JP2023011701A - Cd40およびsting経路を活性化する遺伝子アジュバントの発現のためのウイルスベクター構築物 - Google Patents
Cd40およびsting経路を活性化する遺伝子アジュバントの発現のためのウイルスベクター構築物 Download PDFInfo
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Abstract
Description
(i)インビトロでHIV-1を発現するLMP1に感染したマクロファージは、IL-8、MIP-1ベータ、IL-1ベータ、IL-6、IL-12p70およびTNFアルファを含む免疫刺激性サイトカインを産生するように刺激される;
(ii)ヒト樹状細胞は、LMP1発現HIV-1による感染によりインビトロで刺激されて、IL-8、IL-1ベータ、TNF-アルファ、IL-6、およびIL-12p70を含む刺激性サイトカインを産生する;
(iii)ヒト樹状細胞は、LMP1を発現する単一サイクルSIV(scSIV)によって刺激されて、IL-8、IL1-ベータ、IL-6、IL-12p70およびTNFアルファを含む刺激性サイトカインを産生する;
(iv)免疫刺激性であることに加えて、HIV-1-LMP1およびscSIV-LMP1はまた、樹状細胞の抗原提示機能を増強してHIVおよびSIV抗原特異的T細胞の増殖を誘導することによってインビトロで自己アジュバント化する;
(v)HIV-LMPIは、CD40、CD80、およびCD83のような免疫学的に重要な細胞表面共刺激分子、ならびにCCR-7のような遊走シグナルをアップレギュレートするためにインビトロでDCおよびマクロファージを刺激する;そして
(vi)LMP1をコードするプラスミドと黒色腫特異的抗原(gp100)の混合物を2週間毎に3回筋肉内注射したマウスは腫瘍増殖から保護される。
1.抗原または抗原性エピトープをコードする第1の核酸配列、エプスタインバーウイルスの全長潜在性膜タンパク質1(LMP1)をコードする第2の核酸、および細胞質内ドメインがヒトIPS1またはSTING経路を活性化することができるその変異体で置換されている、LMP1の膜貫通部分を含む融合タンパク質をコードする第3の核酸配列を含むウイルスベクターであって、コドンであるベクターのコード配列がヒト発現のために最適化されており、そして第2と第3の核酸配列が、任意の順序で第1の核酸配列に続く。
本技術は、免疫療法用製品に使用するための遺伝子アジュバントの発現のためのウイルスベクター構築物、およびそのベクターの使用方法を提供する。ベクター構築物は、細胞性免疫応答を誘導および/または増強するために特に適している、がんまたは感染症に対するものなどの免疫応答の質および強度を改善することができる。本技術のベクター構築物は、発現によって促進されるCD40様経路の活性化によって媒介される特異的細胞性免疫応答の活性化およびEBVからのLMP1の細胞質内シグナル伝達ドメインの活性化の両方をもたらすので、免疫応答の増強において特に有効であり、STING経路の活性化を介した自然免疫応答の活性化は、LMP1-IPS1融合タンパク質の発現および活性化によって促進される。CD-40様経路またはSTING経路のいずれかの活性化は、細胞質内シグナル伝達ドメインを活性化するLMP1膜貫通ドメインのクラスター化によって媒介され得る。
配列番号1(SEQ ID NO:1):
ATGGATCTGGACCTGGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGAATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCACAGCGACGAACACCACCATGATGACAGCCTGCCTCATCCTCAGCAGGCCACCGACGATAGCAGCAACCAGAGCGACAGCAACAGCAACGAGGGCAGACATCTGCTGCTGGTGTCTGGTGCTGGCGACGGACCTCCTCTGTGTTCTCAAAATCTTGGCGCCCCTGGCGGCGGACCAAACAATGGACCTCAGGACCCCGACAACACCGACGACAATGGCCCTCAAGATCCTGATAATACCGATGACAACGGCCCACACGACCCTCTGCCTCAAGACCCAGATAACACAGACGATAACGGTCCACAAGATCCGGACAATACTGACGATAATGGACCCCACGATCCACTGCCTCACAACCCTAGCGATAGCGCCGGAAATGATGGCGGACCTCCACAGCTGACCGAGGAAGTGGAAAACAAAGGCGGAGATCAGGGCCCTCCTCTGATGACCGATGGCGGAGGTGGACACTCTCACGATTCTGGCCACGACGGCATCGACCCTCATCTGCCTACACTGCTGCTCGGCACATCTGGCTCTGGCGGCGACGATGATGATCCTCATGGACCTGTGCAGCTGAGCTACTACGAC
配列番号2(SEQ ID NO:2):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRHSDEHHHDDSLPHPQQATDDSSNQSDSNSNEGRHLLLVSGAGDGPPLCSQNLGAPGGGPNNGPQDPDNTDDNGPQDPDNTDDNGPHDPLPQDPDNTDDNGPQDPDNTDDNGPHDPLPHNPSDSAGNDGGPPQLTEEVENKGGDQGPPLMTDGGGGHSHDSGHDGIDPHLPTLLLGTSGSGGDDDDPHGPVQLSYYD
配列番号3(SEQ ID NO:3):
ATGGATCTGGATCTCGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGCATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGG
配列番号4(SEQ ID NO:4):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQR
DNA配列
配列番号5(SEQ ID NO:5):
ATGGATCTGGATCTCGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGCATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCCTTTCGCCGAGGACAAGACCTACAAGTACATCTGCCGGAACTTCAGCAACTTCTGCAACGTGGACGTGGTGGAAATTCTGCCCTACCTGCCTTGCCTGACCGCCAGAGATCAGGACAGACTGAGAGCCACATGTACCCTGAGCGGCAACAGAGACACACTGTGGCACCTGTTCAACACCCTGCAGAGAAGGCCTGGCTGGGTCGAGTACTTTATCGCCGCTCTGAGAGGCTGCGAGCTGGTCGATCTGGCTGATGAAGTGGCCAGCGTGTACCAGAGCTACCAGCCTAGAACCAGCGACCGGCCTCCTGATCCTCTCGAACCTCCATCTCTGCCCGCCGAAAGACCTGGACCTCCTACACCAGCTGCCGCTCACAGCATCCCTTACAACAGCTGCAGAGAGAAAGAACCTAGCTACCCCATGCCTGTGCAAGAGACACAGGCCCCAGAAAGCCCTGGCGAGAATAGCGAACAGGCTCTGCAGACACTGAGCCCCAGAGCCATTCCTAGAAACCCTGATGGCGGCCCTCTGGAAAGCTCTAGTGATCTGGCCGCTCTGTCCCCTCTGACAAGCTCTGGACACCAAGAGCAGGATACCGAGCTGGGCAGCACACATACAGCCGGCGCTACAAGCAGCCTGACACCTTCTAGAGGCCCCGTGTCTCCCAGCGTGTCATTTCAGCCTCTGGCCAGGTCTACCCCTAGGGCTTCTAGACTGCCTGGACCAACAGGCAGCGTGGTGTCTACCGGCACAAGCTTCAGCTCTAGCTCTCCTGGACTGGCTAGTGCCGGTGCCGCTGAGGGAAAACAAGGCGCCGAATCTGATCAGGCCGAGCCTATCATCTGTAGCAGCGGAGCAGAAGCCCCTGCCAATAGCCTGCCTAGCAAGGTGCCAACCACACTGATGCCCGTGAACACAGTGGCCCTGAAGGTGCCAGCTAATCCTGCCTCCGTGTCCACCGTGCCTTCTAAGCTGCCAACCAGCTCTAAGCCACCTGGCGCCGTGCCATCTAACGCCCTGACAAATCCTGCTCCAAGCAAGCTGCCCATCAACTCCACAAGAGCCGGCATGGTGCCCTCTAAGGTGCCCACATCTATGGTGCTGACCAAGGTGTCCGCCAGCACCGTGCCAACAGATGGCAGCTCCAGAAACGAGGAAACCCCTGCCGCTCCTACTCCTGCTGGCGCTACAGGCGGATCTTCTGCTTGGCTGGATAGCAGCAGCGAGAACAGAGGCCTGGGCAGCGAGCTTTCTAAACCTGGCGTGCTGGCTTCCCAGGTGGACAGCCCATTTTCCGGCTGCTTTGAGGACCTGGCTATCAGCGCCTCTACAAGCCTCGGCATGGGACCTTGTCACGGCCCCGAGGAAAACGAGTACAAGAGCGAGGGCACCTTCGGCATCCACGTGGCCGAGAATCCTAGCATCCAACTGCTGGAAGGCAACCCCGGACCTCCAGCTGATCCAGATGGCGGACCAAGACCTCAGGCCGACAGAAAGTTCCAAGAGCGCGAGGTGCCCTGCCACAGACCTTCTCCAGGTGCTCTGTGGCTGCAGGTTGCAGTGACAGGCGTCCTGGTGGTTACACTGCTCGTGGTCCTGTATAGACGGCGGCTGCAC
タンパク質配列
配列番号6(SEQ ID NO:6):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRPFAEDKTYKYICRNFSNFCNVDVVEILPYLPCLTARDQDRLRATCTLSGNRDTLWHLFNTLQRRPGWVEYFIAALRGCELVDLADEVASVYQSYQPRTSDRPPDPLEPPSLPAERPGPPTPAAAHSIPYNSCREKEPSYPMPVQETQAPESPGENSEQALQTLSPRAIPRNPDGGPLESSSDLAALSPLTSSGHQEQDTELGSTHTAGATSSLTPSRGPVSPSVSFQPLARSTPRASRLPGPTGSVVSTGTSFSSSSPGLASAGAAEGKQGAESDQAEPIICSSGAEAPANSLPSKVPTTLMPVNTVALKVPANPASVSTVPSKLPTSSKPPGAVPSNALTNPAPSKLPINSTRAGMVPSKVPTSMVLTKVSASTVPTDGSSRNEETPAAPTPAGATGGSSAWLDSSSENRGLGSELSKPGVLASQVDSPFSGCFEDLAISASTSLGMGPCHGPEENEYKSEGTFGIHVAENPSIQLLEGNPGPPADPDGGPRPQADRKFQEREVPCHRPSPGALWLQVAVTGVLVVTLLVVLYRRRLH
別の好ましいアジュバントは、その膜貫通領域を含まずに、ヒトIPS1のアミノ酸2-439と融合した、細胞質内領域を含まない、エプスタインバーウイルス由来のLMP1を含有する融合タンパク質LMP1(デルタIC)hIPS1(デルタTM)である。融合タンパク質において、ヒトIPS1の最初のアミノ酸(メチオニン)を取り除いた。融合タンパク質はヒトの使用ためにコドン最適化されている。この融合タンパク質のDNAおよびコードされているアミノ酸配列を以下に示す。
DNA配列
配列番号7(SEQ ID NO:7):
タンパク質配列
配列番号8(SEQ ID NO:8):
DNA配列
配列番号9(SEQ ID NO:9):
ATGGATCTGGATCTCGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGCATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCCTTTCGCCGAGGACAAGACCTACAAGTACATCTGCCGGAACTTCAGCAACTTCTGCAACGTGGACGTGGTGGAAATTCTGCCCTACCTGCCTTGCCTGACCGCCAGAGATCAGGACAGACTGAGAGCCACATGTACCCTGAGCGGCAACAGAGACACACTGTGGCACCTGTTCAACACCCTGCAGAGAAGGCCTGGCTGGGTCGAGTACTTTATCGCCGCTCTGAGAGGCTGCGAGCTGGTCGATCTGGCTGATGAAGTGGCCAGCGTGTACCAGAGCTACCAGCCTAGAACCAGCGACCGGGGCGAGAATAGCGAACAGGCTCTGCAGACACTGAGCCCCAGAGCCATTCCTAGAAACCCTGATGGCGGCCCTCTGGAAAGCTCTAGTGATCTGGCCGCTCTGTCCCCTCTGACAAGCTCTGGACACCAAGAGCAGGATACCGAGCTGGGCAGCACACATACAGCCGGCGCTACAAGCAGCCTGACACCTTCTAGAGGCCCCGTGTCTCCCAGCGTGTCATTTCAGCCTCTGGCCAGGTCTACCCCTAGGGCTTCTAGACTGCCTGGACCAACAGGCAGCGTGGTGTCTACCGGCACAAGCTTCAGCTCTAGCTCTCCTGGACTGGCTAGTGCCGGTGCCGCTGAGGGAAAACAAGGCGCCGAATCTGATCAGGCCGAGCCTATCATCTGTAGCAGCGGAGCAGAAGCCCCTGCCAATAGCCTGCCTAGCAAGGTGCCAACCACACTGATGCCCGTGAACACAGTGGCCCTGAAGGTGCCAGCTAATCCTGCCTCCGTGTCCACCGTGCCTTCTAAGCTGCCAACCAGCTCTAAGCCACCTGGCGCCGTGCCATCTAACGCCCTGACAAATCCTGCTCCAAGCAAGCTGCCCATCAACTCCACAAGAGCCGGCATGGTGCCCTCTAAGGTGCCCACATCTATGGTGCTGACCAAGGTGTCCGCCAGCACCGTGCCAACAGATGGCAGCTCCAGAAACGAGGAAACCCCTGCCGCTCCTACTCCTGCTGGCGCTACAGGCGGATCTTCTGCTTGGCTGGATAGCAGCAGCGAGAACAGAGGCCTGGGCAGCGAGCTTTCTAAACCTGGCGTGCTGGCTTCCCAGGTGGACAGCCCATTTTCCGGCTGCTTTGAGGACCTGGCTATCAGCGCCTCTACAAGCCTCGGCATGGGACCTTGTCACGGCCCCGAGGAAAACGAGTACAAGAGCGAGGGCACCTTCGGCATCCACGTGGCCGAGAATCCTAGCATCCAACTGCTGGAAGGCAACCCCGGACCTCCAGCTGATCCAGATGGCGGACCAAGACCTCAGGCCGACAGAAAGTTCCAAGAGCGCGAGGTGCCCTGCCACAGACCTTCTCCA
タンパク質配列
配列番号10(SEQ ID NO:10):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRPFAEDKTYKYICRNFSNFCNVDVVEILPYLPCLTARDQDRLRATCTLSGNRDTLWHLFNTLQRRPGWVEYFIAALRGCELVDLADEVASVYQSYQPRTSDRGENSEQALQTLSPRAIPRNPDGGPLESSSDLAALSPLTSSGHQEQDTELGSTHTAGATSSLTPSRGPVSPSVSFQPLARSTPRASRLPGPTGSVVSTGTSFSSSSPGLASAGAAEGKQGAESDQAEPIICSSGAEAPANSLPSKVPTTLMPVNTVALKVPANPASVSTVPSKLPTSSKPPGAVPSNALTNPAPSKLPINSTRAGMVPSKVPTSMVLTKVSASTVPTDGSSRNEETPAAPTPAGATGGSSAWLDSSSENRGLGSELSKPGVLASQVDSPFSGCFEDLAISASTSLGMGPCHGPEENEYKSEGTFGIHVAENPSIQLLEGNPGPPADPDGGPRPQADRKFQEREVPCHRPSP
DNA配列
配列番号11(SEQ ID NO:11):
ATGGATCTGGATCTCGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGCATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCCCAGCCCCAGACACTGCCCCGTGGAGAGAGAGCAGTTCAAGAGAGACGCCCAGCCCAGACCCGGCGGCGACCCCGACGCCCCCCCCGGCCCCAACGGCGAGCTGCTGCAGATCAGCCCCAACGAGGCCGTGCACATCGGCTTCACCGGCGAGAGCAAGTACGAGAACGAGGAGCCCGGCCACTGCCCCGGCATGGGCCTGAGCACCAGCGCCAGCATCGCCCTGGACGAGTTCTGCGGCAGCTTCCCCAGCGACGTGCAGAGCGCCCTGGTGGGCCCCAAGAGCCTGGAGAGCGGCCTGGGCAGAAACGAGAGCAGCAGCGACCTGTGGGCCAGCAGCGGCGGCACCGCCGGCGCCCCCACCCCCGCCGCCCCCACCGAGGAGAACAGAAGCAGCGGCGACACCCCCGTGACCAGCGCCAGCGTGAAGACCCTGGTGATGAGCACCCCCGTGAAGAGCCCCGTGATGGGCGCCAGAACCAGCAACATCCCCCTGAAGAGCCCCGCCCCCAACACCCTGGCCAACAGCCCCGTGGCCGGCCCCCCCAAGAGCAGCACCCCCCTGAAGAGCCCCGTGACCAGCGTGAGCGCCCCCAACGCCCCCGTGAAGCTGGCCGTGACCAACGTGCCCATGCTGACCACCCCCGTGAAGAGCCCCCTGAGCAACGCCCCCGCCGAGGCCGGCAGCAGCTGCATCATCCCCGAGGCCCAGGACAGCGAGGCCGGCCAGAAGGGCGAGGCCGCCGGCGCCAGCGCCCTGGGCCCCAGCAGCAGCAGCTTCAGCACCGGCACCAGCGTGGTGAGCGGCACCCCCGGCCCCCTGAGAAGCGCCAGACCCACCAGCAGAGCCCTGCCCCAGTTCAGCGTGAGCCCCAGCGTGCCCGGCAGAAGCCCCACCCTGAGCAGCACCGCCGGCGCCACCCACACCAGCGGCCTGGAGACCGACCAGGAGCAGCACGGCAGCAGCACCCTGCCCAGCCTGGCCGCCCTGGACAGCAGCAGCGAGCTGCCCGGCGGCGACCCCAACAGACCCATCGCCAGACCCAGCCTGACCCAGCTGGCCCAGGAGAGCAACGAGGGCCCCAGCGAGCCCGCCCAGACCGAGCAGGTGCCCATGCCCTACAGCCCCGAGAAGGAGAGATGCAGCAACTACCCCATCAGCCACGCCGCCGCCCCCACCCCCCCCGGCCCCAGAGAGGCCCCCCTGAGCCCCCCCGAGCTGCCCGACCCCCCCAGAGACAGCACCAGACCCCAGTACAGCCAGTACGTGAGCGCCGTGGAGGACGCCCTGGACGTGCTGGAGTGCGGCAGACTGGCCGCCATCTTCTACGAGGTGTGGGGCCCCAGAAGACAGCTGACCAACTTCCTGCACTGGCTGACCGACAGAAACGGCAGCCTGACCTGCACCGCCAGACTGAGAGACCAGGACAGAGCCACCCTGTGCCCCCTGTACCCCCTGATCGAGGTGGTGGACGTGAACTGCTTCAACAGCTTCAACAGATGCATCTACAAGTACACCAAGGACGAGGCCTTCCCCATG
タンパク質配列
配列番号12(SEQ ID NO:12):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRPSPRHCPVEREQFKRDAQPRPGGDPDAPPGPNGELLQISPNEAVHIGFTGESKYENEEPGHCPGMGLSTSASIALDEFCGSFPSDVQSALVGPKSLESGLGRNESSSDLWASSGGTAGAPTPAAPTEENRSSGDTPVTSASVKTLVMSTPVKSPVMGARTSNIPLKSPAPNTLANSPVAGPPKSSTPLKSPVTSVSAPNAPVKLAVTNVPMLTTPVKSPLSNAPAEAGSSCIIPEAQDSEAGQKGEAAGASALGPSSSSFSTGTSVVSGTPGPLRSARPTSRALPQFSVSPSVPGRSPTLSSTAGATHTSGLETDQEQHGSSTLPSLAALDSSSELPGGDPNRPIARPSLTQLAQESNEGPSEPAQTEQVPMPYSPEKERCSNYPISHAAAPTPPGPREAPLSPPELPDPPRDSTRPQYSQYVSAVEDALDVLECGRLAAIFYEVWGPRRQLTNFLHWLTDRNGSLTCTARLRDQDRATLCPLYPLIEVVDVNCFNSFNRCIYKYTKDEAFPM
DNA配列
配列番号13(SEQ ID NO:13):
タンパク質配列
配列番号14(SEQ ID NO:14):
配列番号13および14のハイライト箇所は、プロリン富裕ドメインを表す。
DNA配列
配列番号15(SEQ ID NO:15):
ATGGATCTGGACCTGGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGAATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCACAGCGACGAACACCACCATGATGACAGCCTGCCTCATCCTCAGCAGGCCACCGACGATAGCAGCAACCAGAGCGACAGCAACAGCAACGAGGGCAGACATCTGCTGCTGGTGTCTGGTGCTGGCGACGGACCTCCTCTGTGTTCTCAAAATCTTGGCGCCCCTGGCGGCGGACCAAACAATGGACCTCAGGACCCCGACAACACCGACGACAATGGCCCTCAAGATCCTGATAATACCGATGACAACGGCCCACACGACCCTCTGCCTCAAGACCCAGATAACACAGACGATAACGGTCCACAAGATCCGGACAATACTGACGATAATGGACCCCACGATCCACTGCCTCACAACCCTAGCGATAGCGCCGGAAATGATGGCGGACCTCCACAGCTGACCGAGGAAGTGGAAAACAAAGGCGGAGATCAGGGCCCTCCTCTGATGACCGATGGCGGAGGTGGACACTCTCACGATTCTGGCCACGACGGCATCGACCCTCATCTGCCTACACTGCTGCTCGGCACATCTGGCTCTGGCGGCGACGATGATGATCCTCATGGACCTGTGCAGCTGAGCTACTACGACCCTTTCGCCGAGGACAAGACCTACAAGTACATCTGCCGGAACTTCAGCAACTTCTGCAACGTGGACGTGGTGGAAATTCTGCCCTACCTGCCTTGCCTGACCGCCAGAGATCAGGACAGACTGAGAGCCACATGTACCCTGAGCGGCAACAGAGACACACTGTGGCACCTGTTCAACACCCTGCAGAGAAGGCCTGGCTGGGTCGAGTACTTTATCGCCGCTCTGAGAGGCTGCGAGCTGGTCGATCTGGCTGATGAAGTGGCCAGCGTGTACCAGAGCTACCAGCCTAGAACCAGCGACCGGGGCGAGAATAGCGAACAGGCTCTGCAGACACTGAGCCCCAGAGCCATTCCTAGAAACCCTGATGGCGGCCCTCTGGAAAGCTCTAGTGATCTGGCCGCTCTGTCCCCTCTGACAAGCTCTGGACACCAAGAGCAGGATACCGAGCTGGGCAGCACACATACAGCCGGCGCTACAAGCAGCCTGACACCTTCTAGAGGCCCCGTGTCTCCCAGCGTGTCATTTCAGCCTCTGGCCAGGTCTACCCCTAGGGCTTCTAGACTGCCTGGACCAACAGGCAGCGTGGTGTCTACCGGCACAAGCTTCAGCTCTAGCTCTCCTGGACTGGCTAGTGCCGGTGCCGCTGAGGGAAAACAAGGCGCCGAATCTGATCAGGCCGAGCCTATCATCTGTAGCAGCGGAGCAGAAGCCCCTGCCAATAGCCTGCCTAGCAAGGTGCCAACCACACTGATGCCCGTGAACACAGTGGCCCTGAAGGTGCCAGCTAATCCTGCCTCCGTGTCCACCGTGCCTTCTAAGCTGCCAACCAGCTCTAAGCCACCTGGCGCCGTGCCATCTAACGCCCTGACAAATCCTGCTCCAAGCAAGCTGCCCATCAACTCCACAAGAGCCGGCATGGTGCCCTCTAAGGTGCCCACATCTATGGTGCTGACCAAGGTGTCCGCCAGCACCGTGCCAACAGATGGCAGCTCCAGAAACGAGGAAACCCCTGCCGCTCCTACTCCTGCTGGCGCTACAGGCGGATCTTCTGCTTGGCTGGATAGCAGCAGCGAGAACAGAGGCCTGGGCAGCGAGCTTTCTAAACCTGGCGTGCTGGCTTCCCAGGTGGACAGCCCATTTTCCGGCTGCTTTGAGGACCTGGCTATCAGCGCCTCTACAAGCCTCGGCATGGGACCTTGTCACGGCCCCGAGGAAAACGAGTACAAGAGCGAGGGCACCTTCGGCATCCACGTGGCCGAGAATCCTAGCATCCAACTGCTGGAAGGCAACCCCGGACCTCCAGCTGATCCAGATGGCGGACCAAGACCTCAGGCCGACAGAAAGTTCCAAGAGCGCGAGGTGCCCTGCCACAGACCTTCTCCA
タンパク質配列
配列番号16(SEQ ID NO:16):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRHSDEHHHDDSLPHPQQATDDSSNQSDSNSNEGRHLLLVSGAGDGPPLCSQNLGAPGGGPNNGPQDPDNTDDNGPQDPDNTDDNGPHDPLPQDPDNTDDNGPQDPDNTDDNGPHDPLPHNPSDSAGNDGGPPQLTEEVENKGGDQGPPLMTDGGGGHSHDSGHDGIDPHLPTLLLGTSGSGGDDDDPHGPVQLSYYDPFAEDKTYKYICRNFSNFCNVDVVEILPYLPCLTARDQDRLRATCTLSGNRDTLWHLFNTLQRRPGWVEYFIAALRGCELVDLADEVASVYQSYQPRTSDRGENSEQALQTLSPRAIPRNPDGGPLESSSDLAALSPLTSSGHQEQDTELGSTHTAGATSSLTPSRGPVSPSVSFQPLARSTPRASRLPGPTGSVVSTGTSFSSSSPGLASAGAAEGKQGAESDQAEPIICSSGAEAPANSLPSKVPTTLMPVNTVALKVPANPASVSTVPSKLPTSSKPPGAVPSNALTNPAPSKLPINSTRAGMVPSKVPTSMVLTKVSASTVPTDGSSRNEETPAAPTPAGATGGSSAWLDSSSENRGLGSELSKPGVLASQVDSPFSGCFEDLAISASTSLGMGPCHGPEENEYKSEGTFGIHVAENPSIQLLEGNPGPPADPDGGPRPQADRKFQEREVPCHRPSP
DNA配列
配列番号17(SEQ ID NO:17):
タンパク質配列
配列番号18(SEQ ID NO:18):
配列番号17と18のハイライト箇所は、プロリン富裕ドメインを表す。
DNA配列
配列番号19(SEQ ID NO:19):
タンパク質配列
配列番号20(SEQ ID NO:20):
配列番号19と20のハイライト箇所は、プロリン富裕ドメインを表す。
DNA配列
配列番号21(SEQ ID NO:21):
ATGGATCTGGATCTCGAAAGAGGACCTCCTGGACCTAGACGGCCTCCTAGAGGACCACCTCTGAGCAGCTCTATTGGACTGGCCCTGCTGCTGCTTCTGCTGGCTCTGCTGTTCTGGCTGTACATCATCATGAGCAACTGGACCGGCGGAGCACTGCTGGTGCTGTATGCCTTTGCTCTGATGCTGGTCATCATCATCCTGATCATCTTCATCTTCCGGCGGGACCTGCTGTGTCCTCTGGGAGCACTTTGTCTGTTGCTGCTGATGATCACCCTCCTGCTGATCGCCCTGTGGAACCTGCATGGACAGGCCCTGTATCTGGGCATCGTGCTGTTCATCTTCGGCTGCCTGCTGGTTCTCGGCCTGTGGATCTACCTGCTGGAAATCCTTTGGAGACTGGGCGCCACCATCTGGCAGCTGCTGGCCTTTTTCCTGGCCTTCTTTCTGGATATCATCCTCCTCATCATTGCCCTGTACCTGCAGCAGAACTGGTGGACCCTGCTGGTGGATCTGCTTTGGCTGCTGCTCTTTCTGGCCATCCTGATTTGGATGTACTACCACGGCCAGCGGCCTTTCGCCGAGGACAAGACCTACAAGTACATCTGCCGGAACTTCAGCAACTTCTGCAACGTGGACGTGGTGGAAATTCTGCCCTACCTGCCTTGCCTGACCGCCAGAGATCAGGACAGACTGAGAGCCACATGTACCCTGAGCGGCAACAGAGACACACTGTGGCACCTGTTCAACACCCTGCAGAGAAGGCCTGGCTGGGTCGAGTACTTTATCGCCGCTCTGAGAGGCTGCGAGCTGGTCGATCTGGCTGATGAAGTGGCCAGCGTGTACCAGAGCTACCAGCCTAGAACCAGCGACCGGGGCGAGAATAGCGAACAGGCTCTGCAGACACTGAGCCCCAGAGCCATTCCTAGAAACCCTGATGGCGGCCCTCTGGAAAGCTCTAGTGATCTGGCCGCTCTGTCCCCTCTGACAAGCTCTGGACACCAAGAGCAGGATACCGAGCTGGGCAGCACACATACAGCCGGCGCTACAAGCAGCCTGACACCTTCTAGAGGCCCCGTGTCTCCCAGCGTGTCATTTCAGCCTCTGGCCAGGTCTACCCCTAGGGCTTCTAGACTGCCTGGACCAACAGGCAGCGTGGTGTCTACCGGCACAAGCTTCAGCTCTAGCTCTCCTGGACTGGCTAGTGCCGGTGCCGCTGAGGGAAAACAAGGCGCCGAATCTGATCAGGCCGAGCCTATCATCTGTAGCAGCGGAGCAGAAGCCCCTGCCAATAGCCTGCCTAGCAAGGTGCCAACCACACTGATGCCCGTGAACACAGTGGCCCTGAAGGTGCCAGCTAATCCTGCCTCCGTGTCCACCGTGCCTTCTAAGCTGCCAACCAGCTCTAAGCCACCTGGCGCCGTGCCATCTAACGCCCTGACAAATCCTGCTCCAAGCAAGCTGCCCATCAACTCCACAAGAGCCGGCATGGTGCCCTCTAAGGTGCCCACATCTATGGTGCTGACCAAGGTGTCCGCCAGCACCGTGCCAACAGATGGCAGCTCCAGAAACGAGGAAACCCCTGCCGCTCCTACTCCTGCTGGCGCTACAGGCGGATCTTCTGCTTGGCTGGATAGCAGCAGCGAGAACAGAGGCCTGGGCAGCGAGCTTTCTAAACCTGGCGTGCTGGCTTCCCAGGTGGACAGCCCATTTTCCGGCTGCTTTGAGGACCTGGCTATCAGCGCCTCTACAAGCCTCGGCATGGGACCTTGTCACGGCCCCGAGGAAAACGAGTACAAGAGCGAGGGCACCTTCGGCATCCACGTGGCCGAGAATCCTAGCATCCAACTGCTGGAAGGCAACCCCGGACCTCCAGCTGATCCAGATGGCGGACCAAGACCTCAGGCCGACAGAAAGTTCCAAGAGCGCGAGGTGCCCTGCCACAGACCTTCTCCACACAGCGACGAACACCACCATGATGACAGCCTGCCTCATCCTCAGCAGGCCACCGACGATAGCAGCAACCAGAGCGACAGCAACAGCAACGAGGGCAGACATCTGCTGCTGGTGTCTGGTGCTGGCGACGGACCTCCTCTGTGTTCTCAAAATCTTGGCGCCCCTGGCGGCGGACCAAACAATGGACCTCAGGACCCCGACAACACCGACGACAATGGCCCTCAAGATCCTGATAATACCGATGACAACGGCCCACACGACCCTCTGCCTCAAGACCCAGATAACACAGACGATAACGGTCCACAAGATCCGGACAATACTGACGATAATGGACCCCACGATCCACTGCCTCACAACCCTAGCGATAGCGCCGGAAATGATGGCGGACCTCCACAGCTGACCGAGGAAGTGGAAAACAAAGGCGGAGATCAGGGCCCTCCTCTGATGACCGATGGCGGAGGTGGACACTCTCACGATTCTGGCCACGACGGCATCGACCCTCATCTGCCTACACTGCTGCTCGGCACATCTGGCTCTGGCGGCGACGATGATGATCCTCATGGACCTGTGCAGCTGAGCTACTACGAC
タンパク質配列
配列番号22(SEQ ID NO:22):
MDLDLERGPPGPRRPPRGPPLSSSIGLALLLLLLALLFWLYIIMSNWTGGALLVLYAFALMLVIIILIIFIFRRDLLCPLGALCLLLLMITLLLIALWNLHGQALYLGIVLFIFGCLLVLGLWIYLLEILWRLGATIWQLLAFFLAFFLDIILLIIALYLQQNWWTLLVDLLWLLLFLAILIWMYYHGQRPFAEDKTYKYICRNFSNFCNVDVVEILPYLPCLTARDQDRLRATCTLSGNRDTLWHLFNTLQRRPGWVEYFIAALRGCELVDLADEVASVYQSYQPRTSDRGENSEQALQTLSPRAIPRNPDGGPLESSSDLAALSPLTSSGHQEQDTELGSTHTAGATSSLTPSRGPVSPSVSFQPLARSTPRASRLPGPTGSVVSTGTSFSSSSPGLASAGAAEGKQGAESDQAEPIICSSGAEAPANSLPSKVPTTLMPVNTVALKVPANPASVSTVPSKLPTSSKPPGAVPSNALTNPAPSKLPINSTRAGMVPSKVPTSMVLTKVSASTVPTDGSSRNEETPAAPTPAGATGGSSAWLDSSSENRGLGSELSKPGVLASQVDSPFSGCFEDLAISASTSLGMGPCHGPEENEYKSEGTFGIHVAENPSIQLLEGNPGPPADPDGGPRPQADRKFQEREVPCHRPSPHSDEHHHDDSLPHPQQATDDSSNQSDSNSNEGRHLLLVSGAGDGPPLCSQNLGAPGGGPNNGPQDPDNTDDNGPQDPDNTDDNGPHDPLPQDPDNTDDNGPQDPDNTDDNGPHDPLPHNPSDSAGNDGGPPQLTEEVENKGGDQGPPLMTDGGGGHSHDSGHDGIDPHLPTLLLGTSGSGGDDDDPHGPVQLSYYD
DNA配列
配列番号23(SEQ ID NO:23):
タンパク質配列
配列番号24(SEQ ID NO:24):
配列番号23と24のハイライト箇所は、プロリン富裕ドメインを表す。
二分子アジュバント戦略に従って、以下の要素を含有するベクターを構築した:(a)プロモーター、好ましくはヒトユビキチンプロモーター;(b)レポーター遺伝子(例えば緑色蛍光タンパク質)、あるいは単一の導入遺伝子中に融合した1つ以上の抗原;(c)IRESとそれに続く第1のアジュバント遺伝子(すなわち、LMP1またはLMP1 CO);(d)IRESとそれに続く第2のアジュバント遺伝子(すなわち、LMP1-IPS1融合タンパク質);および(e)場合により、IRESとそれに続く可溶性および分泌型免疫チェックポイント阻害剤または可溶性免疫モジュレータ分子をコードする1つ以上の遺伝子(例えば、図8A~8Cを参照)。一般に、配列は好ましくは上記の順序である(特に(c)と(d)の順序は逆にすることができる)が、遺伝子は他の適切な順序でベクター中に位置させることができる。上記の領域の全部ではないがいくつかを有する制御ベクターも構築された。
レンチウイルスベクターは、Nasriら(2014)に記載されているように、HEK 293T細胞株の一過性リン酸カルシウムトランスフェクションによって産生された。HEK 293T細胞を250mLの完全培地中の2チャンバーCell Stack(Corning)に1.6×108細胞で播種し、37℃で5%CO2の加湿雰囲気のインキュベーター内で24時間維持して接着させた。産生された各ベクターについて、1つの細胞スタックを以下のようにトランスフェクトさせた。レンチウイルス骨格プラスミド(235μg)、エンベロープコードプラスミド(47μg)、およびパッケージングプラスミド(235μg)を8.6mLの滅菌蒸留水および3.0mLのCaCl2と混合した。次いで、DNA混合物を、37℃の予め温めたHBS 2X(pH=7.1)12.1mLに一滴ずつ添加し、そして得られた24.2mLの沈殿物を、室温で30分間インキュベートした後に細胞の培地に添加した。トランスフェクトした細胞を37℃、5%CO2でインキュベートした。トランスフェクションの24時間後に培地を血清およびフェノールレッドを含まない210mLの回収培地と交換し、さらに24時間後にウイルス上清を回収し、2500rpmで5分間の遠心分離により清澄化した。回収した清澄化バルク(210mL)をMgCl2の存在下でDNase Iで30分間処理してあらゆる残留DNAを開裂し、22000rpm、4℃で1時間の遠心分離により濃縮した。ベクターペレットを70μlのトリス-トレハロース(50mM)に再懸濁し、1.5mLのマイクロチューブにプールし、50μLのアリコートに分け、凍結し、≦-70℃で保存した。
