Abstract:
:Tumor-associated macrophages (TAMs) are preferentially M2 skewed and promote tumor growth, angiogenesis, invasion, and/or metastasis. In this study, we have analyzed the in vitro immunomodulatory potential of a non-toxic neem leaf glycoprotein (NLGP) in reprogramming Stage III supraglottic laryngeal tumor cell lysate (SLTCL) induced M2 TAMs to their classical anti-tumor shape (M1). Data generated from this study support that NLGP is effective in preventing the SLTCL induced generation (CD68(+)CD206(+)IL-10(high) to CD68(+)CD206(-)IL-10(low) TAMs) and functions (NO(low) to NO(high), MHC-I(low) to MHC-I(high), CD80(low) to CD80(high)) of pro-tumorous M2 macrophages, which in turn associated with sustained anti-tumor effector functions by promoting cytotoxic T cell activities and suppressing regulatory T cells. Furthermore, our data also suggest that NLGP prevents M2 skewness of TAMs by downregulating phosphorylation of targeted STAT3.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Goswami KK,Barik S,Sarkar M,Bhowmick A,Biswas J,Bose A,Baral Rdoi
10.1016/j.molimm.2014.01.015subject
Has Abstractpub_date
2014-06-01 00:00:00pages
119-27issue
2eissn
0161-5890issn
1872-9142pii
S0161-5890(14)00025-Xjournal_volume
59pub_type
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