor. Despite these impressive numbers, additional efforts a...
journal_title:Cell proliferation
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doi:10.1111/j.1365-2184.2010.00720.x
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journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/cpr.12801
更新日期:2020-05-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2006.00380.x
更新日期:2006-06-01 00:00:00
abstract::A mathematical model for the cell cycle is proposed that incorporates the known biochemical reactions involving both cyclin A and cyclin B, the interactions of these cyclins with cdc2 and cdk2, and the controlling effects of cdc25 and weel. The model also postulates the existence of an as yet unknown phosphatase invol...
journal_title:Cell proliferation
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doi:10.1111/j.1365-2184.1994.tb01409.x
更新日期:1994-02-01 00:00:00
abstract::In this paper we describe the application of a non-radioactive DNA double labelling and staining method to an analysis of cell proliferation kinetics by flow cytometry, aimed at the direct measurement of recruitment rates in cell cultures. The method is based on the application of two halogenated deoxyuridines: iodode...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1993.tb00009.x
更新日期:1993-01-01 00:00:00
abstract::Chronic kidney disease (CKD) is a severe health problem worldwide, and vascular calcification (VC) contributes substantially to the cardiovascular morbidity and high mortality of CKD. CKD is often accompanied by a variety of pathophysiological states, such as inflammation, oxidative stress, hyperglycaemia, hyperparath...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/cpr.12980
更新日期:2021-01-27 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1992.tb01444.x
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journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2184.35.s1.8.x
更新日期:2002-08-01 00:00:00
abstract::The cell cycle is controlled by numerous mechanisms ensuring correct cell division. This review will focus on these mechanisms, i.e. regulation of cyclin-dependent kinases (CDK) by cyclins, CDK inhibitors and phosphorylating events. The quality checkpoints activated after DNA damage are also discussed. The complexity ...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2184.2003.00266.x
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVES:This study was designed to investigate the role of circ_0078767/miR-330-3p/RASSF1A in non-small-cell lung cancer (NSCLC). Bioinformatic analysis was performed to screen for the differentially expressed genes in NSCLC tissues from adjacent lung tissues. MATERIALS AND METHODS:qRT-PCR was used to detect the RN...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12548
更新日期:2019-03-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12539
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:To assess the expression, prognostic value, and functionality of T-lymphokine-activated killer (T-LAK) cell-originated protein kinase (TOPK) in chordoma pathogenesis. MATERIALS AND METHODS:TOPK expression in chordoma was assessed via immunohistochemical staining of a tissue microarray (TMA) and correlated w...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12901
更新日期:2020-10-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2010.00684.x
更新日期:2010-08-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2184.2008.00487.x
更新日期:2008-02-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12517
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:Enterochromaffin (EC) cells have been associated with functional gastrointestinal disorders such as IBS. Recently, we found that glial cell-derived neurotrophic factor (GDNF)-rearranged during transfection (RET) localized in EC cells in human colonic epithelia. Here, we examine the role of GDNF-RET in the pa...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12889
更新日期:2020-10-01 00:00:00
abstract::WR-1065 (2-[(aminopropyl)amino]ethanethiol) reduces cytotoxic and mutagenic effects caused by exposure of cells to radiation and chemotherapeutic drugs, but the mechanisms involved are not fully known. We have observed an accumulation of cells in G2 in WR-1065 treated Chinese hamster ovary cells grown in alpha-minimal...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1992.tb01466.x
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abstract::The present study was designed to analyse the effect of red blood cells on T-cell proliferation and expansion. A comparative study was done in peripheral blood cell cultures stimulated with phytohemagglutinin, with or without red blood cells. The presence of red blood cells had a consistent enhancing effect on T lymph...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1046/j.1365-2184.2001.00222.x
更新日期:2001-12-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00538.x
更新日期:2008-06-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章,meta分析
doi:10.1111/cpr.12537
更新日期:2019-03-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12676
更新日期:2019-11-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12917
更新日期:2020-11-01 00:00:00
abstract::Natural compounds derived from plant sources are well characterized as possessing a wide variety of remarkable anti-tumour properties, for example modulating programmed cell death, primarily referring to apoptosis, and autophagy. Distinct from apoptosis, autophagy (an evolutionarily conserved, multi-step lysosomal deg...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2184.2012.00833.x
更新日期:2012-10-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00562.x
更新日期:2008-12-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/cpr.12095
更新日期:2014-04-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12730
更新日期:2020-01-01 00:00:00
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journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12251
更新日期:2016-06-01 00:00:00
abstract::Stem cells are regenerating medicine. Advances in stem cell biology, and bone marrow-derived mesenchymal stem cells in particular, are demonstrating that many clinical options once thought to be science fiction may be attainable as fact. The extra- and intra-cellular signalling used by stem cells as they differentiate...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2184.2004.00303.x
更新日期:2004-02-01 00:00:00