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OncoReview
|
2017
|
vol. 7
|
issue 2
98-103
EN
Anaemia is one of the most frequently diagnosed complications in cancer patients and also occurs during the course of cancer treatment. The condition can be observed in as many as 60–70% of patients who receive chemotherapy or radiotherapy. As a cancer symptom, it is found in 30% of cases and is particularly severe when accompanied by kidney failure. In patients undergoing cancer therapy, anaemia is treated with PRBC transfusions and/or recombinant human erythropoietin. The article discusses 3 case studies of patients with late-stage cancer (pleural mesothelioma, urothelial kidney carcinoma, and lung carcinoma), who suffered from moderate to severe anaemia during aggressive treatment with chemo- and radiotherapy. All 3 patients were treated with erythropoietin, which made it possible for them to stay on chemotherapy and/or undergo radiotherapy. Thanks to erythropoietin, they did not require PRBC transfusions and their general condition and quality of life improved. They tolerated the treatment well and no complications were observed.
EN
Preclinical studies conducted over the past 10 years have shown that EPO is not only a hormone that regulates erythropoiesis, a major growth factor, but also a cytoplasm with pleiotropic activity that also affects cancer cells. The expression of EPO and its receptor (EPOR) occurs in many cancers of various origins. The EPO/EPOR system is active in many cancer cells and is involved in the modification of molecular signaling pathways and the stimulation of growth, survival, motility and the ability to create metastases. EPO can also increase the resistance of cancer cells in vitro and in vivo to chemotherapy and radiotherapy.
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