Impact of the Functional VNTR Variants of the Interleukin-1 Receptor Antagonist and Interleukin-4 Genes on Oral Squamous Cell Carcinoma

Tumor stromal components contribute to tumor development and invasion. However, the role of stromal cells in the contribution of bone marrow-derived cells (BMDCs) in oral squamous cell carcinoma (OSCC) invasion is unclear. In the present study, we created two different invasive OSCC patient-derived stroma xenografts (PDSXs) and analyzed and compared the effects of stromal cells on the relation of BMDCs and tumor invasion. We isolated stromal cells from two OSCC patients: less invasive verrucous OSCC (VSCC) and highly invasive conventional OSCC (SCC) and co-xenografted with the OSCC cell line (HSC-2) on green fluorescent protein (GFP)-positive bone marrow (BM) cells transplanted mice. We traced the GFP-positive BM cells by immunohistochemistry (IHC) and detected matrix metalloproteinase 2 (MMP2) expression on BM cells by double fluorescent IHC. The results indicated that the SCC-PDSX promotes MMP2-positive BMDCs recruitment to the invasive front line of the tumor. Furthermore, microarray analysis revealed that the expressions of interleukin 6; IL-6 mRNA and interleukin 1 beta; IL1B mRNA were higher in SCC stromal cells than in VSCC stromal cells. Thus, our study first reports that IL-6 and IL1B might be the potential stromal factors promoting the contribution of MMP2-positive BMDCs to OSCC invasion.

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Interleukin-1 as a Marker of Periodontitis with Oral Carcinoma – A Biochemical Study

Journal of Oral Health and Community Dentistry ◽

10.5005/johcd-7-3-137 ◽

2013 ◽

Vol 7 (3) ◽

pp. 137-139

Author(s):

U Sudhakar ◽

JA Sivaranjani ◽

MC Dayan

Keyword(s):

Squamous Cell Carcinoma ◽

Oral Squamous Cell Carcinoma ◽

Cell Carcinoma ◽

Squamous Cell ◽

Biochemical Study ◽

Interleukin 1 ◽

Bone Destruction ◽

Normal Subjects ◽

Enzyme Linked Immunosorbent Assay ◽

Whole Saliva

ABSTRACT AIM This biochemical study aimed at evaluating the level of interleukin-1beta in patients with oral squamous cell carcinoma as a reflection of amount of bone destruction leading to periodontitis in comparison with the normal healthy individuals. MATERIAL & METHOD The subjects were grouped under four major categories like chronic periodontits, chronic periodontitis with oral squamous cell carcinoma and squamous cell carcinoma alone and the control. Each group consisted of 10 subjects each. Unstimulated whole saliva was collected from each subject. IL-1 in saliva was measured by enzyme linked immunosorbent assay. RESULTS In the present study, IL-1 was significantly more in patients with cancer and periodontitis than patients with only cancer. When compared with the normal subjects IL-1 value was significantly more in subjects with carcinoma (0.016). CONCLUSION This study presents the first evidence of association between level of salivary biomarker interleukin 1 in subjects with periodontitis and in oral squamous cell carcinoma.

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