PMID- 36293512 OWN - NLM STAT- MEDLINE DCOM- 20221028 LR - 20221030 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 20 DP - 2022 Oct 21 TI - Inflammation in Pulmonary Hypertension and Edema Induced by Hypobaric Hypoxia Exposure. LID - 10.3390/ijms232012656 [doi] LID - 12656 AB - Exposure to high altitudes generates a decrease in the partial pressure of oxygen, triggering a hypobaric hypoxic condition. This condition produces pathophysiologic alterations in an organism. In the lung, one of the principal responses to hypoxia is the development of hypoxic pulmonary vasoconstriction (HPV), which improves gas exchange. However, when HPV is exacerbated, it induces high-altitude pulmonary hypertension (HAPH). Another important illness in hypobaric hypoxia is high-altitude pulmonary edema (HAPE), which occurs under acute exposure. Several studies have shown that inflammatory processes are activated in high-altitude illnesses, highlighting the importance of the crosstalk between hypoxia and inflammation. The aim of this review is to determine the inflammatory pathways involved in hypobaric hypoxia, to investigate the key role of inflammation in lung pathologies, such as HAPH and HAPE, and to summarize different anti-inflammatory treatment approaches for these high-altitude illnesses. In conclusion, both HAPE and HAPH show an increase in inflammatory cell infiltration (macrophages and neutrophils), cytokine levels (IL-6, TNF-alpha and IL-1beta), chemokine levels (MCP-1), and cell adhesion molecule levels (ICAM-1 and VCAM-1), and anti-inflammatory treatments (decreasing all inflammatory components mentioned above) seem to be promising mitigation strategies for treating lung pathologies associated with high-altitude exposure. FAU - El Alam, Samia AU - El Alam S AD - Institute of Health Studies, Arturo Prat University, Iquique 1100000, Chile. AD - Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and Its Health Sequelae, Hamburg (Germany) and Iquique (Chile), Avenida Arturo Prat 2120, Iquique 1110939, Chile. FAU - Pena, Eduardo AU - Pena E AUID- ORCID: 0000-0003-2664-1722 AD - Institute of Health Studies, Arturo Prat University, Iquique 1100000, Chile. AD - Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and Its Health Sequelae, Hamburg (Germany) and Iquique (Chile), Avenida Arturo Prat 2120, Iquique 1110939, Chile. FAU - Aguilera, Diego AU - Aguilera D AD - Institute of Health Studies, Arturo Prat University, Iquique 1100000, Chile. FAU - Siques, Patricia AU - Siques P AUID- ORCID: 0000-0002-4963-195X AD - Institute of Health Studies, Arturo Prat University, Iquique 1100000, Chile. AD - Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and Its Health Sequelae, Hamburg (Germany) and Iquique (Chile), Avenida Arturo Prat 2120, Iquique 1110939, Chile. FAU - Brito, Julio AU - Brito J AUID- ORCID: 0000-0002-0050-8774 AD - Institute of Health Studies, Arturo Prat University, Iquique 1100000, Chile. AD - Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and Its Health Sequelae, Hamburg (Germany) and Iquique (Chile), Avenida Arturo Prat 2120, Iquique 1110939, Chile. LA - eng GR - BIP-400187737-0/FIC GORE-TARAPACA/ PT - Journal Article PT - Review DEP - 20221021 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Interleukin-6) RN - 0 (Cytokines) RN - S88TT14065 (Oxygen) RN - Pulmonary edema of mountaineers SB - IM MH - Humans MH - *Hypertension, Pulmonary/metabolism MH - Intercellular Adhesion Molecule-1 MH - Altitude MH - *Pulmonary Edema/pathology MH - Vascular Cell Adhesion Molecule-1 MH - Tumor Necrosis Factor-alpha MH - Interleukin-6 MH - *Papillomavirus Infections/complications MH - *Altitude Sickness/metabolism MH - Hypoxia/metabolism MH - Edema/complications MH - Cytokines MH - Inflammation/complications MH - Oxygen PMC - PMC9604159 OTO - NOTNLM OT - high altitude OT - hypoxia OT - inflammation OT - pulmonary edema OT - pulmonary hypertension COIS- The authors declare no conflict of interest. EDAT- 2022/10/28 06:00 MHDA- 2022/10/29 06:00 PMCR- 2022/10/21 CRDT- 2022/10/27 01:24 PHST- 2022/06/28 00:00 [received] PHST- 2022/08/03 00:00 [revised] PHST- 2022/08/06 00:00 [accepted] PHST- 2022/10/27 01:24 [entrez] PHST- 2022/10/28 06:00 [pubmed] PHST- 2022/10/29 06:00 [medline] PHST- 2022/10/21 00:00 [pmc-release] AID - ijms232012656 [pii] AID - ijms-23-12656 [pii] AID - 10.3390/ijms232012656 [doi] PST - epublish SO - Int J Mol Sci. 2022 Oct 21;23(20):12656. doi: 10.3390/ijms232012656.