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Arias, E.

Publications and source records attributed to Arias, E..

4 recordsLinked to original sources
bioRxiv2026

Circulating Immune Profiling Reveals Immune Signatures Associated with Disease Stage and Outcome in Endometrial Cancer

Although the tumor immune microenvironment has been studied in endometrial cancer, the systemic immune alterations associated with disease progression and their potential prognostic significance remain poorly defined. In this study, peripheral blood immune subsets were characterized by multiparametric flow cytometry in 67 patients with EC and 20 healthy controls, including dendritic cells, MDSCs, T-cell subsets, NK cells, and exhaustion and senescence associated markers. Immune profiles were similar between healthy controls and patients with early-stage disease, whereas advanced tumors showed marked changes, including dendritic cell expansion, reduced CD4+ T-cell proportions, and increased frequencies of CD8+CD27-CD28- and CD8+CD57+ populations. Among clinicopathologic features, MDSC levels were associated with tumor grade and myometrial infiltration, while regulatory T cells were increased in TP53-mutated and microsatellite-stable tumors. In the advanced cohort (n=31), non-responders frequently displayed elevated CD8+, CD8+CD27-CD28-, and CD8+CD57+ levels alongside decreased CD27+CD28+ proportions. In multivariable Cox models, higher baseline CD8+ (HR 1.13), CD8+ CD27-CD28- (HR 1.04), and CD8+CD57+ proportions (HR 1.07; all p<0.05) were independently associated with shorter PFS, whereas higher CD27+CD28+ levels were associated with improved PFS. CD27-CD28- proportions were also linked to worse PFS by Kaplan-Meier analysis (HR 5.1, log-rank p=0.005). Longitudinal analysis (n=28) showed that senescent-like lymphocyte levels remained associated with progression across timepoints (OR 18.80), whereas total CD8+ proportions diverged progressively, reaching significance only from 6 months onward. Together, these findings identify systemic immune remodeling as a characteristic of advanced endometrial cancer and support the potential of circulating immune profiling for patient stratification and prognostic assessment, pending validation in larger prospective cohorts.

cancer biology↗
bioRxiv2025

Unravelling the influence of light on inshore coral and sponge recruits and their substrate communities

Recruitment of progeny to coral reef populations involves complex ecological interactions, influenced by environmental factors such as altered underwater light conditions associated with poor water quality. Here, we exposed newly settled corals (Acropora millepora and Acropora cf. tenuis), the sponge (Phyllospongia foliascens), and their substrate communities to various light intensities and spectral profiles relevant to turbid inshore reefs. Coral and sponge recruit survivorship and growth generally exhibited an inverted U-shaped response to light intensity, suggesting environmental optima at lower light levels, while the influence of light spectra remained less clear within environmentally realistic treatment combinations. Crustose coralline algae cover similarly peaked at lower light levels, whereas turf algae increased with higher light conditions. Competitive interactions between the substrate communities and the recruits, along with photophysiological responses, were also assessed. Our results suggest that altered light characteristics associated with turbidity may not be as detrimental to coral and sponge recruits as other sediment-related stressors.

ecology↗
bioRxiv2020

The proteasomal deubiquitinating enzyme PSMD14 regulates macroautophagy by controlling Golgi-to-ER retrograde transport

Ubiquitination regulates several biological processes. Here, we search for ubiquitin-related genes implicated in protein membrane trafficking performing a High-Content siRNA Screening including 1,187 genes of the human "ubiquitinome" using Amyloid Precursor Protein (APP) as a reporter. We identified the deubiquitinating enzyme PSMD14, a subunit of the 19S regulatory particle of the proteasome, specific for K63-Ub chains in cells, as a novel key regulator of Golgi-to-endoplasmic reticulum (ER) retrograde transport. Silencing or pharmacological inhibition of PSMD14 caused a robust and rapid inhibition of Golgi-to-ER retrograde transport which leads to a potent blockage of macroautophagy by a mechanism associated with the retention of Atg9A and Rab1A at the Golgi apparatus. Because pharmacological inhibition of the proteolytic core of the 20S proteasome did not recapitulate these effects, we concluded that PSMD14, and their K-63-Ub chains, act as a crucial regulator factor for macroautophagy by controlling Golgi-to-ER retrograde transport.

cell biology↗