Ashani Weeraratna
Melanoma, aging, and microenvironments
E.V. McCollum Chair of Biochemistry and Molecular Biology
Bloomberg Distinguished Professor
Biochemistry and Molecular Biology Department, School of Public Health
Oncology Department, School of Medicine
Research Overview
My laboratory focuses on trying to unravel the molecular mechanisms that lead to metastatic progression and therapy resistance. We are investigating the link between changes in the tumor microenvironment and melanoma progression, and further, how these changes may affect response to therapy. More recently, we have become very interested in how the aging microenvironment guides changes leading to increased metastasis and therapy resistance, as well as cell-autonomous aspects of therapy resistance, and have demonstrated that normal age-related changes in the microenvironment can contribute to multiple aspects of melanomagenesis and therapy resistance.
Additional Titles
Associate Director of Laboratory Research, Sidney Kimmel Comprehensive Cancer Center
Selected Publications
- Fane ME, Chhabra Y, Alicea GM, Maranto DA, Douglass SM, Webster MR, Rebecca VW, Marino GE, Almeida F, Ecker BL, Zabransky DJ, Hüser L, Beer T, Tang HY, Kossenkov A, Herlyn M, Speicher DW, Xu W, Xu X, Jaffee EM, Aguirre-Ghiso JA, Weeraratna AT. Stromal changes in the aged lung induce an emergence from melanoma dormancy. Nature, 2022.
- Douglass SM, Fane ME, Sanseviero E, Ecker BL, Kugel CH 3rd, Behera R, Kumar V, Tcyganov EN, Yin X, Liu Q, Chhabra Y, Alicea GM, Kuruvilla R, Gabrilovich DI, Weeraratna AT. Myeloid-Derived Suppressor Cells Are a Major Source of Wnt5A in the Melanoma Microenvironment and Depend on Wnt5A for Full Suppressive Activity. Cancer Research, 2021.
- Fane ME, Ecker BL, Kaur A, Marino GE, Alicea GM, Douglass SM, Chhabra Y, Webster MR, Marshall A, Colling R, Espinosa O, Coupe N, Maroo N, Campo L, Middleton MR, Corrie P, Xu X, Karakousis GC, Weeraratna AT. sFRP2 Supersedes VEGF as an Age-related Driver of Angiogenesis in Melanoma, Affecting Response to Anti-VEGF Therapy in Older Patients. Clinical Cancer Research, 2020.
- Alicea GM, Rebecca VW, Goldman AR, Fane ME, Douglass SM, Behera R, Webster MR, Kugel CH, Ecker BL, Caino MC, Kossenkov AV, Tang HY, Frederick DT, Flaherty KT, Xu X, Liu Q, Gabrilovich DI, Herlyn M, Blair IA, Schug ZT, Speicher DW, Weeraratna AT. Changes in Aged Fibroblast Lipid Metabolism Induce Age-dependent Melanoma Cell Resistance to Targeted Therapy Via the Fatty Acid Transporter FATP2. Cancer Discovery, 2020.
- Fane M, Weeraratna AT. How the ageing microenvironment influences tumour progression. Nature Reviews Cancer, 2020.