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1.
A cell line, HuH-28 was established in vitro from a patient with cholangiocellular carcinoma (CCC). This cell line has been in continuous culture over 10 month period with slow growth potential. HuH-28 was composed of spindle-shaped cells as major population besides a small percentage of polygonal-shaped cells. Chromosome number of the cells were distributed near the hypotriploid region on the 3rd passage. HuH-28 cells were not transplantable into nude mice, but secreted some tumor markers including alkaline phosphatase (ALP), gamma glutamyltranspeptidase (GGT), beta 2-microglobulin (BMG), ferritin, elastase-1 and tissue polypeptide antigen (TPA). This HuH-28 cell line will represent a good model for the investigation of carcinogenesis, histogenesis+ and diagnosis of CCC.  相似文献   

2.
Summary A human hepatocellular carcinoma cell line (FOCUS—Friendship of China and United States) was derived from a patient with primary hepatocellular carcinoma. This cell line has been in continuous culture over an 18-mo period. The morphological and ultrastructural features of FOCUS are consistent with its neoplastic hepatocellular orgin. FOCUS cells contain aspartate aminotransferase and glucose-6-phosphatase activity. In addition, α1-antitrypsin, fibrinogen, alpha fetoprotein, and carcinoembryonic antigens were detectble in the cytoplasm of the cultured cells by immunochemical staining techniques. The karyotype of the FOCUS cell is human in origin and it contains human DNA sequences as detected by molecular hybridization analysis. The FOCUS cells do not show evidence of density-dependent inhibition of growth under confluent conditions. Repeated growth curves over an 18-mo period were identical, revealing a doubling time of 42 to 48 h. The malignant potential of FOCUS cells was further demonstrated by their ability to lead to gross tumor formation after subcutaneous infection into nude mice. From one of the solid tumors grown in nude mice, recultured cell lines have been established and found to have properties identical to the original FOCUS cell line. This FOCUS cell line represents an additional model for further investigation of tumor specific antigens and the relationship between hepatitis B virus (HBV) and hepatocellular carcinoma. Preliminary molecular characterization has indicated the existence of integrated HBV sequences within the FOCUS genome.  相似文献   

3.
A human hepatocellular carcinoma cell line (FOCUS--Friendship of China and United States) was derived from a patient with primary hepatocellular carcinoma. This cell line has been in continuous culture over an 18-mo period. The morphological and ultrastructural features of FOCUS are consistent with its neoplastic hepatocellular origin. FOCUS cells contain aspartate aminotransferase and glucose-6-phosphatase activity. In addition, alpha 1-antitrypsin, fibrinogen, alpha fetoprotein, and carcinoembryonic antigens were detectable in the cytoplasm of the cultured cells by immunochemical staining techniques. The karyotype of the FOCUS cell is human in origin and its contains human DNA sequences as detected by molecular hybridization analysis. The FOCUS cells do not show evidence of density-dependent inhibition of growth under confluent conditions. Repeated growth curves over an 18-mo period were identical, revealing a doubling time of 42 to 48 h. The malignant potential of FOCUS cells was further demonstrated by their ability to lead to gross tumor formation after subcutaneous injection into nude mice. From one of the solid tumors grown in nude mice, recultured cell lines have been established and found to have properties identical to the original FOCUS cell line. This FOCUS cell line represents an additional model for further investigation of tumor specific antigens and the relationship between hepatitis B virus (HBV) and hepatocellular carcinoma. Preliminary molecular characterization has indicated the existence of integrated HBV sequences within the FOCUS genome.  相似文献   

4.
目的:取肾癌病人标本建立一株新的人肾癌细胞系,初步对该细胞系进行鉴定,为进一步的肾癌基础研究提供实验模型.方法:2008-2009年间共采集20例肾癌新鲜手术标本,于手术后1 h内将每例标本切取四块0.5cm× 0.5 cm× 0.5 cm组织块,分别包埋于2只裸鼠的右后肢皮下及背部皮下,连续传代3次,取移植瘤体外培养,记录细胞株的生长曲线,测定细胞集落形成率,对细胞进行DNA含量测定,进行染色体分析及病理学检查.结果:其中1只裸鼠皮下移植瘤生长,继续传代,肿瘤生长速度明显加快.取移植瘤标本体外培养得到肾癌细胞系XJG-9201.形态结构,分化程度与原发瘤一致,染色体众数为65.细胞群体倍增时间为38.2h,细胞周期分析G1期62.7%,G2期11.2%,S1期25.3%,集落形成率为70%.结论:肾癌细胞系XJG-9201与原发癌保持相同的生物学特性,体外连续传代1年以上传115代.细胞形态不变,生长周期恒定,已成为一个稳定的细胞系.  相似文献   

