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    24 December 2014, Volume 41 Issue 12 Previous Issue    Next Issue
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    MicroRNAs and epithelial mesenchymal transition in cancer
    HAN Xue, LI Man
    2014, 41 (12):  881-884.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.001
    Abstract ( 355 )   PDF (744KB) ( 1293 )   Save
    In recent years, a lot of researches have shown microRNA (miRNA) involved in every link of epithelialmesenchymal transition(EMT) regulation process through a variety of signaling pathways in tumor; even the same kind of miRNA  plays significantly different roles in different tumors, inducing great significance to guide clinic.
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    The role of microRNAs in breast cancer stem cells
    MAO Chang-Fei, WU Jian-Zhong, TANG Jin-Hai
    2014, 41 (12):  884-887.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.002
    Abstract ( 350 )   PDF (666KB) ( 1359 )   Save
    The role of microRNAs in breast cancer stem cellsMao Changfei, Wu Jianzhong, Tang Jinhai. Corresponding author:【Abstract】Cancer stem cells are a kind of cancer cell group with the ability of selfrenewal and various diferentiation potentials. Recent studies have implicated that they play a significant role in tumor formation, metastasis, resistance to anticancer therapies and cancer recurrence. Many studies show that microRNAs are involved in the maintenance, growth and behavior of breast cancer stem cells(BCSCs), paving a new way for diagnosis, prognosis and therapy of breast cancer.
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    Research progress of miR-451 in tumor
    南Yang , ZHONG Yue
    2014, 41 (12):  887-890.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.003
    Abstract ( 392 )   PDF (667KB) ( 1189 )   Save
    MicroRNA451(miR451) is significantly lowly expressed in glioma, gastric cancer, colorectal cancer, liver cancer and other tumor tissues. Upregulation of miR451 can significantly inhibit tumor cell proliferation,invasion and metastasis as well as increasing tumor cell apoptosis and improving radiotherapy and chemotherapy sensitivity and other biological effects.
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    Role of zincfinger protein X-linked in the development of neoplasms
    YAN Lei-Lei, PENG Jia-Yuan, WANG Yu
    2014, 41 (12):  890-893.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.004
    Abstract ( 292 )   PDF (671KB) ( 1270 )   Save
    Zincfinger protein Xlinked is a member of zinc finger protein family. Its abnormal expression has been found in a variety of stem cells and malignant tumor cells. Recent studies have shown that it plays an important role in stem cell selfrenewal and cancer cell proliferation, apoptosis and migration.
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    Roles of transforming growth factor-β1 in cancer stem cells
    MA Yu-Lei, LI Hai-Yuan, ZHOU Chuan, ZHOU Feng-Hai, 吕Hai-Di , WANG Shi-Guang
    2014, 41 (12):  893-895.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.005
    Abstract ( 404 )   PDF (663KB) ( 1124 )   Save
    Tumor stem cells are responsible for metastasis and relapse of cancer. Transforming growth factorβ1 (TGFβ1) plays an important role in the proliferation and differentiation of tumor stem cells. In many cancers such as breast carcinoma, hepatocellular carcinoma, pancreatic carcinoma, lung carcinoma, glioma and gallbladder carcinoma, the epithelialmesenchymal transition (EMT) induced by TGFβ1 can inhibit proliferation of cancer cell, enrich tumor stem cells and increase invasive capability and drug resistance of cancer.
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    Roles of transforming growth factor-β1 in cancer stem cells
    MA Yu-Lei, LI Hai-Yuan, ZHOU Chuan, ZHOU Feng-Hai,LV Hai-Di , WANG Shi-Guang
    2014, 41 (12):  893-895.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.005
    Abstract ( 44 )   PDF (663KB) ( 1102 )   Save
    Tumor stem cells are responsible for metastasis and relapse of cancer. Transforming growth factorβ1 (TGFβ1) plays an important role in the proliferation and differentiation of tumor stem cells. In many cancers such as breast carcinoma, hepatocellular carcinoma, pancreatic carcinoma, lung carcinoma, glioma and gallbladder carcinoma, the epithelialmesenchymal transition (EMT) induced by TGFβ1 can inhibit proliferation of cancer cell, enrich tumor stem cells and increase invasive capability and drug resistance of cancer.
