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  • Title: Primary refractory and early-relapsed Hodgkin's lymphoma: strategies for therapeutic targeting based on the tumour microenvironment.
    Author: Carbone A, Gloghini A, Castagna L, Santoro A, Carlo-Stella C.
    Journal: J Pathol; 2015 Sep; 237(1):4-13. PubMed ID: 25953622.
    Abstract:
    Classical Hodgkin's lymphoma (cHL), a distinct disease entity with characteristic clinical and pathological features, accounts for approximately 10% of all malignant lymphomas. cHL can be considered a prototype model for how the tumour microenvironment influences cancer pathogenesis. Cellular components of the cHL microenvironment express molecules involved in cancer cell growth and survival, such as CD30L or CD40L. Moreover, several signal transduction pathways that are critical for the proliferation and survival of neoplastic Hodgkin Reed-Sternberg (HRS) cells, including NF-κB, JAK-STAT, PI3K-AkT and ERK, are deregulated in cHL. Although most patients can be cured with modern treatment strategies, approximately a quarter experience either primary or secondary chemorefractoriness or disease relapse, thus requiring novel treatments. Preclinical and clinical evidence has elucidated a complex crosstalk between malignant HRS cells and the reactive cells of the microenvironment, which suggests that novel therapeutic approaches capable of targeting HRS cells along with reactive cells might overcome chemorefractoriness. In the near future, these novel therapies will also be tested in chemosensitive patients, to reduce the long-term toxicity of chemo-radiotherapy.
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