Nuclear factor-kappa B and its role in inflammatory lung disease.

Alharbi, Khalid Saad; Fuloria, Neeraj Kumar; Fuloria, Shivkanya; Rahman, Sk Batin; Al-Malki, Waleed Hassan; Javed Shaikh, Mohammad Arshad; Thangavelu, Lakshmi; Singh, Sachin K; Rama Raju, Venkata Sita; Jha, Niraj Kumar; Chellappan, Dinesh Kumar; Dua, Kamal; Gupta, Gaurav

Nuclear factor-kappa B, involved in inflammation, host immune response, cell adhesion, growth signals, cell proliferation, cell differentiation, and apoptosis defense, is a dimeric transcription factor. Inflammation is a key component of many common respiratory disorders, including asthma, COPD, bronchiectasis, and acute respiratory distress syndrome. Many basic transcription factors are found in NF-κB, which is a member of the Rel protein family. Five members of this family c-REL, NF-κB2 (p100/p52), RelA (p65), NF-κB1 (p105/p50), RelB, and RelA (p65) produce 5 transcriptionally active molecules. Proinflammatory cytokines, T lymphocyte, and B lymphocyte cell mitogens, lipopolysaccharides, bacteria, viral proteins, viruses, double-stranded RNA, oxidative stress, physical exertion, various chemotherapeutics are the stimulus responsible for NF-κB activation. NF-κB act as a principal component for several common respiratory illnesses, such as asthma, lung cancer, pulmonary fibrosis, COPD as well as infectious diseases like pneumonia, tuberculosis, COVID-19. Inflammatory lung disease, especially COVID-19, can make NF-κB a key target for drug production.