scholarly journals Stoichioproteomics study of differentially expressed proteins and pathways in head and neck cancer

2023 ◽  
Vol 83 ◽  
Author(s):  
Y. Lan ◽  
Y. Liang ◽  
X. Xiao ◽  
Y. Shi ◽  
M. Zhu ◽  
...  

Abstract Hypoxia is a prominent feature of head and neck cancer. However, the oxygen element characteristics of proteins and how they adapt to hypoxia microenvironments of head and neck cancer are still unknown. Human genome sequences and proteins expressed data of head and neck cancer were retrieved from pathology atlas of Human Protein Atlas project. Then compared the oxygen and carbon element contents between proteomes of head and neck cancer and normal oral mucosa-squamous epithelial cells, genome locations, pathways, and functional dissection associated with head and neck cancer were also studied. A total of 902 differentially expressed proteins were observed where the average oxygen content is higher than that of the lowly expressed proteins in head and neck cancer proteins. Further, the average oxygen content of the up regulated proteins was 2.54% higher than other. None of their coding genes were distributed on the Y chromosome. The up regulated proteins were enriched in endocytosis, apoptosis and regulation of actin cytoskeleton. The increased oxygen contents of the highly expressed and the up regulated proteins might be caused by frequent activity of cytoskeleton and adapted to the rapid growth and fast division of the head and neck cancer cells. The oxygen usage bias and key proteins may help us to understand the mechanisms behind head and neck cancer in targeted therapy, which lays a foundation for the application of stoichioproteomics in targeted therapy and provides promise for potential treatments for head and neck cancer.

Tumor Biology ◽  
2012 ◽  
Vol 33 (3) ◽  
pp. 707-721 ◽  
Author(s):  
S. K. Kundu ◽  
M. Nestor

2010 ◽  
Vol 2 (1) ◽  
pp. 43-51
Author(s):  
Vedang Murthy ◽  
Sayan Kundu ◽  
Tanweer Shahid ◽  
Ashwini Budrukkar ◽  
Tejpal Gupta ◽  
...  

Abstract Though early stage head and neck cancers can be cured either by surgery or radiation, patients with locally advanced disease continues to pose a therapeutic challenge. Locoregional failure is the major cause of death in head and neck cancers. As the outcome of locally advanced head and neck cancer is less than promising, a combined modality approach is generally undertaken in this group of patients. The combination of surgery, radiation and more recently, chemotherapy and targeted therapy can improve outcomes in locally advanced head and neck cancer patients. This overview discusses the rationale and role of postoperative radiotherapy (PORT) in advanced head and neck cancers, the radiotherapy technique in brief and methods of enhancing the efficacy of postoperative RT by altering the fractionation schedules and adding chemotherapy and targeted therapy.


Cancer ◽  
2008 ◽  
Vol 112 (12) ◽  
pp. 2635-2645 ◽  
Author(s):  
Corey J. Langer

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