確かにより長いDNAカセットの存在のために、生産収率はGFPベクターと比較してアジュバント添加ベクターでは少し効果的ではなかった。しかしながら、全てのアジュバント添加構築物について、力価は少なくとも109TU/mLの範囲内であり、そして異なる生産キャンペーンの間で一貫して見出された。産業用バイオプロダクションに影響を与えるような問題は見られなかった。
新鮮なヒト樹状細胞およびマクロファージを健康なヒトドナー(白血球錐体)から密度勾配にわたって得た。CD14陽性単球を、磁気単離キット(ポジティブセレクション)を用いてPBMCから精製し、そして完全RPMI中で6ウェルプレートにプレーティングした。公表された方法を使用して、単球をGM-CSFおよびIL-4を用いてDCに分化させた。サイトカインを補充するために3日後に10%の培地交換を行い、そして細胞を非酵素的細胞解離溶液を用いて合計6日の培養後に回収した。次いでDCを完全RPMI+4μg/mlのポリブレン+レンチウイルス構築物(MOI 15にて)+ GM-CSFおよびIL-4中に再プレーティングした。2時間後、700μlの完全RPMI+GM-CSF/IL-4を添加し、細胞を合計96時間培養した。活性化マーカー発現の陽性対照として作用するために、追加の対照ウェルをIFN-γおよびLPSで96時間刺激した。
構築物1:GFP-IRES-LMP1(dIC)-IPS1(dTM)-LMP1(IC)
構築物2:GFP-IRES-LMP1(dIC)-IPS1(dTMdPro)-LMP1(IC)
構築物3:GFP-IRES-LMP1(dIC)-IPS1(dTMRev)-LMP1(IC)
構築物4:GFP-IRES-LMP1-IPS1(dTM)
構築物5:GFP-IRES-LMP1-IPS1(dTMdPro)
構築物6:GFP-IRES-LMP1-IPS1(dTMRev)
対照構築物1:GFP
対照構築物2:GFP-IRES-LMP1(dIC)
アジュバント構築物の説明については図8A-8B、対照構築物については図10参照。
実施例1の記載のとおり、発現カセットを含有する異なるウイルスベクターで健康なマウスが処置される。抗原およびアジュバント(すなわち、CD40LおよびSTING経路)を単独でまたは2回の投与後(プライム+ブースト)に一緒に発現させたときの免疫応答を比較するために実験を実施する。インビボの免疫原性の短期(3週間)および長期(3ヶ月)評価は、抗原特異的免疫細胞、例えばCD4+、CD8+、およびベクター中に存在する抗原を標的とするメモリーT細胞の検出および定量化を可能にするマウス血液バイオマーカー(IFN-γおよびさまざまなインターロイキン)のFACS分析によって行われる。抗原をコードする二重アジュバント化レンチウイルスベクターおよびLMP1-IPS1融合物での処置は、単一のアジュバント化レンチウイルスベクターと比較した場合、またはLMP1の膜ドメインのみを発現した場合に、特異的免疫原性を高めると予想される。
特定の腫瘍のマウスモデルを実施例1に記載のとおり発現カセットを含有するウイルスベクターで処置する。マウスをベクターの種類および構築物、用量および注射回数(プライム+ブースト注射)に従って異なる処置群に分ける。インビボでの有効性および免疫原性は、腫瘍増殖速度、生存、ならびにマウス血液バイオマーカー(IFN-γおよび種々のインターロイキン)のFACS分析によるCD4+、CD8+およびメモリーT細胞として特異的な抗原の検出によって評価される。兆候特異的な抗原をコードする二重アジュバント化レンチウイルスベクターは、全ての実験群の最も強力で長期にわたる免疫応答を誘導し、それにより処置群のマウスにおいてより高い生存率および/またはより低い腫瘍増殖を誘導すると予想される。
特定の腫瘍のマウスモデルは、実施例1に記載されているように発現カセットを含有するウイルスベクターおよび1つ以上の抗チェックポイント分子の可溶型および分泌型で処置される。マウスは、ベクター構築物、用量、および注射回数(プライム+ブースト注射)に従って異なる処置群に分けられる。インビボでの有効性および免疫原性は、腫瘍増殖速度、生存、ならびにマウス血液バイオマーカー(IFN-γおよび種々のインターロイキン)のFACS分析によるCD4+、CD8+およびメモリーT細胞として特異的な抗原の検出によって評価される。兆候に特異的な抗原および抗チェックポイント分子をコードする二重アジュバント化レンチウイルスベクターは、すべての実験群の中で最も強力で長期にわたる免疫応答を誘導すると予想される。
本明細書で使用されるとき、「から本質的になる」は、請求項の基本的かつ新規な特徴に実質的に影響を及ぼさない材料またはステップの包含を可能にする。特に組成物の成分の説明または装置の要素の説明における「含む」という用語の本明細書における任意の記載は、「から本質的になる」または「からなる」と交換することができる。
本発明を特定の好ましい実施態様に関連して説明したが、当業者であれば、前述の明細書を読んだ後に、本明細書に記載の組成物および方法に対してさまざまな変更、均等物の置換、および他の改変を行うことができる。
・Barry, M. et al. Role of endogenous endonucleases and tissue site in transfection and CpG-mediated immune activation after naked DNA injection(裸のDNA注射後のトランスフェクションおよびCpG媒介免疫活性化における内因性エンドヌクレアーゼおよび組織部位の役割)
・Hum Gene Ther, 10 (15) (1999), pp. 2461 - 2480
・McNamara, M. et al. RNA-Based Vaccines in Cancer Immunotherapy. J Immunol Res. 2015; 2015: 794528.
