Innovative Nano-Composite Biomimetic Scaffold for Osteo-Chondral Tissue Regeneration

نویسندگان

  • M. Fiorini
  • A. Nicoletti
  • E. Arcangeli
  • L. Dolcini
  • A. Tampieri
  • D. Pressato
چکیده

Introduction Osteo-chondral articular defects still represent a key concern in modern orthopaedic surgery and several techniques have been so far proposed (1). A novel strategy able to promote cartilage and sub-chondral bone regeneration of full-thickness defects was recently developed, consisting on implantation of a three-layered nano-composite biomimetic scaffold. This peculiar structure mimics the osteocartilaginous tissue compartment (cartilage, tide-mark and sub-chondral bone), thanks to Mg-HA nano-crystals nucleation on type I collagen fibers during their self-assembling (2). The scaffold has been object of an intense chemical-physical characterization, followed by a pilot clinical study, in order to verify its regenerative performances.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Chemical-physical properties and in vitro cell culturing of a novel biphasic bio-mimetic scaffold for osteo-chondral tissue regeneration.

The requirements for a successful regeneration of an osteo-chondral defect could effectively be met by using a bi-layered composite scaffold, able to support proliferation and differentiation of mesenchymal stem cells, while providing a biochemical environment promoting the formations of the two distinct tissues. The novel strategy here presented consists of developing a bio-mimetic scaffolds o...

متن کامل

Hierarchically biomimetic bone scaffold materials: nano-HA/collagen/PLA composite.

A bone scaffold material (nano-HA/ collagen/PLA composite) was developed by biomimetic synthesis. It shows some features of natural bone both in main composition and hierarchical microstructure. Nano-hydroxyapatite and collagen assembled into mineralized fibril. The three-dimensional porous scaffold materials mimic the microstructure of cancellous bone. Cell culture and animal model tests showe...

متن کامل

Platelet autologous growth factors decrease the osteochondral regeneration capability of a collagen-hydroxyapatite scaffold in a sheep model

BACKGROUND Current research aims to develop innovative approaches to improve chondral and osteochondral regeneration. The objective of this study was to investigate the regenerative potential of platelet-rich plasma (PRP) to enhance the repair process of a collagen-hydroxyapatite scaffold in osteochondral defects in a sheep model. METHODS PRP was added to a new, multi-layer gradient, nanocomp...

متن کامل

Biphasic organo-bioceramic fibrous composite as a biomimetic extracellular matrix for bone tissue regeneration.

In bone tissue engineering, the organo-ceramic composite, electrospun polycaprolactone/hydroxyapatite (PCL/HA) scaffold has the potential to support cell proliferation, migration, differentiation, and homeostasis. Here, we report the effect of PCL/HA scaffold in tissue regeneration using human mesenchymal stem cells (hMSCs). We characterized the scaffold by fourier transform infrared spectrosco...

متن کامل

Using Xenogenic (Calf Foetal) Osteochondral Transplantation for Articular Cartilage Defect in Rabbit Model

Background: The destruction of articular cartilage is the major cause of articular problems. The articular cartilage has little repair postertial due to lack of perichondrium and direct blood circulation. It is, therefore important to consider this phenomena in surgical treatments. One of the articular cartilage reconstructive surgeries is using Osteo-Chondral graft. The main purpose of this re...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010