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Methods for bladder cancer therapy using baculoviral vectors

A technology of baculovirus vectors and viral vectors, applied in the field of bladder cancer treatment using baculovirus vectors, which can solve the problems of low effectiveness and preventing further use of vectors

Inactive Publication Date: 2015-07-22
AGENCY FOR SCI TECH & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reaction prevents further use of the vector or makes subsequent use less effective

Method used

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  • Methods for bladder cancer therapy using baculoviral vectors
  • Methods for bladder cancer therapy using baculoviral vectors
  • Methods for bladder cancer therapy using baculoviral vectors

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Embodiment 1

[0097] The use of insect baculovirus-based vectors for bladder cancer therapy was investigated. It was first shown that intravesically delivered baculoviral vectors can efficiently transduce normal mouse bladders. Among the three different baculovirus vectors tested, mammalian expression cassettes (comprising the human cytomegalovirus immediate early gene promoter, woodchuck hepatitis virus post-transcriptional regulatory elements, and A new recombinant baculoviral vector constructed from the long terminal repeat R segment and a portion of the U5 sequence of Leukemia virus provided the highest transduction efficiency in vivo. It was subsequently investigated whether viral transduction alone could stimulate anti-tumor immunity. By using the murine cytokine / chemokine antibody array to analyze bladder tissue extracts collected from mice receiving intravesical administration of baculovirus without any transgene, 59% of the proteins in the array (19 out of 32) A greater than 2-fo...

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Abstract

There is presently provided methods and uses relating to delivering a nucleic acid molecule to a bladder cell using a baculoviral vector. The bladder cell is contacted with a baculoviral vector, which may further comprise a transgene.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit of US Provisional Application No. 61 / 622,376, filed April 10, 2012, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to methods of treating or preventing bladder cancer using baculovirus vectors. Background of the invention [0004] Bladder cancer is the most common form of malignancy in the urethra. In the United States, 69,000 new cases and nearly 15,000 deaths are expected in 2011 (Siegel R et al., 2011). In Singapore, bladder cancer is the 9th most common cancer among men. [0005] Almost all bladder cancers arise from transformed epithelium and are therefore termed transitional cell carcinoma (TCC). Most bladder TCCs are superficial, nonmuscle invasive at initial diagnosis. However, the recurrence rate of superficial TCC after urethrectomy can be as high as 70%, and adjuvant therapy is necessary to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K31/7088A61K35/76A61P35/00C12N15/86A61K35/768A61K39/00
CPCC12N2710/14071C12N2830/60A61K35/768A61K2039/5256A61K2039/54C12N2710/14045C12N2710/14032A61K48/0075C07K14/70578A61K31/7028C12N2830/00C12N2740/14022C12N2830/008C12N15/86A61K2039/585C07K14/5443A61K31/185C07K14/70575C12N2830/48A61K2039/525C12N2710/14043A61P13/10A61P35/00A61K2300/00
Inventor 王朔吴春晓赵莹李幸慰
Owner AGENCY FOR SCI TECH & RES
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