・Nasri et al., Production, Purification and Titration of a Lentivirus-Based Vector for Gene Delivery Purposes(遺伝子送達目的のためのレンチウイルスに基づくベクターの産生、精製および滴定), Cytotechnology 66,1031-8 (2014).
Claims (16)
- 抗原または抗原性エピトープをコードする第1の核酸配列、エプスタインバーウイルスの全長潜在膜タンパク質1(LMP1)をコードする第2の核酸配列、およびLMP1の膜貫通部分を含む融合タンパク質をコードする第3の核酸配列を含むウイルスベクターであって、前記ウイルスベクターにおいて、細胞質内ドメインがヒトIPS1またはSTING経路を活性化することができるその変異体で置換されており、ここで、前記ベクターのコードされた配列がヒト発現にコドン最適化されていて、前記第2および第3核酸配列は任意の順序で前記第1の核酸配列に続く、前記ウイルスベクター。
- 抗原または抗原性エピトープをコードする第1の核酸配列、ヒトIPS1の細胞質内ドメインまたはSTING経路を活性化することができるその変異体と融合しているエプスタインバーウイルスの全長潜在膜タンパク質1(LMP1)をコードする第2の核酸配列、またはヒトIPS1に融合したLMP1の膜貫通部分、またはSTING経路を活性化することができるその変異体を含む融合タンパク質をコードする前記第2の核酸配列を含むウイルスベクターであって、前記IPS1は、LMP1細胞質内ドメインと融合し、前記ベクターのコードされた配列は、ヒト発現のためにコドン最適化されている、前記ウイルスベクター。
- 前記ベクターが、レンチウイルスのベクターである、請求項1または2に記載のウイルスベクター。
- 前記第1の核酸配列が、2以上の抗原または2以上の抗原性エピトープを含む融合タンパク質をコードする、請求項1または2に記載のウイルスベクター。
- 前記第1の核酸配列が2以上の抗原または2以上の抗原性エピトープを含む融合タンパク質をコードする、請求項1または2に記載のウイルスベクター。
- 前記第2の核酸配列が、その膜貫通ドメインを欠くヒトIPS1の変異体に融合したLMP1の膜貫通部分をコードする、請求項2に記載のウイルスベクター。
- 前記第2の核酸配列が、その膜貫通ドメインを欠き、およびそのプロリン富裕のドメインを欠くヒトIPS1の変異体に融合したLMP1の膜貫通部分をコードする、請求項2に記載のウイルスベクター。
- 請求項1または2に記載の第2の核酸配列、または請求項1に記載の第3の核酸配列が、配列番号1、配列番号3、配列番号5、配列番号7、配列番号9、配列番号11、配列番号13、配列番号15、配列番号17、配列番号19、配列番号21ならびに配列番号23からなる群から選択される配列を含む、請求項1または2に記載のウイルスベクター。
- 前記ベクターが、可溶性免疫チェックポイント阻害剤分子、または可溶性免疫モジュレータ分子をコードする核酸配列を含む、請求項1または2に記載のウイルスベクター。
- 前記可溶性免疫チェックポイント阻害剤分子または可溶性免疫モジュレータ分子が、CTLA-4、PD-1、PDL-1、LAG-3、TIM 3、B7-H3、ICOS、IDO、4-1BB、CD47、B7-H4、OX-40、TIGIT、CD160、およびそれらの組合せからなる群から選択される、請求項9に記載のウイルスベクター。
- 前記ベクターがさらに機能性レンチウイルス・インテグラーゼタンパク質を含み、前記ベクターが自己不活性化である、請求項1または2に記載のウイルスベクター。
- 前記抗原が、NY-ESO-1,メソテリン,PSA、MART-1、MART-2、Gp100、チロシナーゼ、p53、ras、MUC1、SAP-1、サバイビン,CEA,Ep-CAM,Her2,BRCA1/2,gag,逆トランスクリプターゼ、tat、スポロゾイト周囲のタンパク質、HCV 非構造性タンパク質、ヘマグルチニンならびにそれらの組合せからなる群から選択される、請求項1または2に記載のウイルスベクター。
- 対象におけるがんまたは感染症を予防または処置するための免疫治療の処方物であって前記処方物が請求項1または2に記載のウイルスベクターを含む。
- 対象においてがんまたは感染症に対する免疫応答を誘導または増強する方法であって、前記方法はそれを必要とする対象に請求項1に記載のウイルスベクターまたは請求項13に記載の免疫療法処方物を投与することを含み、 それによって、前記がんまたは感染症に対する免疫応答が対象において誘導または増強される前記方法。
- 免疫応答ががんに対して誘導または増強され、そして前記がんが黒色腫、神経膠腫、前立腺がん、乳がん、子宮頸がん、結腸直腸がん、腎臓がん、肺がん、リンパ腫、膵臓がんからなる群から選択される、請求項14に記載の方法。
- 免疫応答が感染症に対して誘導または増強され、前記感染症が、HIV/AIDS、C型肝炎、HPV、肺炎、インフルエンザ、マラリア、リーシュマニア症、結核、ハンセン病、狂犬病、デング熱、ジカ、エボラ、および住血吸虫症からなる群から選択される、請求項14に記載の方法。
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