Introduction: Talimogene laherparepvec (T-VEC; IMLYGIC, Amgen Inc.) is an oncolytic immunotherapy approved in Europe for the treatment of unresectable metastatic melanoma (stage IIIB-IVM1a). This study characterised real-world use of T-VEC in four European countries.
View Article and Find Full Text PDFIntroduction: Talimogene laherparepvec is a first-in-class oncolytic immunotherapy for intratumoral injection with proven efficacy and tolerability in patients with unresectable early metastatic melanoma (stage IIIB-IVM1a) in the pivotal phase III OPTiM study. The objective was to characterize melanoma patients treated with talimogene laherparepvec in routine clinical practice in Germany.
Methods: A retrospective chart review was conducted in unresectable stage IIIB-IVM1a melanoma patients.
Background: Uveal melanoma (UM) is an ocular malignancy with high potential for metastatic spread. In contrast to cutaneous melanoma, immunotherapy has not yet shown convincing efficacy in patients with UM. Combined immune checkpoint blockade with checkpoint programmed cell death-1 (PD-1) and checkpoint cytotoxic T-lymphocyte antigen-4 (CTLA-4) inhibition has not been systematically assessed for UM to date.
View Article and Find Full Text PDFDiscovery and translational research has led to the identification of a series of “cancer drivers”—genes that, when mutated or otherwise misregulated, can drive malignancy. An increasing number of drugs that directly target such drivers have demonstrated activity in clinical trials and are shaping a new landscape for molecularly targeted cancer therapies. Such therapies rely on molecular and genetic diagnostic tests to detect the presence of a biomarker that predicts response.
View Article and Find Full Text PDFThe transcription factor NF-kappaB is constitutively active in pancreatic adenocarcinoma. Here we explore the contribution of NF-kappaB to the malignant phenotype of pancreatic cancer cells in addition to its anti-apoptotic role. Block of NF-kappaB signalling by non-destructible IkappaBalpha rendered cells resistant to TGF-beta-induced epithelial-mesenchymal transition (EMT).
View Article and Find Full Text PDFIncreasing evidence suggests that processes termed epithelial-mesenchymal transitions (EMTs) play a key role in therapeutic resistance, tumor recurrence, and metastatic progression. NF-κB signaling has been previously identified as an important pathway in the regulation of EMT in a mouse model of tumor progression. However, it remains unclear whether there is a broad requirement for this pathway to govern EMT and what the relative contribution of IKK family members acting as upstream NF-κB activators is toward promoting EMT and metastasis.
View Article and Find Full Text PDFCutaneous T-cell lymphoma (CTCL) is a heterogeneous group of non-Hodgkin's lymphomas that manifest primarily in the skin. Mycosis fungoides is recognized as the most common type of CTCL. Patients with early-stage CTCL usually have a benign and chronic disease course.
View Article and Find Full Text PDFBackground: The importance of changes in the supporting tumor stroma for cancer initiation and progression is well established. The characteristics of an activated tumor stroma, however, are not completely understood. In an effort to better characterize the desmoplastic response to human skin tumors, we evaluated the expression pattern of three stromal cell markers, fibroblast-activation protein (FAP), endoglyx-1, and endosialin, in a series of melanocytic and epithelial skin tumors.
View Article and Find Full Text PDFCurr Opin Cell Biol
October 2005
Epithelial-mesenchymal transitions (EMTs) occur as key steps during embryonic morphogenesis, and are now implicated in the progression of primary tumors towards metastases. Recent advances have fostered a more detailed understanding of molecular mechanisms and networks governing EMT in tumor progression. Besides TGFbeta and RTK/Ras signaling, autocrine factors and Wnt-, Notch-, Hedgehog- and NF-kappaB-dependent pathways were found to contribute to EMT.
View Article and Find Full Text PDFActivation of the transcription factor NF-kappaB occurs in many human tumors, and studies have shown that NF-kappaB can promote cell proliferation and oncogenesis, possibly by protecting cells from apoptosis. Little is known, however, about whether NF-kappaB is involved in tumor progression including epithelial-mesenchymal transition (EMT), a central process governing both morphogenesis and carcinoma progression in multicellular organisms. In a combined in vitro/in vivo model of mammary carcinogenesis, NF-kappaB was essential both for the induction and maintenance of EMT and for in vivo metastasis.
View Article and Find Full Text PDFThe transcription factor NF-kappaB is activated in a range of human cancers and is thought to promote tumorigenesis, mainly due to its ability to protect transformed cells from apoptosis. To investigate the role of NF-kappaB in epithelial plasticity and metastasis, we utilized a well-characterized in vitro/in vivo model of mammary carcinogenesis that depends on the collaboration of the Ha-Ras oncoprotein and TGF-beta. We show here that the IKK-2/IkappaBalpha/NF-kappaB pathway is required for the induction and maintenance of epithelial-mesenchymal transition (EMT).
View Article and Find Full Text PDFGrowth and metastasis of solid neoplasms require the recruitment of a supporting tumor stroma. A highly consistent trait of tumor stromal fibroblasts in most epithelial cancers is the induction of fibroblast activation protein (FAP), a member of the serine protease family. Recently it was demonstrated that FAP has both dipeptidyl peptidase and collagenolytic activity capable of degrading gelatin and type I collagen.
View Article and Find Full Text PDFTumor necrosis factor (TNF)-alpha-induced phosphorylation of the IkappaB proteins by the IkappaB kinase (IKK) complex containing IKK-2 and subsequent degradation of the IkappaB proteins are prerequisites for NF-kappaB activation, resulting in the stimulation of a variety of pro-inflammatory target genes. The C-C chemokine eotaxin-1 is a potent chemoattractant for eosinophils and Th2 lymphocytes, may play an important role in the pathogenesis of atopic dermatitis, and acts via binding to its receptor CCR3. To investigate the role of NF-kappaB signaling in the regulation of these genes, we stably expressed a transdominant mutant of IkappaBalpha and a constitutively active mutant of IKK-2 in mouse NIH3T3 fibroblasts.
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