Publications by authors named "Elyssa N Denault"

Article Synopsis
  • * The LINE-1 ORF1p protein is overexpressed in various cancers and has negligible expression in normal tissues, indicating its potential as a highly specific blood-based cancer biomarker.
  • * Advanced digital immunoassays can detect low levels of ORF1p in plasma, showing promise for early detection of ovarian cancer and monitoring treatment responses in gastroesophageal cancers, suggesting it could be a valuable tool for cancer diagnosis and prognosis.
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The assessment of plasma for circulating tumor DNA (ctDNA) via liquid biopsy has revolutionized our understanding of breast cancer pathogenesis and evolution. Historically, genotyping evaluation of breast cancer required invasive tissue biopsy, limiting potential for serial evaluation over the treatment course of advanced breast cancer, and not allowing for assessment for residual disease in early breast cancer after resection. However, technological advances over the years have led to an increase in the clinical use of ctDNA as a liquid biopsy for genotype-matched therapy selection and monitoring for patients undergoing treatment for advanced breast cancer.

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Purpose: About 50% of breast cancers are defined as HER2-low and may benefit from HER2-directed antibody-drug conjugates. While tissue sequencing has evaluated potential differences in genomic profiles for patients with HER2-low breast cancer, genetic alterations in circulating tumor DNA (ctDNA) have not been well described.

Experimental Design: We retrospectively analyzed 749 patients with metastatic breast cancer (MBC) and ctDNA evaluation by Guardant360 from three academic medical centers.

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Article Synopsis
  • * The Long INterspersed Element-1 (LINE-1) open reading frame 1 protein (ORF1p) is found to be overexpressed in various cancers but not in normal tissues, highlighting its potential as a specific cancer biomarker.
  • * Researchers have developed highly sensitive digital immunoassays to detect ORF1p in blood samples, showing promise for early detection of ovarian cancer and improved monitoring of gastric and esophageal cancers, positioning it as a valuable multi-cancer biomarker.
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Background: Limited data exist to characterise molecular differences in circulating tumour DNA (ctDNA) for patients with invasive lobular carcinoma (ILC). We analysed metastatic breast cancer patients with ctDNA testing to assess genomic differences among patients with ILC, invasive ductal carcinoma (IDC), and mixed histology.

Methods: We retrospectively analysed 980 clinically annotated patients (121 ILC, 792 IDC, and 67 mixed histology) from three academic centers with ctDNA evaluation by Guardant360™.

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Purpose: The immunogenicity and reactogenicity of SARS-CoV-2 vaccines in patients with cancer are poorly understood.

Methods: We performed a prospective cohort study of adults with solid-organ or hematologic cancers to evaluate anti-SARS-CoV-2 immunoglobulin A/M/G spike antibodies, neutralization, and reactogenicity ≥ 7 days following two doses of mRNA-1273, BNT162b2, or one dose of Ad26.COV2.

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