Soluble receptor activator of nuclear factor-kB ligand : involvement and significance as therapeutics in the osteolysis associated with breast cancer growth in the bone microenvironment
Project/Area Number |
21590442
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Experimental pathology
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Research Institution | Nagoya City University |
Principal Investigator |
FUTAKUCHI Mitsuru 名古屋市立大学, 大学院・医学研究科, 准教授 (60275120)
|
Co-Investigator(Renkei-kenkyūsha) |
FUKAMACHI Katsumi 名古屋市立大学, 大学院・医学研究科, 助教 (90381798)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 腫瘍 / 骨転移 / sRANKL / TGFβ / 乳癌 / 腫瘍間質相互作用 / 骨微小環境 / 腫瘍・間質相互作用 |
Research Abstract |
Understanding how cancer cells induce bone metastases is essential for the identification of new therapies to control bone metastasis. Using a mouse model that mimics osteolytic changes associated with breast cancer-induced bone metastases, we identified cathepsin G to be proteases that are up-regulated at the tumor bone(TB)-interface. Moreover, we showed that cathepsin G is capable of shedding the extracellular domain of receptor activator of nuclear factor-KB ligand(RANKL), generating active soluble version(sRANKL) that is capable of inducing differentiation and activation of osteoclast precursors. The major source of cathepsin G seems to be osteoclasts. Furthermore, we showed that in vivo inhibition of cathepsin G reduces mammary tumor. induced osteolysis. Next we examined the preventive effects of a competitive inhibitor of sRANKL, osteoprotegrin fusion protein(OCIF) was administered to mice before osteolysis induction by implantation of mammary tumor cells(pre), after osteolysis induction(post) or during the entire experimental period(whole). Tumor growth at the TB-interface was significantly suppressed in the pre as well as the post and whole treatment groups of OCIF. The extent of bone destruction was significantly reduced in the pre, post and whole treatment groups. In addition, significantly fewer osteoclasts wereobserved in the OCIF treatment groups regardless of treatment period. Together, our data indicate that inhibition of cathepsin G activity at the TB interface could be therapeutic targets, and sRANKL which is generated by cathepsin G is a potentially target for prevention as well as treatment of breast cancer bone metastasis.
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Report
(4 results)
Research Products
(36 results)
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[Journal Article] Lack of promoting effect of titanium dioxide particles on ultraviolet B-initiated skin carcinogenesis in rats2011
Author(s)
Xu, J., Sagawa, Y., Futakuchi, M., Fukamachi, K., Alexander, D. B., Furukawa, F., Ikarashi, Y., Uchino, T., Nishimura, T., Morita, A., et al
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Journal Title
Food Chem Toxicol
Volume: 49
Pages: 1298-1302
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Peer Reviewed
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[Journal Article] Involvement of macrophage inflammatory protein 1alpha(MIP1alpha) in promotion of rat lung and mammary carcinogenic activity of nanoscale titanium dioxide particles administered by intra-pulmonary spraying2010
Author(s)
Xu, J., Futakuchi, M., Iigo, M., Fukamachi, K., Alexander, D. B., Shimizu, H., Sakai, Y., Tamano, S., Furukawa, F., Uchino, T., et al
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Journal Title
Carcinogenesis
Volume: 31
Pages: 927-935
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Peer Reviewed
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[Journal Article] Cancer prevention by bovine lactoferrin : from animal studies to human trial2010
Author(s)
Tsuda, H., Kozu, T., Iinuma, G., Ohashi, Y., Saito, Y., Saito, D., Akasu, T., Alexander, D. B., Futakuchi, M., Fukamachi, K., et al
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Journal Title
Biometals
Volume: 23
Pages: 399-409
Related Report
Peer Reviewed
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[Journal Article] A medium-term, rapid rat bioassay model for the detection of carcinogenic potential of chemicals2010
Author(s)
Tsuda, H., Futakuchi, M., Fukamachi, K., Shirai, T., Imaida, K., Fukushima, S., Tatematsu, M., Furukawa, F., Tamano, S., and Ito, N
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Journal Title
Toxicol Pathol
Volume: 38
Pages: 182-187
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Peer Reviewed
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[Journal Article] Mature acinar cells are refractory to carcinoma development by targeted activation of Ras oncogene in adult rats2010
Author(s)
Tanaka, H., Fukamachi, K., Futakuchi, M., Alexander, D. B., Long, N., Tamamushi, S., Minami, K., Seino, S., Ohara, H., Joh, T., and Tsuda, H
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Journal Title
Cancer Sci
Volume: 101
Pages: 341-346
NAID
Related Report
Peer Reviewed
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[Journal Article] Matrix metalloproteinase(MMP)-13 regulates mammary tumor-induced osteolysis by activating MMP9 and transforming growth factor-beta signaling at the tumor-bone interface2010
Author(s)
Nannuru, K. C., Futakuchi, M., Varney, M. L., Vincent, T. M., Marcusson, E. G., and Singh, R. K
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Journal Title
Cancer Res
Volume: 70
Pages: 3494-3504
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Peer Reviewed
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[Journal Article] Enhanced expression and shedding of receptor activator of NF-kappaB ligand during tumor-bone interaction potentiates mammary tumor-induced osteolysis2009
Author(s)
Nannuru, K. C., Futakuchi, M., Sadanandam, A., Wilson, T. J., Varney, M. L., Myers, K. J., Li, X., Marcusson, E. G., and Singh, R. K
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Journal Title
Clin Exp Metastasis
Volume: 26
Pages: 797-808
Related Report
Peer Reviewed
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[Journal Article] Construction of a Multi Functional Helper Dependent Adenovirus Based System2009
Author(s)
Long, N., Shirai, T., Hardiville, S., Pierce, A., Fukamachi, K., Futakuchi, M., Alexander, D. B., and Tsuda, H
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Journal Title
Asian Pacific J Cancer Prev
Volume: 10
Pages: 939-960
Related Report
Peer Reviewed
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[Journal Article] Anticarcinogenesis pathways activated by bovine lactoferrin in the murine small intestine2009
Author(s)
Iigo, M., Alexander, D. B., Long, N., Xu, J., Fukamachi, K., Futakuchi, M., Takase, M., and Tsuda, H
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Journal Title
Biochimie
Volume: 91
Pages: 86-101
Related Report
Peer Reviewed
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[Journal Article] Transforming growth factor-beta signaling at the tumor-bone interface promotes mammary tumor growth and osteoclast activation2009
Author(s)
Futakuchi, M., Nannuru, K. C., Varney, M. L., Sadanandam, A., Nakao, K., Asai, K., Shirai, T., Sato, S. Y., and Singh, R. K
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Journal Title
Cancer Sci
Volume: 100
Pages: 71-81
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Peer Reviewed
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[Presentation] Soluble receptor activator of nuclear factor-kB ligand : the involvement in the osteolysis associated with breast or prostate cancer growth in the bone microenvironment and its significance as therapeutics for bone metastatic cancer2010
Author(s)
Futakuchi, M., Nannuru, K. C., Wilson, T. J., Suzui, M., Fukamachi, K., and Singh, R
Organizer
Joint Metastasis Research Society-AACR Conference, Metastasis and the tumor microenvironment
Place of Presentation
Philadelphia, PA
Year and Date
2010-09-12
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