Ukulethwa Kwezidakamizwa Kwasendaweni Zomdlavuza

Ukulethwa kwezidakamizwa endaweni yomdlavuza kuyindlela eqondiwe egxilisa imithi ngqo endaweni yesimila, ikhulise ukusebenza kwayo kuyilapho inciphisa imiphumela engemihle yesistimu. Le ndlela ithuthukisa imiphumela yokwelapha ngokuthuthukisa i-bioavailability yezidakamizwa ngaphakathi kwesimila kanye nokunciphisa ukuchayeka ezicutshini ezinempilo, inikeza indlela ethembisayo yokwelapha umdlavuza.Ukuqonda Ukulethwa Kwezidakamizwa Kwasendaweni Ukwelashwa komdlavuza wendabuko njengokwelashwa ngamakhemikhali kuvame ukuhilela ukuphathwa kwezidakamizwa okuhleliwe, lapho umuthi uzungeza kuwo wonke umzimba. Nakuba iphumelela ekubulaleni amangqamuzana omdlavuza, le ndlela ingase futhi ilimaze izicubu ezinempilo, okuholela emiphumeleni engathandeki ephawulekayo. Ukulethwa kwezidakamizwa endaweni yomdlavuza ihlose ukunqoba lo mkhawulo ngokuletha abenzeli bezokwelapha ngokuqondile ku-tumor microenvironment.Izinzuzo Zokulethwa Kwezidakamizwa Kwasendaweni Ukusebenza Okuthuthukisiwe: Ukugxila okuphezulu kwezidakamizwa endaweni yesimila kuholela ekubulaweni kwamangqamuzana omdlavuza. Ubuthi Obuncishisiwe: Ukunciphisa ukuchayeka okuhleliwe kunciphisa imiphumela engemihle futhi kuthuthukisa ikhwalithi yempilo yesiguli. Isenzo Esihlosiwe: Ivumela ukulethwa kwezidakamizwa okungenzeka zibe nobuthi kakhulu ekuphathweni kwesistimu. I-Bioavailability Ethuthukisiwe: Inqoba izithiyo ekulethweni kwezidakamizwa ngaphakathi kwe-tumor microenvironment.Izindlela Zokulethwa Kwezidakamizwa KwasendaweniKusetshenziswa amasu amaningana ukuze kuzuzwe. ukulethwa kwezidakamizwa endaweni yomdlavuza. Lezi zindlela zingahlukaniswa kabanzi ngokuthi:Umjovo oqondile oqondile ubandakanya ukulawulwa ngokomzimba kwezidakamizwa kuthumba noma izicubu ezizungezile. Le ndlela ilula futhi ayibizi kakhulu, iyenza ilungele izinhlobo ezithile zomdlavuza, ikakhulukazi lezo ezitholakala kalula. Ukuze uthole intuthuko yakamuva nokunakekelwa kozwelo ekwelapheni umdlavuza, vakashela I-Shandong Baofa Cancer Research Institute.Amadivayisi AfakelwayoIzisetshenziswa ezifakelwayo, njengama-wafers, ama-microchips, nama-hydrogel, zingafakwa ngokuhlinzwa ngaphakathi noma eduze kwesimila. Lezi zisetshenziswa zikhipha izidakamizwa ngesikhathi esiqhubekayo, zihlinzeka ngokwelashwa okuqhubekayo futhi kwendawo.Ama-Catheter-Based DeliveryCatheters angasetshenziswa ukuletha izidakamizwa ngokuqondile endaweni yesimila ngemithambo yegazi noma ezinye izindlela. Le ndlela iwusizo kakhulu ekwelapheni umdlavuza ezithweni ezifana nesibindi noma ubuchopho.I-Nanoparticle-Based DeliveryNanoparticles yizinhlayiyana ezincane (1-100 nm) ezingalayishwa izidakamizwa futhi ziqondiswe kumaseli omdlavuza. Lezi zinhlayiya zingaklanywa ukuthi ziqongelele