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Due to a wide range of clinical response in patients un-dergoing neo-adjuvant chemoradiation for rectal cancer it is essential to understand molecular factors that lead to the broad response observed in patients receiving the same form of treatment.Despite extensive research in this field,the exact mechanisms still remain elusive.Data raging from DNA-repair to specific molecules lead-ing to cell survival as well as resistance to apoptosis have been investigated.Individually,or in combination,there is no single pathway that has become clinically applicable to date.In the following review,we describe the current status of various pathways that might lead to resistance to the therapeutic applications of ionizing radiation in rectal cancer.
Due to a wide range of clinical response in patients un-dergoing neo-adjuvant chemoradiation for rectal cancer it is essential to understand molecular factors that lead to the broad response observed in patients receiving the same form of treatment. Despite extensive research in this field, the exact mechanisms still remain elusive. Data raging from DNA-repair to specific molecules lead-ing to cell survival as well as resistance to apoptosis have been investigated. Individually, or in combination, there is no single pathway that has become clinically applicable to date .In the following review, we describe the current status of various pathways that might lead to resistance to the therapeutic applications of ionizing radiation in rectal cancer.