1. Signaling Pathways
  2. Antibody-drug Conjugate/ADC Related
  3. ADC Cytotoxin

ADC Cytotoxin

ADC Payload

ADC cytotoxins (also known as payloads) are cytotoxic agents that induce target cell death in Antibody Drug Conjugates (ADCs). An ADC is a targeted agent composed with a monoclonal antibody, a linker and a cytotoxin. The cytotoxin is the most important component as it determines the potency to kill cancer cells of an ADC.

There are many cytotoxins which are currently being used such as Calicheamicins, Duocarmycins, Pyrrolobenzodiazepines (PBDs), Camptothecins, Daunorubicins/Doxorubicins, Auristatins and Maytansinoids. They can be divided in two classes based on their mechanism of action, DNA damaging agents and tubulin inhibitors. Among them Calicheamicins, Duocarmycins and PBDs are DNA minor grove binders, Camptothecins and Daunorubicins/Doxorubicins are topoisomerase inhibitors, which are DNA damaging agents. Auristatins and Maytansinoids are tubulin inhibitors. Except for the listed cytotoxins, there are numbers of traditional cytotoxic agents with similar mechanisms of killing cancer cells and can also be used in the development of ADCs.

Cat. No. Product Name Effect Purity
  • HY-15142
    Doxorubicin hydrochloride
    99.58%
    Doxorubicin (Hydroxydaunorubicin) hydrochloride, a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin hydrochloride is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC50s of 0.8 μM and 2.67 μM, respectively. Doxorubicin hydrochloride reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin hydrochloride induces apoptosis and autophagy.
  • HY-B0015
    Paclitaxel
    99.97%
    Paclitaxel is a naturally occurring antineoplastic agent and stabilizes tubulin polymerization. Paclitaxel can cause both mitotic arrest and apoptotic cell death. Paclitaxel also induces autophagy.
  • HY-15162
    Monomethyl auristatin E
    99.94%
    Monomethyl auristatin E (MMAE; SGD-1010) is a synthetic derivative of dolastatin 10 and functions as a potent mitotic inhibitor by inhibiting tubulin polymerization. MMAE is widely used as a cytotoxic component of antibody-drug conjugates (ADCs) to treat several different cancer types.
  • HY-14519
    Methotrexate
    99.87%
    Methotrexate (Amethopterin), an antimetabolite and antifolate agent, inhibits the enzyme dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibiting DNA synthesis. Methotrexate, also an immunosuppressant and antineoplastic agent, is used for the research of rheumatoid arthritis and a number of different cancers (such as acute lymphoblastic leukemia).
  • HY-13704
    SN-38
    99.80%
    SN-38 (NK012) is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 (NK012) inhibits DNA and RNA synthesis with IC50s of 0.077 and 1.3 μM, respectively.
  • HY-14519D
    Methotrexate monohydrate
    Methotrexate (Amethopterin) monohydrate, an antimetabolite and antifolate agent, inhibits the enzyme dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibiting DNA synthesis. Methotrexate monohydrate, also an immunosuppressant and antineoplastic agent, is used for the research of rheumatoid arthritis and a number of different cancers (such as acute lymphoblastic leukemia).
  • HY-151207
    Anticancer agent 81
    Anticancer agent 81 (Compound 37b3) is an anticancer agent and can induce tumor cell cycle arrest and apoptosis. Anticancer agent 81 can be used as a payload to conjugate with Trastuzumab (HY-P9907) to obtain the antibody–drug conjugate (ADC) T-PBA. T-PBA maintained its mode of target and internalization ability of Trastuzumab.
  • HY-108876
    Daunorubicin citrate
    Daunorubicin (Daunomycin) citrate is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin citrate inhibits DNA and RNA synthesis. Daunorubicin citrate is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin citrate is also an anthracycline antibiotic. Daunorubicin citrate can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor.
  • HY-16560
    Camptothecin
    99.69%
    Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC50 of 679 nM. Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA) expression patterns in human cancer cells.
  • HY-13631D
    Dxd
    98.02%
    Dxd (Exatecan derivative for ADC) is a potent DNA topoisomerase I inhibitor, with an IC50 of 0.31 μM, used as a conjugated drug of HER2-targeting ADC (DS-8201a).
  • HY-19792
    Mertansine
    99.80%
    Mertansine (DM1) is a microtubulin inhibitor and is an antibody-conjugatable maytansinoid that is developed to overcome systemic toxicity associated with maytansine and to enhance tumor-specific delivery. Mertansine can be attached to a monoclonal antibody with a linker to create an antibody-drug conjugate (ADC).
  • HY-13062
    Daunorubicin hydrochloride
    99.23%
    Daunorubicin (Daunomycin) hydrochloride is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin hydrochloride inhibits DNA and RNA synthesis. Daunorubicin hydrochloride is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin hydrochloride is also an anthracycline antibiotic. Daunorubicin hydrochloride can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor.
  • HY-19610
    α-Amanitin
    99.92%
    α-Amanitin is the principal toxin of several deadly poisonous mushrooms, exerting its toxic function by inhibiting RNA-polymerase II.
  • HY-15162A
    MMAE-d8
    99.29%
    MMAE-d8 (Monomethyl auristatin E-d8) is a deuterated labeled MMAE, a potent mitotic inhibitor and a tubulin inhibitor.
  • HY-19609
    Calicheamicin
    98.28%
    Calicheamicin, an antitumor antibiotic, is a cytotoxic agent that causes double-strand DNA breaks. Calicheamicin is a DNA synthesis inhibitor.
  • HY-12454
    DM4
    99.64%
    DM4 is is an antitubulin agent that inhibit cell division. DM4 can be used in the preparation of antibody drug conjugate.
  • HY-16261
    Aldoxorubicin
    Aldoxorubicin (INNO-206) is an albumin-binding prodrug of Doxorubicin (DNA topoisomerase II inhibitor), which is released from albumin under acidic conditions. Aldoxorubicin (INNO-206) has potent antitumor activities in various cancer cell lines and in murine tumor models.
  • HY-15584
    Taltobulin
    99.90%
    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.
  • HY-15579
    MMAF
    99.94%
    MMAF (Monomethylauristatin F) is a potent tubulin polymerization inhibitor and is used as a antitumor agent. MMAF (Monomethylauristatin F) is widely used as a cytotoxic component of antibody-drug conjugates (ADCs) such as vorsetuzumab mafodotin and SGN-CD19A.
  • HY-101161
    SG3199
    98.94%
    SG3199 is a cytotoxic DNA minor groove interstrand crosslinking pyrrolobenzodiazepine (PBD) dimer. SG3199 is the released warhead component of the ADC payload Tesirine (SG3249).

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