ABSTRACT
Endometrial cancer (EC) is a malignancy that poses a threat to woman's health worldwide. Building upon prior work, we explored the inhibitory effect of verteporfin on EC. We showed that verteporfin can damage the mitochondria of EC cells, leading to a decrease of mitochondrial membrane potential and an increase in ROS (reactive oxygen species). In addition, verteporfin treatment was shown to inhibit the proliferation and migration of EC cells, promote apoptosis, and reduce the expression of mitophagy-related proteins PINK1/parkin and TOM20. The ROS inhibitor N-Acetyl Cysteine was able to rescue the expression of PINK1/parkin proteins. This suggests that verteporfin may inhibit mitophagy by elevating ROS levels, thereby inhibiting EC cell viability. The effect of verteporfin on mitophagy supports further investigation as a potential therapeutic option for EC.
ABSTRACT
BACKGROUND & OBJECTIVE: There were few reports about surgery for primary adenoid cystic carcinoma of cervical trachea. This study was designed to evaluate the efficacy of surgical resection of a series of 13 patients with primary adenoid cystic carcinoma of cervical trachea. METHODS: Thirteen patients who underwent surgical resection with biopsy-proven primary adenoid cystic carcinoma of cervical trachea were reviewed retrospectively. RESULTS: Of 13 patients, 6 patients showed that tracheal invasion were more than 40 mm length, 7 less than 40 mm length. Seven patients showed extratracheal invasion, 2 showed distance metastases, and 1 showed metastases in regional lymph nodes. Nine patients were treated with sleeve resection of trachea with primary anastomosis (average length of 34.8 mm resected), of which 3 underwent laryngeal release and 8 reserved laryngeal function; 2 received laryngectomy with end tracheostomy and 2 received partial tracheal resection and a patch of autologous tissue reconstruction. Of 13 patients, 4 patients were treated with complete resection and 9 with incomplete resection alone or combined by postoperative irradiation. No death occurred during operation. Two tracheal stenoses and 1 laryngeal recurrent nerve palsy after operation were observed. Seven patients died after therapy, of which 6 patients failed to local management, 1 case died of distance metastases. The total 5- and 10-year survival rates were 69.2% (9/13) and 50.0% (5/10), respectively. The 5- and 10-year survival rates were 75.0% (3/4) and 75.0% (3/4) for complete resection group, 55.0% (5/9) and 33.0% (2/6) for incomplete resection group, 83.3% (5/6) and 83.3% (5/6) for non-extratracheal invasion group, 57.1% (4/7) and 0% for extratracheal invasion group (P=0.001). CONCLUSION: Sleeve resection of trachea with primary reconstruction is the major treatment of the patients suffering from primary cervical tracheal adenoid cystic carcinoma with the long-term survival and function reservation.
