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Articles for label Kodet Ondřej are displayed.. Show all articles
Mechanisms of resistance in malignant melanoma treated by targeted therapy
02/2020 MUDr. Ondřej Kodet, Ph.D.
The emergence of tumor resistance to targeted therapy represents a significant public health problem. Overcoming these mechanisms would lead to a prolonged effect of this form of treatment, which excels at a significantly higher percentage of therapeutic responses than immunotherapy. The key to the development of new drugs that potentiate the effect of BRAF and MEK inhibitors is a detailed mapping of resistance mechanisms. This work points to some mechanisms of epigenetic, genetic and influence of tumor microenvironment. It also points to the influence of the immune system, which offers one way to potentiate the effect of targeted therapy.
ENTIRE ARTICLE
The emergence of tumor resistance to targeted therapy represents a significant public health problem. Overcoming these mechanisms would lead to a prolonged effect of this form of treatment, which excels at a significantly higher percentage of therapeutic responses than immunotherapy. The key to the development of new drugs that potentiate the effect of BRAF and MEK inhibitors is a detailed mapping of resistance mechanisms. This work points to some mechanisms of epigenetic, genetic and influence of tumor microenvironment. It also points to the influence of the immune system, which offers one way to potentiate the effect of targeted therapy.
Complex treatment of melanoma
02/2019 MUDr. Ondřej Kodet, Ph.D., MUDr. Ivana Krajsová, MBA
Melanoma is probably the most malignant skin cancer. Its incidence has increased significantly five times for the past 40 years, although mortality has been rather stationary in recent years. Complex treatment of melanoma is radical surgery, adjuvant therapy, and therapy of metastatic melanoma. The basis of therapy remains a radical surgery with a sufficient resection margin and histological examination of Breslow and, possibly examination of sentinel lymph node. In adjuvant therapy, checkpoint inhibitors are being used more recently, but currently only interferon alpha is approved. Therapy of metastatic melanoma has made great progress, and now it represents by BRAF and MEK inhibitors as targeted therapy, and immunooncology therapy using a checkpoint inhibitor, especially anti-PD-1. The newly introduced combined treatment options, immunotherapy, and combination with target therapy, are particularly prone to possible higher toxicity. More recently, oncolytic viruses have been used in combination with checkpoint inhibitors. New approaches to complex melanoma therapy have brought major advances that have significantly affected the prognosis of patients with melanoma.
ENTIRE ARTICLE
Melanoma is probably the most malignant skin cancer. Its incidence has increased significantly five times for the past 40 years, although mortality has been rather stationary in recent years. Complex treatment of melanoma is radical surgery, adjuvant therapy, and therapy of metastatic melanoma. The basis of therapy remains a radical surgery with a sufficient resection margin and histological examination of Breslow and, possibly examination of sentinel lymph node. In adjuvant therapy, checkpoint inhibitors are being used more recently, but currently only interferon alpha is approved. Therapy of metastatic melanoma has made great progress, and now it represents by BRAF and MEK inhibitors as targeted therapy, and immunooncology therapy using a checkpoint inhibitor, especially anti-PD-1. The newly introduced combined treatment options, immunotherapy, and combination with target therapy, are particularly prone to possible higher toxicity. More recently, oncolytic viruses have been used in combination with checkpoint inhibitors. New approaches to complex melanoma therapy have brought major advances that have significantly affected the prognosis of patients with melanoma.
Immunotherapeutic options for treatment of malignant melanoma
Supplementum 01/2019 Imunoterapie
MUDr. Ondřej Kodet, Ph.D.
Melanoma belongs to significantly immunogenic tumors, allowing for immunological approaches. Melanoma immunotherapy is possibly used in adjuvant administration as well as in metastatic disease. Interferon alpha is used for adjuvant treatment without a significant effect in long-term follow-up. More recently, checkpoint inhibitors (anti-CTLA4, PD1/PD-L1) are used in clinical trials also for adjuvant treatment, which are already standard in metastatic disease. The work discusses the most recent clinical trials and points to the possibilities of combined therapy with targeted therapy. New approaches and future directions for immunotherapy of melanoma are also discussed.
ENTIRE ARTICLE
MUDr. Ondřej Kodet, Ph.D.
Melanoma belongs to significantly immunogenic tumors, allowing for immunological approaches. Melanoma immunotherapy is possibly used in adjuvant administration as well as in metastatic disease. Interferon alpha is used for adjuvant treatment without a significant effect in long-term follow-up. More recently, checkpoint inhibitors (anti-CTLA4, PD1/PD-L1) are used in clinical trials also for adjuvant treatment, which are already standard in metastatic disease. The work discusses the most recent clinical trials and points to the possibilities of combined therapy with targeted therapy. New approaches and future directions for immunotherapy of melanoma are also discussed.
Advances in the treatment of metastatic melanoma
01/2018 MUDr. Ondřej Kodet, Ph.D., MUDr. Ivana Krajsová
Advances in the treatment of metastatic melanoma significantly affected the prognosis of patients with metastatic disease. Currently therapy is based on two basic therapeutic principles, namely immunotherapy with monoclonal antibodies anti-CTLA-4 and anti-PD-1 and targeted oncology therapy with BRAF inhibitors alone or in combination with MEK inhibitors. The knowledge of these therapeutic modalities leads to combination treatment, which is subject of a number of clinical trials. The work provides an overview of key contemporary knowledge and outline new options in the treatment of metastatic melanoma.
ENTIRE ARTICLE
Advances in the treatment of metastatic melanoma significantly affected the prognosis of patients with metastatic disease. Currently therapy is based on two basic therapeutic principles, namely immunotherapy with monoclonal antibodies anti-CTLA-4 and anti-PD-1 and targeted oncology therapy with BRAF inhibitors alone or in combination with MEK inhibitors. The knowledge of these therapeutic modalities leads to combination treatment, which is subject of a number of clinical trials. The work provides an overview of key contemporary knowledge and outline new options in the treatment of metastatic melanoma.