JP2006523083A5 - - Google Patents

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JP2006523083A5
JP2006523083A5 JP2004544846A JP2004544846A JP2006523083A5 JP 2006523083 A5 JP2006523083 A5 JP 2006523083A5 JP 2004544846 A JP2004544846 A JP 2004544846A JP 2004544846 A JP2004544846 A JP 2004544846A JP 2006523083 A5 JP2006523083 A5 JP 2006523083A5
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cells
abt2
fcs
rpmi
resuspended
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JP2004544846A
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JP4411472B2 (ja
JP2006523083A (ja
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Priority claimed from US10/269,711 external-priority patent/US20040071694A1/en
Priority claimed from US10/684,109 external-priority patent/US7396913B2/en
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Priority claimed from PCT/US2003/032243 external-priority patent/WO2004035603A2/en
Publication of JP2006523083A publication Critical patent/JP2006523083A/ja
Publication of JP2006523083A5 publication Critical patent/JP2006523083A5/ja
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プラズマ細胞の作製:先のアッセイにより該当免疫グロブリンを分泌するB細胞クローンを含むと同定された単一微量培養ウェルの内容物を回収した。100−1000μlピペットマンを使用し、37C RPMI(+10%FCS)を加えることによりウェルの内容物を回収した。細胞をピペッティングにより再懸濁した後に別の1.5mlエッペンドルフチューブに移した(最終容量500〜700μl)。細胞をマイクロ遠心機で1500rpm(240rcf)にて2分間室温で遠心した後、試験管を180°反転させ、再び2分間1500rpmで遠心した。凍結培地を吸引除去し、免疫細胞をRPMI(10%FCS)100μlに再懸濁した後、遠心した。RPMI(10%FCS)によるこの洗浄を繰返し、細胞をRPMI(FCS)60μlに再懸濁し、使用時まで氷上保存した。
プラークアッセイ結果:二次検出試薬単独(0/4)に比較してコーティングを検出するためにMAB307を使用して免疫蛍光顕微鏡測定によりコーティングを定性測定した処、非常に高品質(4/4)であることが判明した。ストレプトアビジンのみをコーティングした赤血球でMAB307抗体を使用した場合にはシグナルは検出されなかった(0/4)。次にこれらの赤血球を使用して表4に示す14個のウェルから抗原特異的プラズマ細胞を同定した。抗原特異的プラズマ細胞を回収する顕微操作後に、可変領域遺伝子をコードする遺伝子を単一プラズマ細胞でRT−PCRにより回収した。
発現。単一プラズマ細胞の単離後に、mRNAを抽出し、逆転写PCRを実施してcDNAを作製した。ポリメラーゼ連鎖反応を使用して重鎖及び軽鎖可変領域をコードするcDNAを特異的に増幅した。重鎖可変領域はIgG2発現ベクターにクローニングした。このベクターはヒトIgG2の定常領域をpcDNA3.1+/Hygro(Invitrogen,Burlington,ON)のマルチクローニング部位にクローニングすることにより作製した。軽鎖可変領域はIgK発現ベクターにクローニングした。このベクターはヒトIgKの定常領域をpcDNA3.1+/Neo(Invitrogen,Burlington,ON)のマルチクローニング部位にクローニングすることにより作製した。次に重鎖及び軽鎖発現ベクターの適当な対を70%コンフルエントヒト胚性腎293細胞の60mm皿にコリポフェクションし、トランスフェクト細胞に組換え抗体を24時間分泌させた。上清(3mL)をHEK293細胞から回収し、ヒトIgGを特異的に検出するサンドイッチELISAで無傷抗体(AB−ABT2−XG2−012及びAB−ABT2−XG2−198)の分泌を確認した(表5,第4列)。ELISAを使用して組換え抗体とビオチン化とEpoRの結合によりAB−ABT2−XG2−012とAB−ABT2−XG2−198の特異性を確認した(表5,第5列)。
JP2004544846A 2002-10-14 2003-10-14 エリスロポエチン受容体結合抗体 Expired - Fee Related JP4411472B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/269,711 US20040071694A1 (en) 2002-10-14 2002-10-14 Erythropoietin receptor binding antibodies
US10/684,109 US7396913B2 (en) 2002-10-14 2003-10-10 Erythropoietin receptor binding antibodies
PCT/US2003/032243 WO2004035603A2 (en) 2002-10-14 2003-10-14 Erythropoietin receptor binding antibodies

Related Child Applications (1)

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JP2009029449A Division JP2009149665A (ja) 2002-10-14 2009-02-12 エリスロポエチン受容体結合抗体

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JP2006523083A JP2006523083A (ja) 2006-10-12
JP2006523083A5 true JP2006523083A5 (ja) 2009-04-02
JP4411472B2 JP4411472B2 (ja) 2010-02-10

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JP2004544846A Expired - Fee Related JP4411472B2 (ja) 2002-10-14 2003-10-14 エリスロポエチン受容体結合抗体
JP2009029449A Pending JP2009149665A (ja) 2002-10-14 2009-02-12 エリスロポエチン受容体結合抗体

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EP (1) EP1578779A4 (ja)
JP (2) JP4411472B2 (ja)
KR (1) KR20050059263A (ja)
CN (1) CN103524618A (ja)
AU (2) AU2003282588B2 (ja)
BR (1) BR0315275A (ja)
CA (1) CA2501984C (ja)
MX (1) MXPA05003997A (ja)
NZ (1) NZ539263A (ja)
PL (1) PL379985A1 (ja)
TW (1) TWI320716B (ja)
WO (1) WO2004035603A2 (ja)
ZA (1) ZA201004902B (ja)

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