CN111035641B - Gzd824及其药学上可接受的盐在治疗疾病中的新应用 - Google Patents
Gzd824及其药学上可接受的盐在治疗疾病中的新应用 Download PDFInfo
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- CN111035641B CN111035641B CN201811184991.8A CN201811184991A CN111035641B CN 111035641 B CN111035641 B CN 111035641B CN 201811184991 A CN201811184991 A CN 201811184991A CN 111035641 B CN111035641 B CN 111035641B
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- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/496—Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
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- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明提供了GZD824及其药学上可接受的盐在治疗疾病中的新应用,即3‑((1H‑吡唑[3,4‑b]吡啶‑5‑取代)乙炔基)‑4‑甲基‑N‑(4‑((4‑甲基哌嗪‑1‑取代)甲基)‑3‑(三氟甲基)苯基)苯甲酰胺(GZD824)及其药学上可接受的盐在制备疾病中的新应用应用,该疾病为急性髓细胞性白血病。特别GZD824及其药学上可接受的盐对FLT3‑ITD融合表达和/或FGFR1OP2‑FGFR1融合表达的或Quizartinib耐药的急性髓细胞性白血病具有很好的治疗作用。
Description
技术领域
本发明属于医药生物领域,涉及GZD824及其药学上可接受的盐在治疗疾病中的新应用,具体是涉及3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺(即GZD824)及其药学上可接受的盐的在治疗疾病中的新的应用。
背景技术
急性髓细胞性白血病(Acute myeloid leukemia,AML)是髓系造血干细胞恶性疾病。2016年美国有新增AML病人19,950个,死亡人数高达10,430人,占到白血病死亡人数的一半。我国流行病学调查显示,年轻人中患病率为2-3/10万,70岁以上患病率为13-15/10万(中国细胞生物学学报,2015,37(2):299-308)。
FLT3(Fms-like tyrosine kinase 3,也叫Flk2)即FMS样酪氨酸激酶3,属于PDGFR(the platelet growth factor receptor)家族一员,属于III型受体酪氨酸激酶。FLT3在血液干细胞的增值和分化等方面起着重要的调节作用。在急性髓细胞白血病(AML)中,发现FLT3的活化突变或者过度表达(Heinrich Mini-Reviews in Medicinal Chemistry(2004)4(3):255-271,Kiyoi et al.Int J Hemato(2005)82:85-92)。
正常生理状态下,FLT3(FMS-like tyrosine kinase 3)与其配体FL结合后二聚化,进而活化下游信号蛋白如AKT,MAPK等,在造血细胞等增殖、分化中发挥重要作用。Nakao等研究人发现在高达30%的急性髓细胞性白血病患者中存在FLT3-ITD突变,随后Yamamoto等人于发现约有7%的急性髓细胞性白血病患者存在FLT3-TKD激活突变(以D835Y最常见)。FLT3突变引起非配体依赖下游信号通路持续激活,进而促进细胞的恶性增殖和抗凋亡等导致AML的发生(Stem Cell Investig.2017,4:48;.Int J Hematol.2013,97(6):683-94)。
FLT3-ITD突变能够作为AML患者预后判断的独立指标。在儿童AML患者中,发现16.5%的患者带有FLT3-ITD突变,治疗后的缓解率只有40%,并且8年无事件生存率(EFS)仅为7%;而非FLT3-ITD的突变的患者得缓解率高达70%,8年无事件生存率(EFS)为44%。同样成人患者中高达27%的患者是ITD阳性突变,其无病生存期(DFS)、EFS、总体存活率(OS)均较非突变患者低(Blood,2001,98:1752-1759;Blood,2008,11l(10).4930-4933)。
2017年,第一个一代FLT3抑制剂Midostaurin(PKC412,诺华制药)被FDA批准上市,其他非选择性的一代FLT3抑制剂还有Lestaurtinib、Sunitinb、Sorafetinib等。二代选择性FLT3抑制剂Quizartinib(AC-220)、Gilteritinib(ASP2215)正处于临床研究阶段,用于治疗FLT3-ITD突变阳性急性髓细胞性白血病及经一线治疗(合并造血干细胞移植HSCT)后病情复发或难治性AML患者的治疗。(Cells.2018,7(1).pii:E4;Am J Hematol.2018,93(2):213-221;Journal of Medicinal Chemistry,2018,61(9):3855-3869.)。
