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Triethylamine-mediated protonation-deprotonation unlocks dual-drug self assembly to suppress breast cancer progression and metastasis.
Proc Natl Acad Sci U S A
February 2025
Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China.
Carrier-free nanomedicines exhibited significant potential in elevating drug efficacy and safety for tumor management, yet their self assembly typically relied on chemical modifications of drugs or the incorporation of surfactants, thereby compromising the drug's inherent pharmacological activity. To address this challenge, we proposed a triethylamine (TEA)-mediated protonation-deprotonation strategy that enabled the adjustable-proportion self assembly of dual drugs without chemical modification, achieving nearly 100% drug loading capacity. Molecular dynamic simulations, supported by experiment evidence, elucidated the underlying self-assembly mechanism.
View Article and Find Full Text PDFHER2 positive primary breast squamous cell carcinoma with good prognosis: a case report.
AME Case Rep
November 2024
Department of Clinical Laboratory Diagnosis, Shijiazhuang Pingan Hospital, Hebei Medical University, Shijiazhuang, China.
Background: Primary breast squamous cell carcinoma (PBSCC) is a unique histopathological type of breast cancer. The majority of current case reports of PBSCC are triple-negative tumors with poor prognosis. Due to its heterogeneous clinical course, no unified management is achieved.
View Article and Find Full Text PDFCirculating Free RNA as a Therapeutic Evaluation in Diffuse Large B-cell Lymphoma: A Case Series from the Indonesian Cancer Center.
Acta Med Indones
October 2024
1. Department of Hematology and Medical Oncology, Dharmais National Cancer Center Hospital, Jakarta, Indonesia. 2. Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia..
Cancer is still the leading cause of death worldwide. Despite advances in diagnosis, management with the rituximab, cyclophosphamide, doxorubicin hydrochloride, vincristine sulfate, and prednisone (R-CHOP) chemotherapy regimen, and careful clinical and radiologic evaluation, diffuse large B-cell lymphoma (DLBCL) still carries high recurrence in clinical practice. This case series aims to assess the potential of circulating free RNA as a biomarker for evaluating therapeutic responses in DLBCL.
View Article and Find Full Text PDFFerroptosis Inducers Erastin and RSL3 Enhance Adriamycin and Topotecan Sensitivity in ABCB1/ABCG2-Expressing Tumor Cells.
Int J Mol Sci
January 2025
Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institutes of Environmental Health Sciences (NIH), Research Triangle Park, Durham, NC 27709, USA.
Acquired resistance to chemotherapeutic drugs is the primary cause of treatment failure in the clinic. While multiple factors contribute to this resistance, increased expression of ABC transporters-such as P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and multidrug resistance proteins-play significant roles in the development of resistance to various chemotherapeutics. We found that Erastin, a ferroptosis inducer, was significantly cytotoxic to NCI/ADR-RES, a P-gp-expressing human ovarian cancer cell line.
View Article and Find Full Text PDFApelinergic System Affects Electrocardiographic Abnormalities Induced by Doxorubicin.
Biomedicines
January 2025
Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland.
: Anthracyclines remain a pivotal element of numerous tumor management regimens; however, their utilization is associated with a range of adverse effects, the most significant of which is cardiotoxicity. Research is constantly being conducted to identify substances that could be incorporated into ongoing cancer chemotherapy to mitigate anthracycline-induced cardiotoxicity. Recently, the apelinergic system has received a lot of attention in this field due to its involvement in cardiovascular regulation.
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