Uterine Leiomyosarcoma

IRS4 fueled cancer dependency through PI3K-Akt activation, and domain analysis revealed the PH and PTB domains, which have a predicted drug pocket, to be dispensable, suggesting degradation-based modalities. These data reveal IRS4 as a target in IRS4-expressing cancers and suggest inhibitory approaches.

Inflammation and immunity play a pivotal role in the pathogenic mechanism of ULMS. Our study findings suggest that CALCRL can serve as an immune-inflammatory biomarker for ULMS, providing a new perspective for exploring the development and diagnosis of ULMS.

PLAG1-rearranged uterine mesenchymal tumours demonstrate notable morphologic heterogeneity, predominantly presenting as myxoid leiomyosarcoma. We recommend using the integrated diagnostic term 'PLAG1-rearranged uterine mesenchymal tumour with features of [specific morphology]' to capture both the genetic alteration and histologic spectrum, accompanied by a comment regarding the limited experience and potential for recurrence.

P2, N=30, Recruiting, Dana-Farber Cancer Institute | Not yet recruiting --> Recruiting

ATRX mutational status may serve as a potential biomarker for prognosis and therapeutic stratification. Future clinical trials investigating epigenetic therapies could offer novel treatment strategies for ATRX-deficient sarcomas.

In cultured LMS cells, proliferation correlated with increased nuclear smoothelin positivity. These findings suggest that smoothelin is linked to proliferative capacity in SMTs, and its altered subcellular distribution may have potential utility in the pathological evaluation of SMTs.

Finally, autophagy-related analyses demonstrated increased LC3B-II levels accompanied by p62 accumulation, suggesting altered autophagic processing rather than simple activation of autophagy. Collectively, these findings demonstrate that bortezomib exerts cytotoxic effects in Ut-LMS cells through coordinated regulation of proteasome inhibition-associated apoptosis, cell cycle control, mitochondrial dysfunction, and autophagy-related signaling, with cell line-specific differences in stress response pathways.

Liquid biopsy holds promise for improving uLMS diagnosis and management. However, standardization and biomarker validation remain essential to achieve reliable clinical translation and enable earlier, more precise treatment strategies.

P2, N=30, Not yet recruiting, Dana-Farber Cancer Institute

This case emphasizes including GIST in the differential diagnosis of large pelvic masses, even when imaging suggests a gynecologic origin. Definitive diagnosis relies on a multidisciplinary approach to ensure accurate classification and appropriate oncologic therapy.

P2, N=48, Recruiting, M.D. Anderson Cancer Center | Not yet recruiting --> Recruiting

Mgenes modulate ULMS's TIME, offering immunotherapeutic targets. This study advances ULMS molecular/immune understanding for translational research.