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In recent years, the incidence rate of malignant tumors has been ever increased. As the persistent advancement of various therapeutic techniques, the therapeutic plans of cancer have been improved. Radiotherapy takes effect mainly by killing the topical tumor cells by radiation. During radiotherapy, the anti-tumor immune response can be induced or enhanced. Appropriate radiotherapy dose and segmentation model combined with certain immunotherapy plays a more and more significant role in the treatment of tumors. In this article, the underlying mechanisms of radiation-enhanced anti-tumor immune response and the current status and research prospects of radiotherapy combined with immunotherapy were reviewed.
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NuclearfactorκB(NF-κB)isanimportanttranscriptionfactorinmammaliancells.Asa multifunctional factor,NF-κB is involved in a variety of physiological and pathological processes such as immu-nity and inflammation .At the molecular and cellular level,NF-κB regulates initiation and progression of neo-plasms.NF-κB also plays an important role in cell proliferation and apoptosis of neoplasms.Radiotherapy is one of the most important methods in tumor treatment .In recent years,a number of studies discovered that NF-κB is critical in the development of resistance of tumor cells to radiotherapy,which results in poor progno-sis.We can use NF-κB as a biomarker in predicting outcomes of anticancer treatment or as prognostic indicators in patients who are with tumors.So we can find different potential inhibitors aimed at NF-κB and its signal pathway in order to improve the efficacy of radiotherapy.In the present study,the correlation of NF-κB mole-cules with radiotherapy of neoplasms is reviewed.
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The standard non-surgery approach for locally advanced non-small cell lung cancer (NSCLC) is concurrent chemoradiotherapy.Common chemotherapy regimens include EP,NP,DC and PC.New chemotherapy drugs combination and targeted therapy are still under study.The tolerances of elderly patients are declining for concurrent chemoradiotherapy,but it is not the absolute contraindication.The tolerance for hyperfraction and high dose radiotherapy is well,however,the effectiveness and long-term toxicity need to be further studied and evaluated.
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Objective To investigate the main risk factors and protective factors of malignant tumors in Taian City. Methods Esophagus, lung, stomach, liver Malignancies in Taian City, 1:1 matched case-control study, application conditions of the relevant factors, logistic regression univariate and multivariate analysis were done. Results For esophageal and gastric cancer, the common risk factors were eating hot, dry,hard, deep fried foods, and also animal food, heavy drinking, family history of cancer, the staple food pancake with esophageal cancer-related. For lung cancer, heavy smokers, living in and around the sources of pollution,may increase the probability of illness, hepatitis B virus infection, chronic liver disease history, unstable emotion, eating and drinking are the major risk factors for liver cancer. Tea on the four kinds of malignant tumors often have a protective effect. Raw garlic, fruits and vegetables, dairy soy foods can prevent esophageal cancer and gastric cancer. Conclusion To promote proper exercise, stop and smoking alcohol drinking,psychological balance, good dietary habits, can effectively prevent the occurrence of malignant tumors.
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p53 Gene and proliferating cell nuclear antigen (PCNA) are both related closely to the ra-diotherapy of non-small cell lung cancer(NSCLC). The life span of NSCLC patients with both p53 and PCNA positive is shorter than that of NSCLC patients with both p53 and PCNA negative. Studying the expression of p53 and PCNA in NSCLC, and their relationship with the radiosensitivity and prognosis of NSCLC can play a positive role in individualized treatment and increasing curative effect.