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Wando Mount Pleasant Library
Closed for Staff Day
Phone: (843) 805-6888
Village Library
Closed for Staff Day
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St. Paul's/Hollywood Library
Closed for Staff Day
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Otranto Road Library
Closed for Staff Day
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Mt. Pleasant Library
Closed for Staff Day
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Baxter-Patrick James Island
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Main Library
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Lectin-like Transcript-1 (LLT1) Expression in Oral Squamous Cell Carcinomas: Prognostic Significance and Relationship with the Tumor Immune Microenvironment.
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- Author(s): de Vicente, Juan C.; Lequerica-Fernández, Paloma; Rodrigo, Juan P.; Rodríguez-Santamarta, Tania; Blanco-Lorenzo, Verónica; Prieto-Fernández, Llara; Corte-Torres, Daniela; Vallina, Aitana; Domínguez-Iglesias, Francisco; Álvarez-Teijeiro, Saúl; García-Pedrero, Juana M.
- Source:
International Journal of Molecular Sciences; Apr2024, Vol. 25 Issue 8, p4314, 15p- Subject Terms:
- Source:
- Additional Information
- Abstract: Lectin-like transcript-1 (LLT1) expression is detected in different cancer types and is involved in immune evasion. The present study investigates the clinical relevance of tumoral and stromal LLT1 expression in oral squamous cell carcinoma (OSCC), and relationships with the immune infiltrate into the tumor immune microenvironment (TIME). Immunohistochemical analysis of LLT1 expression was performed in 124 OSCC specimens, together with PD-L1 expression and the infiltration of CD20+, CD4+, and CD8+ lymphocytes and CD68+ and CD163+-macrophages. Associations with clinicopathological variables, prognosis, and immune cell densities were further assessed. A total of 41 (33%) OSCC samples showed positive LLT1 staining in tumor cells and 55 (44%) positive LLT1 in tumor-infiltrating lymphocytes (TILs). Patients harboring tumor-intrinsic LLT1 expression exhibited poorer survival, suggesting an immunosuppressive role. Conversely, positive LLT1 expression in TILs was significantly associated with better disease-specific survival, and also an immune-active tumor microenvironment highly infiltrated by CD8+ T cells and M1/M2 macrophages. Furthermore, the combination of tumoral and stromal LLT1 was found to distinguish three prognostic categories (favorable, intermediate, and adverse; p = 0.029, Log-rank test). Together, these data demonstrate the prognostic relevance of tumoral and stromal LLT1 expression in OSCC, and its potential application to improve prognosis prediction and patient stratification. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of International Journal of Molecular Sciences is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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