Iyini i-oligonucleotide?

Ama-Oligonucleotides ama-nucleic acid polymers anokuhlelwa okuklanywe ngokukhethekile, okuhlanganisa i-antisense oligonucleotides (ASOs), ama-siRNA (ama-RNA amancane aphazamisayo), ama-microRNA, nama-aptamers.I-Oligonucleotides ingasetshenziswa ukulungisa ukubonakaliswa kofuzo ngokusebenzisa uchungechunge lwezinqubo, okuhlanganisa i-RNAi, ukucekelwa phansi okuqondiwe ngokusebenzisa i-RNase H-mediated cleavage, ukulawulwa kwe-splicing, ukucindezelwa kwe-RNA okungakhohlisi, ukusebenzisa izakhi zofuzo, nokuhlelwa kofuzo okuhleliwe.

b01eae25-300x300

Ama-oligonucleotides amaningi (ama-ASO, i-siRNA, ne-microRNA) ayaxutshwa ukuze aqondise isakhi sofuzo se-mRNA noma i-pre-mRNA ngokumatanisa okuyisisekelo okuhambisanayo, futhi ngokombono angashintsha ngokukhetha ukuvezwa kwanoma yiluphi uhlobo lofuzo oluqondiwe namaprotheni, okuhlanganisa “okungewona okwelapha” okuqondiwe.Ama-aptamers anokusondelana okuphezulu kwephrotheni eqondiwe, efana nesakhiwo sezinga eliphezulu samasosha omzimba, hhayi ukulandelana.I-Oligonucleotides iphinde inikeze ezinye izinzuzo, ezihlanganisa izindlela ezilula zokukhiqiza nezindlela zokulungiselela, imijikelezo emifushane yokuthuthukiswa, kanye nemiphumela ehlala njalo.

Uma kuqhathaniswa nama-molecule amancane okuvimbela inhibitor, ukusetshenziswa kwe-oligonucleotides njengezidakamizwa kuyindlela entsha eyisisekelo.Amandla e-oligonucleotide kuzakhi zofuzo ezinembayo akhuphule isasasa lezicelo zokwelapha kumdlavuza, isifo senhliziyo nemithambo yegazi, kanye nezifo ezingavamile.Ukugunyazwa kwakamuva kwe-FDA kwe-Givosiran, Lumasiran kanye ne-Viltolarsen kuletha i-RNAi, noma izindlela zokwelapha ezisekelwe ku-RNA, ekuthuthukisweni kwezidakamizwa.


Isikhathi sokuthumela: Jul-19-2022