The expression of Pim-1 in non-small cell lung cancer and its relationship with c-Myc / 重庆医学

Objective To investigate the expression of Pim‐1 in non small cell lung cancer and adjacent normal tissues ,and study the relationship between c‐Myc and Pim‐1 in the corresponding tissue gene expression .Methods Totally 30 cases of non small cell lung cancer tissue and adjacent normal lung tissues were collected by surgical operation in department of thoracic surgery . Clinical data were statisticed and tracking late pathologic results ,using RT‐PCR ,qRT‐PCR and immunohistochemical method to de‐tect Pim‐1 mRNA ,c‐Myc and Pim‐1 protein expression in lung cancer and adjacent normal tissue ,and to analyze the relationship be‐tween the expression of Pim‐1 and c‐Myc .Results The positive rate of Pim‐1 mRNA and protein expression in non small cell lung cancer was obviously higher than that in adjacent normal tissue ,the mRNA expression levels were 0 .798 ± 0 .083 and 0 .394 ± 0 .107 (P0 .05) ,bue had related to ymph node metastasis and TNM stages of tumor (P<0 .05) ,with lymph node metastasis and TNM sta‐ges increases ,its expression quantity also rise .There was a positive correlation between Pim‐1 and c‐Myc protein expression ,corre‐lation coefficient (r) was 0 .433 (P=0 .017) .Conclusion High expression of Pim‐1 in non small cell lung cancer gene and is also increased with lymph node metastasis and TNM stages ,Pim‐1 and c‐Myc expression has positive correlation ,this could provide clues to the early diagnosis and prognosis evaluation of non small cell lung cancer ,and also provides a new train of thought and to find a new target for gene therapy of lung cancer .

Prognostic Significance of Angiogenesis by Chalkley Counting in Node Negative Cancer of the Ampulla of Vater

Angiogenesis is essential for tumor growth and metastasis. Currently, the Chalkley assay with CD34 immunostaining is the proposed standard method for angiogenesis quantification in solid tumor sections. The purpose of this study was to evaluate the expression of CD34 and its prognostic significance using the Chalkley method in node negative carcinoma of the ampulla of Vater. Between January 1997 and December 2006, 56 node negative patients who had curative resection for carcinoma of the ampulla of Vater were retrospectively reviewed. The Chalkley count was expressed as the mean value of the three counts for each tumor and further divided into two groups according to the mean value of the Chalkley count: low or = 4. The mean Chalkley count value was 4.0 (+/- 3.1). In the low Chalkley group, the 1- and 3-yr recurrence rates were 18.3%, 47.6% respectively; in the high Chalkley group, the 1- and 3-yr recurrence rates were 26.5% and 60.6% respectively. Only high Chalkley count had statistical significance as a factor in recurrence of node negative ampulla of Vater carcinoma. Assessment of angiogenesis may have an important role in the prognostic evaluation of node negative cancer of the ampulla of Vater.

Carcinoma espinocelular subungueal: relato de caso e revisão da literatura / Subungual squamous cell carcinoma: case report and literature review

Apresenta-se caso clínico de carcinoma espinocelular subungueal (CEC subungueal) em paciente do sexo masculino de 89 anos, cuja lesão se localizava na dobra medial do primeiro quirodáctilo esquerdo há quatro anos. Esta apresentação se justifica pela raridade da doença na localização subungueal e pelo fato de se atentar para o diagnóstico diferencial com lesões benignas valorizando o sintoma dor, capaz de sugerir o diagnóstico que, quando precoce, representa melhor prognóstico e menor morbidade. Discutem-se também as abordagens terapêuticas mais indicadas, baseando-se em trabalhos de revisão da literatura, com radioterapia, cirurgia micrográfica de Mohs e amputação.

A clinical case of subungual squamous cell carcinoma, in which a tumor had been located in the medial fold of the left thumb for 4 years, is described in a 89-year-old male patient.The objectives of this study are to draw attention to the rarity of the subungual location of the tumor – highlighting the differences in diagnosis compared with benign lesions – and the importance of pain as a symptom, which may help diagnose the condition early and facilitate a better prognosis and lower morbidity. Additionally, we discuss the more frequently used therapeutic approaches, based on a review of the literature on radiation therapy, Mohs Micrographic Surgery and amputation.

