Evidence map›Paper›PMID 36544674›Full record

ArticleAnnals of translational medicine2022

Hypoxia-inducible factor 1α enhances RANKL-induced osteoclast differentiation by upregulating the MAPK pathway.

Dong Wang, Lin Liu, Zechao Qu, Bo Zhang, Xiangcheng Gao, Wangli Huang, Mingzhe Feng, Yining Gong, Lingbo Kong, Yanjun Wang and 1 more

Abstract read
In one paragraph

Article in Annals of translational medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Dong Wang *Department of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Lin Liu *Department of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Zechao QuDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Bo ZhangDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Xiangcheng GaoDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Wangli HuangDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Mingzhe FengDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Yining GongDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Lingbo KongDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Yanjun WangDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Liang YanDepartment of Orthopedic Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Hypoxia (low-oxygen tension) and excessive osteoclast activation are common conditions in many bone loss diseases, such as osteoporosis, rheumatoid arthritis (RA), and pathologic fractures. Hypoxia-inducible factor 1 alpha (HIF1α) regulates cellular responses to hypoxic conditions. However, it is not yet known how HIF1α directly affects osteoclast differentiation and activation. This study sought to. explore the effects of HIF1α on osteoclast differentiation and it's molecular mechanisms. Methods: L-mimosine, a prolyl hydroxylase (PHDs) domain inhibitor, was used to stabilize HIF1α in normoxia. In the presence of receptor activator of nuclear factor-kB (NF-kB) ligand (RANKL), RAW264.7 cells were cultured and stimulated by treatment with L-mimosine at several doses to maintain various levels of intracellular HIF1α. The multi-nucleated cells were assessed by a tartrate-resistant acid phosphatase (TRAP) and F-actin ring staining assays. The osteoclast-specific genes, such as Cathepsin K, β3-Integrin, TRAP, c-Fos, nuclear factor of activated T cells, cytoplasmic 1 (NFATc1), and matrix metallo-proteinase 9 (MMP9), were analyzed by real time-polymerase chain reaction (RT-PCR). The expression of relevant proteins was analyzed by Western blot. Results: L-mimosine increased the content of intracellular HIF1α in a dose-dependent manner, which in turn promoted RANKL-induced osteoclast formation and relevant protein expression by upregulating the mitogen-activated protein kinase (MAPK) pathways. Conclusions: Our findings suggest that HIF1α directly increases the osteoclast differentiation of RANKL-mediated RAW264.7 cells

Indexed as

Hypoxia-inducible factor 1 alpha (HIF1α)L-mimosinemitogen-activated protein kinase pathway (MAPK pathway)osteoclastRAW264.7 cells

Identifiers

PMID36544674
PMCPMC9761153

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.