The use of histone deacetylase inhibitors has been proposed as a promising approach to increase the cell killing effect of DNA damage-inducing drugs in chemotherapy. However, the molecular mechanism of their action remains understudied. In the present article, we have assessed the effect of the histone deacetylase inhibitor sodium butyrate on the DNA damage response induced by the crosslinking ...

BACKGROUND Mitomycin C is an anti-fibroblast chemotherapeutic agent that has demonstrated promise in the treatment of head and neck cancer-related cervical stenosis. The present study investigates whether the application of mitomycin C at the time of dilation is both safe and effective in the treatment of head and neck cancer-related upper digestive tract stricture. METHODS Twelve patients wi...

OBJECTIVES The aim of the present study was to evaluate the efficacy and short-term safety of topical mitomycin-C, an antifibrotic agent, in preventing the recurrence of anastomotic strictures after surgical repair of esophageal atresia (EA). METHODS We retrospectively reviewed the medical records of patients with recurrent anastomotic strictures after EA surgery who underwent at least 3 esop...

Both the ERCC1-XPF complex and the proteins involved in homoIogous recombination (HR) have critical roles in inter-strand cross-link (ICL) repair. Here, we report that mitomycin C-induced lesions inhibit replication fork elongation. Furthermore, mitomycin C-induced DNA double-strand breaks (DSBs) are the result of the collapse of ICL-stalled replication forks. These are not formed through repli...

OBJECTIVE To compare the efficacy of external dacryocystorhinostomy (DCR) with and without intraoperative application of mitomycin-C in patients with chronic dacryocystitis. STUDY DESIGN An experimental study. PLACE AND DURATION OF STUDY Department of Ophthalmology, Bahawal Victoria Hospital (BVH), Bahawalpur, from September 2009 to December 2010. METHODOLOGY One hundred and sixty patient...

AIMS To evaluate the effect of T cell co-culture on mitomycin C treated and untreated Tenon's capsule fibroblasts. METHODS IL-2 dependent allogeneic T cells were incubated over a monolayer of mitomycin C treated or control fibroblasts. Fibroblast numbers were evaluated by direct counts using phase contrast microscopy. To determine whether T cell mediated lysis was a consequence of MHC mismatc...

Mitomycin C (MC), a commonly used anticancer drug, induces DNA damage via DNA alkylation. Decarbamoyl mitomycin C (DMC), another mitomycin lacking the carbamate at C10, generates similar lesions as MC. Interstrand cross-links (ICLs) are believed to be the lesions primarily responsible for the cytotoxicity of MC and DMC. The major ICL generated by MC (α-ICL) has a trans stereochemistry at the gu...