Evidence map›Paper›PMID 31593750›Full record

ArticleToxicology letters2019

Mitochondrial dysfunction is associated with Miro1 reduction in lung epithelial cells by cigarette smoke.

Isaac K Sundar, Krishna P Maremanda, Irfan Rahman

Abstract read
In one paragraph

Article in Toxicology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing 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

38 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

3 authors.

Isaac K SundarDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.
Krishna P MaremandaDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.
Irfan RahmanDepartment of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA. Electronic address: irfan_rahman@urmc.rochester.edu.

Funding

Inflammatory and Dysregulated Repair Responses to Inhaled NicotineR01HL135613 · NHLBI · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2017 to 2021
$2.7M
Molecular clock dysfunction in lung cellular senescence by environmental tobacco smokeR01ES029177 · NIEHS · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2019 to 2023
$1.7M
Molecular Clock REV-ERBα in COPD and its exacerbationsR01HL133404 · NHLBI · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2017 to 2020
$1.5M
Mechanism of Mitochondrial Dysfunction in COPDR01HL137738 · NHLBI · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2017 to 2020
$1.5M
Exosomes in Environmental Tobacco Smoke-induced Lung Cellular SenescenceR21ES028006 · NIEHS · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2017 to 2018
$423k
NHLBI NIH HHS R01 HL133404NHLBI NIH HHS R01 HL135613NHLBI NIH HHS R01 HL137738NIEHS NIH HHS R01 ES029177NIEHS NIH HHS R21 ES028006
6 · The paper itself

Abstract

Cigarette smoke (CS) is known to cause mitochondrial dysfunction leading to cellular senescence in lung cells. We determined the mechanism of mitochondrial dysfunction by CS in lung epithelial cells. CS extract (CSE) treatment differentially affected mitochondrial function, such as membrane potential, mitochondrial reactive oxygen species (mtROS) and mitochrondrial mass as analyzed by FACS, and were associated with altered oxidative phosphorylation (OXPHOS) protein levels (Complexes I-IV) in primary lung epithelial cells (SAEC and NHBE), and (complexes I and II) in BEAS2B cells. There were dose- and time-dependent changes in mitochondrial respiration (oxygen consumption rate parameters i.e. maximal respiration, ATP production and spare capacity, measured by the Seahorse analyzer) in control vs. CSE treated BEAS2B and NHBE/DHBE cells. Electron microscopy (EM) analysis revealed perinuclear clustering by localization and increased mitochondrial fragmentation by fragement length analysis. Immunoblot analysis revealed CS-mediated increase in Drp1 and decrease in Mfn2 levels that are involved in mitochondrial fission/fusion process. CSE treatment reduced Miro1 and Pink1 abundance that play a crucial role in the intercellular transfer mechanism and mitophagy process. Overall, these findings highlight the role of Miro1 in context of CS-induced mitochondrial dysfunction in lung epithelial cells that may contribute to the pathogenesis of chronic inflammatory lung diseases.

Indexed as

Case-Control StudiesCells, CulturedCigarette SmokingDown-RegulationEnergy MetabolismEpithelial CellsHumansLungMitochondriaMitochondrial ProteinsMitophagyOxidative StressPulmonary Disease, Chronic Obstructiverho GTP-Binding ProteinsSignal TransductionSmokeMitochondrial Proteinsrho GTP-Binding ProteinsRHOT1 protein, humanSmokeCigarette smokeEpithelial cellsMiro1Mitochondrial dysfunctionOxidative stress

Identifiers

PMID31593750
PMCPMC6935378

What OpenQuestion holds

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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.