The emerging roles of sphingosine 1-phosphate and SphK1 in cancer resistance: a promising therapeutic target oleh Samar Sami Alkafaas, Mohamed I. Elsalahaty, Doha F. Ismail, Mustafa Ali Radwan, Sara Samy Elkafas, Samah A. Loutfy, Rami M. Elshazli, Narjes Baazaoui, Ahmed Ezzat Ahmed, Wael Hafez, Mohanad Diab, Mohamed Sakran, Mohamed T. El-Saadony, Khaled A. El-Tarabily, Hani K. Kamal, Mohamed Hessien