Identification of Autofluorescent Cells in Human Angioimmunoblastic T-cell Lymphoma
Overview
Cell Biology
Affiliations
Endogenous cell autofluorescence is a common nuisance that complicates the use of fluorescence microscopy. When using fluorescence-labeled antibodies for specific cell labeling in tissue sections of human angioimmunoblastic T-cell lymphoma (AITL), we encountered with a problematic autofluorescence of multiple cells. These cells emitted fluorescence signals in the green, red and deep-red spectral range. Characterization of these autofluorescent cells solely on the basis of their autofluorescence failed. To identify these enigmatic cells residing the lymphoma tissue, we combined two imaging techniques-fluorescence and brightfield microscopy. Combined fluorescence/brightfield imaging of cells immunolabeled with a panel of CD antibodies raised against diverse cellular components allowed us to identify the autofluorescent cells in the AITL as eosinophils. These cells tended to accumulate in the vicinity of capillaries and arterioles apparently mediating the process of angiogenesis resembling other angiogenesis-associated diseases.
Viezens I, Knierim E, Deubzer H, Hauptmann K, Fassbender J, Morales-Gonzalez S Cancers (Basel). 2024; 16(13).
PMID: 39001514 PMC: 11240514. DOI: 10.3390/cancers16132452.
Chen Z, Zhu Q, Deng X, Yao W, Zhang W, Liu W Front Immunol. 2022; 13:987227.
PMID: 36325319 PMC: 9618886. DOI: 10.3389/fimmu.2022.987227.
Visualization of preimplantation uterine fluid absorption in mice using Alexa Fluor™ 488 Hydrazide†.
Li Y, Martin T, Hancock J, Li R, Viswanathan S, Lydon J Biol Reprod. 2022; 108(2):204-217.
PMID: 36308434 PMC: 9930399. DOI: 10.1093/biolre/ioac198.
Protease Profile of Tumor-Associated Mast Cells in Melanoma.
Atiakshin D, Kostin A, Buchwalow I, Samoilova V, Tiemann M Int J Mol Sci. 2022; 23(16).
PMID: 36012196 PMC: 9408654. DOI: 10.3390/ijms23168930.
Yadav B, Specht C, Lee C, Pokrovskii M, Huh J, Littman D PLoS Pathog. 2021; 17(8):e1009891.
PMID: 34464425 PMC: 8437264. DOI: 10.1371/journal.ppat.1009891.