Apoptose

<p>Tubulin inhibitor 14 blocks NQO2 and microtubule formation, disrupts blood vessels, and may target tumors; IC50 of 1.0 μM.</p>

<p>GLUT-1-IN-4 (Compound 13) is an inhibitor of the GLUT-1 glucose transporter that depends on the p53 protein. It suppresses the proliferation of various cancer cells at submicromolar IC50 levels. Additionally, GLUT-1-IN-4 can halt the cell cycle, induce oxidative stress, and promote apoptosis (cell death).</p>

Antitumor Agent-184 (compound 12aa) triggers apoptosis in various cell lines, exhibiting IC50 values of 2.35 μM in B16-F10 cells, 7.32 μM in 4T1 cells, and 10.31 μM in CT26 cells.

<p>MA242 is a nuclear factor of activated T cells 1 (NFAT1) for Pancreatic Cancer Therapy and dual inhibitor of murine double minute 2 (MDM2).</p>

<p>Tubulin inhibitor 41 (Compd D19) is a promising lead compound for glioblastoma treatment, known for its ability to penetrate the blood-brain barrier (BBB). It functions as a tubulin inhibitor, inducing G2/M phase arrest, leading to cell apoptosis, and inhibiting the migration of U87 cells [1].</p>

<p>NSC308848 is an effective apoptosis (cell death) inducer that operates in a Myc-dependent manner. It acts by inhibiting Myc transactivation and disrupting the DNA binding activity of Myc family proteins.</p>

<p>VEGFR-2-IN-18 is a potent VEGFR-2 inhibitor with a 60 nM IC50, promoting cell apoptosis and anticancer effects.</p>

<p>Compound 3 (DOR agonist 2) acts as a Delta Opioid Receptor agonist. It inhibits the expression of TNF-α, obstructs NF-κB transportation to the nucleus, and activates the G protein-mediated ERK1/2 pathway. This compound is useful for research into neurodegenerative diseases.</p>

<p>Lometrexol hydrate, an antipurine antifolate, inhibits GARFT and purine synthesis, leading to cancer cell apoptosis without causing DNA breaks.</p>

<p>4-Hydroxyresveratrol (3,4,5,4'-Tetrahydroxystibene) is a resveratrol analog that variably induces the expression of pro-apoptotic genes such as p53 and Bax. It triggers apoptosis in SV40 virus-transformed WI38 cells (WI38VA), but not in WI38 cells. Additionally, 4-Hydroxyresveratrol significantly increases the expression of p53, GADD45, and Bax genes in WI38VA cells, while suppressing the expression of the bcl-2 gene.</p>

<p>Mcl-1 Inhibitor 9 (Example 2) is a potent inhibitor of myeloid cell leukemia 1 (Mcl-1), demonstrating anti-tumor activity with an IC50 value of 0.21889 nM.</p>

<p>PD-1/PD-L1-IN-16 is a potent inhibitor of PD-1/PD-L1 (IC50: 53.2 nM) and has shown research potential for tumour immunotherapy.</p>

<p>Multi-kinase-IN-1, a powerful kinase inhibitor, exhibits antitumor properties by inducing cell apoptosis.</p>

<p>RIPK1-IN-14 inhibits RIPK1 with 92 nM IC50 and reduces necrotic apoptosis in U937 cells.</p>

<p>Antiproliferative agent-63 (compound 4d) is a cyclic analog of cannabidiol that acts as an anticancer agent. It demonstrates favorable activity against breast and colorectal cancer. Moreover, this compound can arrest the cell cycle in the G1 phase and induce apoptosis through the mitochondrial pathway in breast cancer cell lines.</p>

<p>TLBC, a borane-chalcone derivative, exhibits dose-dependent inhibitory effects across various glioma cell lines with IC50 values ranging from 5.5 to 25.5 μM. TLBC induces apoptosis independently of alterations in the tumor suppressor factor p53.</p>

<p>SphK1-IN-2: SphK1 inhibitor, IC50: 19.81 nM; less effective on SphK2. Induces apoptosis, hinders cancer cell growth.</p>

<p>ZLHQ-5f inhibits CDK2/Topo I, with IC50 of 0.145μM for CDK2/CycA2, and promotes apoptosis by arresting HCT116 cells in S phase.</p>