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    Self-renewal mechanism of cancer stem cells
    WANG Tong, QI Xiao-Fei, ZHANG Ri
    2014, 41 (12):  896-898.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.006
    Abstract ( 404 )   PDF (657KB) ( 1987 )   Save
    Cancer stem cells comprise a subpopulation with the capacity of selfrenewal,  selfdifferentiation and high tumorigenicity. Cancerogenesis, development, relapse and therapeutic resistance are closely related with these cells. The most important characteristics of these cells are the ability to selfrenew. So insight into the regulating mechanism of selfrenewal in cancer stem cells will be important for the development of novel molecular agents targeted the cancer stem cells.
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    Progression of brain tumor stem cell markers
    WU Bin, XIA Liang
    2014, 41 (12):  899-901.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.007
    Abstract ( 378 )   PDF (658KB) ( 1199 )   Save
    Brain tumor stem cells(BTSCs) play a key role in tumorigenesis and tumor development.There are a group of special markers in the surface of brain tumor stem cells, which can sorts stem cells, precursor cells and cancer stem cells. In recent years, the studies of CD133, Nestin, highmobility group A1, A2B5 have made some breakthroughs.
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    Research advance on vasculogenic mimicry in glioma
    DENG Jun, GUO Yu-Hong, GUO Geng
    2014, 41 (12):  902-905.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.008
    Abstract ( 427 )   PDF (670KB) ( 1346 )   Save
    Vasculogenic mimicry (VM) is a pattern of neoplasm cells, which achieve their blood supplements through deformation and simulating capillary channels. Cumulative studies show that the formation of VM in glioma have a close relation with the glioma stem cells. In addition, some molecules such as microRNA, epithelial cell kinaseA2, vascular endothelial cadherin, transforming growth factorβ, vascular endothelial growth factor receptor2 and galectin1 play important roles in the forming process of vasculogenic mimicry. Recently, it is found that VM is associated with the poor prognosis of patients with glioma and anti angiogenesis drug efficacy. So the research on VM about the discovery, formation mechanism, prognostic impact and the clinical significance will provide an opportunity for diagnosis and therapy of glioma in early stage.
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    Chronic inflammation in the promotion of lung carcinogenesis
    YANG Rui-Xu, DENG Jiong
    2014, 41 (12):  906-909.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.009
    Abstract ( 401 )   PDF (666KB) ( 1548 )   Save
    Chronic inflammation is proved to play an important role in promoting carcinogenesis. Many factors in inflammatory microenvironment, such as inflammatory immune cells, pro-inflammatory cytokines, inflammatory mediators, and aberrantly activated transcription factors of proinflammatory pathway (NF-κB, STAT3), have been found to provide a microenvironment for lung neoplastic processes, and promote the lung carcinogenesis. On the other hand, many antiinflammatory agents have been shown having inhibitory effects on lung tumorigenicity. With further understanding of the molecular links between inflammation and lung tumorigenesis, antiinflammation would provide alternative strategies for prevention and therapy of lung cancer.
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    Research progress of ERCC1 in non-small cell lung cancer based on the platinum drugs
    LIU Zhi-Bao, ZHANG Jing-Hua
    2014, 41 (12):  909-912.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.010
    Abstract ( 293 )   PDF (666KB) ( 1320 )   Save
    Excision repair cross complementing group 1 (ERCC1) gene is an enzyme of the speed limit of DNA repair protein in nucleotide excision repair (NER) pathways.Researches suggest that ERCC1 has been associated with cisplatin resistance in nonsmall cell lung cancer (NSCLC) patients. Thus, ERCC1 gene is a new target in malignant tumor gene therapy research,providing a new approach for the treatment of malignant,especially NSCLC.
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    Application of image-guided adaptive radiation therapy in lung cancer
    FANG Jin-Mei, WANG Fan
    2014, 41 (12):  912-914.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.011
    Abstract ( 440 )   PDF (659KB) ( 1406 )   Save
    Corresponding author: Adaptive radiotherapy (ART) is the product of excellence technology.  It reschedules, registers according to tumor′s size, shape and alteration of relative position with the surrounding tissue during the treatment. Thereby it raises the accuracy of  the conformal radiotherapy. The technology is gradually being chosen by more and more patients. The technology can increase the rate of local control significantly, while reducing the occurrence of radiationrelated adverse reactions.