The Role of Postoperative Radiotherapy for Ameloblastic Carcinoma of the Mandible: Case Report / 대한방사선종양학회지

An ameloblastic carcinoma is a very rare odontogenic malignant tumor, which sometimes have a benign clinical nature, but typically have aggressive features, with large ulcerative lesion and extensive local destruction. These clinical characteristics make the complete surgical removal of a tumor difficult. As a consequence, a poor prognosis may result due to local recurrence and distant metastasis. For this reason, it is important to consider adjuvant therapies for high-risk ameloblastic carcinoma patients. Here, the case of a recurrent ameloblastic carcinoma that occurred in the mandible after primary surgery is reported. The lesion was treated with further local excision, followed by postoperative radiotherapy. Also, a few remarks on the role of postoperative radiotherapy in patient with ameloblastic carcinoma have been made from a review of the current literatures on the treatment of this type of lesion.

The Role of Postoperative Radiotherapy for Ameloblastic Carcinoma of the Mandible: Case Report / 대한방사선종양학회지

An ameloblastic carcinoma is a very rare odontogenic malignant tumor, which sometimes have a benign clinical nature, but typically have aggressive features, with large ulcerative lesion and extensive local destruction. These clinical characteristics make the complete surgical removal of a tumor difficult. As a consequence, a poor prognosis may result due to local recurrence and distant metastasis. For this reason, it is important to consider adjuvant therapies for high-risk ameloblastic carcinoma patients. Here, the case of a recurrent ameloblastic carcinoma that occurred in the mandible after primary surgery is reported. The lesion was treated with further local excision, followed by postoperative radiotherapy. Also, a few remarks on the role of postoperative radiotherapy in patient with ameloblastic carcinoma have been made from a review of the current literatures on the treatment of this type of lesion.

Concurrent chemoradiation therapy with cisplatin and paclitaxel for locally advanced non-small cell lung cancer / 中华放射肿瘤学杂志

Objective To evaluate the efficacy of concurrent systemic routine dose of paclitaxel/ cisplatin combined with conventional thoracie irradiation in locally advanced non-small cell lung cancer(NSCLC).Methods Forty-two unresectable stage ⅢA and ⅢB NSCLC patients were entered into this study.All patients received conventional thoracic irradiation to a total dose of 60Gy within 6 weeks,with concurrent paclitaxel 135mg/m~2,d1,and cisplatin 75mg/m~2 in the first and fourth week of radiotherapy.Results The complete response(CR) and partial response(PR) was 2/42,and 30/42 patients,with an overall response rate of 76.2% and a median survival time of 18 months.The 1-,2-,and 3-year survival rate was 64.3%,30.2%,12.0%,respectively.The 1-,2-,and 3-year progression-free survival rates was 48.1%,21.4%,5.7%,with a median progression-free survival of 12 months.Fourteen patients failed only locoregionally,10 in distant metastastasis only and 5 in both.The locoregional/distant failure rate was higher in stageⅢB than in stage ⅢA(P

Pathological Classification of Panaeatic Cancer and Precancerous Casion / 한국간담췌외과학회지

The ductal system of the pancreas, which is responsible for carrying acinar secretion to the duodenum, is perhaps the smallest epithelial component of the pancreas. However, most pancreatic tumors are of ductal origin, and a majority of these are ductal adenocarcinomas. Pancreatic carcinomas of ductal type can be separated into several categories: 1. Conventional ductal adenocarcinoma (tumors that form small tubular glands with luminal and intracellular mucin and are associated with marked stromal desmoplasia). 2. Unusual histological patterns of conventional ductal adenocarcinoma (e.g., foamy gland pattern, large duct pattern, vacuolated pattern, lobular carcinoma-like pattern). 3. Other carcinomas of ductal origin (e.g., colloid carcinoma, adenosquamous carinoma, squamous cell carcinoma, and undifferentiated carcioma). Most tumors in this last category usually have an associated component of conventional ductal adenocarcinoma, which provides evidence of their ductal origin. Precursors of pancreatic ductal adenocarcinoma have been recognized as proliferative epithelium of the ducts. Some lesions with minimal cytologic atypia were not regarded to be neoplastic and were designated hyperplasia or metaplasia, but molecular study revealed most ductal proliferative lesions as neoplastic. Thus the entire spectrum of ductal proliferative lesion is referred to as pancreatic intraepithelial neoplasia (PanIN).

