Division for Matrixome Research and Application
Institute for Protein Research
Osaka University


Crystal structure of laminin-511 E8 fragment

Our long-term goal is to understand the molecular mechanisms that govern the morphogenetic interactions of cells with surrounding extracellular matrices.

We are particularly interested in the role of basement membranes in embryonic development and tissue homeostasis with an emphasis on the molecular interactions of basement membrane proteins with their receptors on the cell surface and the resulting signaling events that regulate proliferation, differentiation, apoptosis, and motility of cells.

Emphasis is also given to fabrication of a "designer matrix", the 2D and 3D culture substrates customized for individual cell types including pluripotent and tissue stem cells to promote regenerative medicine.

What's New

2024.03.26Award

Yukimasa Taniguchi received "Excellent Presentation Award" at 23rd Annual Meeting of the Japanese Society for Regenerative Medicine.

2024.03.21-22News

Yukimasa Taniguchi and Kohei Minobe presented their results at the 23rd Annual Meeting of the Japanese Society for Regenerative Medicine to be held in Niigata from March 21-23, 2024.

2024.03.16News

Shaoliang Li, an alumnus of our lab, has returned and takes part in our project on fabrication of chemically defined basement membrane-like gels. Welcome Shaoliang!

2024.03.15News

Ko Tsutsui, an alumnus of our laboratory and currently at University of Manchester, presented the results of our collaboration at the 7th International Workshop on Alport Syndrome to be held in Cyprus from March 14-16, 2024.

2023.12.26News

A farewell party was held for Ryoko Sato-Nishiuchi.
> Check here

2023.12.25Press Release

A collaborative work with Masato Nakagawa of CiRA, Kyoto University, has been published in Regenerative Therapy. This paper addresses the dual binding specificity of bFGF towards bFGFR and integrin alpha6beta1 in pluripotency of iPS cells.
> Click here for the publication site of Regenerative Therapy

2023.12.15News

Sekiguchi Laboratory's year-end party was held for the first time in five years.
> Check here

2023.11.25News
Kiyotoshi Sekiguchi gave a Keynote Plenary Lecture at the 7th Annual Symposium of the Consortium for Advancement of Stem Cell Manipulation on November 25, 2023.
2023.11.22News

Kiyotoshi Sekiguchi was awarded a plaque of the certificate of Distinguished Professorship from the President of Osaka University.
> Check here

2023.11.21News
Yukimasa Taniguchi presented our recent progress on the development of the fibrin gel functionalized with the laminin-511 E8 fragment at IPR Retreat 2023.
2023.11.18Press Release

A collaborative work on live imaging of human eccrine sweat glands with Kie Nakashima, Hiroko Kato, Fumitaka Fujita, and other members of Laboratory of Advanced Cosmetic Science, Graduate School of pharmaceutical Sciences, Osaka University, Fumihiro Okada of Mandom Corporation, Hiroyuki Murota (currently Nagasaki University), Yukinobu Nakagawa, Atsushi Tanemura, and Ichiro Katayama of Graduate School of Medicine, Osaka University was published in Communications Biology. This is the first paper that reports the dynamic contractile motions of isolated eccrine sweat glands that propel peristaltic transport of sweat.
The movie here
Click here for the publication site of Communications Biology

2023.10.06News

Group photos of Sekiguchi Lab for the past quarter century are uploaded as a YouTube movie.
> Check here

2023.09.09News

A celebration party for Kiyotoshi Sekiguchi’s Medal with Purple Ribbon was held at Centra Grand Hotel Osaka.
> Click here for details of the celebration party

2023.09.04Press Release

A paper coauthored with Yoriko Sugiyama-Nakagiri of Kao Corporation was published online in Scientific Reports. This paper reports that perlecan-conjugated laminin E8 fragments promote the differentiation of human iPS cells into skin-derived precursor cells that have the ability to differentiate into adipocytes, osteocytes, and Schwann cells.
> Click here for the publication site of pubmed website

2023.09.04Press Release

Ryoko Sato-Nishiuchi’s paper reporting the interaction of Polydom/SVEP1 with Tie1 was published in J Cell Biol.
> Click here for the publication site of Journal of Cell Biology
> Click here for the press release site on the Osaka University website
> Click here for the press release site of the Institute for Protein Research website

2023.04.29Award

Osaka University awarded the title of "Osaka University Distinguished Professor" to Kiyotoshi Sekiguchi.
> Click here for a list of Osaka University Distinguished Professors

2023.04.28Award

Kiyotoshi Sekiguchi was awarded the Medal with Purple Ribbon in the spring of 2023.
> Click here for photos at the award ceremony

2023.04.21Press Release
Sugiko Futaki's paper reporting in vivo imaging of basement membranes using a nidogen-EGFP reporter mouse was published online in Matrix Biology Plus.
2023.03.23News
Kohei Minobe presented his work at the annual meeting of Japanese Society for Regenerative Medicine held in Kyoto.
2023.03.15News
Our website has been renewed.
2022.08.11Press Release
Sugiko Futaki's paper reporting the live imaging of the basement membrane of mouse salivary glands was published in Microscopy.
This work was conducted in collaboration with Yuichi Kadoya of Kitasato University.