Porous 3D implants of degradable poly-3-hydroxybutyrate used to enhance regeneration of rat cranial defect

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1002/jbm.a.35933

Ключевые слова: 3D implants, poly-3-hydroxybutyrate, MSC differentiation, grafts for osteogenesis, regeneration of defect cranial

Аннотация: The study describes preparation and testing of porous 3D implants of natural degradable polymer of 3-hydroxybutyric acid P(3HB) for regeneration of bone tissue defects. The ability of the P(3HB) implants to favor attachment and facilitate proliferation and directed differentiation of mesenchymal stem cells (MSCs) was studied in the culture of MSCs isolated from bone marrow and adipose tissue. Tissue-engineered hybrid systems (grafts) constructed using P(3HB) and P(3HB) in combination with osteoblasts were used in experiments on laboratory animals (n=48) with bone defect model. The defect model (5 mm in diameter) was created in the rat parietal bone, and filling of the defect by the new bone tissue was monitored in the groups of animals with P(3HB) implants, with commercial material, and without implants (negative control). Computed tomography (CT) and histologic examination showed that after 120 days, in the group with the osteoblast-seeded P(3HB) implants, the defect was completely closed; in the group with the cell-free P(3HB) implants, the remaining defect was no more than 10% of the initial one (0.5 mm); in both the negative and positive controls, the size of the defect was about 1.0-1.2 mm. These results suggest that P(3HB) has good potential as osteoplastic material for reconstructive osteogenesis. (c) 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 566-577, 2017.

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Издание

Журнал: JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A

Выпуск журнала: Vol. 105, Is. 2

Номера страниц: 566-577

ISSN журнала: 15493296

Место издания: HOBOKEN

Издатель: WILEY-BLACKWELL

Авторы

  • Shumilova A.A. (Siberian Fed Univ, 79 Svobodnyi Ave, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia)
  • Myltygashev M.P. (VF Voino Yasenetsky Krasnoyarsk State Med Univ, 1 Partizan Zheleznyak St, Krasnoyarsk 660022, Russia)
  • Kirichenko A.K. (VF Voino Yasenetsky Krasnoyarsk State Med Univ, 1 Partizan Zheleznyak St, Krasnoyarsk 660022, Russia)
  • Nikolaeva E.D. (Siberian Fed Univ, 79 Svobodnyi Ave, Krasnoyarsk 660041, Russia)
  • Volova T.G. (Siberian Fed Univ, 79 Svobodnyi Ave, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia)
  • Shishatskaya E.I. (Siberian Fed Univ, 79 Svobodnyi Ave, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia)

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