中島裕司 (なかじまゆうじ)
 Yuji Nakajima

 Yuji@med.osaka-cu.ac.jp

【研究の紹介】心臓は1本の原始心筒から四腔を持った心臓が形成されます。最近の分子発生生物学の進歩によってこの発生過程のメカニズムの一端が解き明かされていますが、形態発生過程から分子機構まで分からないことがまだたくさんあります。私たちの研究グループではニワトリ胚を使って心臓の形態形成過程の謎を解き、心筋再生治療や先天性心疾患の治療応用も見据えて研究を進めています。ニワトリ胚と聞いて「なぜ」と思う方がいると思いますが、鳥類の胚は便利な材料で、胚への微小手術や局所への遺伝子導入も容易に行うことができます。また最近ゲノム解読も終了しました。ご存知のように心筋細胞は美しい横紋を持った細胞ですが、この規則正しい横紋がどうしてできるのかもよく分かっていません。形の持つ不思議に興味のある方は遊びに来て下さい。

【現在の研究テーマ】1)弁や中隔原基である心内膜床形成の分子機構、2)予定心臓中胚葉と初期心筋分化機構、3)冠状動脈の発生機構、3)心筋組織幹細胞の発生動態とモデル培養系の確立

【参考図書】中島裕司、循環器系形成、わかる実験医学シリーズ 発生生物学がわかる(上野直人、野地澄晴 編集)羊土社p94-99, 2004

心筋組織幹細胞の発生動態とモデル培養系の確立。
心臓発生とその分子機構、中島裕司、循環器形成、発生生物学がわかる(羊土社)より


発表論文
1. Matsui H, Sakabe M, Sakata H, Yanagawa N, Ikeda K, Yamagishi T, Nakajima Y. Induction of initial heartα-actin, smooth muscleα-actin, in chick pregastrula epiblast: The role of hypoblast and fibroblast growth factor-8. Develop Growth Differ 50 (3): 143-157, 2008

1. Sakata H, Sakabe M, Matsui H, Kawada N, Nakatani K, Ikeda K, Yamagishi T, Nakajima Y. Rho kinase inhibitor Y27632 affects initial heart myofibrillogenesis in cultured chick blastoderm. Dev Dynam 236(2): 461-472, 2007

2. Sakabe M, Ikeda K, Nakatani K, Kawada N, Imanaka-Yoshida K, Yoshida T, Yamagishi T, Nakajima Y. Rho kinases regulate endothelial invasion and migration during valvuloseptal endothelial cushion tissue formation. Dev Dynam 235 (1): 94-104, 2006

3. Sakabe M, Matsui H, Sakata H, Ando K, Yamagishi T, Nakajima Y. Understanding heart development and congenital heart defects through developmental biology: A segmental approach. Congenit Anom 45(4):107-18, 2005

4. Matsui H, Ikeda K, Nakatani K, Sakabe M, Yamagishi T, Nakanishi T, Nakajima Y. Induction of initial cardiomyocyte a-actin - smooth muscle a-actin - in cultured avian pregastrula epiblast: a role for nodal and BMP antagonist. Dev Dyn 233 (4): 1419-1429, 2005

5. Yamagishi T, Nakajima Y, Ando K, Nakamura H. Msx1 expression during chick heart development: possible role. in Cardiovascular Development and Congenital Malformation ミ Molecular and Genetic Mechanisms. Artman M. Benson DW, Srivastava D, Nakazawa M (eds), Blackwell Futura (Massachusetts), pp69-71, 2005.

6. Ando K, Nakajima Y, Yamagishi T, Yamamoto S, Nakamura H. Development of proximal coronary artery. in Cardiovascular Development and Congenital Malformation ミ Molecular and Genetic Mechanisms. Artman M. Benson DW, Srivastava D, Nakazawa M (eds), Blackwell Futura (Massachusetts), pp109-111, 2005.

7. Yamagishi T, Nakajima Y, Nishimatsu S, Nohno T, Ando K, Nakamura H. Expression of tbx20 RNA during chick heart development. Dev Dyn 230, 576-580, 2004.

8. Ando K, Nakajima Y, Yamagishi T, Yamamoto S, Nakamura H. Development of Proximal Coronary Arteries in Quail Embryonic Heart: Multiple Capillaries Penetrating the Aortic Sinus Fuse to Form Main Coronary Trunk . Circ Res 94: 346 ミ 352, 2004

9. Y Nakajima, T Yamagishi, K Ando, H Nakamura. Significance of Bone Morphogenetic Protein-4 Function in the Initial Myofibrillogenesis of Chick Cardiogenesis Dev Biol 245:291-303, 2002

10. Yamagishi T, Nakajima Y, Nishimatsu S, Nohno T, Ando K, Nakamura H. Expression of bone morphogenetic protein-5 gene during chick heart development: possible roles in valvuloseptal endocardial cushion formation. Ant Rec 264:313-316, 2001

11. Nakajima Y, Yoshimura K, Nomura M, Nakamura H. Expression of HNK1 epitope by the cardiomyocytes of the early embryonic chick:: in situ and in vitro study. Anat Rec 263:326-333, 2001

12. Nakajima Y, Yamagishi T, Hokari S, Nakamura H. Mechanisms involved in valuvuloseptal endocardial cushion formation in early cardiogenesis: roles of transforming growth factor (TGF)-__and bone morphogenetic protein. Anat Rec 258: 119-127, 2000

13. Nakajima Y, Yamagishi T, Yoshimura K, Nomura M, Nakamura H. Antisense oligodeoxynucleotide complementary to smooth muscle a-actin inhibits endothelial-mesenchymal transformation during chick cardiogenesis. Dev. Dyn. 216:489-498, 1999

14. Yamagishi T, Nakajima Y, Miyazono K, Nakamura H. Bone morphogenetic protein 2 acts synergistically with transforming growth factor b3 in endothelial-mesenchymal transformation during chick heart development. J Cell Physiol. 180: 35-45, 1999  

15. Yamagishi T, Nakajima Y, Nakamura H. Expression of TGFβ3 RNA during chick embryogenesis: a possible important role in cardiovascular development. Cell Tissue Res, 298: 85-93, 1999

16. Nakano M, Nakajima Y, Kudo S, Tsuchida Y, Nakamura H, Fukuda O. Successful autotransplantation of microvessel fragments into the rat heart. Eur Surg Res 31: 240-248, 1999

17. Nakajima Y, Miyazono K, Nakamura H. Immunolocalization of latent transforming growth factor-βbinding protein-1 (LTBP1) during mouse development: possible roles in epithelial and mesenchymal cytodifferentiation. Cell Tissue Res 295: 257-267, 1999  

18. Nakajima Y, Yamagishi Y, Nakamura H, Markwald RR, Krug EL. An autocrine function for transforming growth factor (TGF)-β3 in the transformation of atrioventricular canal endothelium into mesenchyme during chick heart development. Dev. Biol. 194: 99-113, 1998

19. Nakano M, Nakajima Y, Kudo S, Tsuchida Y, Nakamura H, Fukuda O Effect of autotransplantation of microvessel fragments on experimental randam-pattern flaps in the rat. Eur. Surg. Res. 30: 149-160 1998