<p>SMIP34 is an inhibitor of PELP1, binding to this target with a dissociation constant (Kd) of 37.4 μM. It demonstrates efficacy in inhibiting the proliferation of cancer cells and tumor progression. Specifically, SMIP34 is effective in breast cancer research, showing activity against wild-type (WT), mutant (MT) estrogen receptor-positive (ER+), and treatment-resistant (TR)-ER+ breast cancers.</p>

<p>D-Cl-amidine hydrochloride is a potent and highly selective inhibitor of PAD1. It exhibits excellent tolerance and does not induce significant toxicity [1].</p>

<p>Anticancer agent 53 exhibits potent in vitro cytotoxicity, triggers apoptosis, halts S/G2/M cycle, and has antitumor effects without toxicity.</p>

<p>Antitumor agent-78 blocks GPx-4, raises COX2, triggers apoptosis, halts EMT, and stifles cancer cell growth and migration.</p>

<p>Soquelitinib (CPI-818) is a selective ITK inhibitor， inhibits tumor growth,T-cell, up-regulatCXCR3, IFNγ, TNFα, and CD107a expression in normal CD8 cells.</p>

<p>Verrucarin A, a mycotoxin from Myrothecium verrucaria, inhibits protein synthesis, leukemia growth, and triggers apoptosis.</p>

<p>CDK4/6-IN-10: Oral CDK4 (IC50: 22 nM) &amp; CDK6 (IC50: 10 nM) inhibitor with anti-cancer potential for MM research.</p>

<p>EGFR-IN-45: Strong EGFR/CDK2 inhibitor (IC50s: 0.4 &amp; 1.6 μM), halts cancer cell cycle pre-G1, prompts apoptosis, also targets Topo I/II.</p>

<p>Compound 5f, a potent tubulin polymerization inhibitor (IC50 = 1.09 μM), blocks cell migration, tube formation, and has anti-angiogenic effects.</p>

<p>GRP78-IN-1 binds to GRP78 protein, inhibits cell growth, and triggers apoptosis in breast cancer; has -8.07 kcal/mol binding energy.</p>

<p>EGFR-IN-47: strong oral EGFRL858R/T790M/C797S blocker, induces cell death; promising for NSCLC research. IC50: 0.01 μM.</p>

<p>Ph-Ph+ is a dimerized phenanthroline derivative with antitumor, antibacterial, and antifungal effects.</p>

<p>HSP90-IN-10 is a potent HSP90 inhibitor, targeting HCC1954 cells (IC50: 6 μM) and inducing apoptosis, sparing normal cells.</p>

<p>PIM1-IN-3 (HL8) selectively blocks PIM1, induces Colo320 cell apoptosis, and may be researched for cancer.</p>

<p>PDEδ/NAMPT IN-1 (Compound 17d) is a dual inhibitor targeting phosphodiesterase 6 (PDE6) with a dissociation constant (KD) of 0.410 nM and nicotinamide phosphoribosyltransferase (NAMPT) with an inhibitory concentration (IC50) of 2.21 nM. It disrupts KRAS-related signaling by inhibiting NAMPT's role in the synthesis of nicotinamide adenine dinucleotide (NAD+), consequently inducing apoptosis in pancreatic cancer cells with KRAS mutations. This compound holds potential for research in KRAS-mutant pancreatic cancer.</p>

<p>Tubulin inhibitor 13 (E27), IC50 16.1 μM, blocks tubulin polymerization, cancer cell migration, and invasion, induces apoptosis.</p>

<p>XPO1-IN-1: an oral MM.1S cell inhibitor (IC50: 24 nM), induces apoptosis, stable metabolism, good pharmacokinetics.</p>

<p>HER2-IN-11 is a psoralen derivative that induces apoptosis. HER2-IN-11 shows light-activated cytotoxicity and also exhibits anti-breast cancer activity [1].</p>

<p>p53 Activator 14 (Compound 7A) is a derivative of Neratinib that can induce DNA damage and activate p53, thereby inhibiting the proliferation of various cancer cells, with an IC50 of 7.21 μM for HCT116 cells. This compound hinders adhesion, migration, and invasion of HCT116 cells, disrupts the cell cycle, and triggers apoptosis. In addition, p53 Activator 14 exhibits anti-tumor properties and inhibits angiogenesis in the chick embryo chorioallantoic membrane (CAM) model.</p>

