腎臓の形態生成が神経成長因子受容体の発現に依存している

H Sariola¹, M Saarma, K Sainio

¹Department of Paediatric Pathology, Childrens' Hospital, University of Helsinki, Finland.

Science (New York, N.Y.)

|October 25, 1991

まとめ

神経成長因子受容体 (NGFR) は,胚性腎臓の発達に不可欠である. NGFRを阻害すると,腎臓管の分化が妨げられ,神経系を超えてその役割が強調されます.

科学分野:

発達生物学発達生物学とは
分子生物学は分子生物学である.
ネフロロジーはネフロロジーを用います.

背景:

神経成長因子受容体 (NGFR) は,神経性成長因子に結合することが知られている.
NGFRの発現は,様々な胚性非ニューロン組織で観察されていますが,これらの臓器におけるNGFRの機能は不明です.
NGFRはネズミの胚性腎臓に一時的に存在し,腎臓の微分化に伴い減少する.

研究の目的:

非ニューロン臓器,特に腎臓の胚形成におけるNGFRの役割を調査する.
NGFRが腎臓管の分化に不可欠であるかどうかを判断する.

主な方法:

ネズミの胚性腎臓におけるNGFRの一時的な発現を研究した.
腎臓発達の過程でNGFR発現を抑制するために使用された反感覚オリゴヌクレオチド.
NGFR阻害が腎臓の形態変異と管管の分化に及ぼす影響を観察した.

主要な成果:

NGFRは,ネズミの胚性腎臓で一時的に合成されます.
反感覚オリゴヌクレオチドを使用したNGFR発現の抑制は,腎臓の形態変異を著しく低下させた.
ネフロンからNGFRの消失は,それらの末端の分化と相関しています.

結論:

NGFRは胚性腎臓の発達と管の分化において重要な役割を果たします.
NGFRは,神経系における既知の機能に加えて,腎臓の適切な形態発生に不可欠である.

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