Article
Biochemistry & Molecular Biology
Verena Boschert, Jonas Teusch, Urs D. A. Mueller-Richter, Roman C. Brands, Stefan Hartmann
Summary: PKM2 is commonly phosphorylated at Tyr105 in HNSCC, and its levels depend on tyrosine kinase activity. It is also correlated with the expression of CD44 and has an impact on the metabolism of HNSCC cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Biochemistry & Molecular Biology
Sindhu Nair, James A. Bonner, Markus Bredel
Summary: EGFR is overexpressed in head and neck squamous cell carcinoma and anti-EGFR strategies have shown some clinical benefit but often lead to resistance. Mutations in various domains of the EGFR gene can impact drug binding, radiation response, and overall survival in HNSCC patients. Understanding the EGFR mutational landscape and its effects on treatment resistance can help stratify patients for targeted therapies and maximize therapeutic benefits.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Oncology
Arthur Yan, Alaa Hanna, Thomas G. Wilson, Rohan Deraniyagala, Daniel J. Krauss, Vincent P. Grzywacz, Di Yan, George D. Wilson
Summary: The study identified a significant correlation between pretreatment CD44 expression and tumor volume with a DRM greater than 0.8. GLUT1 expression was associated with tumor volume with an SUV0 greater than 20, while SUVmax and DRM were found to be independent imaging parameters.
RADIOTHERAPY AND ONCOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Xin Zhou, Xiaoshen Wang
Summary: This review provides a detailed illustration of the biology, genomic features, and immune landscapes of HPV-associated HNSCC, supporting the synergistic effect of radioimmunotherapy. Current evidence and ongoing clinical trials suggest the potential of radioimmunotherapy in recurrent/metastatic or definitive settings. Future challenges include optimization of radiotherapy and the incorporation of novel therapeutic options.
Review
Medicine, General & Internal
Kamila Romanowska, Agnieszka Sobecka, Agnieszka A. Rawluszko-Wieczorek, Wiktoria M. Suchorska, Wojciech Golusinski
Summary: Head and neck squamous carcinoma (HNSCC) is the sixth most prevalent cancer worldwide, with molecular pathogenesis involving cell cycle disorders, intercellular signaling, proliferation, squamous cell differentiation, and apoptosis. In addition to genetic mutations, epigenetic alterations such as DNA methylation and histone modifications play a key role in promoting cancer formation and progression, making them potential biomarkers and therapeutic targets for HNSCC.
Review
Oncology
Chengcheng Liao, Jiaxing An, Zhangxue Tan, Fangping Xu, Jianguo Liu, Qian Wang
Summary: Glycosylation is a crucial posttranslational modification of proteins that plays a significant role in human cancer progression, especially in head and neck squamous cell carcinoma (HNSCC). Understanding the regulatory mechanisms of protein glycosylation is important for controlling the progression and malignant transformation of HNSCC.
Article
Medicine, Research & Experimental
Vaishali Chandel, Saurabh Maru, Arun Kumar, Ashok Kumar, Ashok Sharma, Brijesh Rathi, Dhruv Kumar
Summary: Head and Neck tumors exhibit highly altered metabolism, with cancer cells utilizing different pathways for energy production. Monocarboxylate transporters play a crucial role in regulating lactate and maintaining pH balance, essential for cancer cell survival and growth control.
Article
Oncology
Zongtai Qi, Yating Liu, Michael Mints, Riley Mullins, Reilly Sample, Travis Law, Thomas Barrett, Angela L. Mazul, Ryan S. Jackson, Stephen Y. Kang, Patrik Pipkorn, Anuraag S. Parikh, Itay Tirosh, Joseph Dougherty, Sidharth V. Puram
Summary: Tumors are composed of diverse cells rather than a uniform ball of cells. Recent studies have shown that deconvolution algorithms can be used to computationally estimate cell-type proportions from gene expression data, although their performance in tumor tissues remains unclear.
Article
Oncology
Usha Patel, Sadhana Kannan, Swapnil U. Rane, Neha Mittal, Poonam Gera, Asawari Patil, Subhakankha Manna, Vishwayani Shejwal, Vanita Noronha, Amit Joshi, Vijay M. Patil, Kumar Prabhash, Manoj B. Mahimkar
Summary: This study identifies CD44 and CD44v6 as potential predictive biomarkers for NCRT response in HPV-negative LA-HNSCC patients, and CD98hc as an independent negative prognostic biomarker. These findings can help identify which HNSCC patients are most suitable for specific treatments.