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    Research of hepatocyte nuclear factor 4α in digestive system tumors
    WANG Juan, HU Zhi-Qian
    2014, 41 (12):  915-918.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.012
    Abstract ( 468 )   PDF (667KB) ( 1184 )   Save
    Hepatocyte nuclear factor 4α is a transcription factor of the nuclear hormone receptor superfamily and plays a very important role in the differentiation and development of the digestive system as well as the polarity regulation, which is considered to be a tumor suppressor gene.It also plays a very important role in digestive tumorigenesis , invasion and metastasis of hepatic carcinoma, colon cancer and gastric cancer, which is closely associated with epithelialtomesenchymal transition, the regulation of cell proliferation and wnt signaling pathway. HNF4α expression and its regulation mechanism in the digestive system tumors are now the research focus.
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    Research progress of SPARC in esophageal cancer
    HUANG Hai-Bo, ZHAO Yan-Yang, SHU Jun
    2014, 41 (12):  918-921.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.013
    Abstract ( 402 )   PDF (666KB) ( 1330 )   Save
    Secreted protein acidic and rich in cysteine (SPARC) is expressed in esophageal cancer abnormally. On the one hand, recent studies show that high SPARC expression is correlated with progression and metastasis of esophageal cancer. On the other hand, high SPARC expression increases chemosensitivity and improves shortterm efficacy in patients.
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    Research progress of lymph node metastasis in esophageal cancer
    YING Yin-Yin, XU Ya-Ping, MAO Wei-Min
    2014, 41 (12):  921-925.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.014
    Abstract ( 619 )   PDF (673KB) ( 1629 )   Save
    Lymph nodes (LN)are the main parts of the esophageal cancer metastasis, and the current status of LN is the important indicator of prognosis. LN metastasis appears in early stage of esophageal cancer. One side, LN metastasis easily appears in the regions near the tumor and some special areas. On the other side, LN metastasis has the characteristics of wide metastasis and skip metastasis. Therefore, the researches of the pattern of esophageal cancer lymph node metastasis can help to comform the scope of the esophageal cancer lymph node dissection and the target regions of radiotherapy.
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    Non-surgical treatment of hepatocellular carcinoma
    LU Guang-Ping
    2014, 41 (12):  925-929.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.015
    Abstract ( 394 )   PDF (676KB) ( 1286 )   Save
    Treatment strategies of advanced hepatocellular carcinoma reduce pain, improve quality of life and prolong survival. The latest developments at home and abroad focus on a variety of topical treatments (endovascular treatment, a variety of ablation therapy, radiation therapy) combined with each other and also combined with targeted therapy. In addition, systemic chemotherapy, biological targeting therapy and traditional Chinese medicine have achieved some new progressions.
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    Mechanism of phytochemicals as anticancer agents in parcreatic carcinoma
    DANG Jun-Qiang, CHEN Yuan, LIN Wen, LI Chang-Bin
    2014, 41 (12):  930-933.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.016
    Abstract ( 537 )   PDF (667KB) ( 1314 )   Save
    Pancreatic cancer remains a devastating disease with a 5year survival rate of less than 5%. Recent advances in diagnostic methods and therapeutic approaches have increased the possibility of improving the existing poorprognosis. Recently, compounds from naturalsources receive ample attention as anticancer agents. Overwhelming in vitro evidence and clinical trials suggest that curcuminn, isothiocyanate, capsaicin, catechin may reduce the incidence of cancer.
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    Chemotherapy and radiatherapy induced haemorrhagic cystitis: current progress of the treatment
    YIN Zhuo-Min, YU Hua
    2014, 41 (12):  934-937.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.017
    Abstract ( 709 )   PDF (664KB) ( 1593 )   Save
    Haemorrhagic cystitis (HC) is a potentially severe complication, caused by highdose chemotherapeutic drugs or radiation therapy (RT). It is thought that a defect caused by chemotherapeutic drugs in the glycosaminoglycan (GAG) layer may be the first step in HC development. The pathogenesis of RTinduced cystitis originates as a progressive obliteration of the small blood vessels of the bladder wall. Mesna, hyperhydration and continuous bladder irrigation have been shown effective in preventing HC. However, these preventive protocols do not always satisfactorily protect the patient from bladder injury. In recent years, GAGreplenishment therapy and hyperbaric oxygen therapy have gained some evidence exists. Currently, there is a lack of consensus about the best treatment for patients with chemotherapy and radiatherapy induced HC. Therefore, the prevention and treatment of this complication is still the focus at present.
