2021
Plasmacytoid Dendritic Cells in Patients with MGUS and Multiple Myeloma
KNIGHT, Andrea, Lucie ŘÍHOVÁ, Romana KRÁLOVÁ, Miroslav PENKA, Zdeněk ADAM et. al.Základní údaje
Originální název
Plasmacytoid Dendritic Cells in Patients with MGUS and Multiple Myeloma
Autoři
KNIGHT, Andrea (203 Česká republika, garant, domácí), Lucie ŘÍHOVÁ (203 Česká republika), Romana KRÁLOVÁ (203 Česká republika), Miroslav PENKA (203 Česká republika), Zdeněk ADAM (203 Česká republika), Luděk POUR (203 Česká republika), Martin PISKÁČEK (40 Rakousko, domácí) a Roman HAJEK (203 Česká republika)
Vydání
Journal of Clinical Medicine, Basel, MDPI, 2021, 2077-0383
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30218 General and internal medicine
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.964
Kód RIV
RIV/00216224:14110/21:00120139
Organizační jednotka
Lékařská fakulta
UT WoS
000689192700001
Klíčová slova anglicky
plasmacytoid dendritic cells; MGUS; multiple myeloma; immunosuppressive tumor microenvironment
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 9. 2021 06:57, Mgr. Tereza Miškechová
Anotace
V originále
Background: Plasmacytoid dendritic cells (pDCs) play prominent roles in mediating innate and adaptive immune responses. However, it is unclear how pDCs contribute to the immunosuppressive tumor microenvironment described in multiple myeloma (MM). Methods: Newly diagnosed myeloma patients (MM, n = 37) were analyzed to determine the pDC counts in comparison to peripheral blood (PB, n = 53) and bone marrow (BM, n = 10) samples of age-matched healthy donors (HD) using flow cytometry. Second, proliferation of myeloma tumor cells in the presence of freshly isolated pDCs was examined. Third, production of IFN alpha by pDCs co-cultured with MM cells was determined by intracellular staining. Results: We found a highly significant reduction of circulating pDCs (p < 0.0001) and in bone marrow (p < 0.0001) of MM patients compared to HD. We also observed a significant decrease of pDCs (p = 0.004) in BM in patients with monoclonal gammopathy of undetermined significance (MGUS, n = 12). Importantly, we determined that pDCs promote proliferation specifically of MM cells and not the stromal cells and that pDCs secrete IFN alpha upon co-culture with MM tumor cells. Conclusions: Our results show altered pDC frequencies in the BM microenvironment in MGUS and MM patients at diagnosis. We showed the tumor-promoting function of pDCs that may mediate immune deficiencies affecting long-term disease control and treatment outcome.
Návaznosti
NV15-32935A, projekt VaV |
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NV19-05-00410, projekt VaV |
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