5.
A human hepatocellular carcinoma cell line, JHH-4 was established from resected liver tumor. Morphological diagnosis of the original tumor was hepatocellular carcinoma, Edmondson type III. This cell line was composed of polygonal shaped cells. Subcellular organelle were observed in cytoplasm. Furthermore, bile canaliculi adhering junction was also remained at the cell surface. The growth rate of JHH-4 cell is slow, peaks of the chromosome number was 75 and 79, and plating efficiency was 3.0%. JHH-4 cell is transplantable to nude mouse. Furthermore, this cell line functionally synthesized and secreted human albumin, AFP and other proteins in vitro.  相似文献   

6.
Human squamous cell carcinoma (SCC) of the bladder is a rare malignancy that represents less than 5% of bladder tumors. In contrast to non-bilharzial SCC, bilharzial SCC is a distinct pathological disease that is rarely encountered in Japan. The majority of patients with non-bilharzial SCC present with a poorly differentiated, muscle-invasive tumor with no previous episode of urothelial carcinoma (UC). Even in the absence of distant metastases, the prognosis of patients with non-bilharzial SCC of the bladder remains dismal because patients die of localized recurrence. This is in contrast to UC in which distant metastasis accounts for the great majority of recurrence. The 5-year survival rate of the patients treated for non-bilharzial SCC of the bladder was only about 10%. To date, large numbers of reports have examined the establishment of a human bladder cancer cell line with UC. However, few reports exist regarding the establishment of the human bladder cancer cell line with SCC. In the present study, we established a new cell line (TMUU-08) from the metastatic lymph node of a patient with SCC of the bladder. The TMUU-08 cell line of human bladder SCC was characterized. These results indicate that TMUU-08 cells might be useful in basic studies not only in the treatment but also etiology of human bladder SCC.  相似文献   

7.
The undifferentiated carcinoma cell line (HMG) was established from a nude mouse tumor which had been produced by transplantation of a intraperitoneal tumor of 27-year-old woman. The HMG cell line has the following biological properties. 1. The HMG cells are round to oval in shape and grow as floating cell aggregates like a rouleau or a cluster of grapes. 2. 100 passages have been carried out over a year, and the population doubling time is about 17 hrs. 3. In the original tumor, keratin and vimentin were expressed simultaneously, in HMG cells, however, only localization of vimentin was confirmed. 4. By chromosomal analysis, over 90% of the cells revealed 46, XX, with no karyological abnormalities, at passage 82. 5. When heterotransplanted into the subcutis of a nude mouse, HMG cells produced a undifferentiated carcinoma resembling the original tumor.  相似文献   

8.
A new cell line of human uterine endometrial undifferentiated carcinoma, designated as TMG-L, was established from the metastatic lymph node of 56-year-old patient TMG-L cells have been cultured with Ham's F-12 medium supplemented with 10% FCS and grew as a loosely adherent monolayer with polygonal or spindle-shaped cells exhibiting poor cell-cell contact and piled up against each other, showing a tendency to grow as floating cells. The doubling time of this cell line was about 48 hours, and chromosomal analysis revealed aneuploidy at passage 25. The cells formed tumors in SCID mouse, the histology of which was similar to that of undifferentiated carcinoma component of primary tumor. TMG-L cells showed the loss of expression and membranous localization of either E-cadherin or alpha-catenin, implied corresponding loss of their adhesive function. And this dysfunction implicated the biological aggressive behavior of uterine endometrial undifferentiated carcinoma. This cell line appears to provide a useful system for studying uterine undifferentiated carcinoma in vivo and in vitro.  相似文献   

9.
Summary A new cell line, SS78, was established from a primary renal cell carcinoma of a Caucasian male. The tissue was dispersed with collagenase, and viable cells were separated by flotation on a Ficoll-Hypaque gradient. In culture, the SS78 cells retained a distinct epithelial morphology, and no fibroblastlike cells were seen. The cultured cells were aneuploid with a modal chromosome number of 80 and had several marker chromosomes. Inoculation of the cultured cells into athymic nude mice caused tumors at the sites of inoculation. This research was supported in part by Grants CA 15972 and CA 14930 from the National Cancer Institute through the National Bladder Cancer Project and by the Medical Research Service of the Veterans Administration.  相似文献   

