Glycolipid-Based Compound Α-Sulfoquinovosyl-Acylpropanediol Improves Radiation Response in Human Mesothelioma Xenografts Using Athymic Murine Systems

Dr. Dmitry A. Volkov — 2026-05-01

Malignant mesothelioma represents a highly aggressive neoplasm with limited therapeutic responsiveness and poor prognosis despite multimodal treatment strategies. Radiotherapy remains a cornerstone in its management; however, intrinsic and acquired resistance significantly compromises treatment efficacy. This study investigates the potential of a glycolipid-derived compound, α-sulfoquinovosyl-acylpropanediol (SQAP), to enhance radiosensitivity in human mesothelioma xenograft models using athymic murine systems. The research is grounded in the hypothesis that modulation of tumor microenvironmental dynamics, particularly angiogenesis and hypoxia, can significantly improve radiation response.

The study integrates experimental and theoretical frameworks derived from prior investigations on tumor radiosensitizers, angiogenic regulation, and microenvironmental remodeling. SQAP is evaluated for its mechanistic role in altering hypoxia-inducible pathways, inhibiting angiogenesis, and modulating DNA repair processes. Using xenograft models, the compound’s influence on tumor growth delay, vascular normalization, and cellular apoptosis under radiation exposure is systematically analyzed.

Results indicate that SQAP significantly enhances radiation-induced cytotoxicity by facilitating oxygenation within tumor tissues and disrupting angiogenic signaling pathways. The compound demonstrates a dual mechanism involving both direct inhibition of tumor proliferation and indirect sensitization via microenvironmental modification. These findings align with existing literature emphasizing the importance of angiogenic switch regulation and hypoxia mitigation in improving radiotherapy outcomes (Hanahan and Folkman, 1996; Jain, 2005).

The study further evaluates translational implications, highlighting SQAP’s potential integration into clinical radiotherapy protocols. However, limitations related to preclinical model generalizability and long-term toxicity require further investigation. Overall, this research contributes to the evolving paradigm of radiosensitization through targeted molecular interventions, offering a promising avenue for improving therapeutic efficacy in resistant malignancies such as mesothelioma.

An Analysis of The Operational Efficiency of Authorized Economic Operators in Uzbekistan

Ismatullayeva Shoira Nurlibekovna — 2026-05-09

This article presents an empirical analysis of the development dynamics and operational efficiency of the Authorized Economic Operator (AEO) institution in Uzbekistan over the period 2021–2025. The study examines the growth rates of enterprises holding AEO status, their categorical distribution, and performance indicators disaggregated by customs lane (green, yellow, and red). The findings indicate that, while AEO status has significantly increased the share of green-lane processing in export operations, the yellow lane continues to predominate in import operations. The article systematically identifies the structural factors underlying this discrepancy, including carrier risk profiles, the mixed cargo effect, and the influence of risk management algorithms. The study concludes with policy recommendations aimed at enhancing the effectiveness of the AEO programme through the certification of logistics intermediaries and the improvement of risk-based control mechanisms.

European International Journal of Multidisciplinary Research and Management Studies

Glycolipid-Based Compound Α-Sulfoquinovosyl-Acylpropanediol Improves Radiation Response in Human Mesothelioma Xenografts Using Athymic Murine Systems

An Analysis of The Operational Efficiency of Authorized Economic Operators in Uzbekistan