Microencapsulation of lectin anti-cancer agent and controlled release by alginate beads, biosafety approach

Int J Biol Macromol. 2014 Aug:69:88-94. doi: 10.1016/j.ijbiomac.2014.05.031. Epub 2014 May 20.

Abstract

Hepatocellular carcinoma (HCC) is considered as one of the most aggressive cancer worldwide. In Egypt, the prevalence of HCC is increasing during last years. Recently, drug-loaded microparticles were used to improve the efficiency of various medical treatments. This study is designed to evaluate the anticancer potentialities of lectins against HCC while hinting to its safety usage. The aim is also extended to encapsulate lectins in alginate microbeads for oral drug delivery purposes. The extracted lectins showed anti-proliferative effect against HCC with a percentage of 60.76% by using its nontoxic dose with an up-regulation of P53 gene expression. Concerning the handling of lectin alginate microbeads for oral drug delivery, the prepared lectin alginate beads were ∼100μm in diameter. The efficiency of the microcapsules was checked by scanning electron microscopy, the SEM showed the change on the alginate beads surface revealing the successful lectin encapsulation. The release of lectins from the microbeads depended on a variety of factors as the microbeads forming carriers and the amount-encapsulated lectins. The Pisum sativum extracted lectins may be considered as a promising agent in controlling HCC and this solid dosage form could be suitable for oral administration complemented with/or without the standard HCC drugs.

Keywords: Alginate beads; Encapsulation; Lectin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alginates / adverse effects*
  • Alginates / chemistry*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Capsules
  • Cell Proliferation / drug effects
  • Delayed-Action Preparations
  • Drug Carriers / adverse effects*
  • Drug Carriers / chemistry*
  • Glucuronic Acid / adverse effects
  • Glucuronic Acid / chemistry
  • Hep G2 Cells
  • Hexuronic Acids / adverse effects
  • Hexuronic Acids / chemistry
  • Humans
  • Lectins / chemistry*
  • Lectins / pharmacology
  • Leukocytes, Mononuclear / cytology
  • Leukocytes, Mononuclear / drug effects
  • Microspheres*
  • Safety*

Substances

  • Alginates
  • Antineoplastic Agents
  • Capsules
  • Delayed-Action Preparations
  • Drug Carriers
  • Hexuronic Acids
  • Lectins
  • Glucuronic Acid