dc.creator | Idoate Gastearena, Miguel Ángel | es |
dc.creator | López Janeiro, Álvaro | es |
dc.creator | Lecumberri Aznarez, Arturo | es |
dc.creator | Arana Iñiguez, Iñígo | es |
dc.creator | Guillén Grima, Francisco | es |
dc.date.accessioned | 2023-06-07T13:20:20Z | |
dc.date.available | 2023-06-07T13:20:20Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Idoate Gastearena, M.Á., López Janeiro, Á., Lecumberri Aznarez, A., Arana Iñiguez, I. y Guillén Grima, F. (2022). A Quantitative Digital Analysis of Tissue Immune Components Reveals an Immunosuppressive and Anergic Immune Response with Relevant Prognostic Significance in Glioblastoma. Biomedicines, 10 (7), 1753. https://doi.org/10.3390/biomedicines10071753. | |
dc.identifier.issn | 2227-9059 | es |
dc.identifier.uri | https://hdl.handle.net/11441/147010 | |
dc.description.abstract | Objectives: Immunostimulatory therapies using immune checkpoint blockers show clinical
activity in a subset of glioblastoma (GBM) patients. Several inhibitory mechanisms play a relevant
role in the immune response to GBM. With the objective of analyzing the tumor immune microenvi ronment and its clinical significance, we quantified several relevant immune biomarkers. Design: We
studied 76 primary (non-recurrent) GBMs with sufficient clinical follow-up, including a subgroup of
patients treated with a dendritic cell vaccine. The IDH-mutation, EGFR-amplification, and MGMT
methylation statuses were determined. Several relevant immune biomarkers, including CD163, CD8,
PD1, and PDL1, were quantified in representative selected areas by digital image analysis and semi quantitative evaluation. The percentage of each immune expression was calculated with respect to
the total number of tumor cells. Results: All GBMs were wild-type IDH, with a subgroup of classical
GBMs according to the EGFR amplification (44%). Morphologically, CD163 immunostained microglia
and intratumor clusters of macrophages were observed. A significant direct correlation was found
between the expression of CD8 and the mechanisms of lymphocyte immunosuppression, in such a
way that higher values of CD8 were directly associated with higher values of CD163 (p < 0.001), PDL1
(0.026), and PD1 (0.007). In a multivariate analysis, high expressions of CD8+ (HR = 2.05, 95%CI
(1.02–4.13), p = 0.034) and CD163+ cells (HR 2.50, 95%CI (1.29–4.85), p = 0.007), were associated with
shorter survival durations. The expression of immune biomarkers was higher in the non-classical
(non-EGFR amplified tumors) GBMs. Other relevant prognostic factors were age, receipt of the
dendritic cell vaccine, and MGMT methylation status. Conclusions: In accordance with the inverse
correlation between CD8 and survival and the direct correlation between effector cells and CD163
macrophages and immune-checkpoint expression, we postulate that CD8 infiltration could be placed
in a state of anergy or lymphocytic inefficient activity. Furthermore, the significant inverse correlation
between CD163 tissue concentration and survival explains the relevance of this type of immune cell
when creating a strong immunosuppressive environment. This information may potentially be used
to support the selection of patients for immunotherapy. | es |
dc.format | application/pdf | es |
dc.format.extent | 26 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Biomedicines, 10 (7), 1753. | |
dc.rights | Atribución 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | Glioblastoma | es |
dc.subject | Image analysis | es |
dc.subject | Immunotherapy | es |
dc.subject | Immune barrier | es |
dc.subject | M2 macrophage | es |
dc.subject | Microglia | es |
dc.title | A Quantitative Digital Analysis of Tissue Immune Components Reveals an Immunosuppressive and Anergic Immune Response with Relevant Prognostic Significance in Glioblastoma | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Citología e Histología Normal y Patológica | es |
dc.relation.projectID | PI20/00626 | es |
dc.relation.publisherversion | https://www.mdpi.com/2227-9059/10/7/1753 | es |
dc.identifier.doi | 10.3390/biomedicines10071753 | es |
dc.journaltitle | Biomedicines | es |
dc.publication.volumen | 10 | es |
dc.publication.issue | 7 | es |
dc.publication.initialPage | 1753 | es |
dc.contributor.funder | Instituto de Salud Carlos III | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |