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      1. Author :
        Katharina Jannasch, Jeannine Missbach-Guentner and Frauke Alves
      2. Title :
        Using in vivo imaging for asthma
      3. Type :
        Journal Article
      4. Year :
        N/A
      5. Publication :
        Drug Discovery Today: Disease Models
      6. Products :

        FMT Imaging SystemsProSense

      7. Volume :
        6
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        Drug Discovery
      11. Keywords :
        FMT; ProSense; in vivo imaging
      12. Abstract :
        The incidence of asthma is increasing throughout the world. Animal models are crucial for understanding the pathophysiology of asthma and for developing new therapies. Novel imaging approaches will be a powerful tool for studying asthma in animal models. This review will give a short overview of different imaging techniques that are currently used and will focus on new developments in visualization of asthma that might be used in animals as well as being translated to humans.
      13. URL :
        http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B75D8-4Y5GVHG-1&_user=10&_coverDate=02%2F28%2F2010&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=58c3195065086c72b7aa74f13df11
      14. Call Number :
        PKI @ sarah.piper @
      15. Serial :
        4533
      1. Author :
        Rosenzweig HL, Jann MM, Glant TT, Martin TM, Planck SR, van Eden W, van Kooten PJ, Flavell RA, Kobayashi KS, Rosenbaum JT and Davey MP
      2. Title :
        Activation of nucleotide oligomerization domain 2 exacerbates a murine model of proteoglycan-induced arthritis
      3. Type :
        Journal Article
      4. Year :
        2009
      5. Publication :
        Journal of Leukocyte Biology
      6. Products :

        ProSense

      7. Volume :
        85
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        Physiology
      11. Keywords :
        ProSense; in vivo imaging; NOD2; mice; inflammatory arthritis; TCR transgenic; knockout
      12. Abstract :
        In addition to its role in innate immunity, nucleotide oligomerization domain 2 (NOD2) has been shown to play a suppressive role in models of colitis. Notably, mutations in NOD2 cause the inherited granulomatous disease of the joints called Blau syndrome, thereby linking NOD2 with joint disease as well. However, the role of NOD2 in joint inflammation has not been clarified. We demonstrate here that NOD2 is functional within the mouse joint and promotes inflammation, as locally or systemically administered muramyl dipeptide (MDP; the NOD2 agonist) resulted in significant joint inflammation that was abolished in NOD2-deficient mice. We then sought to investigate the role of NOD2 in a mouse model of inflammatory arthritis dependent on adaptive immunity using TCR-transgenic mice whose T cells recognized the dominant epitope of proteoglycan (PG). Mice immunized with PG in the presence of MDP developed a more severe inflammatory arthritis and histopathology within the joints. Antigen-specific activation of splenocytes was enhanced by MDP with respect to IFN-gamma production, which would be consistent with the Th1-mediated disease in vivo. Intriguingly, NOD2 deficiency did not alter the PG-induced arthritis, indicating that NOD2 does not play an essential role in this model of joint disease when it is not activated by MDP. In conclusion, we demonstrate that in a model of inflammatory arthritis dependent on T and B cell priming, NOD2 activation potentiates disease. However, the absence of NOD2 does not alter the course of inflammatory arthritis, in contrast to models of intestinal inflammation.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2718807/?tool=pubmed
      14. Call Number :
        PKI @ sarah.piper @
      15. Serial :
        4535
      1. Author :
        Holland, Sacha J; Pan, Alison; Franci, Christian; Hu, Yuanming; Chang, Betty; Li, Weiqun; Duan, Matt; Torneros, Allan; Yu, Jiaxin; Heckrodt, Thilo J; Zhang, Jing; Ding, Pingyu; Apatira, Ayodele; Chua, Joanne; Brandt, Ralf; Pine, Polly; Goff, Dane; Singh, Rajinder; Payan, Donald G; Hitoshi, Yasumichi
      2. Title :
        R428, a selective small molecule inhibitor of Axl kinase, blocks tumor spread and prolongs survival in models of metastatic breast cancer
      3. Type :
        Journal Article
      4. Year :
        2010
      5. Publication :
        Cancer research
      6. Products :

