This Article Abstract Free Full Text (Free PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Scopus Google Scholar Articles by Goyal, A. K. Articles by Vyas, S. P. PubMed PubMed Citation Articles by Goyal, A. K. Articles by Vyas, S. P. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB ALUMINUM SULFATE ALUM, POTASSIUM CALCIUM COMPOUNDS HYDROXYAPATITE Social Bookmarking                         What's this?

Development of Self-assembled Nanoceramic Carrier Construct(s) for Vaccine Delivery

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India, Department of Pharmaceutics, ISF College of Pharmacy, Moga (Punjab) 142001, India

Kapil Khatri

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India

Neeraj Mishra

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India

Abhinav Mehta

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India

Bhuvaneshwar Vaidya

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India, Department of Pharmaceutics, ISF College of Pharmacy, Moga (Punjab) 142001, India

Shailja Tiwari

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India

Rishi Paliwal

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India, Department of Pharmaceutics, ISF College of Pharmacy, Moga (Punjab) 142001, India

Shivani Paliwal

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India, Department of Pharmaceutics, ISF College of Pharmacy, Moga (Punjab) 142001, India

Suresh P. Vyas

Department of Pharmaceutical Sciences, Drug Delivery Research Laboratory, Dr Harisingh Gour Vishwavidyalaya, Sagar (MP) 470003, India, vyas_sp{at}rediffmail.com, spvyas{at}bsnl.in, Department of Pharmaceutics, ISF College of Pharmacy, Moga (Punjab) 142001, India

Hydroxyapatite (HA) has been extensively investigated as scaffolds for tissue engineering, as drug delivery agents, as non-viral gene carriers, as prosthetic coatings, and composites. Recent studies in our laboratory demonstrated the immunoadjuvant properties of HA when administered with malarial merozoite surface protein-1₁₉ (MSP-1₁₉). HA nanoceramic carrier was prepared by co-precipitation method that comprises of sintering and spray-drying technique. Prepared systems were characterized for crystallinity, size, shape, and antigen loading efficiency. Small size and large surface area of prepared HA demonstrated good adsorption efficiency of immunogens. Prepared nanoceramic formulations also showed slower in vitro antigen release and slower biodegrability behavior, which may lead to a prolonged exposure to antigen-presenting cells and lymphocytes. Furthermore, addition of mannose in nanoceramic formulation may additionally lead to increased stability and immunological reactions. Immunization with MSP-1₁₉ in nanoceramic-based adjuvant systems induced a vigorous immunoglobulin G (IgG) response, with higher IgG2a than IgG1 titers. In addition considerable amount of IFN-g and IL-2 was observed in spleen cells of mice immunized with nanoceramic-based vaccines. On the contrary, mice immunized with MSP-1₁₉ alone or with alum did not exhibit a significant cytotoxic response. The antibody responses to vaccine co-administered with HA was a mixed Th1/Th2 compared to the Th2-biased response obtained with alum. The prepared HA nanoparticles exhibit physicochemical properties that appear promising to make them a suitable immunoadjuvant to be used as antigen carriers for immunopotentiation.

Key Words: hydroxyapatite • nanoparticles • malaria • vaccines • drug delivery.

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This version was published on July 1, 2009

Journal of Biomaterials Applications, Vol. 24, No. 1, 65-84 (2009)
DOI: 10.1177/0885328209104018


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This Article Abstract Free Full Text (Free PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Scopus Google Scholar Articles by Goyal, A. K. Articles by Vyas, S. P. PubMed PubMed Citation Articles by Goyal, A. K. Articles by Vyas, S. P. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB ALUMINUM SULFATE ALUM, POTASSIUM CALCIUM COMPOUNDS HYDROXYAPATITE Social Bookmarking                         What's this?