lymphocytic leukemia

Umbralisib (TGR 1202) 是一种PI3Kδ抑制剂，IC50=22.2 nM，EC50=24.3 nM。它同时可抑制CK1ε，EC50=6.0 μM。

MP07-66 是 FTY720 的一种类似物，没有免疫抑制作用。MP07-66通过破坏 SET-PP2A 复合物导致PP2A 重新激活。MP07-66在慢性淋巴细胞白血病中显示出良好的抗肿瘤作用。

Ibrutinib (PCI-32765) 是一种布鲁顿酪氨酸激酶 (BTK) 抑制剂 (IC50=0.5 nM)，具有不可逆性和选择性。Ibrutinib 可以阻断 BTK 抑制 B 细胞的增殖和存活，具有抗肿瘤活性，可以用于治疗慢性淋巴细胞白血病等。

Lisaftoclax (Bcl-2 Bcl-xl inhibitor 1) 是一种双重 Bcl-2 和 Bcl-xl 抑制剂(IC50：2 nM 和 5.9 nM)，具有抗肿瘤活性。

GS-9901 是一种具有选择性、口服活性和高效性的 PI3Kδ 抑制剂（IC50：1 nM），可用于研究非霍奇金淋巴瘤和慢性淋巴细胞白血病。

Bcl-xL antagonist 2 是一种有效的选择性 Bcl-xL 拮抗剂，IC50 为 91 nM，Ki 为 65 nM。 Bcl-xL antagonist 2 可诱导癌细胞凋亡，可用于慢性淋巴细胞白血病和非霍奇金淋巴瘤的研究。

Cladribine (2CdA) 是一种嘌呤核苷类似物，是具有口服活性的腺苷脱氨酶抑制剂。它能作为 DNA 合成的抑制剂，可阻断受损 DNA 的修复。它可抑制 DNA 甲基化，具有抗淋巴瘤活性，可研究血液恶性肿瘤和多发性硬化。

Acalabrutinib (ACP-196) 是一种不可逆的、高效的、具有口服活性、选择性的第二代BTK 抑制剂。它与 BTK 的 ATP 结合口袋中的 Cys481 共价结合。它在慢性淋巴细胞性白血病 (CLL) 小鼠模型中显示出强大的靶向作用和功效。

Orelabrutinib (ICP-022) 是一种口服活性的、强效的、不可逆的 Bruton 酪氨酸激酶(BTK)抑制剂，具有潜在的抗肿瘤作用。它能够阻止 B 细胞抗原受体 (BCR) 信号通路的激活和 BTK 介导的下游生存通路的激活，抑制过度表达 BTK 的恶性 B 细胞的生长。

MT-802 是一种基于Cereblon 配体的、BTK 的降解剂，其 DC50=1 nM。它具有研究 C481S 突变型慢性淋巴细胞白血病的潜力。

8-Chloroadenosine (NSC-354258) 是一种 5' AMP 激活的蛋白激酶激动剂，可能用于治疗慢性淋巴细胞白血病。 它的活性与 mTOR 通路的抑制有关。它是一种核苷类似物。在体内代谢为 8-氯-ATP。在转录过程中掺入 RNA 并抑制 RNA 合成。在 MM.1S、RPMI-8226 和 U266 癌细胞系中表现出细胞毒性；在 A549 和 H1299 细胞中诱导 G2 M 细胞周期停滞和有丝分裂灾难。它已被证明可消耗 ATP 并抑制血液恶性肿瘤以及肺癌和乳腺癌细胞系中的肿瘤生长。

PROTAC BTK Degrader-10 (Example 1P) 是一种靶向BTK的PROTAC降解剂，用于慢性淋巴细胞白血病 (CLL) 的研究。(Pink: ligand for target protein; Black: linker; Blue: ligand for E3 ligase Cereblon)

Lonitoclax 是一种抑制 B 细胞淋巴瘤 2 (Bcl-2) 的化合物，其抗肿瘤效果在 B 细胞和髓系恶性肿瘤模型中与 Venetoclax 相当。Lonitoclax 有望用于研究复发或难治性慢性淋巴细胞白血病 (CLL)、小淋巴细胞淋巴瘤以及某些低级别淋巴瘤。

TAN 420E is a bacterial metabolite originally isolated from Streptomyces. It scavenges 2,2-diphenyl-1-picrylhydrazyl radicals in a cell-free assay (IC50 = 1.3 μM) and reduces thiobarbituric acid reactive substances (TBARS) in rat liver microsomes by 72% when used at a concentration of 100 μg/ml. TAN 420E is active against B. brevis, B. cereus, M. flavus, and S. aureus (MICs = 50-100 μg/ml). It is cytotoxic to P388 and KB lymphocytic leukemia cells (EC50s = 0.022 and 0.3 μg/ml, respectively).

High affinity XIAP antagonist (Kd = 16 nM for the BIR3 domain of XIAP). Exhibits cytotoxicity in a wide range of cancer cell lines in vitro (EC50 = 13 nM in MDA-MB-231 cells). Also displays antitumor activity in a mouse breast cancer xenograft model. Enhances TRAIL-induced apoptosis in chronic lymphocytic leukemia (CLL) cells. Oost et al (2004) Discovery of potent antagonists of the antiapoptotic protein XIAP for the treatment of cancer. J.Med.Chem. 47 4417 PMID:15317454 |Loeder et al (2009) A novel paradigm to trigger apoptosis in chronic lymphocytic leukemia. Cancer Res. 69 8977 PMID:19920200

Spleen tyrosine kinase (Syk) inhibitor (pIC50 = 7.5). Also inhibits phosphorylated Erk (pIC50 = 7.1). Decreases cell number and viability in chronic lymphocytic leukemia (CCL) cell lines. Liddle et al (2011) Discovery of GSK143, a highly potent, selective and orally efficacious spleen tyrosine kinase inhibitor. Bioorg.Med.Chem.Lett. 21 6188 PMID:21903390 |Varghese et al (2018) Highly selective SYK inhibitor, GSK143, abrogates survival signals in chronic lymphocytic leukaemia. Br.J.Haematol 182 927 PMID:28770560

Altemicidin is a monoterpene alkaloid originally isolated fromS. sioyaensiswith acaricidal and anticancer activities.1It is acaricidal to two-spotted spider mites (T. urticae) in a greenhouse pot test at concentrations of 10 and 100 ppm. Altemicidin inhibits the growth of murine L1210 lymphocytic leukemia and IMC carcinoma cells (IC50s = 0.84 and 0.82 μg ml, respectively). It is toxic to mice with an LD50value of 0.3 mg kg. 1.Takahashi, A., Kurasawa, S., Ikeda, D., et al.Altemicidin, a new acaricidal and antitumor substance. I. Taxonomy, fermentation, isolation and physico-chemical and biological propertiesJ. Antibiot. (Tokyo)42(11)1556-1561(1989)

Oxanosine is an analog of guanosine that has been found in S. capreolus and has diverse biological activities, including antibacterial, antiviral, and anticancer properties. It is active against a variety of bacteria, including S. flexneri, P. mirabilis, and E. coli (MICs = 6.25, 12.5, 25 µg ml, respectively, on peptone, but not nutrient, agar). Oxanosine inhibits replication of the HIV-1 strain IIIb in infected CEM and U937, but not H9, cells (EC50s = 7, 27, and >500 µg ml, respectively). It also inhibits the growth of HeLa human cervical cancer cells (IC50 = 32 µg ml) and reduces tumor growth in a murine L1210 lymphocytic leukemia model.

Amoorastatin is a natural product that has been studied in cancer research. Its derivative was found to significantly inhibit growth of the murine P388 lymphocytic leukemia cell lines.

CI-898 HCl is a lipophilic antifolate inhibitor of dihydrofolate reductase (DHFR). It has enhanced binding to DHFR in the presence of the cofactor NADPH. Cl-898 HCl inhibits cell growth and halts the cell cycle at the G1 S phase in L1210 mouse lymphocytic leukemia cells and is active against methotrexate-resistant cancer cell lines. It also enhances the activity of doxorubicin, cyclophosphamide, and 6-thioguanine (6-TG) in mice with advanced stage P338 leukemia.

3-Oxobetulin acetate is a derivative of the cholesterol biosynthesis inhibitor betulin. It inhibits the growth of P388 murine lymphocytic leukemia cells (EC50 = 0.12 µg ml), as well as human MCF-7 breast, SF-268 CNS, H460 lung, and KM20L2 colon cancer cells (GI50s = 8, 10.6, 5.2, and 12.7 µg ml, respectively), but not BxPC-3 pancreas or DU145 prostate cancer cells (GI50s = >10 µg ml for both). 3-Oxobetulin acetate inhibits replication of X4 tropic recombinant HIV (NL4.3-Ren) in MT-2 lymphoblastoid cells (IC50 = 13.4 µM). It is also active against L. donovani amastigotes when used at a concentration of 50 µM.

Umbralisib (TGR-1202) tosylate是一种口服有效、具有选择性的PI3Kδ和酪蛋白激酶-1-ε (CK1ε) 双重抑制剂，EC50值分别为22.2 nM和6.0 μM。该化合物针对慢性淋巴细胞白血病 (CLL) 中的T细胞显示出独特的免疫调节作用，适用于血液系统恶性肿瘤的研究。

Umbralisib (TGR-1202) sulfate 是一种口服有效、选择性的 PI3Kδ和 酪蛋白激酶-1-ε (CK1ε) 双抑制剂，其 EC50分别为 22.2 nM 和 6.0 μM。 Umbralisib sulfate 显示出对慢性淋巴细胞白血病 (CLL) T 细胞独特的免疫调节作用。Umbralisib sulfate 可用于血液系统恶性肿瘤的研究。

Lucatumumab (HCD122) 是一种全人源抗 CD40 单克隆抗体，具有抗肿瘤活性，可阻断 CD40L 与 CD40 的相互作用，抑制 CD40 CD40L 介导的信号通路，可用于研究慢性淋巴细胞白血病 (CLL) 和多发性骨髓瘤。