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Dyagil IS, Dmytrenko IV, Sholoiko VV, Fedorenko VG, Shlyakhtichenko TY, Petrusha OO, Martina ZV, Tovstogan AO, Silayev YO, Stupakova ZV, Minchenko ZM. CHRONIC MYELOID LEUKEMIA COURSE IN PERSONS EXPOSED TO IONIZING RADIATION AS A RESULT OF THE CHORNOBYL ACCIDENT. PROBLEMY RADIAT︠S︡IĬNOÏ MEDYT︠S︡YNY TA RADIOBIOLOHIÏ 2020; 25:443-455. [PMID: 33361853 DOI: 10.33145/2304-8336-2020-25-443-455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Describe and characterize the peculiarities of the chronic myeloid leukemia (CML) course and responseto treatment in patients irradiated as a result of the Chornobyl nuclear power plant (ChNPP) accident based on theassessment of clinical-laboratory and clinical parameters. MATERIALS AND METHODS The CML patients (n = 33) exposed to ionizing radiation as a result of the ChNPP accidentwere enrolled. The comparison group consisted of CML patients (n = 725) with no history of radiation exposure. Allpatients were in the chronic phase of the disease. Clinical, hematological and molecular genetic research methodswere applied. RESULTS Patients exposed to ionizing radiation as a result of the ChNPP accident had no differences in CML manifestation, as well as in classical genetic markers at the onset of the disease compared with patients with no historyof radiation exposure. Reduction of tumor clone on imatinib therapy was significantly less effective in the patientsexposed to ionizing radiation than in cases of no history of radiation exposure. Cases of primary resistance were statistically significantly prevalent in the ChNPP accident consequences clean-up workers while in the residents ofradiologically contaminated areas a statistically significant increase in probability of loss of complete cytogeneticresponse (development of secondary resistance) to imatinib therapy was found. An association was found betweenthe radiation exposure and probability of loss of complete cytogenetic response to imatinib therapy in this group ofpatients. CONCLUSION The radiation exposure in the history even many years before the onset of CML is an unfavorable exogenous factor responsible for the development of resistance to imatinib therapy.
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Affiliation(s)
- I S Dyagil
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - I V Dmytrenko
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - V V Sholoiko
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - V G Fedorenko
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - T Yu Shlyakhtichenko
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - O O Petrusha
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - Z V Martina
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - A O Tovstogan
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - Yu O Silayev
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - Z V Stupakova
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
| | - Z M Minchenko
- State Institution «National Research Center for radiation Medicine of the National Academy of medical Sciences of Ukraine», 53 Yury Illienko str., Kyiv, 04050, Ukraine
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