PMID- 33425756 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210112 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 10 DP - 2020 TI - Connexins in Lung Cancer and Brain Metastasis. PG - 599383 LID - 10.3389/fonc.2020.599383 [doi] LID - 599383 AB - Connexins (Cxs) are involved in the brain metastasis of lung cancer cells. Thus, it is necessary to determine whether gap junction-forming Cxs are involved in the communication between lung cancer cells and the host cells, such as endothelial cells, forming the brain-blood-barrier, and cells in the central nervous system. Data from multiple studies support that Cxs function as tumor suppressors during lung cancer occurrence. However, recent evidence suggests that during metastasis to the brain, cancer cells establish communication with the host. This review discusses junctional or non-junctional hemichannel studies in lung cancer development and brain metastasis, highlighting important unanswered questions and controversies. CI - Copyright (c) 2020 Luo, Chen, Yang, Huang, Cardenas and Jiang. FAU - Luo, Kai-Jun AU - Luo KJ AD - School of Life Sciences, Yunnan University, Kunming, China. AD - Key Laboratory of the University in Yunnan Province for International Cooperation in Intercellular Communications and Regulations, Yunnan University, Kunming, China. FAU - Chen, Chang-Xu AU - Chen CX AD - School of Life Sciences, Yunnan University, Kunming, China. AD - Key Laboratory of the University in Yunnan Province for International Cooperation in Intercellular Communications and Regulations, Yunnan University, Kunming, China. FAU - Yang, Jia-Peng AU - Yang JP AD - Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University/Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, China. AD - Joint International Research Laboratory of Regional Tumor in High Altitude Area, Kunming, China. FAU - Huang, Yun-Chao AU - Huang YC AD - Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University/Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, China. AD - Joint International Research Laboratory of Regional Tumor in High Altitude Area, Kunming, China. FAU - Cardenas, Eduardo R AU - Cardenas ER AD - Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, United States. FAU - Jiang, Jean X AU - Jiang JX AD - Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, United States. LA - eng PT - Journal Article PT - Review DEP - 20201223 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC7786366 OTO - NOTNLM OT - astrocytes OT - connexin OT - endothelial cells OT - gap junction OT - hemichannel OT - lung cancer brain metastasis COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/01/12 06:00 MHDA- 2021/01/12 06:01 PMCR- 2020/01/01 CRDT- 2021/01/11 05:41 PHST- 2020/08/27 00:00 [received] PHST- 2020/11/11 00:00 [accepted] PHST- 2021/01/11 05:41 [entrez] PHST- 2021/01/12 06:00 [pubmed] PHST- 2021/01/12 06:01 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2020.599383 [doi] PST - epublish SO - Front Oncol. 2020 Dec 23;10:599383. doi: 10.3389/fonc.2020.599383. eCollection 2020.