<p>eIF4E-IN-4 (Compound 33) is a selective inhibitor of the eukaryotic initiation factor 4E (eIF4E) with a biochemical activity value of 95 nM. It inhibits cap-dependent mRNA translation with an IC50 of 2.5 μM and is applicable in research on breast cancer, colon cancer, and head and neck cancer.</p>

<p>Top/HDAC-IN-2 (45b) is a dual inhibitor of Top and HDAC that induces apoptosis and exhibits significant anti-tumour effects.</p>

<p>Sinulatumolin E, a terpenoid, inhibits TNF-α (IC 50: 3.6 μM); has anti-inflammatory properties.</p>

<p>TP-030-2 is a RIPK1 inhibitor (human K i =0.43 nM ; mouse IC 50 =100 nM) .</p>

<p>GPX4-IN-3 (26a) is a potent GPX4 inhibitor, inducing selective ferroptosis with 71.7% inhibition at 1 μM.</p>

<p>eIF4A3-IN-4 is a novel inhibitor of eIF4A (IC50: 8.6 μM).</p>

Topo II/HDAC-IN-1 (7d) demonstrates potent dual inhibitory effects on Topo II and HDAC, while Topo II/HDAC-IN-1 (8d) effectively induces apoptosis [1].

<p>Necrosis Inhibitor 3 (compound B3) effectively inhibits necrosis, demonstrating an IC50 of 0.29 nM in HT29 cells [1].</p>

<p>GQN-B37-E is an effective selective binder and inhibitor of MCL-1. It binds to the BH3-binding domain of MCL-1. GQN-B37-E demonstrates binding affinity for MCL-1 within the sub-micromolar range (Ki= 0.6 μM), yet shows negligible binding to BCL-2 or BCL-XL.</p>

<p>Lepidozin G blocks cancer growth (IC50=4.2-5.7μM) and triggers apoptosis in PC-3 cells via mitochondria.</p>

<p>LA-CB1 is a derivative of Abemaciclib that targets CDK4/6 and promotes their degradation via the ubiquitin-proteasome pathway, thereby blocking the CDK4/6-Cyclin D1-Rb-E2F axis and inducing G0/G1 cell cycle arrest and apoptosis (Apoptosis). It demonstrates antiproliferative activity against MDA-MB-231 cells with an IC50 of 0.27 µM and effectively inhibits epithelial-mesenchymal transition, cell migration, invasion, and angiogenesis. In highly invasive models like triple-negative breast cancer (TNBC), LA-CB1 significantly suppresses tumor growth, showing robust dose-dependent antitumor activity. This compound can be utilized in breast cancer research.</p>

<p>mTOR/HDAC6-IN-1 inhibits HDAC6 (IC50: 56 nM) &amp; mTOR (IC50: 133.7 nM), may treat TNBC by inducing autophagy and apoptosis.</p>

<p>Flizasertib is a serine/threonine kinase inhibitor that acts by inhibiting RIPK1, which has anti-inflammatory and therapeutic effects on immune disorders.</p>

<p>MLKL-IN-6 (compound P28) is a mixed lineage kinase inhibitor that specifically targets the Mixed Lineage Kinase domain-like (MLKL) protein.</p>

<p>S100A2-p53-IN-1 inhibits S100A2-p53 in pancreatic cancer, stunting MiaPaCa-2 cell growth at 1.2-3.4 μM.</p>

<p>PI3K-IN-35 (6l) selectively inhibits PI3K-α, β, δ (IC50: 13.98, 7.22, 10.94 μM), blocks G2/M phase, induces apoptosis, and is useful in leukemia research.</p>

<p>Tubulin polymerization-IN-3 is a potent inhibitor of microtubulin polymerization (IC50: 3.84 μM) and induces apoptosis in colon cancer cells.</p>

<p>XSJ05, a derivative of camptothecin (CPT), exhibits anti-cancer activity by inhibiting topoisomerase I (Topo I). This compound induces DNA double-strand breaks, leading to DNA damage. Furthermore, XSJ05 stifles the growth of colorectal cancer (CRC), halts the cell cycle in the G2/M phase, and induces apoptosis.</p>

<p>NiCur is an effective and selective inhibitor of CBP histone acetyltransferase (HAT), with an IC50 of 0.35 μM.</p>