Comparision between a Pylorus-Preserving and a Whipple Pancreaticoduodenectomy

The aim of this study was to establish whether the pylorus-preserving pancreatico-duodenectomy (PPPD) is a safe, but radical, procedure in the treatment of malignant periampullary lesions, without increased morbidity and mortality rates, compared with the standard Whipple's procedure (PD). From 1993 to 1996, a PD (N = 25) or a PPPD(N = 15) was performed on 40 patients. Postoperative mortality rates were 2% after the PD and 0% after the PPPD. The mean operation time and blood loss in the PPPD group were 465 minutes and 840ml, respectively, and in the PD group were 444 minutes and 1080ml, respectively, both statistically insignificant. During follow-up, no differences were found in the postoperative complications, the recurrence of disease, and survival rates according to operation type, lymph node metastasis, or pancreas invasion. No differences were found the numbers of days of gastric drainage, liquid diet, and regular diet, but a delayed gastric emptying time was found in the PPPD group(40% of the patients after PPPD vs 12% after PD). Tumor-containing duodenal or gastric resection margins were not found in either group of patients. The hospital stay was the same for both groups (38 days after PPPD, 37 days after PD). The mean duration of follow-up was 23 months. Weight gain fter operation during follow-up was relatively more favorable after a PPPD. In conclusion, a PPPD is a safe, but radical, procedure and can be an alternative choice, without compromising curability. to a PD in the treatment periampullary cancer. No difference in either the morbidity or the mortality rates existed between the two procedures. Further investigation will be needed to understand the delayed gastric emptying time in the PPPD group, but during 3 months, of follow-up weight gain was better in the PPPD group.

Detection of Human Papillomavirus DNA in Bowen' s Disease and Squamous Cell Carcinoma of the Skin / 대한피부과학회지

BACKGROUND: It has been suggested that human papillomavirua(HPV) infection has been implicated in the pathogenesis of between disease and squamous cell cacoma of the skin, particularly of snogenital area. There is little knowledge about etiologic characteriscs of the development of Bowens disease and squamous cell earcinoma of the skin in Korean patients. OBJECTIVE: This study is intended to evaluate Bowens disease and squamous cell carcinoma of the skin in Korean patients for the presence of HPV. METHODS: Fifteen cases of Bowens disease and fifteen cases of cutaneous squamous cell carcinoma were investigated. All cases developed on a nongenital site. In situ lybridization and polymerase chain reaction(PCR) were used for detection of HPV DNA in paraffinem bedded tissue sections. The clinical records and slides of these cases were reviewed for the analysis of clinicopathologic characteristiqs of HPV DNA positive eases. RESULTS: By in situ hybidization HPV 16 was detected in thrw cases(20%) with Bowens disease. By PCR HPV 16 was detected in six cases(40% ) of Bowens digreae and five cases(33.3) of squamous cell carcinoma of the skin. No specific clinicopathologic fetetues were found to be indicative of the presence or absence of HPV. CONCLUSION: These data suggest a role for HPV in the evolution of Bowens disease and squamous cell carcinoms of the skin in Korean patients.

Effects of selective cyclooxygenase-2 inhibitor Celebrex on the growth of gallbladder carcinoma GBC-SD cell line / 中国普通外科杂志

Objective To investigate the effect of cyclooxygenase-2 inhibitor Celebrex on the growth of(gallbladder) carcinoma GBC-SD cell line.Methods Cell growth suppression was counted by MTT method.Apoptotic index(AI) was evaluated by TUNEL staining.The apoptotic rate was counted by flow cytometry(FCM),fluorescence microscopy(FM) and transmission electron microscopy(TEM).Results Celebrex(inhibiting) the growth of GBC-SD cell line was dose-depend.The growth inhibition rate with 40?mol/L,80?mol/L,120?mol/L and 160?mol/L was 18.77%,25.32%,46.58% and 52.19%(respectively),(P

Effect of down-regulating DNMT3b expression by transfection with antisense gene on the growth of human cholangiocarcinoma cell line QBC939 / 中国普通外科杂志

Objective To study the effect of transfection with antisense DNMT3b gene eukaryotic expression plasmid on the growth of human cholangiocarcinoma cell line QBC939,and to explore the role of DNMT3b in the cholangiocarcinoma tumorigenesis.Methods The constructed antisense DNMT3b gene eukaryotic expression plasmid was transfected into QBC939 cells using liposome.The expression level of DNMT3b protein was detected by Western blot after stable transfection.The growth curves of transfected cells and un-transfected cells were observed by MTT method respectively.The cell proliferation ability was also observed by the test of colony formation in soft agar.The alterations of the cell cycle and the apoptosis rate were detected by FCM.Results Following the transfection,the protein level of DNMT3b decreased significantly;transfection with antisense DNMT3b gene eukaryotic expression plasmid did not affect the cell growth curve of QBC939,and did not decrease the cell colony formation rate(P=0.717);transfection with antisense DNMT3b gene also did not result in cell cycle alterations or induce cell apoptosis(P=0.089).Conclusions Transfection with antisense DNMT3b gene eukaryotic expression plasmid can down-regulate the expression level of DNMT3b in QBC939.It can not affect the growth and proliferation of human cholangiocarcinoma cell line QBC939,nor alter the cell cycle and induce cell apoptosis.