Abstract
Background: Immunotherapy has garnered attention in cancer treatment following the success of recent trials in solid tumors adopting PD-L1/PD-1 checkpoint inhibition. PD-1 is a T-cell checkpoint molecule that limits autoimmune and auto-inflammatory reactivity in the normal host by suppressing adaptive immune responses. Although PD-L1 expression in the tumor is generally considered a poor prognostic marker, it has been used to screen patients for cancer therapy since it is associated with a positive response to PD-L1/PD-1 blocking antibodies.
Outline: This review focuses on the complex interconnections between cancer-reactive and selfreactive immune cells, as well as the potential contribution of a wide range of leading immunomodulatory chemical products from plant-based origins as cancer therapeutics or to foreseeably ameliorate autoimmune diseases. The natural compounds derived from plants should be used as a PD-L1/PD-1 checkpoint modulator to combat cancer cells and other chronic diseases.
Conclusion: The significance of herbal plant extracts in the regulation of the PD-L1/PD-1 checkpoint is presented in this review together with the expression of PD-L1 and PD-1 in cancer cells and diseases in human bodies.
Keywords: PD-1, PD-L1, T-cells, cancer cells, immunotherapy, medicinal plants.
[http://dx.doi.org/10.4054/DemRes.2002.7.5]
[http://dx.doi.org/10.1136/bmj.g2272] [PMID: 24736206]
[http://dx.doi.org/10.1186/s12889-017-4772-z] [PMID: 28934939]
[http://dx.doi.org/10.1016/j.jep.2017.08.034] [PMID: 28847754]
[http://dx.doi.org/10.1186/s12943-018-0928-4] [PMID: 30646912]
[http://dx.doi.org/10.18632/oncotarget.25660] [PMID: 30018750]
[http://dx.doi.org/10.1016/j.foodchem.2020.127197] [PMID: 32540521]
[http://dx.doi.org/10.1016/j.carpath.2017.06.009] [PMID: 28759820]
[http://dx.doi.org/10.3390/ijms21020570] [PMID: 31963129]
[http://dx.doi.org/10.1186/s13020-016-0108-7] [PMID: 27478496]
[http://dx.doi.org/10.1089/1076629041310055] [PMID: 15256032]
[http://dx.doi.org/10.3389/fphar.2013.00177] [PMID: 24454289]
[http://dx.doi.org/10.31033/ijrasb.7.5.47]
[http://dx.doi.org/10.5772/66893]
[http://dx.doi.org/10.5897/JMPR2019.6769]
[http://dx.doi.org/10.3389/fpls.2018.01445] [PMID: 30333846]
[http://dx.doi.org/10.1016/j.biotechadv.2008.07.001] [PMID: 18682287]
[http://dx.doi.org/10.1038/s41420-018-0122-x] [PMID: 30479841]
[http://dx.doi.org/10.31024/ajpp.2018.4.6.7]
[http://dx.doi.org/10.18231/2393-9087.2018.0029]
[http://dx.doi.org/10.1002/cbdv.201600291] [PMID: 27935659]
[http://dx.doi.org/10.1002/ptr.6058] [PMID: 29532545]
[http://dx.doi.org/10.1155/2017/1583185]
[http://dx.doi.org/10.4103/2231-4040.197371] [PMID: 28217550]
[PMID: 28234626]
[http://dx.doi.org/10.3390/molecules23102579] [PMID: 30304821]
[http://dx.doi.org/10.1016/j.biopha.2017.08.045] [PMID: 28826092]
[http://dx.doi.org/10.1016/j.jsps.2019.09.007]] [PMID: 31885470]
[http://dx.doi.org/10.1016/j.intimp.2017.05.004] [PMID: 28501767]
[http://dx.doi.org/10.9734/EJMP/2016/28534]
[PMID: 29938468]
[http://dx.doi.org/10.3390/molecules22081391] [PMID: 28829378]
[http://dx.doi.org/10.3892/ol.2017.6422] [PMID: 28781636]
