PMID- 29518028 OWN - NLM STAT- MEDLINE DCOM- 20180814 LR - 20211204 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 19 IP - 3 DP - 2018 Mar 8 TI - The Role of the Mammalian Target of Rapamycin (mTOR) in Pulmonary Fibrosis. LID - 10.3390/ijms19030778 [doi] LID - 778 AB - The phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR)-dependent pathway is one of the most integral pathways linked to cell metabolism, proliferation, differentiation, and survival. This pathway is dysregulated in a variety of diseases, including neoplasia, immune-mediated diseases, and fibroproliferative diseases such as pulmonary fibrosis. The mTOR kinase is frequently referred to as the master regulator of this pathway. Alterations in mTOR signaling are closely associated with dysregulation of autophagy, inflammation, and cell growth and survival, leading to the development of lung fibrosis. Inhibitors of mTOR have been widely studied in cancer therapy, as they may sensitize cancer cells to radiation therapy. Studies also suggest that mTOR inhibitors are promising modulators of fibroproliferative diseases such as idiopathic pulmonary fibrosis (IPF) and radiation-induced pulmonary fibrosis (RIPF). Therefore, mTOR represents an attractive and unique therapeutic target in pulmonary fibrosis. In this review, we discuss the pathological role of mTOR kinase in pulmonary fibrosis and examine how mTOR inhibitors may mitigate fibrotic progression. FAU - Lawrence, Jessica AU - Lawrence J AUID- ORCID: 0000-0002-8315-1909 AD - Department of Veterinary Clinical Sciences, College of Veterinary Medicine & Masonic Cancer Center, University of Minnesota, St. Paul, MN 55108, USA. jlawrenc@umn.edu. FAU - Nho, Richard AU - Nho R AD - Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, University of Minnesota, 420 Delaware SE, Minneapolis, MN 55455, USA. nhoxx002@umn.edu. LA - eng GR - R01 HL114662/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Review DEP - 20180308 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Protein Kinase Inhibitors) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - Humans MH - Phosphatidylinositol 3-Kinases/metabolism MH - Protein Kinase Inhibitors/*pharmacology/therapeutic use MH - Proto-Oncogene Proteins c-akt/metabolism MH - Pulmonary Fibrosis/drug therapy/*metabolism MH - Signal Transduction MH - TOR Serine-Threonine Kinases/antagonists & inhibitors/genetics/*metabolism PMC - PMC5877639 OTO - NOTNLM OT - fibrosis OT - idiopathic pulmonary fibrosis (IPF) OT - mammalian target of rapamycin (mTOR) OT - phosphoinositide 3-kinase (PI3K) OT - protein kinase B (AKT) OT - radiation-induced pulmonary fibrosis (RIPF) COIS- The authors declare no conflict of interest. EDAT- 2018/03/09 06:00 MHDA- 2018/08/15 06:00 PMCR- 2018/03/01 CRDT- 2018/03/09 06:00 PHST- 2018/01/31 00:00 [received] PHST- 2018/02/22 00:00 [revised] PHST- 2018/03/06 00:00 [accepted] PHST- 2018/03/09 06:00 [entrez] PHST- 2018/03/09 06:00 [pubmed] PHST- 2018/08/15 06:00 [medline] PHST- 2018/03/01 00:00 [pmc-release] AID - ijms19030778 [pii] AID - ijms-19-00778 [pii] AID - 10.3390/ijms19030778 [doi] PST - epublish SO - Int J Mol Sci. 2018 Mar 8;19(3):778. doi: 10.3390/ijms19030778.