General Information of This Peptide-drug Conjugate (PDC)
PDC ID
PDC_00235
PDC Name
LWJ-M30
PDC Status
Investigative
Indication
In total 1 Indication(s)
Colorectal cancer
Structure
Peptide Name
B6
 Peptide Info 
Receptor Name
Transferrin receptor protein 1 (TFRC)
 Receptor Info 
Drug Name
Maytansine
 Drug Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
Disulfide bond
 Linker Info 
Formula
C80H126ClN21O21S2
#Ro5 Violations (Lipinski): 4 Molecular Weight 1817.601
Lipid-water partition coefficient (xlogp) -1.7436
Hydrogen Bond Donor Count (hbonddonor) 18
Hydrogen Bond Acceptor Count (hbondacc) 28
Rotatable Bond Count (rotbonds) 51
Full List of Activity Data of This Peptide-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 1 Activity Data Related to This Level
Experiment 1 Reporting the Activity Data of This PDC [1]
Indication Colorectal cancer
Efficacy Data Half Maximal Inhibitory Concentration (IC50)
0.047 µM
Administration Time 48 h
Evaluation Method MTT assay
MOA of PDC
Given these findings, we employed tissue-specific drug delivery approaches PDC to overcome those adverse effects. Several TfR-targeted peptides sequence with different affinity have been reported, so we synthesized a series of TfR-targeted peptide-DM1 conjugates for screening the effects of TfR-targeted drug candidates. It is speculated that the conjugates can specifically target tumor with high expression of TfR and can be uptake more than that of the normal cells. We succeeded found LWJ-M30, a conjugate of DM1 and B6, had a significant therapeutic effect after preliminary screening. In order to further reveal the improved therapeutic effects and mechanism of the LWJ-M30 on cancer with high TfR expression, in this study, we investigated the role of the LWJ-M30 in the targeted therapy for colorectal cancer in vitro and in vivo and explored the therapeutic mechanism.

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Description
To determine the activity of the compounds, we analyzed the effects of them on cell growth and migration in HCT116 cells. We found that LWJ-M30 displayed significant inhibition of cell proliferation and clone formation ability. The IC50 of LWJ-M30 was 0.047 uM which was close to DM1 (0.026 uM). According to the results of wound-healing assay and transwell migration assay, LWJ-M30 also dramatically showed a inhibitory effect on cells migration. These results suggested that LWJ-M30 could inhibit the cells proliferation and migration.

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In Vitro Model Colon carcinoma HCT 116 cell CVCL_0291
References
Ref 1 LWJ-M30, a conjugate of DM1 and B6, for the targeted therapy of colorectal cancer with improved therapeutic effects. RSC Adv. 2023 Apr 5;13(16):10840-10846. doi: 10.1039/d2ra07758b. eCollection 2023 Apr 3.