American Association for Cancer Research
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Supplementary Figure 5 from Adipose-Derived Mesenchymal Stem Cells as Stable Source of Tumor Necrosis Factor–Related Apoptosis-Inducing Ligand Delivery for Cancer Therapy

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posted on 2023-03-30, 20:13 authored by Giulia Grisendi, Rita Bussolari, Luigi Cafarelli, Istvan Petak, Valeria Rasini, Elena Veronesi, Giorgio De Santis, Carlotta Spano, Mara Tagliazzucchi, Helga Barti-Juhasz, Laura Scarabelli, Franco Bambi, Antonio Frassoldati, Giulio Rossi, Christian Casali, Uliano Morandi, Edwin M. Horwitz, Paolo Paolucci, PierFranco Conte, Massimo Dominici
Supplementary Figure 5 from Adipose-Derived Mesenchymal Stem Cells as Stable Source of Tumor Necrosis Factor–Related Apoptosis-Inducing Ligand Delivery for Cancer Therapy

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ARTICLE ABSTRACT

Adipose-derived mesenchymal stromal/stem cells (AD-MSC) may offer efficient tools for cell-based gene therapy approaches. In this study, we evaluated whether AD-MSC could deliver proapoptotic molecules for cancer treatment. Human AD-MSCs were isolated and transduced with a retroviral vector encoding full-length human tumor necrosis factor–related apoptosis-inducing ligand (TRAIL), a proapoptotic ligand that induces apoptosis in a variety of human cancers but not normal tissues. Although several studies have documented the antitumor activity of recombinant human TRAIL, its use in vivo is limited by a short half-life in plasma due to a rapid clearance by the kidney. We found that these limitations can be overcome using stably transduced AD-MSC, which could serve as a constant source of TRAIL production. AD-MSC armed with TRAIL targeted a variety of tumor cell lines in vitro, including human cervical carcinoma, pancreatic cancer, colon cancer, and, in combination with bortezomib, TRAIL-resistant breast cancer cells. Killing activity was associated with activation of caspase-8 as expected. When injected i.v. or s.c. into mice, AD-MSC armed with TRAIL localized into tumors and mediated apoptosis without significant apparent toxicities to normal tissues. Collectively, our results provide preclinical support for a model of TRAIL-based cancer therapy relying on the use of adipose-derived mesenchymal progenitors as cellular vectors. Cancer Res; 70(9); 3718–29. ©2010 AACR.