<p>TI17 is a selective TRIP13 inhibitor with anticancer activity and inhibits proliferation of multiple myeloma (MM) cells</p>

<p>DWP-05195 is a TRPV1 antagonist capable of inhibiting pain signal transduction. Additionally, it induces ER stress-dependent apoptosis in human ovarian cancer cells via the ROS-p38-CHOP pathway.</p>

<p>CDK-IN-9: A potent CDK inhibitor, gels to enhance CDK12/DDB1 binding, targets CDK2/E (IC50: 4 nM), induces apoptosis via dephosphorylation.</p>

<p>CRI9 effectively inhibits the c-MET/PI3K/Akt/mTOR axis, suppressing the proliferation of hepatocellular carcinoma (HCC) cells. This compound exhibits potent cytotoxicity against HCC cells and induces apoptosis.</p>

<p>PAK4-IN-5 (Compound 12i) is a potent inhibitor of PAK4 (IC50: PAK4 at 7.68 nM, PAK1 at 1872.01 nM) that forms stable interactions with the PAK4 enzyme. This compound effectively inhibits the proliferation and migration potential of MDA-MB-231 cells by hindering the phosphorylation of PAK4 and LIMK1. Additionally, PAK4-IN-5 arrests the cell cycle in the G0/G1 phase, induces apoptosis, and prompts the production of reactive oxygen species. The LD50 in mice is greater than 500 mg/kg (oral).</p>

<p>CB-184 is a selective ligand for sigma-2 (σ2) receptors, with Ki values of 7436 nM for sigma-1 (σ1) and 13.4 nM for sigma-2 (σ2), and it promotes apoptosis with antitumor activity.</p>

<p>MTDH-SND1 blocker 2 (compound C19) is an effective MTDH-SND1 inhibitor with an IC50 value of 487 nM. It binds to the SND1 protein with a Kd of 279 nM and can degrade the SND1 protein. Additionally, MTDH-SND1 blocker 2 exhibits antiproliferative activity and induces apoptosis, showing potential for breast cancer research.</p>

<p>T0080 is an FPR-1 antagonist. It reduces apoptosis (Apoptosis) and inhibits the production of reactive oxygen species (ROS) and pro-inflammatory cytokines (TNF-α and IL-1β) in plaque macrophages within ApoE−/− mouse models, thereby slowing the progression of atherosclerosis.</p>

<p>GI-Y2 is a GSDMD inhibitor that suppresses macrophage pyroptosis induced by oxidized low-density lipoprotein (ox-LDL). In vivo, GI-Y2 dose-dependently reduces atherosclerotic plaques and decreases lesion size and fibrosis in the aortic root of ApoE-/- mice. GI-Y2 holds potential for research in pyroptosis and cardiovascular diseases, such as atherosclerosis.</p>

<p>GGTI298 is a potent GGTase I inhibitor; IC50 3μM for Rap1A, &gt;20μM for Ha-Ras.</p>

<p>Antitumor agent-72 (compound 6w) is a potent anticancer agent that exhibits its anticancer activity by inducing apoptosis via caspase-3 activation and PARP</p>

<p>HDAC-IN-34 inhibits HDAC1 (IC50: 0.022 μM) &amp; HDAC6 (IC50: 0.45 μM), binds DNA causing damage, and halts HCT-116 cell growth (IC50: 1.41 μM).</p>

<p>K20 selectively inhibits KRas G12C (IC50: 1.16 nM), shows anticancer activity in H358 cells (IC50: 0.78 μM), and induces apoptosis via Erk dephosphorylation.</p>

<p>Rezatapopt (PC14586) is a p53 reactivator with antitumor activity for the study of locally advanced or metastatic solid tumors.</p>

<p>TFCP2L1-IN-1 is a TFCP2L1 transcription factor inhibitor that regulates cell proliferation and promotes antitumor effect of Sorafenib by STAT3/NANOG pathway.</p>

<p>Ivaltinostat (CG-200745) is an oral panHDAC inhibitor, inducing apoptosis and enhancing cancer drug sensitivity.</p>

<p>PI4KIII beta inhibitor 4 (Compound 16) is a selective inhibitor of PI4KIIIβ with an IC50 of 0.005 μM. By inhibiting the PI3K/AKT pathway, PI4KIII beta inhibitor 4 induces apoptosis, causes cell cycle arrest, and triggers autophagy in tumor cells. This compound is applicable for tumor research.</p>

