JP2017522890A - 上皮増殖因子受容体遺伝子の細胞外ドメインiii内の変異 - Google Patents
上皮増殖因子受容体遺伝子の細胞外ドメインiii内の変異 Download PDFInfo
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- 125000000741 isoleucyl group Chemical group [H]N([H])C(C(C([H])([H])[H])C([H])([H])C([H])([H])[H])C(=O)O* 0.000 description 1
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Abstract
Description
X1SLKEISDGDVIIX4X5NX2
式中、X1はR及びCから選択され;
X4はS及びLから選択され;
X5はG及びRから選択され;
X2はK及びTから選択され;並びに
X1、X4、X5、及びX2の少なくとも1つは、それぞれC、L、R、又はTである。
X1SLKEISDGDVIISGNX2
式中、
X1はR及びCから選択され;
X2はK及びTから選択され;
X1がCである場合、X2は、K及びTから独立して選択され、X1がRである場合、X2はTである。
NLCYANTINWKKLFGTSGGKTKIIX3
(式中、X3はS及びRから選択される。)
caaagttttcagggatacattgtttttatattttcaccacatgatttttcttctctccaatgtagTGGTCAGTTTTCTCTTGCAGTCGTCAGCCTGAACATAACATCCTTGGGATTACGCTCCCTCAAGGAGATAAGTGATGGAGATGTGATAATTTCAGGAAACAAAAATTTGTGCTATGCAAATACAATAAACTGGAAAAAACTGTTTGGGACCTCCGGTCAGAAAACCAAAATTATAAGCAACAGAGGTGAAAACAGCTGCAgtaagtcaccgctttctgtttagtttatggagttggttctaatgggtcctttatttgtatttagaatattgaagggctattcccatttaa;
(式中、下線を引いたヌクレオチドは、一連のプライマーに対して同一(配列番号6に対して)又は相補的(配列番号7に対して)な配列に相当し、大文字はエクソン12に相当し、小文字はイントロン断片である)により表わされる。
- Mendelsohn J, Baselga J et al., "Epidermal growth factor receptor targeting in cancer". Semin Oncol - 2006, Vol. 33, pp.: 369-38.
- Lynch TJ et al., "Activating mutations in the epidermal growth factor receptor underlying responsiveness of non-small-cell lung cancer to gefitinib", N Engl J Med-2004, Vol. 350, pp:2129-2139.
- Misale et al., "Emergence of KRAS mutations and acquired resistance to anti-EGFR therapy in colorectal cancer", Nature - 2012, Vol. No. 486, pp.: 532-536.
- Montagut et al., "Identification of a mutation in the extracellular domain of the Epidermal Growth Factor Receptor conferring cetuximab resistance in colorectal cancer", Nature medicine - 2012, Vol. No. 18, pp.:221-223.
- Voigt et al., "Functional Dissection of the Epidermal Growth Factor Receptor Epitopes Targeted by Panitumumab and Cetuximab", Neoplasia- 2012, Vol. No. 14(11), pp.: 1023-1031.
- Karapetis et al., "K-ras Mutations and Benefit from Cetuximab in Advanced Colorectal Cancer", The New England Journal of Medicine - 2008, Vol. 359, pp.: 1757-1765.
- Eisenhauer et al., "New response evaluation criteria in solid tumours: revised RECIST guideline (version 1.1)", Eur J Cancer 2009, Vol. 45(2):228-247.
- Salido et al., "Increased ALK gene copy number and amplification are frequent in non-small cell lung cancer", J Thorac Oncol - 2011, Vol. No. 6, pp.:21-7.
- Diaz et al. "The molecular evolution of acquired resistance to targeted EGFR blockade in colorectal cancers", Nature-2012, Vol No. 486, pp.:537-40.
- Misale et al. "Blockade of egfr and mek intercepts heterogeneous mechanisms of acquired resistance to anti-egfr therapies in colorectal cancer", Sci Transl Med- 2014;6:224ra226.