ngokukhetha kumathumba ngenxa yezakhiwo zawo ezihlukile kanye ne-vasculature evuzayo yezicubu zomdlavuza. Bangakwazi ukuthuthukisa okwengeziwe ukulethwa kwezidakamizwa endaweni yomdlavuza ukwelashwa. Funda kabanzi mayelana nama-nanoparticles.Izinhlobo Zomdlavuza Ezelashwa Ngokulethwa Kwezidakamizwa ZendawoUkulethwa kwezidakamizwa endaweni yomdlavuza icutshungulwa izinhlobo eziningi zomdlavuza, okuhlanganisa:Umdlavuza WobuchophoIzinkwa eziyisicwecwana ezifakelwayo ezinemithi yokwelapha ngamakhemikhali zibonise isithembiso ekwelapheni i-glioblastoma, uhlobo lwesimila sobuchopho. Isibonelo, ama-wafers e-Gliadel, aqukethe i-carmustine, afakwa ngokuqondile emgodini wobuchopho ngemva kokukhishwa kwesimila.I-Cancer YesibindiI-Transarterial chemoembolization (TACE) iyindlela ehambisa izidakamizwa ze-chemotherapy ngqo esimila sesibindi ngomthambo we-hepatic. Le ndlela ijwayele ukusetshenziselwa ukwelapha i-hepatocellular carcinoma (HCC) .Umdlavuza Wendlala YesinyeI-Brachytherapy ihilela ukufakwa kwembewu ekhipha imisebe endlaleni yendlala ukuze ilethe ukwelashwa kwemisebe yendawo. Le ndlela iyasebenza ekwelapheni umdlavuza wendlala yesinye wesigaba sokuqala.Umdlavuza WesifubaAbacwaningi benza izinhlelo zokuletha ezisekelwe ku-nanoparticle ukuze ziqondise amangqamuzana omdlavuza webele futhi zilethe imithi yokwelapha ngamakhemikhali ngokuqondile endaweni yesimila, kuncishiswe ubuthi obuhleliwe.Izibonelo Nezifundo Eziningi Izivivinyo zomtholampilo eziningi kanye nezifundo eziyizimo ziye zabonisa amandla ukulethwa kwezidakamizwa endaweni yomdlavuza. Nazi izibonelo ezimbalwa eziphawulekayo:Ama-Gliadel Wafers e-Glioblastoma Ukuhlolwa kwezokwelapha kubonise ukuthi ama-wafers e-Gliadel angathuthukisa kakhulu amazinga okusinda ezigulini ezine-glioblastoma esanda kutholwa noma ephindelelayo. Ucwaningo olushicilelwe ku-*Journal of Clinical Oncology* lubonise inzuzo yokusinda emaphakathi yezinyanga ezimbalwa uma kuqhathaniswa ne-placebo.I-TACE ye-Hepatocellular CarcinomaTACE iboniswe ukuthuthukisa amazinga okusinda kanye nekhwalithi yokuphila ezigulini ezine-HCC engalungiseki. Ukuhlaziywa kwe-meta kocwaningo oluningi kwathola ukuthi i-TACE yehlisa kakhulu ingozi yokufa uma iqhathaniswa nokunakekelwa okusekelayo kuphela. I ukulethwa kwezidakamizwa endaweni yomdlavuza ibonisa ukuthuthukiswa okukhulu.I-Nanoparticles Ezivivinyweni ZomtholampiloIzilingo zomtholampilo eziningana zihlola ukusetshenziswa kwezinhlelo zokulethwa kwezidakamizwa ezisekelwe ku-nanoparticle zezinhlobo ezihlukahlukene zomdlavuza. Isibonelo, ukuhlolwa komtholampilo kuphenya ukusetshenziswa kwe-liposomal doxorubicin (Doxil) ekwelapheni umdlavuza wesibeletho.Iziqondiso Zesikhathi esizayo kanye NocwaningoUmkhakha we ukulethwa kwezidakamizwa endaweni yomdlavuza