Clinical Oncology

[PI3K–AKT–mTOR pathway as a therapeutic target]

KOPPER László

DECEMBER 10, 2018

Clinical Oncology - 2018;5(04)

[The PI3K-AKT-mTOR is one of the most busy signalling pathway, accepting and sending the message to the effector compartment. The pathway is very complex with activators (see the name), and inhibitors, as PTEN. Depending of the cell type this pathway participates in almost all functions of a given cell. The members of the pathway may have genetic failures, as a consequence, the risk for the development of different diseases, including cancer is high. Therefore it is logical to produce drugs to inhibit the dysregulated function. Unfortunately, despite the promising preclinical effectivity, so far only 4 drugs can be used to treat cancer patients. There are some hypothesis for the in effectivity, e.g. no useful marker for patient selection, high toxicity, false drivers for targeting. What is sure, combination therapy is much better than monotherapy]

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Further articles in this publication

Clinical Oncology

[Foreword]

A szerkesztők

Clinical Oncology

[Experiences – ESMO 2018]

TOKODI Zsófi a, SZÖLLŐSI Regő

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[Treatment of head and neck cancer]

KATONA Csilla, LANDHERR László

[Head and neck cancers cause worldwide a signifi cant problem in health care systems. Despite great advances in therapeutic modalities its prognosis has not changed in the past few decades. It is mainly caused by classical risk factors, like alcohol consumption and smoking, but in a signifi cant number of oropharyngeal cancers HPV infection plays a major role, which is associated with a new patient group characterized by a much better prognosis and therapeutic response. In the diagnostic phase staging examinations (CT scan, MRI, FDG-PET) are also involved which are necessary to multidisciplinary decision making. It can be largely infl uenced by the patient’s preference. The therapy is based on multimodality approach; surgery, radiotherapy, chemoirradiation, chemotherapy and the combination of these are used in early or locally advanced tumours. Targeted agents like EGFR inhibitors are partly used in the recurrent/metastatic setting or in combination with radiotherapy. Immun checkpoint inhibitors are new therapeutic options for pretreated, recurrent/metastatic patients and their role is under investigation in earlier therapeutic lines. Several clinical trials aim treatment desintensifi cation strategies in HPV positive tumours. Molecular genetic tests try to defi ne subgroups of patients to plan individualized treatment. Regarding the signifi cant functional and aesthetic damage of both disease and treatment, supportive care and rehabilitation are of great importance.]

Clinical Oncology

[Advancing therapies in metastatic castration-resistant prostate cancer]

GIULIA Baciarello, MARCO Gicci, KARIM Fizazi

[Introduction: Prostate cancer is the second most common cause of cancer world wide and is the most frequently detected cancer in the European Union in men over 50 years of age. Androgen deprivation therapy remains the corner stone of treatment for recurrent or metastatic disease. Unfortunately, nearly all patients will develop resistance to androgen blockade leading to castration-resistant prostate cancer (CRPC). Over the last 10 years, new treatment shaved ramatically improved overall survival of men with mCRPC. Current therapies are basedon AR-axis inhibitors and taxane-based chemotherapies, aswell as radiopharmaceuticals and Sipuleucel T. Areas covered: The authors provide a review of the current fi eld of systemic therapy in metastatic CRPC. This is followed by an in-depth analysis of recent developments in treatment, and the biological rationale behind these therapies. Expert opinion: Since several trials with docetaxel or novel hormonal agents showed improvement in overall survival in metastatic castration-sensitive prostate cancer, aswell as in non-metastatic castrationresistant patients, it is expected that a growing subgroup of patients will be expose dearlierto chemotherapy and to AR targeted agents. It becomes then fundamental to fi nd novel strategies to over come drug resistance and further improve survival.]

Clinical Oncology

[Medical use of marihuana especially in oncology]

VÉGH Éva

[The medical use of marijuana has gained a considerable attention among wide range of cancer patients lately in Hungary. Consequently, oncologist sare facing questions related to cannabinoids more and more in their clinical practice. This article aims to clarify some basic concepts and to give a brief introduction on the current international and national legislation on their accessibility. Numerous publications have dealt with the application of marijuana in various indications. Among the tumour related indications, the concerned studies mainly refer to chemotherapy induced nausea and vomiting, chronic pain, sleep disorders, anorexia and cachexia. The article also to uches upon on knowledge connected to the causal treatment of malignant tumours, which are currently limited to glioblastoma. Information on the carcinogenic potential of cannabis and information on the popularity and attitudes of American oncologists can be found in this article. This paper gives a literature review in the above mentioned themes.]

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