2-Aminobenzoxazoles have been synthesized as ligands for the hepatitis C virus (HCV) internal ribosome entry site (IRES) RNA. The compounds were designed to explore the less basic benzoxazole system as a replacement for the core scaffold in previously discovered benzimidazole viral translation inhibitors. Structure-activity relationships in the target binding of substituted benzoxazole ligands were investigated.
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http://dx.doi.org/10.1016/j.bmcl.2014.05.088 | DOI Listing |
Oncoimmunology
December 2025
Heidelberg University, Medical Faculty Heidelberg, Department of Dermatology and National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and University Hospital Heidelberg, Heidelberg, Germany.
Immune checkpoint blockers have substantially improved prognosis of melanoma patients, nevertheless, resistance remains a significant problem. Here, intrinsic and extrinsic factors in the tumor microenvironment are discussed, including the expression of alternative immune checkpoints such as lymphocyte activation gene 3 (LAG-3) and T-cell immunoglobulin and mucin domain-containing protein 3 (TIM-3). While most studies focus on immune cell expression of these proteins, we investigated their melanoma cell intrinsic expression by immunohistochemistry in melanoma metastases of 60 patients treated with anti-programmed cell death protein 1 (PD-1) and/or anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) therapy, and correlated it with the expression of potential ligands, RNA sequencing data and clinical outcome.
View Article and Find Full Text PDFEur J Med Res
December 2024
Department of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Sepsis is a major medical problem which causes millions of deaths worldwide every year. The host immune response in sepsis is characterized by acute inflammation and a simultaneous state of immunosuppression. In the later stage of sepsis, immunosuppression is a crucial factor that increases the susceptibility of septic patients to secondary infection and mortality.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
Given the limited comprehensive data on the bone marrow (BM) immune environment in acute myeloid leukemia (AML), we analyzed the distribution and phenotype of T cell subsets, including γδ T cells, and their immune checkpoint (IC) ligands on blasts. We performed multiparametric flow cytometry with BM samples taken from 89 AML patients at the time of diagnosis, remission, and relapse/refractory status after chemotherapy and 13 healthy controls (HCs) to identify immune-related risk factors. Compared to the HCs, the T cells of the AML patients exhibited exhausted features including higher TIGIT levels and similar levels of PD-1 and TIM-3.
View Article and Find Full Text PDFBiomed Eng Comput Biol
December 2024
PharmaQsar Bioinformatics Firm, Kampala, Uganda.
Introduction: The rate of acute hepatitis C increased by 7% between 2020 and 2021, after the number of cases doubled between 2014 and 2020. With the current adoption of pan-genotypic HCV therapy, there is a need for improved availability and accessibility of this therapy. However, double and triple DAA-resistant variants have been identified in genotypes 1 and 5 with resistance-associated amino acid substitutions (RAASs) in NS3/4A, NS5A, and NS5B.
View Article and Find Full Text PDFOncol Lett
February 2025
Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing 100029, P.R. China.
Tumor metastasis is a phenomenon in which tumor cells grow in distant organs far from their primary site and is the final and most lethal manifestation of cancer. Most patients with cancer succumb to metastatic disease, not primary tumors. The occurrence of cardiac metastases is rare, but any primary tumor can potentially metastasize to the heart.
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