BRITISH JOURNAL OF CANCER
(2022)
Article
Oncology
Shao Wenhua, Takaaki Tsunematsu, Masaaki Umeda, Hiroaki Tawara, Natsumi Fujiwara, Yasuhiro Mouri, Rieko Arakaki, Naozumi Ishimaru, Yasusei Kudo
Summary: Recently, it has been reported that the partial-epithelial-mesenchymal transition (p-EMT) program is associated with metastasis in head and neck squamous cell carcinoma (HNSCC). The study focused on the role of a novel cancer-specific POSTN isoform, Iso5, in HNSCC and found that Iso5 promoted invasion together with another isoform, Iso3. The researchers suggest that Iso5 can be a useful marker for detecting cancer cells undergoing p-EMT and a potential target for diagnosis and therapy in HNSCC.
Review
Biochemistry & Molecular Biology
Ching-Yun Hsieh, Ching-Chan Lin, Wei-Chao Chang
Summary: Taxanes, especially docetaxel, are widely used in combination therapy for head and neck squamous cell carcinoma (HNSCC) and have shown advantages in improving patient outcomes. Taxanes not only function as antimitotics, but also impair various oncogenic signaling pathways. However, the development of drug resistance remains a major obstacle to treatment response.
Article
Cell Biology
Julia Ingruber, Dragana Savic, Teresa Bernadette Steinbichler, Susanne Sprung, Felix Fleischer, Rudolf Glueckert, Gabriele Schweigl, Ira-Ida Skvortsova, Herbert Riechelmann, Jozsef Dudas
Summary: The study found that in head and neck squamous cell carcinoma, Slug gene expression was significantly higher while KLF4 gene expression was significantly lower. There was a significant negative correlation between KLF4 and Slug gene expression in the majority of HNSCC samples. TGF-β1 contributed to the downregulation of KLF4 and the upregulation of Slug.
Review
Biochemistry & Molecular Biology
Shengjian Jin, Yasusei Kudo, Taigo Horiguchi
Summary: Ubiquitination and deubiquitination are two common post-translational modifications of proteins, affecting their intracellular localization, stability, and function. Deubiquitination is involved in various cellular processes, including histone modification, cell cycle regulation, apoptosis, and cancer development. This review focuses on the understanding of the function of deubiquitinating enzymes in head and neck squamous cell carcinoma (HNSCC) and discusses potential therapeutic strategies for HNSCC patients.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Cell Biology
Chenhang Yu, Qiang Li, Yu Zhang, Zhi-Fa Wen, Heng Dong, Yongbin Mou
Summary: Head and neck squamous cell carcinoma (HNSCC) has a high incidence and mortality rate. Immunotherapy, with its potential for a broad and long-lasting antitumor response, has become an important therapeutic strategy for HNSCC. However, immune escape limits the effectiveness of immunotherapy. Various immunotherapy strategies, including immune checkpoint inhibitors, costimulatory agonists, antigenic vaccines, oncolytic virus therapy, adoptive T cell transfer, and targeted therapy, have been developed for HNSCC. Each strategy has its unique advantages, and their appropriate application has significant value for the treatment of HNSCC.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Oncology
Ruoyan Cao, Lin Cui, Jiayu Zhang, Xianyue Ren, Bin Cheng, Juan Xia
Summary: This study identifies subtypes of head and neck squamous cell carcinoma based on immune-related lncRNAs and characterizes their biological behaviors. The researchers found that certain subtypes are associated with good prognosis and sensitivity to immunotherapy, and identified a critical lncRNA TRG-AS1 involved in the tumor microenvironment. This provides new potential targets for the treatment of this subtype.
CANCER CELL INTERNATIONAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Takako Naruse, Kouji Ohta, Hiroki Kato, Yoko Ishida, Hideo Shigeishi, Miyuki Sakuma, Akiko Fukui, Takayuki Nakagawa, Kei Tobiume, Hiromi Nishi, Masaaki Takechi
Summary: The immune response of oral mucosal cells against cytosolic dsDNA invasion involves the activation of intracellular receptors, RIG-I and IFI16, and the enhancement of TNF-alpha.