        Bioware cell lines

      7. Volume :
        70
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        Animals; Antineoplastic Agents; Benzocycloheptenes; Bioware; Breast Neoplasms; Carcinoma; Female; Hela Cells; Humans; K562 Cells; MDA-MB-231-D3H2LN cells; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Invasiveness; Neoplasm Metastasis; Oncogene Proteins; Protein kinase inhibitors; Proto-Oncogene Proteins; Receptor Protein-Tyrosine Kinases; Survival Analysis; Triazoles; Tumor Cells, Cultured; Xenograft Model Antitumor Assays
      12. Abstract :
        Accumulating evidence suggests important roles for the receptor tyrosine kinase Axl in cancer progression, invasion, metastasis, drug resistance, and patient mortality, highlighting Axl as an attractive target for therapeutic development. We have generated and characterized a potent and selective small-molecule inhibitor, R428, that blocks the catalytic and procancerous activities of Axl. R428 inhibits Axl with low nanomolar activity and blocked Axl-dependent events, including Akt phosphorylation, breast cancer cell invasion, and proinflammatory cytokine production. Pharmacologic investigations revealed favorable exposure after oral administration such that R428-treated tumors displayed a dose-dependent reduction in expression of the cytokine granulocyte macrophage colony-stimulating factor and the epithelial-mesenchymal transition transcriptional regulator Snail. In support of an earlier study, R428 inhibited angiogenesis in corneal micropocket and tumor models. R428 administration reduced metastatic burden and extended survival in MDA-MB-231 intracardiac and 4T1 orthotopic (median survival, >80 days compared with 52 days; P < 0.05) mouse models of breast cancer metastasis. Additionally, R428 synergized with cisplatin to enhance suppression of liver micrometastasis. Our results show that Axl signaling regulates breast cancer metastasis at multiple levels in tumor cells and tumor stromal cells and that selective Axl blockade confers therapeutic value in prolonging survival of animals bearing metastatic tumors.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/20145120
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
        8949
      1. Author :
        Jenkins, Darlene E; Hornig, Yvette S; Oei, Yoko; Dusich, Joan; Purchio, Tony
      2. Title :
        Bioluminescent human breast cancer cell lines that permit rapid and sensitive in vivo detection of mammary tumors and multiple metastases in immune deficient mice
      3. Type :
        Journal Article
      4. Year :
        2005
      5. Publication :
        Breast cancer research: BCR
      6. Products :

        Bioware cell lines

      7. Volume :
        7
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        Animals; Bioware; Breast Neoplasms; Disease Models, Animal; Female; Humans; Luciferases; Mammary Neoplasms, Animal; MDA-MB-231-D3H2LN cells; Mice; Mice, Nude; Neoplasm Metastasis; Plasmids; Transplantation, Heterologous; Tumor Cells, Cultured
      12. Abstract :
        INTRODUCTION Our goal was to generate xenograft mouse models of human breast cancer based on luciferase-expressing MDA-MB-231 tumor cells that would provide rapid mammary tumor growth; produce metastasis to clinically relevant tissues such as lymph nodes, lung, and bone; and permit sensitive in vivo detection of both primary and secondary tumor sites by bioluminescent imaging. METHOD Two clonal cell sublines of human MDA-MB-231 cells that stably expressed firefly luciferase were isolated following transfection of the parental cells with luciferase cDNA. Each subline was passaged once or twice in vivo to enhance primary tumor growth and to increase metastasis. The resulting luciferase-expressing D3H1 and D3H2LN cells were analyzed for long-term bioluminescent stability, primary tumor growth, and distal metastasis to lymph nodes, lungs, bone and soft tissues by bioluminescent imaging. Cells were injected into the mammary fat pad of nude and nude-beige mice or were delivered systemically via intracardiac injection. Metastasis was also evaluated by ex vivo imaging and histologic analysis postmortem. RESULTS The D3H1 and D3H2LN cell lines exhibited long-term stable luciferase expression for up to 4-6 months of accumulative tumor growth time in vivo. Bioluminescent imaging quantified primary mammary fat pad tumor development and detected early spontaneous lymph node metastasis in vivo. Increased frequency of spontaneous lymph node metastasis was observed with D3H2LN tumors as compared with D3H1 tumors. With postmortem ex vivo imaging, we detected additional lung micrometastasis in mice with D3H2LN mammary tumors. Subsequent histologic evaluation of tissue sections from lymph nodes and lung lobes confirmed spontaneous tumor metastasis at these sites. Following intracardiac injection of the MDA-MB-231-luc tumor cells, early metastasis to skeletal tissues, lymph nodes, brain and various visceral organs was detected. Weekly in vivo imaging data permitted longitudinal analysis of metastasis at multiple sites simultaneously. Ex vivo imaging data from sampled tissues verified both skeletal and multiple soft tissue tumor metastasis. CONCLUSION This study characterized two new bioluminescent MDA-MB-231-luc human breast carcinoma cell lines with enhanced tumor growth and widespread metastasis in mice. Their application to current xenograft models of breast cancer offers rapid and highly sensitive detection options for preclinical assessment of anticancer therapies in vivo.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/15987449
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
        8960
      1. Author :
        Rice, B W; Cable, M D; Nelson, M B
      2. Title :
        In vivo imaging of light-emitting probes
      3. Type :
        Journal Article
      4. Year :
        2001
      5. Publication :
        Journal of biomedical optics
      6. Products :

