메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
Recently, we isolated a subset of glycolipoproteins from Panax ginseng, that we designated gintonin, and demon-strated that it induced [Ca2+]i transients in cells via G-protein-coupled receptor (GPCR) signaling pathway(s). However, active components responsible for Ca2+ mobili-zation and the corresponding receptor(s) were unknown. Active component(s) for [Ca2+]i transients of gintonin were analyzed by liquid chromatography-electrospray ioniza-tion-tandem mass spectrometry and ion-mobility mass spectrometry, respectively. The corresponding receptor(s) were investigated through gene expression assays. We found that gintonin contains LPA C18:2 and other LPAs. Proteomic analysis showed that ginseng major latex-like protein and ribonuclease-like storage proteins are protein components of gintonin. Gintonin induced [Ca2+]i tran-sients in B103 rat neuroblastoma cells transfected with human LPA receptors with high affinity in order of LPA2 > LPA5 > LPA1 > LPA3 > LPA4. The LPA1/LPA3 receptor antagonist Ki16425 blocked gintonin action in cells ex-pressing LPA1 or LPA3. Mutations of binding sites in the LPA3 receptor attenuated gintonin action. Gintonin acted via pertussis toxin (PTX)-sensitive and -insensitive G pro-tein-phospholipase C (PLC)-inositol 1,4,5-trisphosphate (IP3)- Ca2+ pathways. However, gintonin had no effects on other receptors examined. In human umbilical vein endothelial cells (HUVECs) gintonin stimulated cell proliferation and migration. Gintonin stimulated ERK1/2 phosphorylation. PTX blocked gintonin-mediated migration and ERK1/2 phosphorylation. In PC12 cells gintonin induced morpho-logical changes, which were blocked by Rho kinase inhibi-tor Y-27632. Gintonin contains GPCR ligand LPAs in com-plexes with ginseng proteins and could be useful in the development of drugs targeting LPA receptors.

목차

등록된 정보가 없습니다.

참고문헌 (22)

참고문헌 신청

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0