Claims (18)
- 17〜100アミノ酸長を有し、以下の配列番号13の配列を含む、ペプチド配列:
X1SLKEISDGDVIIX4X5NX2
式中、
X1はR及びCから選択され;
X4はS及びLから選択され;
X5はG及びRから選択され;
X2はK及びTから選択され;並びに
X1、X4、X5、及びX2の少なくとも1つは、それぞれC、L、R、又はTである。 - 17〜100アミノ酸長を有し、以下の配列番号1の配列を含む、請求項1に記載のペプチド配列:
X1SLKEISDGDVIISGNX2
式中、
X1はR及びCから選択され;
X2はK及びTから選択され;並びに
X1がCである場合、X2は、K及びTから独立して選択され、X1がRである場合、X2はTである。 - 前記ペプチドが、更に以下の配列番号4の配列を含む、請求項1又は2に記載のペプチド:
NLCYANTINWKKLFGTSGGKTKIIX3
式中、
X3はS及びRから選択される。 - 以下の配列番号5の配列を含む、請求項1〜3のいずれか1項に記載のペプチド配列:
X1SLKEISDGDVIISGNX2NLCYANTINWKKLFGTSGGKTKIIX3
式中、
X1、X2、及びX3は請求項1及び2と同じ意味であり、
X1がCである場合、X2はK及びTから独立して選択され、X1がRである場合、X2はTである。 - 以下の配列番号14の配列を含む、請求項1〜3のいずれか1項に記載のペプチド配列:
X1SLKEISDGDVIIX4X5NX2NLCYANTINWKKLFGTSGGKTKIIX3
式中、
X1、X2及びX3、X4及びX5は請求項1、2及び3と同じ意味であり、
X1、X4、X5、及びX2の少なくとも1つは、それぞれC、L、R、又はTである。 - 配列番号1又は配列番号13をコードする配列を含むオリゴヌクレオチド。
- 配列番号4を更にコードする、請求項6に記載のオリゴヌクレオチド。
- 配列番号5又は配列番号14をコードする配列を含む、請求項6又は7に記載のオリゴヌクレオチド。
- 配列番号6(CAAAGTTTTCAGGGATACATTGTTTTT)及び配列番号7(TTAAATGGGAATAGCCCTTCAATATT)からなるプライマーセット。
- 請求項9に記載のプライマーセット及び/又は請求項6〜8のいずれか1項に記載のオリゴヌクレオチドを含むキット。
- 更に、KRAS及び/又はPIK3CA、及び/又はBRAF遺伝子の変異、及び/又はEGFR遺伝子内の追加の変異を検出するための試薬を含む、請求項10に記載のキット。
- 抗−EGFRモノクローナル抗体を含む治療レジメンに対する対象の応答性の予測に使用するための、請求項10又は11に記載のキット。
- 前記治療レジメンがセツキシマブ及び/又はパニツムマブを含む、請求項12に記載の使用のためのキット。
- インビトロで、セツキシマブ及び/又はパニツムマブを含む治療レジメンに対する対象の応答性を予測する方法であって、
(i)遺伝子型法、及び/又はタンパク質シークエンシング法からなる群から選択される手段によって、対象から得た試料において、配列番号2のヒトEGFRのコンセンサス野生型アミノ酸配列のアミノ酸450からアミノ酸470の断片である、配列番号12で定義される断片中に変異が存在するか存在しないかを決定し、
(ii)工程(i)において同定された任意の変異の存在を、セツキシマブを含む治療レジメンに対する対象の耐性と関連付けるか、又は工程(i)における変異の非存在を、パニツムマブを含む治療レジメンに対する対象の応答性と関連付けることを含む、方法。 - 工程(i)において、配列番号12中に以下の変異の少なくとも1つが存在するか存在しないかを決定する、請求項14に記載のインビトロでの方法:
配列番号2の451位におけるアルギニンのシステインへの変化;
配列番号2の464位におけるセリンのロイシンへの変異;
配列番号2の465位におけるグリシンのアルギニンへの変異;及び
配列番号2の467位におけるリシンのスレオニンへの変異。 - 工程(i)を、請求項9に記載のプライマーセット又は請求項10若しくは11に記載のキットを用いて実施する、請求項14又は15に記載のインビトロでの方法。
- 工程(i)が配列番号2に対応するアミノ酸配列の492位におけるアルギニンの存在又は非存在を決定することを更に含み、工程(ii)において、工程(i)において同定されたアルギニンの更なる存在を、セツキシマブを含む治療レジメンに対する対象の耐性と関連付ける、請求項14〜16のいずれか1項に記載のインビトロでの方法。
- 対象から得た試料中、配列番号2に対応するアミノ酸配列の451位におけるシステインの存在又は非存在;及び/又は配列番号2に対応するアミノ酸配列の464位におけるロイシンの存在又は非存在;及び/又は配列番号2に対応するアミノ酸配列の465位におけるアルギニンの存在又は非存在;及び/又は配列番号2に対応するアミノ酸配列の467位におけるスレオニンの存在又は非存在を同定するインビトロでの方法であって、配列番号2の少なくとも450位から470位の配列を決定することを含む、方法。
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US20210262037A1 (en) | 2021-08-26 |
EP3174896A1 (en) | 2017-06-07 |
BR112017001474A2 (pt) | 2018-02-20 |
CA2954952A1 (en) | 2016-02-04 |
CA2954952C (en) | 2023-05-23 |
CN106573967B (zh) | 2022-02-18 |
JP6905464B2 (ja) | 2021-07-21 |
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ES2693080T3 (es) | 2018-12-07 |
WO2016015788A1 (en) | 2016-02-04 |
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