Analysis of toxicity and anticancer activity of micelles of sodium alginate-curcumin
Identifieur interne : 000A90 ( Main/Merge ); précédent : 000A89; suivant : 000A91Analysis of toxicity and anticancer activity of micelles of sodium alginate-curcumin
Auteurs : Alicja Karabasz [Pologne] ; Dorota Lachowicz [Pologne] ; Anna Karewicz [Pologne] ; Renata Mezyk-Kopec [Pologne] ; Krystyna Stali Ska [Pologne] ; Ewa Werner [Pologne] ; Agnieszka Cierniak [Pologne] ; Grzegorz Dyduch [Pologne] ; Joanna Bereta [Pologne] ; Monika Bzowska [Pologne]Source :
- International Journal of Nanomedicine [ 1176-9114 ] ; 2019.
Abstract
Curcumin is a natural polyphenol with anti-inflammatory, chemopreventive and anticancer activity. However, its high hydrophobicity and poor bioavailability limit its medical application. The development of nanocarriers for curcumin delivery is an attractive approach to overcome its low bioavailability and fast metabolism in the liver. We synthesized a blood compatible alginate-curcumin conjugate, AA-Cur, which formed colloidally stable micelles of approximately 200 nm and, as previously shown, exerted strong cytotoxicity against mouse cancer cell lines. Here we analyze in vivo toxicity and antitumor activity of AA-Cur in two different mouse tumor models.
Potential toxicity of intravenously injected AA-Cur was evaluated by: i) analyses of blood parameters (morphology and biochemistry), ii) histology, iii) DNA integrity (comet assay), and iv) cytokine profiling (flow cytometry). Antitumor activity of AA-Cur was evaluated by measuring the growth of subcutaneously inoculated colon MC38-CEA- or orthotopically injected breast 4T1 tumor cells in control mice vs mice treated with AA-Cur.
Injections of four doses of AA-Cur did not reveal any toxicity of the conjugate, thus indicating the safety of its use. AA-Cur elicited moderate anti-tumor activity toward colon MC38-CEA or breast 4T1 carcinomas.
The tested conjugate of alginate and curcumin, AA-Cur, is non-toxic and safe, but exhibits limited anticancer activity.
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DOI: 10.2147/IJN.S213942
PubMed: 31564877
PubMed Central: 6735652
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<front><div type="abstract" xml:lang="en"><sec id="S2001"><title>Background</title>
<p>Curcumin is a natural polyphenol with anti-inflammatory, chemopreventive and anticancer activity. However, its high hydrophobicity and poor bioavailability limit its medical application. The development of nanocarriers for curcumin delivery is an attractive approach to overcome its low bioavailability and fast metabolism in the liver. We synthesized a blood compatible alginate-curcumin conjugate, AA-Cur, which formed colloidally stable micelles of approximately 200 nm and, as previously shown, exerted strong cytotoxicity against mouse cancer cell lines. Here we analyze in vivo toxicity and antitumor activity of AA-Cur in two different mouse tumor models.</p>
</sec>
<sec id="S2002"><title>Method</title>
<p>Potential toxicity of intravenously injected AA-Cur was evaluated by: i) analyses of blood parameters (morphology and biochemistry), ii) histology, iii) DNA integrity (comet assay), and iv) cytokine profiling (flow cytometry). Antitumor activity of AA-Cur was evaluated by measuring the growth of subcutaneously inoculated colon MC38-CEA- or orthotopically injected breast 4T1 tumor cells in control mice vs mice treated with AA-Cur.</p>
</sec>
<sec id="S2003"><title>Results</title>
<p>Injections of four doses of AA-Cur did not reveal any toxicity of the conjugate, thus indicating the safety of its use. AA-Cur elicited moderate anti-tumor activity toward colon MC38-CEA or breast 4T1 carcinomas.</p>
</sec>
<sec id="S2004"><title>Conclusion</title>
<p>The tested conjugate of alginate and curcumin, AA-Cur, is non-toxic and safe, but exhibits limited anticancer activity.</p>
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