scholarly journals Up-Regulation of Cyclooxygenase 2 and Matrix Metalloproteinases-2 and -9 in Cutaneous Squamous Cell Carcinoma: Active Role of Inflammation and Tissue Remodeling in Carcinogenesis

2013 ◽  
Vol 25 (2) ◽  
pp. 145 ◽  
Author(s):  
Jeong-Hoon Lee ◽  
Mei Shan Piao ◽  
Jee-Young Choi ◽  
Sook Jung Yun ◽  
Jee-Bum Lee ◽  
...  
2021 ◽  
Vol 20 ◽  
pp. 153473542110316
Author(s):  
Liang Wang ◽  
Lei Xu ◽  
Yu Wang

Cutaneous squamous cell carcinoma (CSCC) is a malignant tumor that originates from keratinocytes in the epidermis or appendage. Traditional Chinese medicine Huaier has anti-tumor activity in various malignancies. Little is known about the role of Huaier in CSCC. Here, we investigated the function of Huaier in CSCC. We treated CSCC cell line (SCL-1 and A431) with a series of concentration gradients of Huaier to examine the half maximal inhibitory concentration (IC50) of Huaier on SCL-1 and A431 cells. The IC50 of Huaier on growth of SCL-1 and A431 cells were 6.96 and 7.57 mg/mL, respectively. Moreover, Huaier reduced the methylation levels of CDKN2A and TP53, and enhanced the expression of CDKN2A and TP53 in SCL-1 and A431 cells in a dosage-dependent manner. The expression of DNA methyltransferase DNMT1 was severely repressed by Huaier treatment in SCL-1 and A431 cells. DNMT1 overexpression enhanced the methylation levels of CDKN2A and TP53, and suppressed the expression of CDKN2A and TP53 in Huaier-treated SCL-1 and A431 cells. Huaier treatment inhibited proliferation, migration, and invasion of SCL-1 and A431 cells. However, inhibition of CDKN2A or TP53 reversed the influence of Huaier treatment on proliferation, migration, and invasion of CSCC cells. In conclusion, our data demonstrate that Huaier inhibits proliferation, migration, and invasion of CSCC cells by regulating DNA methylation of CDKN2A and TP53, thereby attenuating the progression of CSCC. Thus, Huaier extract may act as a drug for treating CSCC.


2020 ◽  
Vol Volume 13 ◽  
pp. 6777-6788
Author(s):  
Shuang Chen ◽  
Junli Ding ◽  
Yunlin Wang ◽  
Tao Lu ◽  
Lili Wang ◽  
...  

2019 ◽  
Vol 93 (7) ◽  
Author(s):  
Dana E. Rollison ◽  
Daniele Viarisio ◽  
Rossybelle P. Amorrortu ◽  
Tarik Gheit ◽  
Massimo Tommasino

ABSTRACT Evidence suggests that beta human papillomaviruses (HPVs), together with ultraviolet radiation, contribute to the development of cutaneous squamous cell carcinoma. Beta HPVs appear to be not the main drivers of carcinogenesis but rather facilitators of the accumulation of ultraviolet-induced DNA mutations. Beta HPVs are promoters of skin carcinogenesis, although they are dispensable for the maintenance of the malignant phenotype. Therefore, beta HPV represents a target for skin cancer prevention, especially in high-risk populations.


2014 ◽  
Vol 140 (6) ◽  
pp. 548 ◽  
Author(s):  
Joshua J. Thom ◽  
Eric J. Moore ◽  
Daniel L. Price ◽  
Jan L. Kasperbauer ◽  
Sidney J. Starkman ◽  
...  

2017 ◽  
Vol 30 (7) ◽  
pp. 919-927 ◽  
Author(s):  
Takamichi Ito ◽  
Gaku Tsuji ◽  
Fumitaka Ohno ◽  
Takeshi Nakahara ◽  
Hiroshi Uchi ◽  
...  

2019 ◽  
Author(s):  
Alok R. Khandelwal ◽  
Md Maksud Alam ◽  
Tara Moore-Medlin ◽  
Hillary A. Savage ◽  
Cherie-Ann O. Nathan

2019 ◽  
Vol 20 (8) ◽  
pp. 2009 ◽  
Author(s):  
Matthew J. Bottomley ◽  
Jason Thomson ◽  
Catherine Harwood ◽  
Irene Leigh

Cutaneous squamous cell carcinoma (cSCC) is the second most common skin cancer. In immunosuppressed populations it is a source of considerable morbidity and mortality due to its enhanced recurrence and metastatic potential. In common with many malignancies, leucocyte populations are both protective against cancer development and also play a role in ‘sculpting’ the nascent tumor, leading to loss of immunogenicity and tumor progression. UV radiation and chronic viral carriage may represent unique risk factors for cSCC development, and the immune system plays a key role in modulating the response to both. In this review, we discuss the lessons learned from animal and ex vivo human studies of the role of individual leucocyte subpopulations in the development of cutaneous SCC. We then discuss the insights into cSCC immunity gleaned from studies in humans, particularly in populations receiving pharmacological immunosuppression such as transplant recipients. Similar insights in other malignancies have led to exciting and novel immune therapies, which are beginning to emerge into the cSCC clinical arena.


Sign in / Sign up

Export Citation Format

Share Document