[http://dx.doi.org/10.3389/fphar.2021.777500] [PMID: 35177980]
[http://dx.doi.org/10.3390/metabo2020303] [PMID: 24957513]
[http://dx.doi.org/10.1016/j.bbrc.2015.08.022] [PMID: 26271592]
[http://dx.doi.org/10.1016/j.drudis.2013.10.005] [PMID: 24140592]
[http://dx.doi.org/10.3892/ijo.2016.3769] [PMID: 27878253]
[http://dx.doi.org/10.2174/187152012803833026] [PMID: 22583408]
[http://dx.doi.org/10.15406/ijcam.2017.09.00291]
[http://dx.doi.org/10.1016/j.sajb.2014.06.002]
[http://dx.doi.org/10.1111/j.1478-3231.2012.02864.x] [PMID: 22928722]
[http://dx.doi.org/10.1186/s40816-017-0053-8]
[http://dx.doi.org/10.1177/0956462412473889] [PMID: 23970749]
[http://dx.doi.org/10.1016/j.tiv.2017.01.007] [PMID: 28089783]
[PMID: 4921480]
[PMID: 6758376]
[http://dx.doi.org/10.3389/fimmu.2016.00365] [PMID: 27703456]
[http://dx.doi.org/10.1038/s41577-019-0271-z] [PMID: 32024984]
[http://dx.doi.org/10.1016/j.cell.2016.01.049] [PMID: 26967289]
[http://dx.doi.org/10.1126/science.aao4227]
[http://dx.doi.org/10.1016/j.cell.2011.02.013] [PMID: 21376230]
[http://dx.doi.org/10.1186/s12943-018-0913-y] [PMID: 29304823]
[http://dx.doi.org/10.4049/jimmunol.1201449] [PMID: 23440412]
[http://dx.doi.org/10.3390/cancers6031670] [PMID: 25125485]
[http://dx.doi.org/10.1146/annurev.immunol.26.021607.090331] [PMID: 18173375]
[http://dx.doi.org/10.18632/oncotarget.16545] [PMID: 28380458]
[http://dx.doi.org/10.3390/cancers12030673] [PMID: 32183059]
[http://dx.doi.org/10.3389/fonc.2022.769124] [PMID: 35223466]
[http://dx.doi.org/10.1186/s40425-018-0316-z] [PMID: 29357948]
[http://dx.doi.org/10.1016/S1470-2045(14)70348-1] [PMID: 25328942]
[http://dx.doi.org/10.1056/NEJMra1514296] [PMID: 27806234]
[http://dx.doi.org/10.1038/nrc3239]
[http://dx.doi.org/10.1093/annonc/mdz123] [PMID: 30977778]
[http://dx.doi.org/10.1016/j.ygyno.2018.01.009] [PMID: 29666026]
[http://dx.doi.org/10.1136/bmj.k4226] [PMID: 30409774]
[http://dx.doi.org/10.1080/2162402X.2015.1075114] [PMID: 27057446]
[http://dx.doi.org/10.3322/caac.21596] [PMID: 31944278]
[http://dx.doi.org/10.1002/cncr.30642] [PMID: 28241095]
[http://dx.doi.org/10.3322/caac.21492] [PMID: 30207593]
[http://dx.doi.org/10.1016/j.ygyno.2009.11.020] [PMID: 20006900]
[http://dx.doi.org/10.1371/journal.pone.0069631] [PMID: 23922763]
[http://dx.doi.org/10.3109/08830185.2011.567361] [PMID: 21557637]
[http://dx.doi.org/10.1038/nature12626] [PMID: 24048067]
[http://dx.doi.org/10.1038/modpathol.2008.187] [PMID: 18997734]
[http://dx.doi.org/10.1158/1078-0432.CCR-12-2199] [PMID: 23340297]
[http://dx.doi.org/10.1084/jem.192.7.1027] [PMID: 11015443]
[http://dx.doi.org/10.1038/bjc.2015.101] [PMID: 25867264]
[http://dx.doi.org/10.1007/s10120-017-0716-7] [PMID: 28417260]
[http://dx.doi.org/10.1016/j.acthis.2006.01.003] [PMID: 16530813]
[http://dx.doi.org/10.1016/S1470-2045(16)00175-3] [PMID: 27157491]
[http://dx.doi.org/10.1111/cas.13424] [PMID: 29034543]
[http://dx.doi.org/10.1038/s41408-019-0185-9] [PMID: 30783096]
[http://dx.doi.org/10.1007/s11912-019-0763-9] [PMID: 30715618]
[http://dx.doi.org/10.1095/biolreprod.116.141630] [PMID: 27580989]