10.
The isolation of radiosensitive mammalian cell mutants has been limited largely to rodent cells. We report here the isolation of a radiosensitive variant (S40b) from 3648 analyzed clones of a mutagenized human bladder carcinoma cell line (MGH-U1). The surviving fraction at 2 Gy was 0.32 for S40b cells compared with 0.72 for MGH-U1 cells. Split-dose recovery experiments done at several doses did not show a difference between S40b and the parental line at any dose. Irradiation at the low dose rate of 2 cGy min-1 did not show a decreased dose-rate sparing at isoeffect in S40b cells. There was no difference between MGH-U1 and S40b cells in the amount of DNA damage present immediately after irradiation, as detected by neutral filter elution. The S40b variant therefore represents a new tool for the examination of the processing of DNA damage in human cells.  相似文献   

11.
Summary Sera from 144 healthy blood donors were screened for the presence of antibody against the bladder carcinoma cell line RT4 by means of an immune adherence assay. Only one serum (9241) demonstrated high activity with a titer of 1/124. Qualitative and quantitative absorption analyses were carried out with a wide variety of cells to characterize the specificity of the reaction. Cells used for absorption were both cultured and non-cultured and normal and malignant. The reactivity was absorbed by the bladder cancer cell lines RT4 and 5637 and the lung cancer cell line SK-LC-LL. In addition, surgically obtained urothelium from a patient with transitional cell carcinoma abrogated reactivity. No other absorbing cells removed the reactivity of serum 9241 for RT4. The antigen defined by this serologic reaction is heat-stable and trypsin-resistant, as demonstrated by using heated or trypsinized RT4 cells for absorption.This study shows that naturally occurring antibody directed toward cell surface antigens of tumor cells is present in some normal individuals. This finding is important in the evaluation of a possible causal relationship between the presence of antibody specific for tumor cell antigens and the development of neoplasia.  相似文献   

12.
Summary A new renal cell carcinoma (RCC) cell line (KRC/Y) has been established from a surgical specimen of a 41-yr-old Japanese female patient with RCC composed of both clear cells and granular cells. This cell line has been maintained for more than 15 mo. through 45 passages with a stable growth, KRC/Y cells have clear or eosinophilic polygonal cytoplasm and round to oval nuclei with one or two nucleoli, and proliferate in a pavementlike cell arrangement with a lack of contanct inhibition. By electron microscopy, these cells contain abundant fat droplets and glycogen granules or well-developed organells or both, which were also observed in the original tumor. The doubling time of these cells at the 15th passage was 73 h. The chromosome number was from 37 to 45 with a hypodiploid modal number of 42. Tumorigenicity was identified by tumor formation after subcutaneous injections of KRC/Y cells in nude mice, which showed close resemblance to the original tumor by light and electron microscope observations. This study was supported in part by Sarah Cousin Fund, Boston, MA.  相似文献   

13.
14.
We present a new cell line, EJ established from an invasive endometrioid adenocarcinoma of the uterine corpus in a 56-year-old patient. The cells show rapid growth in culture with a doubling time of 16 h and high migration activity. Monolayer-cultured cells were polygonal in shape showing a tendency to pile up without contact inhibition. Subcutaneous transplantation of the EJ cells into nude mice formed solid tumors that were histologically diagnosed as adenocarcinoma, whereas no metastasis was observed. Cultured EJ cells produced tissue polypeptide antigen (IPA). Genetic and molecular analyses revealed high telomerase activity but not estrogen receptor alpha expression. Using the DNA sequencing technique, we have screened EJ cells for p53 mutation in exon 5 to 8 but no mutation of p53 was observed. This cell line appears to represent the development of a more malignant clone with divergent receptor function and growth behavior, and provides us with an interesting new tool for the study of tumorigenesis in the human endometrium.  相似文献   

15.
A cell line, designated NOCC, was established from the ascites of a patient with clear cell adenocarcinoma of the ovary. The cell line has been grown without interruption and continuously propagated by serial passaging (more than 76 times) over 7 years. The cells are spherical to polygonal-shaped, display neoplastic, and pleomorphic features, and grow in a jigsaw puzzle-like pattern while forming monolayers without contact inhibition. The cells proliferate rapidly, but are easily floated as a cell sheet. The population doubling time is about 29 h. The number of chromosomes ranges from 60 to 83. The modal number of chromosomes is 70–74 at the 30th passage. NOCC cells secreted 750.5 ng/ml of VEGF over 3 days of culture. Hypoxia inducible factor-1α (HIF-1α) is a primary regulator of VEGF under hypoxic conditions. NOCC cells were not sensitive to the anticancer drugs BEV, DOX, GEM, ETP, CDDP, or TXT. The graft of NOCC cells to a scid mouse displayed similar histological aspects to the original tumor. Both the NOCC cells and the graft of the NOCC cells gave a positive PAS reaction.  相似文献   

