Evidence map›Paper›PMID 30727993›Full record

ArticleBMC pulmonary medicine2019

CD147 increases mucus secretion induced by cigarette smoke in COPD.

Qiao Yu, Danhui Yang, Xi Chen, Qiong Chen

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% of its field
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Airway Spatial Transcriptomics in Smoking.medRxiv : the preprint server for health sciences · 2025
    Article
  4. The Functions of SARS-CoV-2 Receptors in Diabetes-Related Severe COVID-19.International journal of molecular sciences · 2024
    Review
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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

4 authors at 1 institution in 1 country.

Qiao YuDepartment of Gerontology and Respirology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, China.
Danhui YangDepartment of Respiratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
Xi ChenDepartment of Respiratory Medicine, Xiangya of Central South University, Changsha, 410008, Hunan, China.
Qiong ChenDepartment of Gerontology and Respirology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, China. qiongch@163.com.ORCID http://orcid.org/0000-0002-2534-8834
Central South University · CN

Funding

National Natural Science Foundation of China 81500034
6 · The paper itself

Abstract

backgroundCD147 is expressed in many tissues and is involved in many inflammatory diseases. Emerging evidence suggests that the overproduction of mucus is a malignant factor in chronic obstructive pulmonary disease (COPD), which results in severe airway obstruction and repeated airway infections. However, it is still unclear whether CD147 is involved in mucus production in COPD.

methodsWe determined the expression levels of CD147 and MUC5AC by immunohistochemistry in 42 human lung specimens from three groups (non-smokers without COPD, smokers without COPD and smokers with COPD). For the in vitro experiment, human bronchial epithelial (HBE) cells were treated with cigarette smoke (CS) extract to establish a mucus secretion model; then, CD147 and MUC5AC production were detected by RT-PCR, Western blotting and ELISA. To determine how CD147 is involved in MUC5AC secretion, HBE cells were transfected with small interfering RNA to silence CD147 and pretreated with inhibitors of MMP9 and p38 MAPK, which are common signaling molecules involved in MUC5AC secretion; then, MUC5AC expression was evaluated.

resultsCompared with the expression levels in the non-smokers and smokers without COPD, CD147 and MUC5AC expression levels were higher in the smokers with COPD. In the in vitro experiment, CD147 and MUC5AC expression levels were significantly increased after CS extract incubation compared with those after no treatment. Silencing CD147 by siRNA decreased the CS extract-induced MUC5AC secretion and MMP9 and phosphorylated p38 MAPK production. In addition, inhibiting MMP9 or p38 MAPK decreased the CS extract-induced MUC5AC secretion.

conclusionsIn lung specimens, CD147 and MUC5AC expression levels were increased in COPD patients. Increased CD147 levels induced by CS extract could stimulate MUC5AC secretion through the MMP9 and p38 MAPK signaling pathway in HBE cells. Therefore, the regulation of CD147 could be a promising target for mucus hypersecretion in COPD.

Indexed as

AgedBasiginCells, CulturedCigarette SmokingEpithelial CellsFemaleHumansLungMaleMAP Kinase Signaling SystemMatrix Metalloproteinase 9Middle AgedMucin 5ACp38 Mitogen-Activated Protein KinasesPulmonary Disease, Chronic ObstructiveBasiginBSG protein, humanMatrix Metalloproteinase 9MMP9 protein, humanMUC5AC protein, humanMucin 5ACp38 Mitogen-Activated Protein KinasesCD147Cigarette smoke extractCOPDMMP9MUC5ACMucusp38 MAPK

Identifiers

PMID30727993
PMCPMC6364420
OpenAlexW2922291512

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.