JP6316755B2 - Idh1r132h変異陽性がんを治療または診断する手段および方法 - Google Patents
Idh1r132h変異陽性がんを治療または診断する手段および方法 Download PDFInfo
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Description
a)アミノ酸118〜132に相当するアミノ酸からなる、アミノ酸配列(配列番号1);
b)アミノ酸120〜134に相当するアミノ酸からなる、アミノ酸配列(配列番号2);
c)アミノ酸122〜136に相当するアミノ酸からなる、アミノ酸配列(配列番号3);
d)アミノ酸124〜138に相当するアミノ酸からなる、アミノ酸配列(配列番号4);
e)アミノ酸126〜140に相当するアミノ酸からなる、アミノ酸配列(配列番号5);
f)アミノ酸128〜142に相当するアミノ酸からなる、アミノ酸配列(配列番号6);
g)アミノ酸130〜144に相当するアミノ酸からなる、アミノ酸配列(配列番号7);
h)アミノ酸132〜146に相当するアミノ酸からなる、アミノ酸配列(配列番号8);
i)アミノ酸123〜142に相当するアミノ酸からなる、アミノ酸配列(配列番号9)
からなる群から選択されるアミノ酸配列を含んでなり、またはそれから本質的になる。
a)R132H変異を有する変異IDH1の発現をもたらす変異を、少なくともいくつかのがん細胞のゲノム中に有することで特徴付けられるがんに罹患していることが疑われる対象の血液サンプルと、IDH1中で連続アミノ酸配列として存在する少なくとも10アミノ酸長を含んでなり、位置132に相当する位置でRからHへの少なくとも1つのアミノ酸交換を有するペプチドとを、免疫系構成要素のペプチドへの特異的結合を可能にする時間と条件下で接触させるステップと;
b)前記免疫系構成要素のペプチドへの結合が起きたかどうかを判定するステップと
を含んでなり、結合の出現が判定されれば、がんが診断される、
R132H変異を有する変異IDH1の発現をもたらす変異を、少なくともいくつかのがん細胞のゲノム中に有することで特徴付けられるがんを、診断する方法にも関する。
a)アミノ酸118〜132に相当するアミノ酸からなる、アミノ酸配列(配列番号1);
b)アミノ酸120〜134に相当するアミノ酸からなる、アミノ酸配列(配列番号2);
c)アミノ酸122〜136に相当するアミノ酸からなる、アミノ酸配列(配列番号3);
d)アミノ酸124〜138に相当するアミノ酸からなる、アミノ酸配列(配列番号4);
e)アミノ酸126〜140に相当するアミノ酸からなる、アミノ酸配列(配列番号5);
f)アミノ酸128〜142に相当するアミノ酸からなる、アミノ酸配列(配列番号6);
g)アミノ酸130〜144に相当するアミノ酸からなる、アミノ酸配列(配列番号7);および
h)アミノ酸132〜146に相当するアミノ酸からなる、アミノ酸配列(配列番号8)
からなる群から選択されるアミノ酸配列を含んでなる、10〜20アミノ酸長からなる。
a)アミノ酸118〜132に相当するアミノ酸からなる、アミノ酸配列(配列番号1);
b)アミノ酸120〜134に相当するアミノ酸からなる、アミノ酸配列(配列番号2);
c)アミノ酸122〜136に相当するアミノ酸からなる、アミノ酸配列(配列番号3);
d)アミノ酸124〜138に相当するアミノ酸からなる、アミノ酸配列(配列番号4);
e)アミノ酸126〜140に相当するアミノ酸からなる、アミノ酸配列(配列番号5);
f)アミノ酸128〜142に相当するアミノ酸からなる、アミノ酸配列(配列番号6);
g)アミノ酸130〜144に相当するアミノ酸からなる、アミノ酸配列(配列番号7);
h)アミノ酸132〜146に相当するアミノ酸からなる、アミノ酸配列(配列番号8);
i)アミノ酸123〜132に相当するアミノ酸からなる、アミノ酸配列(配列番号10);
j)アミノ酸124〜133に相当するアミノ酸からなる、アミノ酸配列(配列番号11);
k)アミノ酸125〜134に相当するアミノ酸からなる、アミノ酸配列(配列番号12);
l)アミノ酸126〜135に相当するアミノ酸からなる、アミノ酸配列(配列番号13);
m)アミノ酸127〜136に相当するアミノ酸からなる、アミノ酸配列(配列番号14);
n)アミノ酸128〜137に相当するアミノ酸からなる、アミノ酸配列(配列番号15);
o)アミノ酸129〜138に相当するアミノ酸からなる、アミノ酸配列(配列番号16);
p)アミノ酸130〜139に相当するアミノ酸からなる、アミノ酸配列(配列番号17);
q)アミノ酸131〜140に相当するアミノ酸からなる、アミノ酸配列(配列番号18);および
r)アミノ酸132〜141に相当するアミノ酸からなる、アミノ酸配列(配列番号19)
からなる群から選択されるアミノ酸配列を含んでなる、10〜20アミノ酸長からなる。
a)対象のサンプル中の免疫系構成要素を検出するように準備された、IDH1中で連続アミノ酸配列として存在する少なくとも8アミノ酸長を含んでなり、位置132に相当する位置でRからHへの少なくとも1つのアミノ酸交換を有するペプチドを含んでなる、分析ユニット;および