此外,FGFR1OP2-FGFR1融合表达也被证实与AML的发病、预后、治疗密切相关,FGFR抑制剂能够有效抑制FGFR1OP2-FGFR1的AML细胞的增殖(Haematologica.2016,101(3):e91-4;Haematologica.2013,98(1):103-6.)。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺(化学结构式本发明代称为GZD824)是一类l三代小分子Bcr-Ab抑制剂,可以有效治疗慢性粒细胞白血病,尤其是对伊马替尼耐药的白血病患者具有较好的治疗效果(J Med Chem.2013,56(3):879-94),以及可以治疗前体B细胞急性淋巴细胞白血病。
但是,3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺(代称为GZD824)能否对急性髓细胞性白血病具有很好的疗效作用,目前并不清楚。
发明内容
基于此,本发明的目的之一提供一种GZD824及其药学上可接受的盐在治疗疾病中的新应用,即3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺(代称为GZD824)及其药学上可接受的盐的在治疗疾病中的新的应用。
实现上述目的的技术方案如下。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗急性髓细胞性白血病的药物中的应用。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗FLT3-ITD融合表达的急性髓细胞性白血病的药物中的应用。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗FGFR1OP2-FGFR1融合表达的急性髓细胞性白血病的药物中的应用。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗FLT3-ITD融合表达和FGFR1OP2-FGFR1融合表达的急性髓细胞性白血病的药物中的应用。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗Quizartinib耐药的急性髓细胞性白血病的药物中的应用。
本发明经过发明人的长期实验,创造性发现GZD824可以用于治疗急性髓性白血病,特别是通过靶向FLT3及FGFR蛋白激酶,应用于治疗FLT3和/或FGFR1异常的急性髓细胞性白血病以及Quizartinib耐药的急性髓细胞性白血病,将具有很好的疗效。
附图说明
图1是GZD824对二代FLT3抑制剂耐药细胞MV4-11-QR的抗增殖活性的结果示意图。
图2是GZD824对AML细胞FLT3及FGFR1信号通路的影响的结果示意图。
图3是GZD824对MV4-11细胞周期和凋亡的影响的结果示意图。
图4是GZD824对MV4-11体内移植瘤生长的抑制作用的结果示意图。
具体实施方式
为了便于理解本发明,下面将对本发明进行更全面的描述。本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
下列实施例中未注明具体条件的实验方法,通常按照常规条件,或按照制造厂商所建议的条件。实施例中所用到的各种常用化学试剂,均为市售产品。
除非另有定义,本发明所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不用于限制本发明。本发明所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
经过本发明的发明人的反复实验发现,GZD824具有FLT3及FGFR激酶抑制活性,体外有效抑制FLT3-ITD突变及FGFR1OP2-FGFR1突变的AML细胞增殖,并阻断AML细胞FLT3及FGFR信号通路,诱导AML细胞G0/G1周期阻滞和凋亡的作用;体内研究发现GZD824能够有效抑制AML细胞移植瘤的生长,具有较好的抗肿瘤作用。
本发明化合物的药学上可接受的盐包括通过本发明化合物和无机或有机酸反应形成的本发明化合物的常规无毒盐。例如,常规的无毒盐包括无机酸例如盐酸、氢溴酸、硫酸、氨基磺酸、磷酸、硝酸等的盐,也包括有机酸例如乙酸、丙酸、琥珀酸、乙醇酸、硬脂酸、乳酸、苹果酸、酒石酸、柠檬酸、抗坏血酸、扑酸、马来酸、羟基马来酸、苯乙酸、谷氨酸、苯甲酸、水杨酸、对氨基苯磺酸、2一乙酰氧基一苯甲酸、富马酸、甲苯磺酸、甲磺酸、乙烷二磺酸、草酸、羟乙基磺酸、三氟乙酸等制备的盐。Berg等,"Pharmaceutical Salts,"J.Pharm,Sci.'1977:66:1—19更详细描述了上文所述药学上可接受的盐及其它典型的药学上可接受的盐的制备。
3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺,以下简称GZD824,其按照现有方法进行合成得到或者购买。
实施例1 GZD824对FLT3及FGFR1等激酶的抑制活性
利用已经建立的基于FRET(荧光共振能量转移)的体外激酶筛选方法(J MedChem.2013,56(3):879-94),研究GZD824及其对照药物Quizartinib对FLT3、FGFR1、等激酶的体外抑制活性,使用GrapPad5.0计算其半数抑制浓度(IC50)。
结果显示,GZD824具有FLT3及FGFR抑制活性,其FLT3及FGFR的活性分别为1.33±0.074、4.14±0.96nM,其中FLT3活性与选择性FLT3抑制剂Quizartinib相当。并且GZD824对FLT3-D835Y突变激酶的活性为223.8±55.6nM,而Quizartinib的活性为6486±1669nM。这说明GZD828可以对二代FLT3抑制剂Quizartinib的耐药突变有一定作用。