<p>PARP/NAMPT-IN-1 (Compound 13j) is a dual-target inhibitor of PARP and NAMPT, with IC50 values of 0.8 nM for PARP1 and 18 nM for NAMPT. It suppresses breast cancer cell proliferation and migration, inducing apoptosis. PARP/NAMPT-IN-1 is applicable for research on triple-negative breast cancer.</p>

<p>VEGFR-2-IN-13 (Compound 19a) is a potent VEGFR-2 inhibitor (IC50: 3.4 nM). vEGFR-2-IN-13 arrests the HepG2 cell cycle in G2/M phase and induces apoptosis.</p>

<p>Topo II/HDAC-IN-2 (8d) demonstrates remarkable dual inhibitory effects on Topo II and HDAC, and also induces apoptosis [1].</p>

NDs-IN-1 (Compound 3g) is a novel non-covalent multi-target inhibitor that inhibits the activities of key enzymes such as hBACE-1, hAChE, and hMAO-B, and is primarily used in the study of neurodegenerative diseases [1].

<p>WYJ-2, a selective agonist for toll-like receptor 2/1 (TLR2/1), demonstrates an EC50 of 18.57 nM in HEK 293T cells transiently co-transfected with human TLR2 and TLR1. It induces pyroptosis and has shown anticancer activity against non-small cell lung cancer (NSCLC) [1].</p>

<p>ASP9831 is an orally active PDE4 inhibitor. It suppresses LPS-induced TNF-α production and exhibits anti-inflammatory properties. ASP9831 is useful in the study of steatohepatitis.</p>

Z-VA-DL-D-FMK (Z-VA-DL-D(OH)-FMK) acts as an inhibitor of caspases. It irreversibly binds to caspases, enhancing the sensitivity to TNF-α and stimulating HIV replication in infected T cells ACH-2.

<p>Fluvastatin (XU 62-320) sodium monohydrate, a fully synthetic competitive HMG-CoA reductase inhibitor, features an IC 50 of 8 nM. This compound also safeguards vascular smooth muscle cells from oxidative stress via the Nrf2-dependent antioxidant pathway [1] [2].</p>

<p>Compound 2c is a potent p38α MAPK inhibitor with antitumor effects, enhancing apoptosis and ROS.</p>

<p>ASK1-IN-7 (Compound 4c) is an ASK1 inhibitor and a derivative of the ASK1 inhibitor scaffold 5-(5-Phenyl-furan-2-ylmethylene)-2-thioxo-thiazolidin-4-one. This compound is potentially applicable in research involving ASK1 signaling pathways, including studies on cellular stress response, inflammatory response, neurodegenerative diseases, and cardiovascular diseases.</p>

<p>GP130-IN-1 (compound 49) is an effective inhibitor of GP130, demonstrating significant in vitro anti-tumor activity and higher selectivity compared to Bazedoxifene. It induces ultrastructural changes in cells, leading to a time-dependent arrest of the cell cycle at the G0/G1 phase, and triggers both apoptosis and autophagy. GP130-IN-1 is useful for research on triple-negative breast cancer.</p>

<p>BMI-135, a selective estrogen mimic, demonstrates agonist activity for the estrogen receptor and induces a rapid endoplasmic reticulum stress response (UPR) alongside apoptosis in breast cancer cells.</p>

<p>FLT3/TrKA-IN-1: Potent dual kinase inhibitor for FLT3 &amp; TrKA, promising for AML research.</p>

<p>JH-XVII-10: potent, oral DYRK1A/B inhibitor (IC50: 3/5 nM), shows antitumor activity in HNSCC.</p>

<p>Bcl-2-IN-7 inhibits Bcl-2, encourages apoptosis in cancer cells, and has anti-tumor activity with various IC50 values.</p>

<p>Flonoltinib maleate is an orally active dual inhibitor of JAK2/FLT3, with IC50 values of 0.7 nM for JAK2, 4 nM for FLT3, 26 nM for JAK1, and 39 nM for JAK3. It exhibits anticancer properties.</p>