Article
Dentistry, Oral Surgery & Medicine
Hideo Shigeishi, Sho Yokoyama, Hiroshi Murodumi, Miyuki Sakuma, Shohei Fukada, Satoshi Okuda, Nao Yamakado, Shigehiro Ono, Masaaki Takechi, Kouji Ohta
Summary: The study demonstrated that melatonin enhances cisplatin-induced cell death in mesenchymal-like CD44(high) OSCC cells by promoting miR-181c-5p to inhibit DERL1. This suggests that melatonin plays a critical role in promoting cisplatin-induced cytotoxicity in mesenchymal-like CD44(high) OSCC cells.
JOURNAL OF ORAL PATHOLOGY & MEDICINE
(2022)
Article
Oncology
Hiroki Kato, Kouji Ohta, Miyuki Sakuma, Shohei Fukada, Takako Naruse, Hideo Shigeishi, Hiromi Nishi, Masaaki Takechi
Summary: Innate immune systems in the oral cavity play important roles in defending against viral invasion of oral mucosa. This study found that the isoforms of PARP13, ZAPL and ZAPS, are expressed in oral mucosal cells and contribute to host defense against viral infection of the oral mucosa.
MOLECULAR MEDICINE REPORTS
(2022)
Article
Multidisciplinary Sciences
Hiromi Nishi, Kouji Ohta, Yuri Kuramoto, Hideo Shigeishi, Taiji Obayashi, Yukio Yoshioka, Masaru Konishi, Shuichi Munenaga, Hisao Nagoshi, Tetsumi Yoshida, Noriyasu Fukushima, Naoya Kakimoto, Hiroki Ohge, Hidemi Kurihara, Tatsuo Ichinohe, Hiroyuki Kawaguchi
Summary: This study found a relationship between the oral environment and febrile neutropenia (FN) during chemotherapy, with periodontal inflamed surface area (PISA) being an independent factor associated with FN onset. Therefore, periodontitis treatment before starting cancer treatment is recommended as supportive care for preventing FN during chemotherapy.
SCIENTIFIC REPORTS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Hideo Shigeishi, Kouji Ohta, Masaru Sugiyama
Summary: This study aimed to investigate the risk factors for HPV16/18 and candida infection in the oral cavity in Japanese people without oral cancer or premalignant lesions. The study found that smoking is an important risk factor for oral HPV16 infection and co-infection with HPV16 and candida can be found in the oral cavity.
ORAL SCIENCE INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yoshino Kaneyasu, Hideo Shigeishi, Kouji Ohta, Masaru Sugiyama
Summary: This study found that the deflection and splaying of single tufts in PBT toothbrushes differed between the top-middle and bottom-middle tufts after use, with no significant change in bristle abrasion.
Article
Medicine, General & Internal
Hideo Shigeishi, Iori Oka, Cheng-Yih Su, Natsuki Hamada, Mariko Nakamura, Rumi Nishimura, Masaru Sugiyama, Kouji Ohta
Summary: The study revealed that oral EBV is associated with oral hygiene and the spread of inflamed periodontal tissue, while diabetes may be a risk factor for dual infection with oral EBV and P. gingivalis.
Article
Dentistry, Oral Surgery & Medicine
Shohei Fukada, Kouji Ohta, Miyuki Sakuma, Misaki Akagi, Hiroki Kato, Takako Naruse, Takayuki Nakagawa, Hideo Shigeishi, Hiromi Nishi, Masaaki Takechi, Tomonao Aikawa
Summary: This study found that Sunitinib treatment can cause cell injury and apoptosis in oral keratinocytes, which is promoted by p38 activation and STAT3 downregulation. These findings suggest that oral mucosal complications may be associated with the cytotoxic effects of Sunitinib on oral keratinocytes.
Article
Chemistry, Physical
Kazuki Sasaki, Yoshiaki Ninomiya, Masaaki Takechi, Kanji Tsuru, Kunio Ishikawa, Hideo Shigeishi, Kouji Ohta, Tomonao Aikawa
Summary: The physical properties and antimicrobial release ability of antibiotic-loaded apatite cement/alpha-tricalcium phosphate composites were studied in vitro. The composites maintained the minimum inhibitory concentration of gentamicin against Staphylococcus aureus for 30 days. This suggests that the gentamicin-loaded composites have potential as a drug delivery system.
