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Anticancer and anti-inflammatory properties of chitin and chitosan oligosaccharides.

Azuma K, Osaki T, Minami S, Okamoto Y - J Funct Biomater (2015)

Bottom Line: Previous reports indicate that N-acetyl-d-glucosamine oligomers (chitin oligosaccharide; NACOS) and d-glucosamine oligomers (chitosan oligosaccharide; COS) have various biological activities, especially against cancer and inflammation.In this review, we have summarized the findings of previous investigations that have focused on anticancer or anti-inflammatory properties of NACOS and COS.Moreover, we have introduced recent evaluation of NACOS and COS as functional foods against cancer and inflammatory disease.

View Article: PubMed Central - PubMed

Affiliation: Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan. kazu-azuma@muses.tottori-u.ac.jp.

ABSTRACT
Previous reports indicate that N-acetyl-d-glucosamine oligomers (chitin oligosaccharide; NACOS) and d-glucosamine oligomers (chitosan oligosaccharide; COS) have various biological activities, especially against cancer and inflammation. In this review, we have summarized the findings of previous investigations that have focused on anticancer or anti-inflammatory properties of NACOS and COS. Moreover, we have introduced recent evaluation of NACOS and COS as functional foods against cancer and inflammatory disease.

No MeSH data available.


Related in: MedlinePlus

Effects of orally administered COS on NF-κB activation in colon in an experimental IBD model. (A) Areas stained positive for NF-κB are shown by arrows. Data are for one mouse per group from NT, DSS, COS, and GlcN groups. Bar = 100 μm. (B) Data are the mean ± S.E. of 30 fields/100× magnification field in each group (Steel-Dwass test). ** p < 0.01. Reprinted with permission. Copyright 2015 Elsevier [48].
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jfb-06-00033-f003: Effects of orally administered COS on NF-κB activation in colon in an experimental IBD model. (A) Areas stained positive for NF-κB are shown by arrows. Data are for one mouse per group from NT, DSS, COS, and GlcN groups. Bar = 100 μm. (B) Data are the mean ± S.E. of 30 fields/100× magnification field in each group (Steel-Dwass test). ** p < 0.01. Reprinted with permission. Copyright 2015 Elsevier [48].

Mentions: Our group has also evaluated the anti-inflammatory effects of orally administered COS in a mouse model [48] and discovered that COS improved shortening of colon length and tissue injury (as assessed by histology) (Figure 2). In addition, COS inhibited myeloperoxidase activation in inflammatory cells as well as activation of NF-κB, COX-2, and iNOS thereby preventing inflammation of colonic mucosa (Figure 3 and Figure 4).


Anticancer and anti-inflammatory properties of chitin and chitosan oligosaccharides.

Azuma K, Osaki T, Minami S, Okamoto Y - J Funct Biomater (2015)

Effects of orally administered COS on NF-κB activation in colon in an experimental IBD model. (A) Areas stained positive for NF-κB are shown by arrows. Data are for one mouse per group from NT, DSS, COS, and GlcN groups. Bar = 100 μm. (B) Data are the mean ± S.E. of 30 fields/100× magnification field in each group (Steel-Dwass test). ** p < 0.01. Reprinted with permission. Copyright 2015 Elsevier [48].
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384099&req=5

jfb-06-00033-f003: Effects of orally administered COS on NF-κB activation in colon in an experimental IBD model. (A) Areas stained positive for NF-κB are shown by arrows. Data are for one mouse per group from NT, DSS, COS, and GlcN groups. Bar = 100 μm. (B) Data are the mean ± S.E. of 30 fields/100× magnification field in each group (Steel-Dwass test). ** p < 0.01. Reprinted with permission. Copyright 2015 Elsevier [48].
Mentions: Our group has also evaluated the anti-inflammatory effects of orally administered COS in a mouse model [48] and discovered that COS improved shortening of colon length and tissue injury (as assessed by histology) (Figure 2). In addition, COS inhibited myeloperoxidase activation in inflammatory cells as well as activation of NF-κB, COX-2, and iNOS thereby preventing inflammation of colonic mucosa (Figure 3 and Figure 4).

Bottom Line: Previous reports indicate that N-acetyl-d-glucosamine oligomers (chitin oligosaccharide; NACOS) and d-glucosamine oligomers (chitosan oligosaccharide; COS) have various biological activities, especially against cancer and inflammation.In this review, we have summarized the findings of previous investigations that have focused on anticancer or anti-inflammatory properties of NACOS and COS.Moreover, we have introduced recent evaluation of NACOS and COS as functional foods against cancer and inflammatory disease.

View Article: PubMed Central - PubMed

Affiliation: Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan. kazu-azuma@muses.tottori-u.ac.jp.

ABSTRACT
Previous reports indicate that N-acetyl-d-glucosamine oligomers (chitin oligosaccharide; NACOS) and d-glucosamine oligomers (chitosan oligosaccharide; COS) have various biological activities, especially against cancer and inflammation. In this review, we have summarized the findings of previous investigations that have focused on anticancer or anti-inflammatory properties of NACOS and COS. Moreover, we have introduced recent evaluation of NACOS and COS as functional foods against cancer and inflammatory disease.

No MeSH data available.


Related in: MedlinePlus