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Autologous chondrocytes as a novel source for neo-chondrogenesis in haemophiliacs.

Abstract：

:Haemophilic arthropathy is the major cause of disability in patients with haemophilia and, despite prophylaxis with coagulation factor concentrates, some patients still develop articular complications. We evaluate the feasibility of a tissue engineering approach to improve current clinical strategies for cartilage regeneration in haemophiliacs by using autologous chondrocytes (haemophilic chondrocytes; HaeCs). Little is known about articular chondrocytes from haemophilic patients and no characterisation has as yet been performed. An investigation into whether blood exposure alters HaeCs should be interesting from the perspective of autologous implants. The typical morphology and expression of specific target genes and surface markers were therefore assessed by optical microscopy, reverse transcription plus the polymerase chain reaction (PCR), real-time PCR and flow-cytometry. We then considered chondrocyte behaviour on a bio-hybrid scaffold (based on polyvinyl alcohol/Wharton's jelly) as an in vitro model of articular cartilage prosthesis. Articular chondrocytes from non-haemophilic donors were used as controls. HaeC morphology and the resulting immunophenotype CD44(+)/CD49c(+)/CD49e(+)/CD151(+)/CD73(+)/CD49f(-)/CD26(-) resembled those of healthy donors. Moreover, HaeCs were active in the transcription of genes involved in the synthesis of the extracellular matrix proteins of the articular cartilage (ACAN, COL1A, COL2A, COL10A, COL9A, COMP, HAS1, SOX9), although the over-expression of COL1A1, COL10A1, COMP and HAS was observed. In parallel, the composite scaffold showed adequate mechanical and biological properties for cartilage tissue engineering, promoting chondrocyte proliferation. Our preliminary evidence contributes to the characterisation of HaeCs, highlighting the opportunity of using them for autologous cartilage implants in patients with haemophilia.

journal_name

Cell Tissue Res

journal_title

Cell and tissue research

authors

Stocco E,Barbon S,Radossi P,Rajendran S,Dalzoppo D,Bortolami M,Bagno A,Grandi F,Gamba PG,Parnigotto PP,Tagariello G,Grandi C

doi

10.1007/s00441-016-2408-8

subject

Has Abstract

pub_date

2016-10-01 00:00:00

pages

51-61

issue

eissn

0302-766X

issn

1432-0878

pii

10.1007/s00441-016-2408-8

journal_volume

366

pub_type

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Autologous chondrocytes as a novel source for neo-chondrogenesis in haemophiliacs.