2021
Barriers in Systemic Delivery and Preclinical Testing of Synthetic microRNAs in Animal Models: an Experimental Study on miR-215-5p Mimic
MACHÁČKOVÁ, Táňa, Petra VYCHYTILOVÁ, Kamila SOUČKOVÁ, Richard LAGA, Ladislav ANDROVIC et. al.Základní údaje
Originální název
Barriers in Systemic Delivery and Preclinical Testing of Synthetic microRNAs in Animal Models: an Experimental Study on miR-215-5p Mimic
Autoři
MACHÁČKOVÁ, Táňa (203 Česká republika, domácí), Petra VYCHYTILOVÁ (203 Česká republika, domácí), Kamila SOUČKOVÁ (203 Česká republika, domácí), Richard LAGA (203 Česká republika), Ladislav ANDROVIC (203 Česká republika), Gabriela MIXOVA (203 Česká republika) a Ondřej SLABÝ (203 Česká republika, garant, domácí)
Vydání
Physiological research, Praha, Fyziologický ústav AV ČR, 2021, 0862-8408
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30105 Physiology
Stát vydavatele
Bulharsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.139
Kód RIV
RIV/00216224:14740/21:00119670
Organizační jednotka
Středoevropský technologický institut
UT WoS
000675528500016
Klíčová slova anglicky
miRNA; miR-215-5p; Animal model; Systemic delivery
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 4. 3. 2022 13:56, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Mus musculus is the most commonly used animal model in microRNA research; however, little is known about the endogenous miRNome of the animals used in the miRNA-targeting preclinical studies with the human xenografts. In the presented study, we evaluated the NOD/SCID gamma mouse model for the preclinical study of systemic miR-215-5p substitution with a semitelechelic poly[N-(2-hydroxypropyl)methacrylamide]-based carrier conjugated with miR-215-5pmimic via a reductively degradable disulfide bond. Murine mmu-miR-215-5p and human hsa-miR-215-5p have a high homology of mature sequences with only one nucleotide substitution. Due to the high homology of hsa-miR-215-5p and mmu-hsa-miR-2155p, a similar expression in human and NOD/SCID gamma mice was expected. Expression of mmu-miR-215 in murine organs did not indicate tissue-specific expression and was highly expressed in all examined tissues. All animals included in the study showed a significantly higher concentration of miR-215-5p in the blood plasma compared to human blood plasma, where miR-215-5p is on the verge of a reliable detection limit. However, circulating mmu-miR-215-5p did not enter the human xenograft tumors generated with colorectal cancer cell lines since the levels of miR-215-5p in control tumors remained notably lower compared to those originally transfected with miR-215-5p. Finally, the systemic administration of polymer-miR-215-5p-mimic conjugate to the tail vein did not increase miR-215-5p in NOD/SCID gamma mouse blood plasma, organs, and subcutaneous tumors. It was impossible to distinguish hsa-miR-215-5p and mmu-miR-215-5p in the murine blood and organs due to the high expression of endogenous mmu-miR-215-5p. In conclusion, the examination of endogenous tissue and circulating miRNome of an experimental animal model of choice might be necessary for future miRNA studies focused on the systemic delivery of miRNA-based drugs conducted in the animal models.
Návaznosti
GA16-18257S, projekt VaV |
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