b)免疫系構成要素と前記ペプチドの特異的結合を検出でき、特異的結合が起きたか否かを示す出力シグナルを発生する検出器を含んでなる、評価ユニット
を含んでなる、R132H変異を有する変異IDH1の発現をもたらす変異を、少なくともいくつかのがん細胞のゲノム中に有することで特徴付けられるがんを、診断する装置にも関する。
マウスMHCクラスIおよびIIを欠いているが、ヒトA2およびDR1で遺伝子組換えされて、ヒトクラスIおよびクラスIIのコンテクストで抗原提示を模倣する、遺伝子組換えマウスにおいて、IDH1R132Hに対する末梢免疫応答を検査した。これらの実験(図2)は、IDH1R132Hペプチド123〜142、124〜138、または122〜136による免疫化と、様々な変異特異的ペプチドによる生体外再刺激後に、変異123〜142および122〜136ペプチドは免疫原性であるが、変異124〜138は免疫原性でないことを明らかにした。123〜142の特異的免疫原性は、ワクチン接種ヒト化マウスにおいて抗体応答を分析した際に、再現された。これらの実験は、免疫化後に、IDH1変異特異的抗体が産生されたことを示した(図3)。
IDH1R132H 123〜142の免疫原性はまた、IDH1R132H変異神経膠腫患者においても示され、天然CD4T細胞応答が検出され(図1)、IDH1R132H変異神経膠腫患者では天然IDHR132H特異的抗体が明白であったが、IDH1野生型神経膠腫の健常対照ではそうでなかった(図4)。これらの抗体は、エピトープ特異性がほとんど同じであり、122〜136および126〜140が好まれるようであった(図5)。
Claims (7)
- ヒトイソクエン酸デヒドロゲナーゼ1型(IDH1)のアミノ酸122〜136に相当するアミノ酸からなるアミノ酸配列(配列番号3)に示されるアミノ酸配列からなるペプチドであって、MHCクラスIIに結合するペプチドを含む、前記ペプチドを含むヒトイソクエン酸デヒドロゲナーゼ1型(IDH1)ポリペプチドを発現するがん細胞を含むがんの予防および/または治療に使用するための薬剤。
- 前記がんが、神経膠腫、急性骨髄性白血病、骨髄異形成症候群または胚芽異形成性神経上皮腫瘍である、請求項1に記載の薬剤。
- 請求項の1または2に記載の薬剤と薬学的に許容できる担体とを含んでなる薬剤。
- a)配列番号3に示されるアミノ酸配列からなるペプチドを持つがんに罹患していることが疑われる対象の血液サンプルと、配列番号3に示されるアミノ酸配列からなるペプチドとを、免疫系構成要素とペプチドの特異的結合を可能にする時間の条件下で接触させるステップと;
b)前記免疫系構成要素と配列番号3に示されるアミノ酸配列からなるペプチドとの結合が起きたかどうかを判定するステップと
を含んでなり、該結合の出現が、がんの指標となる、R132H変異を有する変異IDH1の発現をもたらす変異を、少なくともいくつかの腫瘍細胞中のゲノムに有することで特徴付けられるがんの診断を補助するデータを提供する方法。 - 前記免疫系構成要素が、血液サンプルに含まれる抗体である、請求項4に記載の方法。
- 前記がんが、神経膠腫であり、または、WHO IIまたはWHO III星細胞腫、乏突起膠腫、乏突起星細胞腫、膠芽細胞腫または神経膠肉腫であり、または急性骨髄性白血病、骨髄異形成症候群または胚芽異形成性神経上皮腫瘍である、請求項4または5に記載の方法。
- 請求項4〜6のいずれか一項に記載の方法を実施するための請求項1に記載の薬剤を含む、キットのがんの診断を補助するデータを提供するための使用。
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EA201491324A1 (ru) | 2015-03-31 |
WO2013102641A1 (en) | 2013-07-11 |
HK1203825A1 (en) | 2015-11-06 |
US20150023991A1 (en) | 2015-01-22 |
MX2014008306A (es) | 2015-03-03 |
CN105142662A (zh) | 2015-12-09 |
JP2015505246A (ja) | 2015-02-19 |
AU2013207191A1 (en) | 2014-07-03 |
MX349494B (es) | 2017-08-01 |
EP2800580A1 (en) | 2014-11-12 |
BR112014016612A2 (pt) | 2017-06-27 |
EP2800580B1 (en) | 2017-07-12 |
CA2859078A1 (en) | 2013-07-11 |
KR102055463B1 (ko) | 2019-12-12 |
KR20140120324A (ko) | 2014-10-13 |
SG11201403877PA (en) | 2014-09-26 |
ES2642184T3 (es) | 2017-11-15 |
CN105142662B (zh) | 2017-07-07 |
US10161940B2 (en) | 2018-12-25 |
AU2013207191B2 (en) | 2017-10-26 |
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