JP5574258B2 - 膵臓がん治療用の組成物 - Google Patents
膵臓がん治療用の組成物 Download PDFInfo
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- JP5574258B2 JP5574258B2 JP2009229503A JP2009229503A JP5574258B2 JP 5574258 B2 JP5574258 B2 JP 5574258B2 JP 2009229503 A JP2009229503 A JP 2009229503A JP 2009229503 A JP2009229503 A JP 2009229503A JP 5574258 B2 JP5574258 B2 JP 5574258B2
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- 206010061902 Pancreatic neoplasm Diseases 0.000 title claims description 54
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7088—Compounds having three or more nucleosides or nucleotides
- A61K31/713—Double-stranded nucleic acids or oligonucleotides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/18—Drugs for disorders of the alimentary tract or the digestive system for pancreatic disorders, e.g. pancreatic enzymes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
- C12N2310/111—Antisense spanning the whole gene, or a large part of it
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/14—Type of nucleic acid interfering N.A.
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Description
SON:
センス鎖-1: 5'-gcaucuagacguucuaugaug-3'(配列番号1)
アンチセンス鎖-1:5'-ucauagaacgucuagaugcua-3'(配列番号2)
センス鎖-2: 5'-gauucuuacaccgauucuuac-3'(配列番号3)
アンチセンス鎖-2:5'-aagaaucgguguaagaaucag-3'(配列番号4)
MCM5:
センス鎖: 5'-gaacucaagcggcauuacaac-3'(配列番号5)
アンチセンス鎖: 5'-uguaaugccgcuugaguucau-3'(配列番号6)
WDR5:
センス鎖: 5'-gaggccccuucagucuuguuc-3'(配列番号7)
アンチセンス鎖: 5'-acaagacugaaggggccucgc-3'(配列番号8)
PBK:
センス鎖: 5'-cugugauguaggagucucucu-3'(配列番号9)
アンチセンス鎖: 5'-agagacuccuacaucacagau-3'(配列番号10)
CENPA:
センス鎖: 5'-ggguauuuuuguaguuucuuu-3'(配列番号11)
アンチセンス鎖: 5'-agaaacuacaaaaauacccau-3'(配列番号12)
また、本願発明のsiRNAは、アンチセンス鎖として前記の配列番号2、4、6、8、10、12のそれぞれのヌクレオチド配列を含み、センス鎖は、アンチセンス鎖と略同一長であり、かつアンチセンス鎖とハイブリダイズするヌクレオチド配列を選択することができる。さらに、後記の実施例に示したように、短ヘアピン型RNA(shRNA)を発現するベクター(例えば、pSUPERベクター、Oligoengine)を用いて、前記のセンス鎖とアンチセンス鎖の各々5'側19塩基を含むshRNAとして発現させるようにしてもよい。shRNAは細胞内でプロセスされてsiRNAに変換される事が知られている。
(1)候補物質を、標的タンパク質と接触させる工程;
(2)標的タンパク質と候補物質との結合活性を検出する工程;および
(3)標的タンパク質へ結合する物質を選択する工程。
(1)候補物質を標的タンパク質と接触させる工程;
(2)標的タンパク質の生物学的活性を検出する工程;および
(3) 候補物質の非存在下で検出される標的タンパク質の生物学的活性と比較して、標的タンパク質の生物学的活性を抑制する物質を選択する工程、
を含む。
(1)標的遺伝子を発現する細胞に候補物質を接触させる工程;
(2)細胞の標的遺伝子発現レベルを測定する工程;および
(3)標的遺伝子の発現レベルを、対照と比較して低下させる物質を選択する工程、
を含む。
(1)標的遺伝子の転写制御領域の下流にレポーター遺伝子を連結した融合DNAを含むベクターを導入した細胞に候補物質を接触させる工程;
(2)レポーター遺伝子の発現を測定する工程;および
(3)レポーター遺伝子の発現を低下させる物質を選択する工程、
を含む。
ヒト膵臓がん細胞株MIA PaCa-2を5x103/wellの濃度で96-well plateに播き、10% fetal bovine serum 入りDulbecco's Modified Eagle Medium (DMEM+10% FBS) を用いて37°C, 5% CO2下で一晩培養した。翌日、以下のsiRNAをoligofectamine (Invitrogen)を用いて10、 50、100nMの濃度で導入した。導入方法の詳細はInvitrogen社の使用説明書に依った。
SONに対するsiRNA:センス鎖-1(配列番号1)とアンチセンス鎖-1(配列番号2)
MCM5に対するsiRNA:センス鎖(配列番号5)とアンチセンス鎖(配列番号6)
WDR5に対するsiRNA:センス鎖(配列番号7)とアンチセンス鎖(配列番号8)
PBKに対するsiRNA:センス鎖(配列番号9)とアンチセンス鎖(配列番号10)
CENPAに対するsiRNA:センス鎖(配列番号11)とアンチセンス鎖(配列番号12)
導入した細胞についてDMEM+10% FBSで5日間培養し、細胞増殖の程度を3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromideを用いた比色測定法(MTT法)により毎日計測した。
結果として図1に導入4日目の増殖程度を示す。いかなるヒト遺伝子に対しても相補的でない配列を持つsiRNA (Negative control)導入細胞と比較して、各siRNAを導入した細胞の増殖は有意に抑制された。
Claims (4)
- 膵臓がんを治療するための組成物であって、SON遺伝子の発現を抑制するアンチセンス核酸またはsiRNAの薬学的有効量を含み、膵臓がん細胞の増殖を抑制し、正常な膵臓細胞の増殖は抑制しないことを特徴とする膵臓がん治療用の組成物。
- 膵臓がん細胞の生存および造腫瘍性を阻害する請求項1の組成物。
- SON遺伝子の発現を抑制するsiRNAのセンス鎖が、配列番号1または3のヌクレオチド配列を含む請求項1または2の組成物。
- 膵臓がん治療薬の有効成分をスクリーニングする方法であって、SON遺伝子の発現レベルを低下させるか、または当該遺伝子がコードするタンパク質の生物活性を低下させる候補物質を目的物質として選択することを特徴とする方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009229503A JP5574258B2 (ja) | 2009-10-01 | 2009-10-01 | 膵臓がん治療用の組成物 |
US13/499,005 US8551971B2 (en) | 2009-10-01 | 2010-09-13 | Composition for treatment of pancreatic cancer |
EP10820339.9A EP2484385A4 (en) | 2009-10-01 | 2010-09-13 | COMPOSITION FOR THE TREATMENT OF PANCREATIC CANCER |
PCT/JP2010/065744 WO2011040220A1 (ja) | 2009-10-01 | 2010-09-13 | 膵臓がん治療用の組成物 |
CN201080044519XA CN102596256A (zh) | 2009-10-01 | 2010-09-13 | 胰脏癌治疗用组合物 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009229503A JP5574258B2 (ja) | 2009-10-01 | 2009-10-01 | 膵臓がん治療用の組成物 |
Publications (2)
Publication Number | Publication Date |
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JP2011074040A JP2011074040A (ja) | 2011-04-14 |
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US20140141015A1 (en) | 2010-09-20 | 2014-05-22 | Douglas Lake | QSOX1 as an Anti-Neoplastic Drug Target |
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