NY-ESO-1 (157-165)

NY-ESO-1 (157-165) is a synthetic peptide corresponding to amino acids 157 through 165 of the NY-ESO-1 cancer-testis antigen, a well-characterized protein expressed in various malignancies but with limited expression in normal tissues. This peptide segment is recognized for its immunogenic properties, particularly its ability to serve as a defined epitope for T cell recognition in immunological studies. Due to its specificity and relevance in tumor immunology, NY-ESO-1 (157-165) is widely utilized in research focused on antigen processing, immune monitoring, and the development of peptide-based immunological assays. Its synthetic origin ensures batch-to-batch consistency, making it a reliable reagent for experimental reproducibility across diverse peptide-focused research applications.

Epitope Mapping: As a defined sequence derived from the immunodominant region of NY-ESO-1, this peptide is instrumental in mapping T cell epitopes and characterizing the specificity of cellular immune responses. Researchers employ it to identify and verify the precise regions of the NY-ESO-1 antigen that are recognized by cytotoxic T lymphocytes, enabling detailed studies of antigen presentation and immune recognition mechanisms. Such mapping is crucial for understanding the immunological landscape of cancer-testis antigens and for the rational design of targeted immunological interventions.

Immunomonitoring: NY-ESO-1 (157-165) is widely used as a probe in ex vivo assays to detect and quantify antigen-specific T cell populations in peripheral blood or tissue samples. By stimulating T cells with this peptide, investigators can assess the frequency, phenotype, and functionality of NY-ESO-1-specific cytotoxic T lymphocytes using techniques such as ELISPOT, intracellular cytokine staining, or flow cytometry. These immunomonitoring approaches are essential for evaluating immune responses in preclinical studies, vaccine development, and basic immunological research.

Peptide-Based Assay Development: The defined structure and immunogenic properties of NY-ESO-1 (157-165) facilitate its use as a standard reagent in the development and validation of peptide-MHC binding assays, tetramer staining reagents, and other peptide-based detection platforms. Such assays are foundational for dissecting antigen-specific immune responses, evaluating T cell receptor (TCR) affinity, and screening for immune-reactive clones. The peptide's reliability and specificity support reproducible assay performance across research laboratories.

Functional T Cell Studies: In vitro stimulation of T cells with NY-ESO-1 (157-165) enables detailed investigation of cytotoxic T lymphocyte activation, proliferation, and effector function. Researchers utilize it to evaluate cytokine production, cytolytic activity, and the molecular pathways underlying T cell-mediated immune responses. These studies provide critical insights into mechanisms of immune recognition, tolerance, and potential immune escape in the context of cancer and antigen-specific immunity.

Peptide Synthesis and Modification Research: NY-ESO-1 (157-165) serves as a model substrate for studies in peptide synthesis, modification, and structure-activity relationship analysis. Its sequence is frequently employed to optimize synthetic protocols, assess the impact of amino acid substitutions, or develop novel peptide conjugates for research use. Such work advances the broader field of peptide chemistry and supports the development of innovative tools and reagents for immunological and biochemical research.

Through these diverse yet interconnected applications, NY-ESO-1 (157-165) underpins a wide range of investigations in antigen-specific immunity, assay development, and peptide biochemistry, establishing its value as a critical tool for advancing immunological research and peptide science.

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