A total of 23 new cancer medicines or indication expansions were approved by the U. S. Food and Drug Administration in 2012. Among these, 12 are new molecular entities (NMEs)--new chemical or biological drugs approved for the first time for oncologic use--and 10 of these NMEs are molecular targeted agents. Among the 10 targeted agents, 4 are anti-angiogenesis agents and 2 are Bcr-Abl pathway inhibitors, targeting well established targets validated by previously approved agents such as bevacizumab (Avastin) or imatinib (Gleevec). Despite this progress, several questions remain: Do these newly approved agents provide sufficient treatment options to manage the broad spectrum of cancers we deal with in the clinic? Where will the next wave of new cancer drugs come from? Where should R&D efforts be invested to continue improve cancer treatment and management, especially for tumor types uniquely prevalent in China? This editorial and the review articles in this special issue of Chinese Journal of Cancer provide an in depth review of the progress and challenges in developing targeted cancer therapies, as well as an outlook of new research areas where near term breakthroughs are expected to overcome some of these challenges.
Angiogenesis Inhibitors ; therapeutic use ; Antineoplastic Agents ; therapeutic use ; China ; Drug Delivery Systems ; Drug Discovery ; Humans ; Immunotherapy ; Molecular Targeted Therapy ; Neoplasms ; therapy

Burns, Chemical ; Humans ; Phenols ; adverse effects

To explore the stability of impact assay for determination of microorganism in indoor air, the comparisons of continued sampling times of 2-minute and 4-minute for monitoring on microorganism of indoor air were carried out with JWL- Ⅱ B multifunctiom air microorganison monitor in 11 hotels, public places of entertainment, barbar shops and beauty shops. The results showed that, under a same environmental condition, there was no significant differences between the data obtained by 2-minute monitoring and 4-minute monitoring (t=1.854, P＞0.05).It indicated that impact assay presented very good stability in detecting the microorganism of indoor air within certaindetecting duration.

Objective To discuss the correlation between the expressions of high mobility group protein box 1(HMGB1),VEGF-C/D and lymph node metastasis in colon cancer.Methods Forty-five colon cancer samples were stained by immunohistochemical method for VEGF-C/D,HMGB1.The correlations of VEGF-C/D,HMGB1 expressions and lymph node metastasis were analyzed statistically.Results Positive HMGB1 expression was in 33 specimens,lymph node metastasis was in 27 specimens with 23 specimens of positive HMGB1 and non-lymph node metastasis was in 18 specimens with 10 specimens of positive HMGB1.Positive VEGF-C expression was in 27 specimens with 20 in lymph node metastasis.The expression of HMGB1 was consistent with VEGF-C expression,and HMGB1 and VEGF-C expressions were closely correlated with lymph node metastasis,but not with age,sex,cellular differentiation.Conclusion HMGB1 and VEGF-C expression may become predictor to the prognosis of colon cancer patients.

Objective To discuss the clinical effect on treating hysteromyoma with compound acetic acid gossypol tablets.Methods 50 patients who are diagnosed with hysteromyoma take compound acetic acid gossypol tablets 20mg after supper every day for 3 months. Then Monitor the size of uteruses and tumors of the patients,hemoglobinuria routine、liver function、blood sugar、blood ester、follicle stimu- lating hormone、luteinizing hormone、lactation hormone、progestogen hormone、androsterone hormone using B-ultrasound waves before and after treatment.Results patients will have amenorrhea during treatment and the symptom will disappear.The tumor will dwindle in size by 54.66%(P＜0.01)on average.The Hysteromyoma will dwindle by 50.66%(P＜0.05)on average.Also hemoglobin,Hb returns to nom- al.As a result,the blood sugar and lactation harmone reduce a lot than that before treatment.And other monitoring quality doesnt change obviously.Conclusions There is of great effect using compound acetic acid gossypol tablets to treat hysteromyoma and it has no side effect.It is an available conservative treatment.

Objective To study the correlation of blood uric acid,lipoprotein associated phospholipase A2(Lp-PLA2) and arterial stiffness in young patients with coronary heart disease.Methods 56 young patients with coronary heart disease were selected as the observation group,50 young healthy subjects were selected as control group.The serum uric acid,Lp-PLA2 and arterial stiffness in the two groups were determined.Blood uric acid,Lp-PLA2 and arterial stiffness in patients with coronary heart disease were analyzed.Results There were no significant differences in age,sex,BMI,systolic blood pressure,diastolic blood pressure and triglyceride between the two groups (all P>0.05).The total cholesterol,low density lipoprotein,uric acid and Lp-PLA2 in the observation group were significantly higher than those in the control group (t=3.927 4,4.162 4,5.772 6,9.770 1,P<0.05,P<0.01).High density lipoprotein in the observation group was significantly lower than that in the control group (t=2.6043,P<0.05).Multivariate Logistic regression analysis showed that low density lipoprotein cholesterol,uric acid,Lp-PLA2 were independent risk factors for coronary heart disease (low density lipoprotein uric acid OR=1.053,95% CI:1.031-1.106;uric acid OR=1.082,95% CI:1.043-1.115;Lp-PLA2 OR=1.007,95% CI:1.002-1.011).The arterial stiffness of the observation group was (8.86±1.63)v·cm-1·s-1,and had positive correlation with serum uric acid (r=0.221,P<0.05) and Lp-PLA2 (r=0.361,P<0.05).Conclusion Blood uric acid,Lp-PLA2 can reflect the early arterial stiffness in young patients with coronary heart disease.

Medical lnformed Consent(MIC) is a new rule in health care practice.It is required in the Guideline of Medical Record ,which is enacted by National Ministry of Health.Our hospital puts ephasis on Medical Informed Consent Document,modify and apply it into clinical practice by improving understanding.

This article studies the choice of apology strategy among Chinese and American undergraduates from the perspective of cultural analysis.

"College to undergraduate" education has become the major form of our medical adult education currently in China.However,there still exist a variety of problems and malpractices in this education form,which has hindered its healthy and smooth development.Therefore,it is of high significance for us to figure out a new model for medical adult education.

Objective: To establish a model of rat osteosarcoma in nude mice and to study its biological characteristics.Methods: Intact tumor pieces were inoculated into the right tibia of nude mice.The nude mice were killed at different time and the growth of tumor and metastasis were observed.Result: The tumor growth rate was 100%.From the first week to the second week after implantation it grew into outer tissue from tibia,and widely invaded Soft tissue on the third week.Pulmonary metastasis took place from the fourth week to the fifth week,and the nude mice died of cachexia and respiratory failure resulting from the widely whole pulmonary metastasis on the sixth week or so.Conclusion: The tumor growth rate is high.The model simulates the clinical process of human osteosarcoma,and could be a satisfactory model for studying osteosarcoma.