[http://dx.doi.org/10.4049/jimmunol.1801199] [PMID: 30979816]
[http://dx.doi.org/10.18632/oncotarget.24951] [PMID: 29721192]
[http://dx.doi.org/10.3322/caac.21660] [PMID: 33538338]
[http://dx.doi.org/10.1158/1055-9965.EPI-18-0098] [PMID: 30068516]
[http://dx.doi.org/10.1002/cam4.106] [PMID: 24403232]
[http://dx.doi.org/10.1158/1078-0432.CCR-12-2731] [PMID: 23095323]
[http://dx.doi.org/10.1038/srep03456] [PMID: 24316750]
[http://dx.doi.org/10.18632/oncotarget.13819] [PMID: 27935862]
[http://dx.doi.org/10.1093/neuonc/nou283] [PMID: 25313193]
[http://dx.doi.org/10.1007/s00401-016-1545-1] [PMID: 27157931]
[http://dx.doi.org/10.1038/labinvest.2017.19] [PMID: 28287634]
[http://dx.doi.org/10.1038/nrc2639] [PMID: 19461669]
[http://dx.doi.org/10.3389/fphar.2017.00561] [PMID: 28878676]
[http://dx.doi.org/10.1126/scitranslmed.3006504] [PMID: 23986400]
[http://dx.doi.org/10.1016/j.celrep.2017.04.031] [PMID: 28494868]
[http://dx.doi.org/10.1186/s12974-018-1330-2] [PMID: 30333036]
[http://dx.doi.org/10.4049/jimmunol.165.4.1847] [PMID: 10925263]
[http://dx.doi.org/10.1002/glia.22701] [PMID: 24890099]
[http://dx.doi.org/10.4254/wjh.v11.i1.1] [PMID: 30705715]
[http://dx.doi.org/10.1093/annonc/mdy308]
[http://dx.doi.org/10.1186/s13046-018-0777-4] [PMID: 29843754]
[http://dx.doi.org/10.1111/bjh.15085] [PMID: 29359792]
[http://dx.doi.org/10.7314/APJCP.2012.13.8.4031] [PMID: 23098512]
[http://dx.doi.org/10.1016/j.immuni.2007.05.016] [PMID: 17629517]
[http://dx.doi.org/10.1186/s11658-018-0122-0] [PMID: 30564277]
[http://dx.doi.org/10.1038/nature13954] [PMID: 25428505]
[http://dx.doi.org/10.1111/cas.13099] [PMID: 27712020]
[http://dx.doi.org/10.1186/s13045-019-0779-5] [PMID: 31488176]
[http://dx.doi.org/10.1186/s13020-018-0192-y] [PMID: 29997684]
[http://dx.doi.org/10.1016/S1470-2045(18)30136-0] [PMID: 29508748]
[http://dx.doi.org/10.1038/s41401-020-0366-x]
[http://dx.doi.org/10.1021/acs.jmedchem.9b00795] [PMID: 31298541]
[http://dx.doi.org/10.2147/OTT.S212666] [PMID: 31849495]
[http://dx.doi.org/10.1038/s41598-019-48826-6]
[http://dx.doi.org/10.3390/foods9111590]
[http://dx.doi.org/10.2147/CMAR.S247554] [PMID: 32606951]
[http://dx.doi.org/10.1021/jf205350k] [PMID: 22563950]
[http://dx.doi.org/10.1080/14786419.2018.1504046] [PMID: 30345814]
[http://dx.doi.org/10.1016/j.jep.2016.09.030] [PMID: 27647011]
[http://dx.doi.org/10.3390/molecules22081279] [PMID: 28763025]
[http://dx.doi.org/10.2174/1871523016666170502121419] [PMID: 28464779]
[http://dx.doi.org/10.3389/fimmu.2020.598556] [PMID: 33224152]
[http://dx.doi.org/10.1016/j.ijbiomac.2013.11.033] [PMID: 24315949]
[http://dx.doi.org/10.1038/ni1178] [PMID: 15785760]
[http://dx.doi.org/10.1155/2017/1871298]
[http://dx.doi.org/10.4049/jimmunol.174.6.3401] [PMID: 15749873]
[http://dx.doi.org/10.1007/s00595-016-1305-9] [PMID: 26801344]
[http://dx.doi.org/10.1111/j.1582-4934.2011.01437.x] [PMID: 21895966]
[http://dx.doi.org/10.3390/cancers11020128] [PMID: 30678249]
[http://dx.doi.org/10.3390/cancers11081054] [PMID: 31349728]
[http://dx.doi.org/10.7150/ijms.42978] [PMID: 32308547]
[http://dx.doi.org/10.1007/s00262-017-1954-6] [PMID: 28213726]