Objective: To investigate the trends in incidence and mortality of lung cancer in Kaihua County, Zhejiang Province from 2011 to 2022, so as to provide insights into improving lung cancer prevention and control strategy. Methods: The incidence and mortality of lung cancer in Kaihua County from 2011 to 2022 were collected through Zhejiang Provincial Chronic Disease Surveillance Information Management System. The crude incidence, standardized incidence, crude mortality and standardized mortality of lung cancer were analyzed, and the trends in incidence and mortality of lung cancer were evaluated using average annual percent change (AAPC). Results: The crude and standardized incidence of lung cancer appeared a tendency towards an increase (AAPC=5.409% and 2.957%, both P<0.05) from 2011 to 2022, with an average annual crude incidence of 75.17/105 and average annual standardized incidence of 44.37/105. Average annual crude incidence (100.16/105 vs. 48.55/105) and standardized incidence (58.03/105 vs. 30.61/105) of lung cancer was higher in males than in females (both P<0.05). The crude incidence of lung cancer in males appeared a tendency towards an increase (AAPC=2.878%, P<0.05), with no significant changing patterns seen in standardized incidence (P>0.05). The crude and standardized incidence of lung cancer in females showed a tendency towards an increase (AAPC=11.596% and 10.464%, both P<0.05). The crude incidence of lung cancer increased rapidly among residents at ages of 45 years and older, and peaked among residents at ages of 80 to 84 years (32.11/105). The crude and standardized mortality of lung cancer appeared a tendency towards a rise and decline (AAPC=1.554% and -2.491%, both P<0.05) from 2011 to 2022, with an average annual crude and standardized mortality of 52.83/105 and 29.09/105. Average annual crude mortality (77.92/105 vs. 26.10/105) and standardized mortality (43.66/105 vs. 14.33/105) of lung cancer was higher in males than in females (both P<0.05). The crude mortality of lung cancer in males appeared a tendency towards a rise, while the standardized mortality appeared a tendency towards a decline (AAPC=1.436% and -2.553%, both P<0.05). No significant changing patterns were seen in crude and standardized mortality of lung cancer in females (both P>0.05). The crude mortality of lung cancer increased rapidly among residents at ages of 50 years and older, and peaked among residents at ages of 80 to 84 years (37.26/105). Conclusions The incidence and mortality of lung cancer appeared a tendency towards an increase in Kaihua County from 2011 to 2022, and a rapid increase was seen in the incidence of lung cancer in females.

Objective To explore the effects of celecoxib, a selective COX-2 inhibitor, on inducing the apoptosis of gastric cancer cells, and to elucidate the concerning mechanisms. Methods Cell viability was measured by MTT assay. Flow cytometry (FCM) was employed to assay apoptosis, mitochondrial membrane potential and intracellular free Ca 2+. Results After being exposed to celecoxib (25, 50, 100 and 200?mol/L) for 4, 8, 12 and 24h, the proliferation of SGC-7901 cells was strongly inhibited in a dose-time dependent manner. The apoptosis induced by celecoxib was accompanied with the attenuation of mitochondrial membrane potential and the elevation of intracellular free Ca 2+ concentration, suggesting the importance of mitochondria in the apoptotic pathway. Conclusion The mitochondrial pathway may be involved in the apoptosis of gastric cancer SGC-7901 cells induced by celecoxib.

Objective To study the inhibitory effect of APE1 expression vector pSilence APE1 on growth of osteosarcoma in nude mice, and to elucidate the role of APE1 in pathogenesis and development of osteosarcoma. Methods Nude mice model bearing osteosarcoma was reproduced by implanting human osteosarcoma cell line 9901. Twenty mice were randomly divided into two groups: control group in which the mice were treated with lipofectamine, and experimental group in which the mice were treated with pSilence APE1. The tumor inhibition rate was calculated after 12 days of treatment. Meanwhile, the expression of APE1 protein, intratumor microvessel density (MVD), and proliferation index were observed by immunohistochemistry. Apoptosis index was assessed by terminal dUTP nick end labeling (TUNEL) technique. Results Down-regulation of APE1 expression of tumor cells was found in the group treated with pSilence APE1. The tumor inhibition rate was 38.23%. The intratumoral microvessel density (MVD) in experimental groups and proliferation index were significantly lower than the control group, while the apoptosis index was much higher. Conclusion Targeted knock down of APE1 by pSilence APE1 may inhibit the growth of osteosarcoma in vivo.

Objective To explore the relation between changes in apurinic/apyrimidinic endonuclease (APE1) gene expression and effects of melphalan on multiple myeloma (MM) cells. Methods Expression of APE1 protein was detected in MM cell line KM3 using immunocytochemical staining and Western blot assay after 0~15?mol/L melphalan treatment for 1~2d. Integral optical density was determined by means of image analysis system. Results There was positive relationship between levels of APE1 protein in KM3 cells and the treatment time and dose of melphalan. Conclusion Expression of APE1 protein could be induced by melphalan treatment. The result suggests that a high expression of APE1 protein may play a certain role in the resistance of multiple myeloma to melphalan.

