African Journal of Respiratory Medicine
Molecular pathways involved in the development of lung fibrosis in post-covid-19 patients.

Commentary - (2023) Volume 18, Issue 2

Sacha Brown*
*Correspondence: Sacha Brown, Department of Pulmonology, Mahidol University, Thailand, Email:

Received: 01-Mar-2023, Manuscript No. ajrm-23-98177; Editor assigned: 03-Mar-2023, Pre QC No. ajrm-23-98177 (PQ); Reviewed: 17-Mar-2023, QC No. ajrm-23-98177; Revised: 22-Mar-2023, Manuscript No. ajrm-23-98177 (R); Published: 29-Mar-2023, DOI: 10.54931/1747-5597.23.18.72

Department of Pulmonology, Mahidol University, Thailand


Covid illness 2019 (Coronavirus), brought about by serious intense respiratory disorder Covid 2 (SARS-CoV-2), has tainted in excess of 523 million people and caused over 6.3 million passings overall until May 2022. SARS-CoV-2 fundamentally influences the lungs, prompting a scope of clinical signs, from asymptomatic to extreme structure portrayed by intense respiratory misery disorder and some resistant intervened lung complexities, that require concentrated care therapy and mechanical ventilation and can at last bring about respiratory disappointment and demise.

An arising intricacy of SARS-CoV-2 disease is aspiratory fibrosis. A new meta-investigation concentrated by Hama Amin et al. shows that a huge piece of recuperated Coronavirus patients (44.9%) seem to have created pneumonic fibrosis, which might continue over the long haul. The pervasiveness of post-Coronavirus fibrosis will turn out to be clear in time, yet early examination from patients with Coronavirus featured an elevated degree of fibrotic lung capability irregularities. In a new report, McGroder et al. tracked down that among overcomers of serious Coronavirus, 20% of non-precisely ventilated and 72% of precisely ventilated patients had fibrotic-like radiographic irregularities 4 months after hospitalization, which corresponds with loss of lung capability and hack. Likewise, Aul et al. detailed that patients who had serious Coronavirus contamination, especially the people who were intubated and who have diligent shortness of breath are in danger of creating post-Coronavirus pneumonic fibrosis. In a new report, they showed that up to 9.3% of post-Coronavirus patients with diligent respiratory side effects present pneumonic fibrosis. In a multicentric observational review including 600 Coronavirus cases with lung contribution, Patil et al. noticed lung fibrosis in 13.66% of post-Coronavirus pneumonia patients.

Idiopathic aspiratory fibrosis is the prototype moderate fibrosing interstitial lung illness, of obscure etiology and fix which prompts quick passing (2-3 years after conclusion). IPF is described by moderate and irreversible annihilation of the lung engineering brought about by extreme extracellular grid testimony and rebuilding, bringing about the development of fibrotic scar that eventually prompts organ obliteration and passing from respiratory disappointment. microRNAs (miRNAs) are little noncoding RNA particles (20-22 nucleotides) that post-transcriptionally balance quality articulation by hindering the interpretation or initiating debasement of target mRNAs. A few examinations revealed the dysregulation of the degrees of circling miRNAs in lung illnesses. Beforehand, we recognized a remarkable mark of three sputum-determined miRNAs introducing a distorted articulation in IPF patients contrasted with solid contributors. Other than their ability as possible biomarkers of lung infections, miRNAs are fundamental controllers of different cell processes, including fibrosis. A few examinations have shown that miRNAs likewise partake in SARS-CoV-2 disease and pathogenesis through various components, for example, have cell miRNA articulation disrupting SARSCoV- 2 cell section; SARS-CoV-2 determined RNA records going about as serious endogenous RNAs that might weaken have cell miRNA articulation; and host cell miRNA articulation tweaking SARS-CoV-2 replication. Moreover, miRNAs have additionally been embroiled in Coronavirus related appearances, including aspiratory fibrosis. Since a piece of post-Coronavirus patients creates pneumonic fibrosis, we conjecture that Coronavirus and IPF patients share variant communicated miRNAs that might be ensnared in lung fibrosis. Consequently, the target of this orderly audit was to recognize miRNAs introducing comparative adjustments in Coronavirus and IPF, and to introduce their effect on fibrogenesis.


The authors are very thankful and honoured to publish this article in the respective Journal and are also very great full to the reviewers for their positive response to this article publication.

Conflict of Interest

We have no conflict of interests to disclose and the manuscript has been read and approved by all named authors.

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