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Mutation in CDC42 Gene Set as a Response Biomarker for Immune Checkpoint Inhibitor Therapy.
Cancer Med
January 2025
School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
Background: Immune checkpoint inhibitors (ICIs) have achieved great success; however, a subset of patients exhibits no response. Consequently, there is a critical need for reliable predictive biomarkers. Our focus is on CDC42, which stimulates multiple signaling pathways promoting tumor growth.
View Article and Find Full Text PDFPreservation of Cardiac Xenografts in a Model of Infant Human Cardiac Transplantation.
Xenotransplantation
January 2025
Division of Cardiac Surgery, Department of Surgery, Children's Hospital of Los Angeles, Los Angeles, California, USA.
Introduction: There is no standard protocol for management of organ preservation for orthotopic, life-sustaining cardiac xenotransplantation, particularly for hearts from pediatric sized donors. Standard techniques and solutions successful in human allotransplantation are not viable. We theorized that a solution commonly used in reparative cardiac surgery in human children would suffice by exploiting the advantages inherent to xenotransplantation, namely the ability to reduce organ ischemic times by co-locating the donor and recipient.
View Article and Find Full Text PDFRecipient sex and donor leukemic cell characteristics determine leukemogenesis in patient-derived models.
Haematologica
January 2025
University Clinic Tübingen, Department for Internal Medicine II, University of Tübingen, Tübingen, Germany; German Cancer Consortium (DKTK), partner site Tübingen, a partnership between DKFZ and University Hospital Tübingen.
In acute myeloid leukemia (AML), leukemogenesis depends on cell-intrinsic genetic aberrations and thus, studies on AML require investigations in an in vivo setting as provided by patient derived xenografts (PDX) models. Here we report that, next to leukemic cell characteristics, recipient sex highly influences the outgrowth of AML cells in PDX models, with females being much better repopulated than males in primary as well as secondary transplantation assays. Testosterone may be the more important player since, strikingly, better engraftment was seen in castrated versus control male recipients, while ovariectomy did not significantly impair engraftment in females.
View Article and Find Full Text PDFDental implant in esthetic zone: A case report.
SAGE Open Med Case Rep
January 2025
PhD in Health Science Program, Faculty of Medicine, Mahasarakham University, Mahasarakham, Thailand.
This case report emphasizes the complexities involved in dental implant placement within the anterior esthetic zone, focusing on the integration of advanced surgical techniques and meticulous prosthetic design for optimal esthetic and functional results. A 28-year-old male presented with the absence of the upper left central incisor, which had been extracted 5 years prior due to fracture. Clinical and radiographic assessments indicated normal alveolar bone levels; however, the esthetic demands required a specialized approach.
View Article and Find Full Text PDFDHODH Inhibition Suppresses and Inhibits the Growth of Medulloblastoma in a Novel In Vivo Zebrafish Model.
Cancers (Basel)
December 2024
Division of Pediatric Oncology and Pediatric Surgery, Department of Women's and Children's Health, Karolinska Institutet, 171 77 Stockholm, Sweden.
Background/objectives: Medulloblastoma (MB) is the most common high-grade paediatric brain tumour, with group 3 MB patients having the worst prognosis. A high prevalence of group 3 tumours shows overexpression of the oncogene, making it a potential therapeutic target. However, attempts to directly inhibit have so far demonstrated limited success.
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