Abstract:
:Radiation therapy for head and neck cancer results in severe secondary side-effects in salivary glands. We previously demonstrated that the administration of IGF1 preserves or restores salivary gland function following radiation. Based on these findings, we propose to study the effect of IGF1 on human head and neck carcinoma cells. Head and neck tumor cells treated with radiation have significant reductions in tumor cell survival, as measured by MTT and crystal violet assays, regardless of IGF1 pre-treatment. Head and neck squamous carcinoma cell xenografts treated with concurrent radiation+IGF1 also exhibit significant tumor growth delay; however, growth rates are elevated compared with those in irradiated xenografts. In contrast, administration of IGF1 after radiation treatment has no effect on tumor xenograft growth rates. Analysis of these data suggests that localized delivery may be required for concurrent therapy to prevent secondary side-effects of radiotherapy, while post-therapy administration of IGF1 could be considered for the restoration of salivary function.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Victory K,Burd R,Fribley A,Sittadjody S,Arnett D,Klein RR,Limesand KHdoi
10.1177/0022034510388037subject
Has Abstractpub_date
2011-03-01 00:00:00pages
347-52issue
3eissn
0022-0345issn
1544-0591pii
0022034510388037journal_volume
90pub_type
杂志文章abstract::Recent reports have suggested functional interactions between the masticatory and head motor systems. However, the neurophysiological mechanisms behind these phenomena have not been thoroughly investigated. In this study, the motor unit activity was recorded bilaterally from the dorsal neck splenius muscles (SPL) whil...
journal_title:Journal of dental research
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abstract::Extracellular vesicles (EVs), several tens to hundreds of nanometers in size, are vesicles secreted by cells for intercellular communication. EVs released from mesenchymal stem cells (MSC-EVs) have the potential to treat multiple diseases. This study aimed to determine the effects of MSC-EVs on bisphosphonate-related ...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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abstract::Dendritic cells, such as Langerhans cells (LC), in different ectodermal compartments may have different functional capabilities. The present study was undertaken to compare oral Langerhans cells (LC) with those of the epidermis in terms of their ability to co-stimulate T-cells in vitro. A Mixed Epithelial Cell Lymphoc...
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abstract::Interfacial bond strengths of light-activated composites were measured as a function of age using a transverse strength test. Bond strength between layers decreased with the age of the initial layer and reflected the setting curves of the composites. The highly-filled composites exhibited the greatest bond strengths. ...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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abstract::Matrix metalloproteinases (MMPs) produced by resident and inflammatory cells in response to periodontopathogens play a major role in periodontal tissue destruction. Our aim was to investigate the effects of A-type cranberry proanthocyanidins (AC-PACs) on: (i) the production of various MMPs by human monocyte-derived ma...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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journal_title:Journal of dental research
pub_type: 杂志文章,随机对照试验
doi:10.1177/0022034509360155
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abstract::A major extracellular protein of cultured adult human gingival fibroblasts was shown to be fibronectin by indirect immunofluorescence, lactoperoxidase catalyzed iodination and metabolic radiolabeling. Fibronectin preparations from these cells possessed the biological properties of agglutination of sheep red blood cell...
journal_title:Journal of dental research
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journal_title:Journal of dental research
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pub_type: 杂志文章
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journal_title:Journal of dental research
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journal_title:Journal of dental research
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更新日期:2010-01-01 00:00:00