Article
Biology
Natsuki Hamada, Hideo Shigeishi, Iori Oka, Mio Sasaki, Honami Kitasaki, Mariko Nakamura, Kanako Yano, Chia-Hsin Wu, Yoshino Kaneyasu, Tomoko Maehara, Masaru Sugiyama, Kouji Ohta
Summary: This study aimed to investigate the association between oral human herpesvirus-6 (HHV-6) and HHV-7 infection and periodontitis. Tongue swab samples from 74 older adults were analyzed for oral HHV-6 and HHV-7 DNA. HHV-7 infection was significantly associated with a deep periodontal pocket, higher positive rate of a >= 6-mm periodontal pocket with bleeding on probing (BOP), and higher periodontal inflamed surface area (PISA) values. However, there was no significant association between HHV-7 and lifestyle-related diseases such as hypertension, diabetes, and dyslipidemia.
Article
Cell Biology
Hiroki Kato, Kouji Ohta, Misaki Akagi, Shohei Fukada, Miyuki Sakuma, Takako Naruse, Hiromi Nishi, Hideo Shigeishi, Masaaki Takechi, Tomonao Aikawa
Summary: Nucleic acids induce inflammatory response in oral keratinocytes, and LL-37 is able to modulate this response by enhancing the expression of inflammatory factor CXCL10 through RIG-I-mediated pathway.
Review
Oncology
Hideo Shigeishi
Summary: HPV has been found to be involved in the development of cervical cancers and oropharyngeal cancers, but its role in oral cancer development is still controversial. This review summarizes the clinical characteristics, diagnosis, treatment, and prognosis of HPV-positive oral cancers, and discusses the mechanisms of HPV-related oral cancer development. The HPV DNA positivity rates in oral squamous cell carcinoma (OSCC) are 20-30%, with HPV16 being the most common high-risk HPV. The E6/E7 mRNA positivity rates are 2-6% in OSCC. It is recommended to detect both high-risk HPV DNA and E6/E7 mRNA to determine the presence of active HPV in OSCC. Surgical treatment is the first-line therapy for both HPV-positive and -negative oral cancer, but the prognosis of HPV-positive OSCC patients is still uncertain. HPV16 may play a vital role in the malignant transformation of oral epithelial dysplasia, and there may be different types of HPV-associated oral cancer, such as integrated HPV DNA-positive OSCC with stable E6/E7 expression and episomal HPV DNA-positive OSCC. Further research is needed to gain new insights into the role of episomal HPV DNA in oral carcinogenesis.
INTERNATIONAL JOURNAL OF CLINICAL ONCOLOGY
(2023)
Article
Medicine, General & Internal
Iori Oka, Hideo Shigeishi, Kouji Ohta
Summary: This study aimed to investigate the relationship between oral Candida Albicans infection/co-infection and periodontitis in middle-aged and older Japanese individuals. The results showed that some patients with Candida Albicans also had Porphyromonas gingivalis co-infection, which was significantly associated with deeper periodontal pockets and bleeding on probing.
MEDICINA-LITHUANIA
(2022)
Article
Dentistry, Oral Surgery & Medicine
Miyuki Sakuma, Kouji Ohta, Shohei Fukada, Hiroki Kato, Takako Naruse, Takayuki Nakagawa, Hideo Shigeishi, Hiromi Nishi, Masaaki Takechi
Summary: Oral fibroblasts can recognize Candida cell components and increase the expression of antifungal peptides, such as defensin factors, to enhance the immune defense against Candida infection.
JOURNAL OF APPLIED ORAL SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Sala Surekha, Md Zia Ur Rahman
Summary: This letter proposes a nonoperative game theoretic model to implement a spectrum-sensing mechanism and analyze the spectral usage rates of a CR-based IoT networks. A utility function is designed to analyze the performance of the proposed algorithm in terms of mean arrival rate, average throughput, and mean delay as a function of increasing load.
IEEE SENSORS LETTERS
(2022)