Microneedle therapy tsis tsuas yog ci ntsa iab hauv kev siv tshuaj kho mob, tab sis kuj tseem ua lub luag haujlwm tseem ceeb hauv kev txhim kho tshuaj thiab kev tshawb fawb yooj yim. Nws muab cov kws tshawb fawb nrog cov cuab yeej uas tsis tau pom dua los kawm txog kev ua haujlwm ntawm daim tawv nqaij barrier, cov txheej txheem ntawm cov tshuaj transdermal nkag mus, thiab kev nkag mus tau tsawg kawg nkaus ntawm cov qauv tshuaj lom neeg.

Thaum lub sijhawm txhim kho tshuaj, cov haujlwm tseem ceeb ntawm microneedles tau tshwm sim nyob rau hauv vitro kev ntsuam xyuas qauv rau kev xa tshuaj transdermal. Cov tshuaj Franz diffusion chamber yuav tsum tau siv cov tawv nqaij sib cais, thov cov tshuaj rau saum npoo ntawm daim tawv nqaij, thiab tom qab ntawd ntsuas cov tshuaj concentration hauv chav txais khoom. Txoj kev no yog lub sijhawm-siv, muaj qhov tsis zoo rov ua dua, thiab tsis tuaj yeem sim ua qhov tseeb txhua yam ntawm daim tawv nqaij. Lub microneedle array tuaj yeem ua tus qauv "tawv nqaij perforation cuab yeej," tsim kom muaj kev sib luag thiab zoo ib yam microchannels ntawm cov tawv nqaij sib cais, yog li tsim kom muaj siab -throughput transdermal screening platform. Cov tuam txhab lag luam tuaj yeem siv lub platform no txhawm rau ntsuas qhov hloov pauv sai ntawm cov qauv sib txawv thiab cov sib xyaw ua ke ntawm qhov sib txawv molecular hnyav nyob rau hauv kev pab ntawm microneedles, yog li tshuaj xyuas cov tshuaj zoo tshaj plaws.

Hauv kev tshawb fawb yooj yim, lub luag haujlwm ntawm microneedles yog nyob rau hauv qhov tseeb manipulation ntawm daim tawv nqaij microenvironment. Cov kws tshawb fawb tuaj yeem siv microneedles ntawm qhov sib txawv ntawm qhov ntev thiab qhov ntom ntom los kawm txog kev faib tawm ntawm lub cev tiv thaiv kab mob, qhov ntom ntom ntawm cov paj hlwb, thiab cov vascular network ntawm ntau txheej ntawm daim tawv nqaij. Piv txwv li, los ntawm kev txhaj tshuaj fluorescently sau npe rau hauv qhov tob tshwj xeeb siv microneedles thiab tom qab ntawd soj ntsuam lawv txoj hauv kev sib txawv hauv daim tawv nqaij uas siv ob -photon microscope, qhov dynamics ntawm lymphatic kua thiab tshuaj tshem tawm hauv daim tawv nqaij tuaj yeem tshwm sim. Cov ntaub ntawv no yog ib qho tseem ceeb rau kev nkag siab txog cov kab mob ntawm cov kab mob ntawm daim tawv nqaij thiab optimizing cov tswv yim xa tshuaj.

Lub luag haujlwm ntawm microneedles hauv kev sau cov qauv lom neeg tau ua kom yooj yim rau kev tshawb fawb tshawb fawb. Kev kho mob ntawm daim tawv nqaij ib txwm xav tau kev phais tshem tawm cov ntaub so ntswg, uas ua rau muaj kev puas tsuaj loj thiab caws pliav. Microneedle arrays tuaj yeem sau ntau pua ntawm cov ntaub so ntswg me me ib zaug, txhua qhov muaj txoj kab uas hla ntawm ob peb puas micrometers thiab nrog qhov tob tswj tau. Cov kab mob micro-cov qauv no tuaj yeem ua rau muaj cov kab mob histological staining, kev tshuaj ntsuam gene qhia, thiab kev tshawb fawb proteomics, thiab cov qhov txhab me me ntawm qhov chaw pub dawb tuaj yeem kho tsis pub dhau ob peb hnub. Qhov no "tseem ceeb heev biopsy" thev naus laus zis ua rau nws muaj peev xwm mus taug qab qhov kev hloov pauv ntawm daim tawv nqaij, piv txwv li, hauv kev tshawb fawb ntawm psoriasis lossis mob qog noj ntshav ntawm daim tawv nqaij, qhov twg rov ua piv txwv tuaj yeem ua yam tsis cuam tshuam rau tus neeg mob lub neej zoo.

Tsis tas li ntawd, microneedles kuj ua rau pom kev ua haujlwm tshwj xeeb hauv kev kho ntawm tes thiab noob caj noob ces. Los ntawm kev thauj khoom mRNA encoding kho cov proteins lossis CRISPR-Cas9 noob kho cov tshuab rau hauv cov microneedles soluble, lawv tuaj yeem xa ncaj qha mus rau cov hlwb ntawm daim tawv nqaij. Qhov no tsis yog - tus kab mob kis tus kab mob no zam lub immunogenicity thiab kev koom ua ke txaus ntshai tshwm sim los ntawm cov kab mob kab mob ib txwm muaj. Hauv cov qauv nas, cov tshuaj tiv thaiv mRNA xa los ntawm microneedles tau ua tiav qhov muaj zog tiv thaiv- qog tiv thaiv kab mob. Microneedle txoj kev kho yog hloov zuj zus los ntawm cov cuab yeej xa khoom yooj yim mus rau ntau lub platform uas txuas cov kev tshawb fawb yooj yim nrog kev kho mob txhais lus, tsav lub innovation pace ntawm tag nrho cov biopharmaceutical kev lag luam.