1. Cell Cycle/DNA Damage
    Cytoskeleton
    Antibody-drug Conjugate/ADC Related
    Apoptosis
  2. Microtubule/Tubulin
    ADC Cytotoxin
    Apoptosis
  3. Taltobulin

Taltobulin (Synonyms: HTI-286; SPA-110)

Cat. No.: HY-15584 Purity: 99.90%
Handling Instructions

Taltobulin (HTI-286), a synthetic analogue of the tripeptide hemiasterlin, is a potent antimicrotubule agent that circumvents P-glycoprotein-mediated resistance in vitro and in vivo. Taltobulin inhibits the polymerization of purified tubulin, disrupts microtubule organization in cells, and induces mitotic arrest, as well as apoptosis.

For research use only. We do not sell to patients.

Taltobulin Chemical Structure

Taltobulin Chemical Structure

CAS No. : 228266-40-8

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Free Sample (0.5-1 mg)   Apply Now  
10 mM * 1 mL in DMSO USD 176 In-stock
Estimated Time of Arrival: December 31
5 mg USD 160 In-stock
Estimated Time of Arrival: December 31
10 mg USD 240 In-stock
Estimated Time of Arrival: December 31
50 mg USD 850 In-stock
Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

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Description

Taltobulin (HTI-286), a synthetic analogue of the tripeptide hemiasterlin, is a potent antimicrotubule agent that circumvents P-glycoprotein-mediated resistance in vitro and in vivo. Taltobulin inhibits the polymerization of purified tubulin, disrupts microtubule organization in cells, and induces mitotic arrest, as well as apoptosis[1].

IC50 & Target

Traditional Cytotoxic Agents

 

In Vitro

Taltobulin (HTI-286; 0.2-7.3 nM; 3 days) inhibits the growth of 18 tumor cell lines (leukemia, ovarian, NSCLC, breast, colon, and melanoma cell lines) with an average IC50 of 2.5±2.1 nM and a median value of 1.7 nM[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay[1]

Cell Line: Leukemia CCRF-CEM cell line; ovarian 1A9 cell line; NSCLC A549 and NCI-H1299 cell lines; breast MX-1W and MCF-7 cell lines; colon HCT-116, DLD-1, Colo205, KM20, SW620, S1, HCT-15 and Moser cell lines; melanoma A375, Lox and SK-Mel-2 cell lines
Concentration: 0.2-7.3 nM
Incubation Time: 3 days
Result: Inhibited the growth of tumor cell lines with IC50s of 0.2±0.03 nM (for leukemia CCRF-CEM cell line), 0.6±0.1 nM (for ovarian 1A9 cell line), 1.1±0.5 and 6.8±6.1 nM ( for NSCLC A549 and NCI-H1299 cell lines), 1.8±0.6, 7.3±2.3 nM (for breast MX-1W, MCF-7 cell lines), 0.7±0.2, 1.1±0.4, 1.5±0.6, 1.8±0.6, 3.6±0.8, 3.7±2.0, 4.2±2.5, and 5.3±4.1 nM ( for colon HCT-116, DLD-1, Colo205, KM20, SW620, S1, HCT-15, and Moser cell lines), 1.1±0.8, 1.4±0.6 and 1.7±0.5 nM (for melanoma A375, Lox and SK-Mel-2 cell lines).
In Vivo

Taltobulin (HTI-286; 1.6 mg/kg i.v.) inhibits the growth of human tumor xenografts (e.g., HCT-15, DLD-1, MX-1W, and KB-8-5) in athymic nu/nu female mice[1].
Taltobulin (HTI-286; 3 mg/kg; p.o. gavage) inhibits growth by 97.3 % and 82% in athymic nu/nu female mice with Lox melanoma xenografts and KB-3-1 epidermoid xenograft model, respectively[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Athymic nu/nu female mice with Lox melanoma model (5-6 weeks of age)[1]
Dosage: 1.6 mg/kg
Administration: Administered i.v.;for 35 days
Result: Growth of Lox tumors was inhibited by 96-98% on day 12 compared with vehicle-treated controls.
Growth of KB-8-5 tumors was inhibited by 84% on day 14 compared with vehicle-treated controls.
Growth of MX-1W tumors was inhibited by 97% compared with vehicle-treated controls.
Growth of DLD-1 and HCT-15 tumors was inhibited by 80 and 66%, respectively.
Molecular Weight

473.65

Formula

C₂₇H₄₃N₃O₄

CAS No.

228266-40-8

SMILES

CC(C)(C)[[email protected]](NC([[email protected]](C(C)(C1=CC=CC=C1)C)NC)=O)C(N([[email protected]@H](C(C)C)/C=C(C(O)=O)\C)C)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (211.13 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1113 mL 10.5563 mL 21.1126 mL
5 mM 0.4223 mL 2.1113 mL 4.2225 mL
10 mM 0.2111 mL 1.0556 mL 2.1113 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (5.28 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (5.28 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (5.28 mM); Clear solution

*All of the co-solvents are provided by MCE.
References

Purity: 99.90%

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Keywords:

TaltobulinHTI-286 SPA-110HTI286HTI 286SPA110SPA 110SPA-110Microtubule/TubulinADC CytotoxinApoptosisInhibitorinhibitorinhibit

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