Abstract:
:Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin cancers. In the treatment of cSCC, it is necessary to remove it completely, and reconstructive surgery, such as a skin graft or a local or free flap, will be required, depending on the size, with donor-site morbidity posing a burden to the patient. The high hydrostatic pressure (HHP) technique has been developed as a physical method of decellularizing various tissues. We previously reported that HHP at 200 MPa for 10 min could inactivate all cells in the giant congenital melanocytic nevus, and we have already started a clinical trial using this technique. In the present study, we explored the critical pressurization condition for annihilating cSCC cells in vitro and confirmed that this condition could also annihilate cSCC in vivo. We prepared 5 pressurization conditions in this study (150, 160, 170, 180, and 190 MPa for 10 min) and confirmed that cSCC cells were killed by pressurization at ≥160 MPa for 10 min. In the in vivo study, the cSCC cells inactivated by HHP at 200 MPa for 10 min were unable to proliferate after injection into the intradermal space of mice, and transplanted cSCC tissues that had been inactivated by HHP showed a decreased weight at 5 weeks after implantation. These results suggested that HHP at 200 MPa for 10 min was able to annihilate SCC, so HHP technology may be a novel treatment of skin cancer.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Mitsui T,Morimoto N,Mahara A,Notodihardjo SC,Le TM,Munisso MC,Kakudo N,Yamaoka T,Kusumoto Kdoi
10.1155/2020/3074742subject
Has Abstractpub_date
2020-03-07 00:00:00pages
3074742eissn
2314-6133issn
2314-6141journal_volume
2020pub_type
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