ikhula ngokushesha. Ucwaningo oluqhubekayo lugxile ekuthuthukiseni izindlela ezintsha nezithuthukisiwe zokuletha, okuhlanganisa:Izinhlelo Zokulethwa Kwezidakamizwa Ezihlakaniphile Izinhlelo ezihlakaniphile zokulethwa kwezidakamizwa zenzelwe ukukhulula izidakamizwa ngokusabela ku-stimuli ethile, njenge-pH, izinga lokushisa, noma umsebenzi we-enzyme. Lezi zinhlelo zinganikeza ukulethwa kwezidakamizwa okuqondiswe nakakhulu futhi okulawulwayo.Inhlanganisela ye-ImmunotherapyUkuhlanganisa ukulethwa kwezidakamizwa endaweni nge-immunotherapy kuyindawo yocwaningo ethokozisayo. Ngokuletha ama-immune-stimulating agents ngqo ku-tumor microenvironment, abacwaningi banethemba lokuthuthukisa ukusebenza kahle kwe-immunotherapy.Personalized MedicineUkuhlanganisa amasu okulethwa kwezidakamizwa ezicini zesimila sesiguli kungenye indlela ebalulekile. Le ndlela yomuntu siqu ingase iholele ekwelashweni komdlavuza okusebenzayo futhi okunobuthi obuncane. I-Shandong Baofa Cancer Research Institute igcizelela izinhlelo zokwelashwa eziqondene nomuntu ngokusekelwe ocwaningweni olusezingeni eliphezulu. Funda kabanzi mayelana nokuzibophezela kwethu ocwaningweni lomdlavuza.Ukuqhathanisa Izindlela Zasendaweni Zokulethwa Kwezidakamizwa Izindlela Ezinhle Okubi Izibonelo Ukujova Okuqondile Okulula, Okungabizi Kukhawulelwe kumathumba afinyelelekayo, isikhathi esifushane Ukujova ngamakhemikhali esilonda sesikhumba Amadivayisi Angakwazi Ukutshala Ukukhululwa okuqhubekayo, isenzo sendawo Idinga ukuhlinzwa, ingozi yokutheleleka nge-Gliadel-Bafers de Gliaseblastoma okuqondiwe, kungafinyelela ezicutshini ezijulile Kuyahlasela, ingozi yezinkinga i-TACE yomdlavuza wesibindi I-Nanoparticle-Based Delivery Ukulethwa Okuqondiwe, ukuthuthukiswa kwe-bioavailability Complex, ubuthi obungaba khona i-Liposomal doxorubicin (Doxil) yomdlavuza wesibeletho IsiphethoUkulethwa kwezidakamizwa endaweni yomdlavuza inikeza indlela ethembisayo yokuthuthukisa imiphumela yokwelashwa komdlavuza. Ngokugxilisa izidakamizwa endaweni yesimila kanye nokunciphisa ukuchayeka okuhleliwe, le ndlela inamandla okuthuthukisa ukusebenza kahle, ukunciphisa ubuthi, kanye nokwenza ngcono izinga lempilo yesiguli. Njengoba ucwaningo luqhubeka nokuthuthuka, singalindela ukubona amasu amasha nasebenza ngempumelelo okulethwa kwezidakamizwa endaweni, ekugcineni aholele emiphumeleni engcono yeziguli ezinomdlavuza.Umshwana wokuzihlangula: Lesi sihloko senzelwe izinjongo zokwaziswa kuphela futhi akufanele sithathwe njengeseluleko sezokwelapha. Xhumana nochwepheshe bezempilo abaqeqeshiwe nganoma yikuphi ukukhathazeka kwezempilo noma ngaphambi kokwenza noma yiziphi izinqumo ezihlobene nohlelo lwakho lokwelashwa.Izithenjwa:I-National Cancer InstituteUcwaningo lweCancer UK*Iphephabhuku le-Clinical Oncology*