David A. Barbie, MD, on Mesothelioma: Activating the STING Pathway May Promote Antitumor Immunity
AACR Annual Meeting 2022
David A. Barbie, MD, of Dana-Farber Cancer Institute, discusses his laboratory’s studies, showing that malignant pleural mesothelioma, an inflamed cancer type with marginal response to immune checkpoint blockade, demonstrated high tumor cell STING expression and response to STING agonists in combination with natural killer cell therapies ex vivo. STING is the tumor cell stimulator of interferon genes (Abstract 4168).
The ASCO Post Staff
Iván Márquez-Rodas, MD, PhD, of Spain’s Hospital General Universitario Gregorio Marañón, discusses final results of the phase II SPOTLIGHT203 study of systemic pembrolizumab in combination with intratumoral BO-112 for patients with advanced melanoma refractory to anti–PD-1–based therapy. The regimen achieved an overall response rate of 25% and a disease control rate of 65% (Abstract CT014).
The ASCO Post Staff
Nickolas Papadopoulos, PhD, of the Sidney Kimmel Comprehensive Cancer Center, discusses early detection as the key to reducing cancer mortality and the lack of tests for many malignancies. Liquid biopsies have the potential to screen for various tumor types, albeit with varying levels of sensitivity. Dr. Papadopoulos discusses his research on such blood tests, following patients prospectively to find the best combination of genetic and epigenetic biomarkers to increase sensitivity (Abstract PL02).
The ASCO Post Staff
Matthew L. Meyerson, MD, PhD, of the Dana-Farber Cancer Institute, discusses study findings that suggest the variation in frequency of EGFR and KRAS mutations in lung cancer may be associated with genetic ancestry in patients from Latin America. The results indicate it may be possible to identify germline alleles underpinning this link. Finding a germline locus or loci may impact the development of lung cancers with these mutations and may improve lung cancer prevention and screening for populations of Latin American origin, as well as others.
The ASCO Post Staff
Maria Elena Martinez, PhD, MPH, of the University of California, San Diego Moores Cancer Center, provides an overview of the key components of the Accelerating Colorectal Cancer Screening and Follow-up through Implementation Science program, challenges posed by the COVID-19 pandemic, and opportunities for overcoming these challenges. Although screening and follow-up may reduce the incidence of and mortality from colorectal cancer, these disparities persist in medically underserved populations (Abstract SY30).
The ASCO Post Staff
Marcia R. Cruz-Correa, MD, PhD, of the University of Puerto Rico Comprehensive Cancer Center, discusses a way to possibly transform cancer outcomes by teaming up basic scientists, clinical researchers, and community advocates to work together, decode the complexity of cancer, and find points at which to intervene in the development of tumor cells. One strong focus is on communities disproportionately affected based on their genomic ancestry, geographic location, and ethnicity (Abstract PL06).
