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001-es BibID:BIBFORM076942
Első szerző:Méhes Gábor (patológus)
Cím:Hypoxia related carbonic anhydrase IX expression is associated with unfavourable response to first-line therapy in classical Hodgkin's lymphoma / Gábor Méhes, Orsolya Matolay, Lívia Beke, Marianna Czenke, Ádám Jóna, Zsófia Miltényi, Árpád Illés, Judit Bedekovics
Dátum:2019
ISSN:0309-0167 1365-2559
Megjegyzések:The present study evaluates the impact of hypoxia related carbonic anhydrase IX and XII isoenzyme expression as a basic adaptive mechanism to neutralize intracellular acidosis in classical Hodgkin's lymphoma (cHL). METHODS: 81 primary biopsies and 15 relapsed tissue samples diagnosed with cHL were analyzed for necrosis, CAIX and CAXII expression and cell proliferation to compare hypoxia related histological and functional data with survival characteristics. RESULTS: Variable, but highly selective cell membrane CAIX expression could be demonstrated in Hodgkin-Reed-Sternberg (HRS) cells in 39/81 samples (48.1%) while virtually no staining presented in their microenvironment. In contrast, CAXII expression in HRS-cells could be demonstrated in only 18/77 samples (23.4%) with significant stromal positivity (50/77, 64.9%). The CAIX+ phenotype was strongly associated with lymphocyte depletion (4/4, 100%) and nodular sclerosis (29/51, 56.9%) subtypes. CAIX/Ki-67 dual immunohistochemistry demonstrated suppressed cell proliferation in CAIX+ compared to CAIX- HRS-cells (p<0.001). 72 months progression free survival (PFS) was significantly lower for the CAIX+ group (0.192) compared with the CAIX- group (0.771)(p<0.001) while the overall survival (OS) did not differ (p=0.097). CONCLUSION: Hypoxic stress related adaptation - highlighted by CAIX expression - results in cellular quiescence in HRS-cells potentially contributing to the short term failure of the standard chemotherapy in cHL.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Hodgkin's lymphoma
adaptation
cell cycle
hypoxia
resistance
survival
Megjelenés:Histopathology. - 74 : 5 (2019), p. 699-708. -
További szerzők:Matolay Orsolya (1989-) Beke Lívia Czenke Marianna Jóna Ádám (1985-) (orvos) Miltényi Zsófia (1975-) (belgyógyász, haematológus) Illés Árpád (1959-) (belgyógyász, haematológus, onkológus) Bedekovics Judit (1986-) (orvos)
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