The neuropeptide Y (NPY) system is a multireceptor/multiligand system consisting of four receptors in humans (hY(1), hY(2), hY(4), hY(5)) and three agonists (NPY, PYY, PP) that activate these receptors with different potency. The relevance of this system in diseases like obesity or cancer, and the different role that each receptor plays influencing different biological processes makes this system suitable for the design of subtype selectivity studies. In this review we focus on the latest findings within the NPY system, we summarize recent mutagenesis studies, structure activity relationship studies, receptor chimera, and selective ligands focusing also on the binding mode of the native agonists.
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http://dx.doi.org/10.3389/fendo.2013.00005 | DOI Listing |
Clin Exp Med
January 2025
Department of Thoracic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
Introduction Recently, immune cells within the tumor microenvironment (TME) have become crucial in regulating cancer progression and treatment responses. The dynamic interactions between tumors and immune cells are emerging as a promising strategy to activate the host's immune system against various cancers. The development and progression of hepatocellular carcinoma (HCC) involve complex biological processes, with the role of the TME and tumor phenotypes still not fully understood.
View Article and Find Full Text PDFRev Gastroenterol Peru
January 2025
Hospital Nacional Edgardo Rebagliati Martins, Lima, Perú; Universidad San Ignacio de Loyola, Lima, Perú.
Unlabelled: Endoscopic submucosal dissection (ESD) is the technique of choice in the management of early gastric cancer. Recently, it is also considered as an absolute indication in selected cases of early undifferentiated gastric cancer (U-EGC).
Objectives: In the present study, the first documented cases of ESD in patients with U-EGC are presented and analyzed.
J Immunother Cancer
January 2025
Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing, China
Background: Intratumoral oncolytic herpes simplex virus 2-GM CSF (OH2) injection has shown safety and antitumor efficacy in patients with solid tumors. Here, we examined the safety and efficacy of OH2 as a single agent or in combination with HX008, an NMPA-approved PD-1 inhibitor, in locally advanced or metastatic sarcoma patients.
Methods: This multicenter, phase 1/2 trial enrolled patients with injectable sarcoma lesions, who had failed at least 1 or more lines of standard treatment.
Int J Pharm
January 2025
Department of Pathology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, China. Electronic address:
Oral squamous cell carcinoma (OSCC) is the most common subtype of head and neck malignancies, characterized by a five-year survival rate that remains persistently below 50%, indicative of limited progress in therapeutic interventions. There is an urgent imperative to develop innovative therapeutic strategies, warranting the investigation of advanced treatment modalities. Nanocarriers offer a promising avenue by significantly enhancing drug properties and pharmacokinetics.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 211166, P. R. China.
A previous study classifies solid tumors based on collagen deposition and immune infiltration abundance, identifying a refractory subtype termed armored & cold tumors, characterized by elevated collagen deposition and diminished immune infiltration. Beyond its impact on immune infiltration, collagen deposition also influences tumor angiogenesis. This study systematically analyzes the association between immuno-collagenic subtypes and angiogenesis across diverse cancer types.
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