| Title: | Morphological and immunocytochemical characterization of tumor spheroids in ascites from high-grade serous carcinoma |
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| Authors: | ID Miceska, Simona (Author)
ID Škof, Erik (Author)
ID Gašljević, Gorana (Author)
ID Kloboves-Prevodnik, Veronika (Author) |
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| Files: |  Miceska-2023-Morphological_and_Immunocytochemi.pdf (5,07 MB)
MD5: D4F84F83B9F6B650C9CB669B2AEDB598
 https://doi.org/10.3390/cells12192390
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | MF - Faculty of Medicine
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| Abstract: | Tumor spheroids in the ascites of high-grade serous carcinoma (HGSC) are poorly described. Our objective was to describe their morphological features, cellular composition, PD-1 and PD-L1 expression, and survival correlation of these parameters. The density and size of spheroids were assessed in Giemsa-stained smears; the cell composition of spheroids, including tumor cells, immune cells, capillaries, and myofibroblasts, as well as PD-1 and PD-L1 expression on tumor and immune cells was assessed in immunocytochemically stained cell block sections. Forty-seven patients with primary HGSC and malignant ascites were included. A cut-off value for a spheroid density of 10% was established, which significantly predicted overall survival. However, spheroid size did not correlate with survival outcomes. Spheroids were primarily composed of tumor cells, but the presence of lymphocytes and macrophages was also confirmed. Moreover, capillaries were present in the spheroids of three patients, but the presence of myofibroblasts was not confirmed. PD-1 was expressed on lymphocytes but not on tumor cells. PD-L1 expression was seen on both tumor and immune cells, assessed by 22C3 and SP263 antibody clones but not by the SP142 clone. Our results highlight the potential of routine cytopathological techniques to analyze spheroids in HGSC ascites as a valuable tool to investigate their potential as prognostic markers. |
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| Keywords: | ascites, cell blocks, high-grade serous carcinoma, ovarian carcinoma, spheroids, spheroid-associated immune cells, PD-1, PD-L1 |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 28.08.2023 |
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| Article acceptance date: | 28.09.2023 |
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| Publication date: | 30.09.2023 |
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| Publisher: | MDPI |
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| Year of publishing: | 2023 |
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| Number of pages: | Str. 1-14 |
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| Numbering: | Letn. 12, Št. 19, št. članka 2390 |
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| PID: | 20.500.12556/DKUM-87064  |
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| UDC: | 618.1 |
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| ISSN on article: | 2073-4409 |
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| COBISS.SI-ID: | 167619075 |
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| DOI: | 10.3390/cells12192390 |
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| Publication date in DKUM: | 14.02.2024 |
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| Views: | 514 |
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| Downloads: | 36 |
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| Metadata: |    |
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| Categories: | Misc.
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