Objective To investigate the effect of caffeic acid phenethyl ester (CAPE) on the growth of human colorectal carcinoma cell line HCT116 transplanted subcutaneously in nude mice. Methods Nude mouse model of human colorectal carcinoma by subcutaneous transplantation of HCT116 cell line was reproduced. A total of 20 mice were divided into 2 groups: control group and CAPE group (oral administration of CAPE at 5mg/mice/d). The growth of the subcutaneously transplanted tumor and changes in mouse body weight in each group after treatment were observed on 7, 14, 21 and 28d. Histopathological examination of xenograft, heart, liver, lung, kidney and intestine of nude mice was also conducted. Apoptosis index was detected by terminal dUTP nick end labeling (TUNEL) technique. Results CAPE had significantly inhibitory effect on growth of the transplanted xenograft in vivo. Tumor volume and tumor weight were decreased (P

Objectives To study the characteristics of VEGFR-3, podoplanin or CD34 positive vessels in colorectal cancer (CRC) and their correlation with metastasis. Methods The characteristics of VEGFR-3, podoplanin or CD34 positive vessels in 96 cases with CRC and normal mucosa were evaluated by single-labeling or double-labeling immunohistochemistry with anti-human VEGFR-3, podoplanin or CD34 antibody respectively, and their relationship with metastasis of the cancer was analyzed. Results The density of VEGFR-3, podoplanin or CD34 positive vessels at the peripheral region of CRC was significantly higher than that of other regions of CRC or that in normal mucosa (P

Objective To investigate the role of APE1 in the carcinogenesis and progression of colorectal carcinoma (CRC). Methods Expression of APE1 was determined with SP immunohistochemical technique in 40 specimens of normal colorectal mucosa, 60 specimens of colorectal mucosa adjacent to CRC, 72 specimens of colorectal adenoma, and 125 specimens of colorectal carcinoma. Results In normal colorectal mucosa, APE1 was detected in nuclei of epithelial cells. Shift of APE1 from nucleus to cytoplasm was observed in 6 of 60 (10%) specimens of mucosa adjacent to cancer. Such shift was observed in 92 of 125 (73.6%) CRC tissues and 60 of 72 (83.3%) colorectal adenoma, the incidence of both of them was significantly higher than that observed in normal colorectal mucosa and colorectal mucosa adjacent to CRC (P

Objective To observe the effect of caffeic acid phenethyl ester (CAPE) on proliferation, cell cycle and apoptosis of human colorectal cancer cell line SW480.MethodsSW480 cells were treated with CAPE .The proliferative status of cells was measured by methabenzthiazuron (MTT) assay. Cell cycle was analyzed by flow cytometry (FCM) . Apoptosis was detected by FCM. The apoptosis cells were detected by TUNEL staining.ResultsCAPE inhibited growth of SW480 cells in a dose-dependent and time-dependent manner. Cell G_0/G_1 phase rate increased, S phase rate decreased and cell apoptosis rate increased after exposed to CAPE in a dose dependent manner (2.5, 5.0 and 10mg/L). Apoptosis cells increased after the treatment of CAPE.ConclusionsCAPE inhibits the proliferation and induces apoptosis in human colon cancer cell line SW480.The effect mechanism is related to arrest the cell cycle G_1 and induce cell apoptosis.

Objective To evaluate the diagnosis value of C-12 multiple tumor marker protein chip detective system for lung cancer. Methods The serum levels of 12 tumor makers were measured in 172 lung cancer patiens,52 pulmonary benign diseases patients. All lung cancer patients were definitly diagnosised by cytology or histology, including 89 squamous cell carcinoma patients, 72 bronchogenic adenocarcinoma patients, 11 small cell lung cancer patients; 12 patients in stage I, 28 patients in stageII, 65 patients in stage III, 67 patients in stage IV. The 12 common tumor markers in serum included CA199, NSE, CEA, CA242, CA125, CA153, AFP, Ferrtin, free-PSA, PSA, HGH, ?-HCG. Results At least one kind of tumor maker was found higher in 128 of the 172 lung cancer patients, the positive rate was 74.42%, and in 5 of the 52 pulmonary benign diseases patients, the positive rate was 9.62%,it is statistical significance between two the groups (P0.05) in different pathological types lung cancer patients .The positive rate was statistical significance in different stage lung cancer patients , the highest positive rate which in stage IV patients was 79.2% (P

Objective To investigate the relationship between ? catenin expression and colorectal adenoma with canceration. Methods The expression levels of ? catenin in 25 cases of normal colorectal mucosa (NCM), 42 cases of colorectal adenoma (CA), and 19 cases of colorectal adenoma with canceration (CAC) were detected by immunohistochemistry. Results ? catenin expression was detected on the cell membrane in normal colorectal mucosa. Reduced membrane expression, cytoplasmic and nuclear expression were detected in the colorectal adenoma and adenoma with canceration. The cytoplasmic and nuclear expression rate of ? catenin was 89.5% in colorectal adenoma with canceration, significantly higher than that in colorectal adenoma(42 9%, P