The systemic administration of soluble recombinant forms of human PSGL-1 such as rPSGL-Ig or TSGL-Ig can prevent reperfusion injury caused by leukocyte influx after an ischemic insult to various types of vascularized tissues (IRI). The protective effects of soluble recombinant forms of PSGL-1, acting as pan-selectin antagonists, has been studied in multiple animal models of solid organ transplant and ARDS.
PSGL-1 has been shown to bind to VISTA (V-domain Ig suppressor of T cell activation) but this binding only occurs under acidic pH conditions (pH < 6.5) such as can be found in tumor microenvironments (TME).
Veerman KM, Carlow DA, Shanina I, Priatel JJ, Horwitz MS, Ziltener HJ (February 2012). "PSGL-1 regulates the migration and proliferation of CD8(+) T cells under homeostatic conditions". Journal of Immunology. 188 (4): 1638–1646. doi:10.4049/jimmunol.1103026. PMID 22250093. /wiki/Doi_(identifier)
Sako D, Chang XJ, Barone KM, Vachino G, White HM, Shaw G, et al. (December 1993). "Expression cloning of a functional glycoprotein ligand for P-selectin". Cell. 75 (6): 1179–1186. doi:10.1016/0092-8674(93)90327-m. PMID 7505206. /wiki/Doi_(identifier)
Sako D, Comess KM, Barone KM, Camphausen RT, Cumming DA, Shaw GD (October 1995). "A sulfated peptide segment at the amino terminus of PSGL-1 is critical for P-selectin binding". Cell. 83 (2): 323–331. doi:10.1016/0092-8674(95)90173-6. PMID 7585949. /wiki/Doi_(identifier)
Somers WS, Tang J, Shaw GD, Camphausen RT (October 2000). "Insights into the molecular basis of leukocyte tethering and rolling revealed by structures of P- and E-selectin bound to SLe(X) and PSGL-1". Cell. 103 (3): 467–479. doi:10.1016/s0092-8674(00)00138-0. PMID 11081633. /wiki/Doi_(identifier)
Veldman GM, Bean KM, Cumming DA, Eddy RL, Sait SN, Shows TB (July 1995). "Genomic organization and chromosomal localization of the gene encoding human P-selectin glycoprotein ligand". The Journal of Biological Chemistry. 270 (27): 16470–16475. doi:10.1074/jbc.270.27.16470. PMID 7541799. https://doi.org/10.1074%2Fjbc.270.27.16470
"Entrez Gene: SELPLG selectin P ligand". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=6404
Li F, Wilkins PP, Crawley S, Weinstein J, Cummings RD, McEver RP (February 1996). "Post-translational modifications of recombinant P-selectin glycoprotein ligand-1 required for binding to P- and E-selectin". The Journal of Biological Chemistry. 271 (6): 3255–3264. doi:10.1074/jbc.271.6.3255. PMID 8621728. https://doi.org/10.1074%2Fjbc.271.6.3255
Wilkins PP, Moore KL, McEver RP, Cummings RD (September 1995). "Tyrosine sulfation of P-selectin glycoprotein ligand-1 is required for high affinity binding to P-selectin". The Journal of Biological Chemistry. 270 (39): 22677–22680. doi:10.1074/jbc.270.39.22677. PMID 7559387. https://doi.org/10.1074%2Fjbc.270.39.22677
Sako D, Comess KM, Barone KM, Camphausen RT, Cumming DA, Shaw GD (October 1995). "A sulfated peptide segment at the amino terminus of PSGL-1 is critical for P-selectin binding". Cell. 83 (2): 323–331. doi:10.1016/0092-8674(95)90173-6. PMID 7585949. S2CID 65420. https://doi.org/10.1016%2F0092-8674%2895%2990173-6
Pouyani T, Seed B (October 1995). "PSGL-1 recognition of P-selectin is controlled by a tyrosine sulfation consensus at the PSGL-1 amino terminus". Cell. 83 (2): 333–343. doi:10.1016/0092-8674(95)90174-4. PMID 7585950. S2CID 17480260. https://doi.org/10.1016%2F0092-8674%2895%2990174-4
Zarbock A, Müller H, Kuwano Y, Ley K (November 2009). "PSGL-1-dependent myeloid leukocyte activation". Journal of Leukocyte Biology. 86 (5): 1119–1124. doi:10.1189/jlb.0209117. PMID 19703898. /wiki/Doi_(identifier)
Zhang C, Zhang Y, Liu Y, Liu Y, Kageyama S, Shen XD, et al. (June 2017). "A Soluble Form of P Selectin Glycoprotein Ligand 1 Requires Signaling by Nuclear Factor Erythroid 2-Related Factor 2 to Protect Liver Transplant Endothelial Cells Against Ischemia-Reperfusion Injury". American Journal of Transplantation. 17 (6): 1462–1475. doi:10.1111/ajt.14159. PMC 5444987. PMID 27977895. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5444987
Sun X, Sammani S, Hufford M, Sun BL, Kempf CL, Camp SM, et al. (January 2023). "Targeting SELPLG/P-selectin glycoprotein ligand 1 in preclinical ARDS: Genetic and epigenetic regulation of the SELPLG promoter". Pulmonary Circulation. 13 (1): e12206. doi:10.1002/pul2.12206. PMC 9982077. PMID 36873461. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9982077
Tinoco R, Carrette F, Barraza ML, Otero DC, Magaña J, Bosenberg MW, et al. (May 2016). "PSGL-1 Is an Immune Checkpoint Regulator that Promotes T Cell Exhaustion". Immunity. 44 (5): 1190–1203. doi:10.1016/j.immuni.2016.04.015. PMC 4908967. PMID 27192578.; Lay summary in: Kegel M (1 June 2016). "Immune Factor Seen to Control T-Cell Checkpoints Involved in Spread of Cancers and Infections". Immune-onocology News. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4908967
Johnston RJ, Su LJ, Pinckney J, Critton D, Boyer E, Krishnakumar A, et al. (October 2019). "VISTA is an acidic pH-selective ligand for PSGL-1". Nature. 574 (7779): 565–570. Bibcode:2019Natur.574..565J. doi:10.1038/s41586-019-1674-5. PMID 31645726. /wiki/Bibcode_(identifier)
Hope JL, Otero DC, Bae EA, Stairiker CJ, Palete AB, Faso HA, et al. (May 2023). "PSGL-1 attenuates early TCR signaling to suppress CD8+ T cell progenitor differentiation and elicit terminal CD8+ T cell exhaustion". Cell Reports. 42 (5): 112436. doi:10.1016/j.celrep.2023.112436. PMC 10403047. PMID 37115668.; Lay summary in: Sanford Burnham Prebys Medical Discovery Institute (4 May 2023). "Reviving exhausted T cells to tackle immunotherapy-resistant cancers". Medical Press. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10403047
DeRogatis JM, Viramontes KM, Neubert EN, Henriquez ML, Guerrero-Juarez CF, Tinoco R (May 2022). "Targeting the PSGL-1 Immune Checkpoint Promotes Immunity to PD-1-Resistant Melanoma". Cancer Immunology Research. 10 (5): 612–625. doi:10.1158/2326-6066.CIR-21-0690. PMC 9064985. PMID 35303066. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064985
Novobrantseva T, Manfra D, Ritter J, Razlog M, O'Nuallain B, Zafari M, et al. (August 2024). "Preclinical Efficacy of VTX-0811: A Humanized First-in-Class PSGL-1 mAb Targeting TAMs to Suppress Tumor Growth". Cancers. 16 (16): 2778. doi:10.3390/cancers16162778. PMC 11352552. PMID 39199551. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11352552