<p>ER covalent antagonist-1 (Compound 39D) acts as an antagonist of the estrogen receptor α (ERα). This compound inhibits the proliferation of ERα-positive MCF-7 cells with an IC50 of 0.98 μM, induces cell cycle arrest at the G0/G1 phase, and triggers apoptosis. Additionally, ER covalent antagonist-1 demonstrates antitumor activity in mouse models.</p>

<p>ADH-6, a tripyridylamide, disrupts mutant p53 aggregates in cancer cells, reviving its function and inducing apoptosis.</p>

<p>AKN-028 acetate: an oral TK inhibitor for AML research, targets FLT3 with IC50 of 6 nM, inhibits autophosphorylation, and induces apoptosis.</p>

<p>Nenocorilant (Relacorilant) is an orally active glucocorticoid receptor (GR) antagonist (Ki: 0.15 nM). Nenocorilant can be used to study tumours.</p>

<p>VEGFR-2-IN-15 (Compound 14b) is a potent inhibitor of VEGFR-2. VEGFR-2-IN-15 inhibits the growth of HepG2 cells in the Pre-G1 phase and induces apoptosis.</p>

<p>MD102, with an IC50 value of 0.35 μM, is a potent TG2 inhibitor that stabilizes p53 by inhibiting TG2. This results in a decrease in p-AKT and p-mTOR downstream signaling, ultimately inducing tumor cell apoptosis [1].</p>

<p>NLRP3-IN-26 (compound 15Z), with an IC50 of 0.13 μM, functions as an inhibitor of NLRP3. It is applicable in studies involving the DSS-induced colitis model [1].</p>

<p>ST362, an anticancer agent, acts by disrupting DNA repair and halting growth in prostate, colon, lung and breast cancer cells.</p>

<p>vacuolar H+-ATPases (V-ATPases) inhibitor</p>

<p>Compound B6, also known as TOPOI/PARP-1-IN-1, is a dual inhibitor targeting TOPOI and PARP, exhibiting low cytotoxicity and oral activity with a PARP1 IC 50 of 0.09 μM. This compound effectively inhibits cancer cell proliferation and migration, induces cell cycle arrest at the G0/G1 phase, and triggers apoptosis. In murine models, TOPOI/PARP-1-IN-1 demonstrated a tumor growth inhibition rate (TGI) of 75.4% [1].</p>

HC-5404-Fu is an inhibitor of PERK with anti-tumor activity. This compound inhibits the signaling pathway of the endoplasmic reticulum stress response. Additionally, HC-5404-Fu increases the sensitivity of renal cell carcinoma cells to vascular endothelial growth factor (VEGF) receptor tyrosine kinase inhibitors (TKIs). It holds potential for research into renal cell carcinoma, stomach cancer, metastatic breast cancer, small cell lung cancer, and other solid tumors.

<p>PSP205 is an effective anticancer agent with cytotoxic properties. It induces apoptosis and triggers autophagy mediated by ER stress. Furthermore, PSP205 enhances the expression of LC3BII protein and increases the expression of CHOP and spliced XBP1 at both mRNA and protein levels.</p>

<p>Ferroptosis-IN-6 is an efficient ferroptosis inhibitor, protecting cells from cell death induced by ferroptosis inducers, and inhibiting STY-BODIPY oxidation.</p>

<p>AQX-435 activates SHIP1, inhibits PI3K in BCR signaling, induces apoptosis in B cells, and slows lymphoma growth.</p>

<p>ZSH-512 is a potent inhibitor of RARγ with antiproliferative properties. It induces apoptosis and reduces the expression of CD133, NANOG, SOX2, and EPCAM proteins. ZSH-512 exhibits anticancer activity and shows potential for colorectal cancer research.</p>

<p>Compound 8a, a dual PARP10 &amp; PARP15 inhibitor, has IC50s: PARP10 at 0.14μM &amp; PARP15 at 0.40μM; it's cell-permeable &amp; anti-apoptotic.</p>

<p>Urease-IN-20 (compound XBP2) is an inhibitor of Helicobacter pylori (H. pylori), with an IC50 of 0.14 μM for H. pylori inhibition. It effectively decreases apoptosis in GES-1 cells infected with H. pylori and reduces levels of ROS and γH2AX. Urease-IN-20 also demonstrates significant gastric mucosal protective effects, making it suitable for H. pylori research.</p>

<p>Anticancer agent 44 induces apoptosis, is selective, cytotoxic to cancer cells, and minimally toxic to human lymphocytes.</p>