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Clinical Oncology - 2017;4(02)
Content
Clinical Oncology
MAY 10, 2017
Clinical Oncology
MAY 10, 2017
Clinical Oncology
MAY 10, 2017
[Geriatric oncology]
[Geriatric oncology has an increasing role since in several types of cancer the median age at diagnosis is above 60 years of age. The treatment of elderly patients are frequently set back by prejudice, stereotypes and lack of information. All these lead to the fact that even in well-developed countries elderly cancer patients often do not receive the necessary treatments. This is even more true in poor-countries, where the fi nancial defi cit accumulated in health care is often attempted to be reduced by the treatment of elderly. If a paediatric oncology patient does not get suffi cient cancer treatment there is a fi erce protest, but everybody is silent if this occurs in the case of an 80 years old patient. For this unacceptable situation both authorities (fi nancing) and professional bodies (treatment, education) are responsible. Clinical data show that elderly cancer patients get the same benefi t of active oncology treatment, as younger ones. Age on its own does not contraindicate any cancer treatment. The aim of this review is to prove by data, that elderly cancer patients should also get active oncology treatment. The questions of assessment include frailty, the relationship of cancer development and ageing, and other problems related to the oncology treatment of elderly patients are also discussed.]
Clinical Oncology
MAY 10, 2017
[Adjuvant treatment of breast cancer]
[Choice of optimal adjuvant treatment has been based on present debates, doubts and commit offence against processing or existing evidences. Clinical research has been resulted changes and renewal of practice decisions continuously. 3rd Breast Cancer Consensus Conference held on Kecskemét last year corresponded by Hungarian experts of the fi eld has given up to date and well-defi ned guideline. Present paper try to give a summary of adjuvant treatment courses for early breast cancer in consideration of last results of research since then.]
Clinical Oncology
MAY 10, 2017
[Combination of radiotherapy and immunotherapy]
[Increasing experimental and clinical evidences demonstrated the synergic effect between the rapidly implemented immunotherapy and advanced forms of focal radiotherapy, not only on the elimination of the irradiated lesion, but also on the enhancement the immune-mediated systemic anti-tumoral activity. It is essential for gaining the most benefi t from the combination of the two modalities to select the appropriate patients, to defi ne the irradiation parameters, such as radiation quality (ie. particle) dosage, (total dose, fraction number) size of the target volume, the use of other supportive and anti-tumor drugs. In this review, we provide an update for the daily oncological practice on the data accumulated up to now on the molecular basis and patomechanism of enhancing radio-immune effect and clinical results, and highlight the most important parameters, which may increase the abscopal effect of ionizing radiation, thereby increasing the effectiveness of immunotherapy. However, development of clinical guidelines for benefi cial integration of immunotherapy and radiotherapy could be expected after evaluation the result of currently ongoing numerous (> 100) clinical trials. If the preclinical results will be confi rmed clinically, it could lead to paradigm shift in the use of ionizing radiation.]
Clinical Oncology
MAY 10, 2017
[Why don’t immune checkpoint inhibitors work in colorectal cancer?]
[In recent years, immune checkpoint inhibitors have been shown to be effective in treating manifold types of cancer but less robust in colorectal cancer (CRC). While, the subgroup of CRC with microsatellite instability (MSI; also termed as mismatch repair defi cient) showed a moderate response to Pembrolizumab in a single arm phase II clinical trial, microsatellite stable (MSS) cancers were unresponsive. Possible mechanisms that affect immune response in colorectal cancer will be reviewed in this article. We will also propose that histone deacetylase (HDAC) inhibition may reverse the immune editing commonly seen in advanced CRC and render them sensitive to immune checkpoint blockade.]
Clinical Oncology
MAY 10, 2017
[Signaling pathways in cancer stem cells (Notch, Hedgehog, Wnt)]
[OThe key regulators in the embryonic life, and later in the differentiation of tissues and organs are the evolutionary reserved signalling pathways, as Notch, Hedgehog and Wnt. Mutations of these pathways have been identifi ed in many tumor types, increasing the risk to the appearance of cancer stem cells (CSC), with very similar geno- and phenotype as normal stem cells have. Such CSCs with stemness functions can be developed not only from normal stem cells, but also from progenitor and differentiated cells. The main characteristics of CSC are the self maintenance, slow growth rate, very effective DNA-repair system, etc. All of these can contribute to the resistance. Further problems are the low number of CSC in the whole tumor mass, which makes rather diffi cult to achieve the effective drug concentration in CSC. The mentioned ancient pathways interact with many other pathways to form a network, which can infl uence the strategy of therapy. No doubt, that these pathways are promising targets, however, till now the clinical effectiveness is very low due to some reasons mentioned above. Nevertheless, some drugs are already in clinical use, either as monotherapy or part of the combinations. Little is known about the relationship between the pathways and the microenvironment, which has an outstanding role in the cellular activities, sometimes resulting opposite output. It is a great challenge to design effective drugs against CSC, similarly to fi nd reliable predictive biomarkers, which unfortunately still missing, since a reasonable drug-marker interactions would speed up the personalized treatment.]
Clinical Oncology
MAY 10, 2017
[Pneumonitis - severe adverse effect of therapy]
[The interstitial lung diseases (ILD) are a heterogeneous group of disorders that are classifi ed together because of similar clinical, radiographic or pathologic manifestation. The diffuse interstitial lung diseases are divided into those that are associated with known causes and that are idiopathic. The treatment choices and prognosis vary among the different causes and types of ILD, so the early and correct diagnosis is important. In oncology ILD could be a rather severe adverse effect of treatment with radiationor chemotherapy.]
Clinical Oncology
MAY 10, 2017
[Paleo-oncology - messages from the past]
[Nowadays, cancer is one of the greatest challenges facing mankind. However, there is still no consensus among researchers regarding the antiquity of cancer. Written sources and paleo-oncological studies may help to answer this question. The aim of this study is to present data on the history of cancer based on historical sources, literature data and own research fi ndings. Early historical sources indicate that cancer was already known in antiquity. Paleopathological studies of animal and human fossils show that malignant bone tumors were present in ancient times, although the frequency of the disease was seemingly very low. The increasing number of unearthed fossils and the use of modern diagnostic tools have led to a rise of the number of diagnosed cancer cases. Our comprehensive paleo-oncological study, focusing on the occurrence and frequency change of malignant tumors in historic populations of Hungary was based on the analysis of skeletal remains belonging to 11,000 individuals dated from the Early Neolithic to the late medieval period. During the analysis macromorphological, modern imaging and histological methods were applied. As a result of the extensive investigations osteological evidences of malignant bone tumors were identifi ed in 39 cases. Neoplastic bone diseases were present in all studied historical periods and there were no differences in their occurrence and frequency between the different archaeological periods.]
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