        Bioware cell lines

      7. Volume :
        6
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        Animals; Bioware; Diagnostic Imaging; Fluorescent Dyes; Green Fluorescent Proteins; Luciferases; Luminescent Measurements; Luminescent Proteins; Mice; Mice, Inbred BALB C; Neoplasms; PC-3M-luc; Pneumonia
      12. Abstract :
        In vivo imaging of cells tagged with light-emitting probes, such as firefly luciferase or fluorescent proteins, is a powerful technology that enables a wide range of biological studies in small research animals. Reporters with emission in the red to infrared (>600 nm) are preferred due to the low absorption in tissue at these wavelengths. Modeling of photon diffusion through tissue indicates that bioluminescent cell counts as low as a few hundred can be detected subcutaneously, while approximately 10(6) cells are required to detect signals at approximately 2 cm depth in tissue. Signal-to-noise estimates show that cooled back-thinned integrating charge coupled devices (CCDs) are preferred to image-intensified CCDs for this application, mainly due to their high quantum efficiency (approximately 85%) at wavelengths >600 nm where tissue absorption is low. Instrumentation for in vivo imaging developed at Xenogen is described and several examples of images of mice with bioluminescent cells are presented.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/11728202
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
        8984
      1. Author :
        Jenkins, Darlene E; Hornig, Yvette S; Oei, Yoko; Dusich, Joan; Purchio, Tony
      2. Title :
        Bioluminescent human breast cancer cell lines that permit rapid and sensitive in vivo detection of mammary tumors and multiple metastases in immune deficient mice
      3. Type :
        Journal Article
      4. Year :
        2005
      5. Publication :
        Breast cancer research: BCR
      6. Products :

        Bioware cell lines

      7. Volume :
        7
      8. Issue :
        4
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        Animals; Bioware; Breast Neoplasms; Disease Models, Animal; Female; Humans; Luciferases; Mammary Neoplasms, Animal; MDA-MB-231-D3H1 cells; Mice; Mice, Nude; Neoplasm Metastasis; Plasmids; Transplantation, Heterologous; Tumor Cells, Cultured
      12. Abstract :
        INTRODUCTION Our goal was to generate xenograft mouse models of human breast cancer based on luciferase-expressing MDA-MB-231 tumor cells that would provide rapid mammary tumor growth; produce metastasis to clinically relevant tissues such as lymph nodes, lung, and bone; and permit sensitive in vivo detection of both primary and secondary tumor sites by bioluminescent imaging. METHOD Two clonal cell sublines of human MDA-MB-231 cells that stably expressed firefly luciferase were isolated following transfection of the parental cells with luciferase cDNA. Each subline was passaged once or twice in vivo to enhance primary tumor growth and to increase metastasis. The resulting luciferase-expressing D3H1 and D3H2LN cells were analyzed for long-term bioluminescent stability, primary tumor growth, and distal metastasis to lymph nodes, lungs, bone and soft tissues by bioluminescent imaging. Cells were injected into the mammary fat pad of nude and nude-beige mice or were delivered systemically via intracardiac injection. Metastasis was also evaluated by ex vivo imaging and histologic analysis postmortem. RESULTS The D3H1 and D3H2LN cell lines exhibited long-term stable luciferase expression for up to 4-6 months of accumulative tumor growth time in vivo. Bioluminescent imaging quantified primary mammary fat pad tumor development and detected early spontaneous lymph node metastasis in vivo. Increased frequency of spontaneous lymph node metastasis was observed with D3H2LN tumors as compared with D3H1 tumors. With postmortem ex vivo imaging, we detected additional lung micrometastasis in mice with D3H2LN mammary tumors. Subsequent histologic evaluation of tissue sections from lymph nodes and lung lobes confirmed spontaneous tumor metastasis at these sites. Following intracardiac injection of the MDA-MB-231-luc tumor cells, early metastasis to skeletal tissues, lymph nodes, brain and various visceral organs was detected. Weekly in vivo imaging data permitted longitudinal analysis of metastasis at multiple sites simultaneously. Ex vivo imaging data from sampled tissues verified both skeletal and multiple soft tissue tumor metastasis. CONCLUSION This study characterized two new bioluminescent MDA-MB-231-luc human breast carcinoma cell lines with enhanced tumor growth and widespread metastasis in mice. Their application to current xenograft models of breast cancer offers rapid and highly sensitive detection options for preclinical assessment of anticancer therapies in vivo.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/15987449
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
        8993
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[31–40] << < Back 41 42 43 44 45 46 47 48 49 50 Next > >>     List View  | Details print