학술논문
Evaluation and Characterization of Milkderived Microvescicle Isolated from Bovine Colostrum
이용수 10
- 영문명
- 발행기관
- 한국축산식품학회
- 저자명
- Brighton E. Maburutse Mi-Ri Park Sangnam Oh Younghoon Kim
- 간행물 정보
- 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제37권 제5호, 654~662쪽, 전체 9쪽
- 주제분류
- 농수해양 > 식품과학
- 파일형태
- 발행일자
- 2017.10.31
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국문 초록
영문 초록
Extracellular microvesicles are membranous nano-sized cellular organelles secreted by a
variety of cells under normal and pathological conditions and heterogeneous in size ranging
from 30 nm to 1 μm. They carry functional microRNAs that can influence immunity and development.
For a particular application of microvesicles, choice of isolation method is particularly
important; however, their isolation methods from colostrum in particular have not been
described clearly. In this work, differential ultracentrifugation as a conventional method, ultracentrifugation
with some modification such as additional precipitations, ultrafiltration, sucrose
gradient separation and ExoQuick™ as a commercial reagent were compared. The goal was
to compare mainly microvesicular total microRNA yield, distribution and purity among the
methods then select the best isolation method for bovine colostrum microvesicles based largely
on microRNA yield with the view of applying the vesicles in work where vesicular micro-
RNA cargo is the target bioactive component. Highest yields for vesicular microRNA were
obtained using conventional methods and among them, subsequent ultracentrifugation with
100,000 g and 135,000 g conventional method 2 was selected as it had the highest RNA to
protein ratio indicating that it pelleted the least protein in relation to RNA an important factor
for in vivo applications to assess microvesicle functionalities without risk of contaminating
non-vesicular biomaterial. Microvesicles isolated using conventional method 2 were successfully
internalized by cells in vitro showing their potential to deliver their cargo into cells in
vitro and in vivo in case of functional studies.
목차
Introduction
Materials and Methods
Results
Discussion
Acknowledgements
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