具体数据见表1。
表.1化合物的激酶抑制剂活性
AV±SD(nM) | FLT3-WT | FLT3-D835Y | FGFR1 | FGFR2 | FGFR3 | FGFR4 |
GZD824 | 1.33±0.074 | 223.8±55.6 | 4.14±0.96 | 2.77±0.082 | 8.10±0.15 | 30.27±21.66 |
Quizartinib | 5.95±1.89 | 6486±1669 | >10000 | >10000 | >10000 | >10000 |
Gilteritinib | 13.32±0.13 | 3.71±1.36 | >1000 | >1000 | >1000 | >1000 |
实施例2 GZD824对AML细胞的增殖抑制活性
本实验使用的细胞MV4-11(FLT3-ITD融合表达的急性髓细胞性白血病细胞系)、KG1(FGFR1OP2-FGFR1融合表达的急性髓细胞性白血病细胞系)及HL60、NB4(FLT3及FGFR野生型白血病细胞系)等白血病细胞系,均来自ATCC或者中国科学院典型培养物保藏委员会细胞库。MV4-11-QR细胞是由我们实验室使用二代FLT3抑制剂Quizartinib诱导MV4-11细胞获得的Quizartinib耐药细胞。3000-10000个上述细胞接种到96孔板中,然后加入不同浓度的GZD824(0-3μM)连续处理72小时。然后加入CCK8试剂,继续孵育1-3小时,接着用超级酶标仪测定其在450nm及650nm的吸光值。使用GrapPad5.0计算其半数抑制浓度(IC50)。
具体数据见表2和图1。
表2化合物对白血病细胞的增殖抑制活性
实施例3 GZD824对AML细胞FLT3信号通路的影响
蛋白质免疫印迹法研究GZD824对AML细胞信号通路的影响。将合适细胞浓度(1-2X106个/孔)的MV4-11FLT3-ITD或者HL60FLT3-WT等细胞接种到6孔板,用不同浓度的GZD824(0、0.8、4、20、100、500nM)处理细胞6小时,用SDS裂解液(CST推荐)裂解并抽提蛋白。进行SDS-PAGE电泳,转膜,一抗过夜,二抗室温2小时,然后使用ECL试剂盒显影。FLT3(3462)、pFLT3(3664)AKT(#4685S)、pAKT(#13038,#4060)、ERK1/2(#4695)、pERK1/2(#4370)、STAT5(9363)、pSTAT5(9359)等抗体购买自CST(Boston,MA,USA),二抗购买自life公司。
结果表明GZD824在4nM水平即可抑制MV4-11细胞中FLT3及其下游信号通路蛋白如STAT5、ERK、AKT的活化,并且表现出良好的剂量依赖性。具体结果见图2。
实施例4 GZD824对AML细胞FGFR信号通路的影响
蛋白质免疫印迹法研究GZD824对AML细胞信号通路的影响。将合适细胞浓度(1-2X106个/孔)的KG1FGFR1OP2-FGFR1或者HL60FGFR-WT等细胞接种到6孔板,用不同浓度的GZD824(0、0.8、4、20、100、500nM)处理细胞6小时,用SDS裂解液(CST推荐)裂解并抽提蛋白。进行SDS-PAGE电泳,转膜,一抗过夜,二抗室温2小时,然后使用ECL试剂盒显影。FGFR、FRS、FLCγ及其磷酸化抗体购买自CST,二抗购买自life公司。
结果表明GZD824在20nM水平即可抑制KG1细胞中FGFR及其下游信号通路的活化,并且表现出良好的剂量依赖性。具体结果见图2。
实施例5 GZD824诱导AML细胞周期阻滞
不同浓度的GZD824(0、4、20、100nM)处理MV4-11细胞,分别于24、48小时后,按照细胞周期试剂盒步骤处理后,用流式细胞仪检测细胞周期。结果发现,GZD824可剂量依赖性和时间依赖性的诱导MV4-11细胞G0/G1阻滞。结果参见图3。
实施例6 GZD824诱导AML细胞凋亡
不同浓度的GZD824(0、4、20、100nM)处理MV4-11细胞,分别于24、48小时后,按照凋亡试剂盒(ANNEXIN V,PI)检测细胞凋亡。结果发现,GZD824可剂量依赖性和时间依赖性的诱导MV4-11细胞发生凋亡。结果见图3。
实施例7 GZD824体内抑制AML移植瘤的生长
将5X106个MV4-11FLT3-ITD细胞悬液(Matrigel:培养基,1:1)接种到SCID小鼠右前腋部皮下,待瘤体积长到100-200mm3时分组给药,以瘤体积曲线、瘤重等为指标,研究GZD824体内抗肿瘤作用。
结果发现GZD824在20mg/kg,po,q2d条件下基本可以完全消除MV4-11移植瘤的生长(图4),并且没有产生明显的肝肾毒性(表.3)。
表.3 GZD824对MV4-11移植瘤模型动物肝肾生化功能的影响
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (1)
1.3-((1H-吡唑[3,4-b]吡啶-5-取代)乙炔基)-4-甲基-N-(4-((4-甲基哌嗪-1-取代)甲基)-3-(三氟甲基)苯基)苯甲酰胺及其药学上可接受的盐在制备治疗急性髓细胞性白血病的药物中的应用;
所述急性髓细胞性白血病为FLT3-ITD融合表达的急性髓细胞性白血病、FGFR1OP2-FGFR1融合表达的急性髓细胞性白血病或者FLT3-ITD融合表达和FGFR1OP2-FGFR1融合表达的急性髓细胞性白血病。
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