16.
A novel serous surface papillary carcinoma of the ovary (SSPC) cell line, HYKSSPC, was established successfully. Carcinoma cells were obtained from ascitic fluid of a 60-year-old Japanese woman. The population doubling time was 51.4 h. A phase contrast micrograph showed a pavement stone-like arrangement without contact inhibition. The chromosome number showed a wide distribution of aneuploidy, and the mode was in 46-47. An immunocytochemical study showed that CA125, BerER4 and cytokeratin were positive and that CEA, calretinin and thrombomodulin were negative. This cell line preserved some characters of the adenocarcinoma while growing in vitro. A chemosensitivity test revealed that HYKSSPC cells were sensitive to CDDP (cis-platinum), 5-fluorouracil, mitomycin C, paclitaxel and irinotecan. To our knowledge, HYKSSPC is the first established cell line derived from SSPC, and it may offer some useful information for investigating this disease.  相似文献   

17.
Osteopontin (OPN) is a secreted glycoprotein implicated to function in cancer development and metastasis. Although elevated expression of OPN are observed in cancer cells of various types, in some cases, only the cells in the stromal region surrounding the tumor express OPN, suggesting distinct functional roles for this protein derived from host cells and from cancer cells. To provide a model for addressing the functions and mechanisms of host-derived OPN in cancer progression and metastasis, a cutaneous squamous cell carcinoma cell line (ONSC) that lacks the OPN gene, Spp1, was established. This line of cells was derived from a squamous cell carcinoma that developed in a female, OPN-null mouse subjected to two-stage skin carcinogenesis. Morphologically, ONSC cells resemble epithelial cells, and they express the epithelial markers, K1, K14, and p63, as confirmed by immunohistochemical analyses. Genomic analyses indicate the presence of mutated H-Ras and p53 genes. ONSC cells form colonies in soft agar and, subcutaneously injected into athymic nude mice, develop into squamous cell carcinomas that metastasize to the lungs. Lacking OPN expression, these squamous cell carcinoma cells provide a model to address the function of host OPN in the context of cancer progression and metastasis.  相似文献   

18.
Salivary gland adenoid cystic carcinoma (SACC) is one of the most common malignancies in the oral and maxillofacial region. Carcinoma-associated fibroblast (CAF) is an important component in the tumor microenvironment and participates in SACC progression. In this study, we established a CAF cell line derived from a human SACC and named it CAF-SA. It was identified that CAF-SA expressed typical CAF biomarkers. Then, we studied the cellular communications between CAF-SA, tumor cells and endothelial cells. It was found that CAF-SA promoted the migration, invasion, and proliferation of SACC tumor cells in vitro. In addition, tube formation by endothelial cells was enhanced by CAF-SA. In vivo experiment showed that SACC cells formed larger xenografts in nude mice when they were transplanted with CAF-SA. Overall, we demonstrated that CAF-SA exhibited the most important defining feature of CAF by promoting cancer progression.  相似文献   

19.
Isolation of a transforming sequence from a human bladder carcinoma cell line   总被引:122,自引:0,他引:122  
C Shih  R A Weinberg 《Cell》1982,29(1):161-169
We have isolated the component of human bladder carcinoma cell DNA that is able to transform mouse fibroblasts. The oncogenic sequence was isolated initially from a lambda phage genomic library made from DNA of a transfected mouse cell carrying the human oncogene. A subcloned insert of 6.6 kb that carried transforming activity was amplified in the plasmid vector pBR322. The subcloned oncogene has been used as a sequence probe in Southern blot analyses. The oncogene appears to derive from sequences present in normal cellular DNA. Structural analysis has failed so far to reveal differences between the oncogene and its normal cellular homolog. The oncogene is unrelated to transforming sequences detected in a variety of other types of human tumor cell lines derived from colonic and lung carcinoma and from neuroblastoma. In contrast, the EJ bladder oncogene appears closely related to one that is active in the human T24 bladder carcinoma cell line. The oncogene appears to have undergone little, if any, amplification in several bladder carcinoma cell lines.  相似文献   

20.
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