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    Clinical progress of the standard treatment of cervical cancer
    BAI Jing
    2014, 41 (12):  937-940.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.018
    Abstract ( 380 )   PDF (665KB) ( 1377 )   Save
    In recent years, the efficacy of cervical cancer treatment has been increasing gradually. It has got a basic consensus of the standard treatment mode for most cervical cancer, but further effort should be done to improve the treatment response of locally advanced cervical cancer and recurrent or metastatic cervical cancer. The efect of redical surgery and radiotherpy is the same to early cervical cancer. Concurrent chemoradiotherapy is the standard treatment for patients with locally advanced cervical cancer. Chemotherapy combined with antiangiogenic targeted therapy can improve the survival of patients with recurrent or metastatic cervical cancer, while whether needing new adjuvant therapy or not, it asks for further investigation.
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    Endostatins combined radiotherapy and chemotherapy in the treatment of advanced non-small cell lung cancer
    ZHANG Lei, CAO Yong
    2014, 41 (12):  941-945.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.019
    Abstract ( 324 )   PDF (953KB) ( 1162 )   Save
    ObjectiveTo preliminary study clinical efficacy and toxicity of endostatin (ES) combined radiotherapy and chemotherapy in advanced nonsmall cell lung cancer (NSCLC), and evaluate its effectiveness and safety. MethodsWe retrospectively reviewed 64 patients with ⅢBⅣ stage NSCLC of Harbin Medical University Cancer Hospital from February 2009 to February 2012.The patients were divided into two groups:chemoradiotherapy group, 39 patients and ES add chemoradiotherapy group, 25 patients. The shortterm effect, the total efficiency, median survival time, progressionfree survival time and diseasefree survival time were compared. ResultsThe total effective rate of chemoradiotherapy group was 76.9%, while the total effective rate of ES add chemotherapy group was 84.0%(χ2=0.47, P=0.492). Chemoradiotherapy group, compared to ES add chemotherapy group, the median survival time, median progressionfree survival time, median diseasefree survival time were 11.52 months vs 16.51 months (χ2=3.74, P=0.042), 7.32 months vs 10.37 months (χ2=5.32, P=0.025) and 5.21 months vs 7.57 months (χ2=4.56, P=0.035)respectively. The mainly adverse drug reactions were hematologic toxicity and gastrointestinal reactions, but there were no significant differences between the two groups; radiotherapy side effects mainly showed the grade 1 to 2 radiationinduced lung injury and radiation esophagitis (chemotherapy group had one case of grade 3 radiationinduced lung injury), but also had no significant differences between the two groups. ConclusionES combined chemoradiotherapy can achieve a better shortterm clinical efficacy without increasing adverse effects of radiotherapy or  chemotherapy in advanced nonsmall cell lung cancer.
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    Expression and clinical significance of IMP3 and p16 in cervical carcinoma
    FENG Yan-Li
    2014, 41 (12):  946-949.  doi: 10.3760/cma.j.issn.1673-422X.2014.12.020
    Abstract ( 551 )   PDF (668KB) ( 1306 )   Save
    ObjectiveTo detect the expression of insulinlike growth factor Ⅱ mRNAbinding protein 3 (IMP3) and p16 in cervical carcinoma and investigate their clinical significance. MethodsImmunohistochemical Envision method was used to detect the expression of IMP3 and p16 proteins in 67 cases of carcinoma of the uterine cervix, 58 cases of cervical intraepithelial neoplasia (CIN) and 15 cases of normal cervical epithelium. ResultsIMP3 was mainly dedected  in the cytoplasm, whose positive expression rate was 85.07%(57/67)in cervical carcinoma, 12.07% (7/58) in CIN (χ2=66.32, P<0.05) and 0 (0/15) in cervical epithelium (χ2=44.38, P<0.05). No significance variations of the expression of IMP3 were observed in cervical adenocarcinoma and squamous cell carcinoma (χ2=0.35, P>0.05). p16 was found both in nucleus and cytoplasm of cervical carcinoma, whose expression rate was 83.58% (56/67), higher than 41.37% (24/58) in CIN (χ2=24.85, P<0.05) and 0 (0/15) in cervical epithelium (χ2=42.61, P<0.05). ConclusionExpression of IMP3 and p16 is high in cervical carcinoma, maybe can be used as a potential biomarker of metastasis and progression.
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