Drug Information

Drug (ID: DG00340) and It's Reported Resistant Information
Name
Cetuximab
Synonyms
Erbitux; Cetuximab (genetical recombination); Erbitux (TN); Cetuximab (USAN/INN); Cetuximab (genetical recombination) (JAN); novel EGFR mAb inhibitors
    Click to Show/Hide
Indication
In total 1 Indication(s)
Colorectal cancer [ICD-11: 2B91]
Approved
[1]
Drug Resistance Disease(s)
Disease(s) with Clinically Reported Resistance for This Drug (3 diseases)
Colorectal cancer [ICD-11: 2B91]
[2]
Head and neck squamous cell carcinoma [ICD-11: 2D60]
[3]
Metastatic colorectal cancer [ICD-11: 2D85]
[4]
Disease(s) with Resistance Information Validated by in-vivo Model for This Drug (1 diseases)
Colorectal cancer [ICD-11: 2B91]
[5]
Disease(s) with Resistance Information Discovered by Cell Line Test for This Drug (5 diseases)
Colon cancer [ICD-11: 2B90]
[6]
Colorectal cancer [ICD-11: 2B91]
[7]
Gastric cancer [ICD-11: 2B72]
[8]
Head and neck cancer [ICD-11: 2D42]
[9]
Head and neck squamous cell carcinoma [ICD-11: 2D60]
[3]
Target Epidermal growth factor receptor (EGFR) EGFR_HUMAN [1]
Click to Show/Hide the Molecular Information and External Link(s) of This Drug
TTD Drug ID
D0N5OV
DrugBank ID
DB00002
Type(s) of Resistant Mechanism of This Drug due to Structure Alteration
  ADTT: Aberration of the Drug's Therapeutic Target
  UAPP: Unusual Activation of Pro-survival Pathway
Drug Resistance Data Categorized by Their Corresponding Diseases
ICD-02: Benign/in-situ/malignant neoplasm
Click to Show/Hide the Resistance Disease of This Class
Colorectal cancer [ICD-11: 2B91]
Click to Show/Hide
Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: GTPase KRas (KRAS) [10], [11], [12]
Resistant Disease Colorectal cancer [ICD-11: 2B91.1]
 Disease Info 
Molecule Alteration Missense mutation
p.G12V
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 1.98  Å
PDB: 7SCW
Mutant Type Structure Method: X-ray diffraction Resolution: 1.96  Å
PDB: 7SCX
   Download The Information of Sequence       Download The Structure File   
RMSD: 0.47
TM score: 0.99104
Amino acid change:
G12V
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
G
-
0
|
S
-
M
M
T
T
E
E
Y
Y
K
K
L
L
V
V
V
V
V
V
10
|
G
G
A
A
G
V
G
G
V
V
G
G
K
K
S
S
A
A
L
L
20
|
T
T
I
I
Q
Q
L
L
I
I
Q
Q
N
N
H
H
F
F
V
V
30
|
D
D
E
E
Y
Y
D
D
P
P
T
T
I
I
E
E
D
D
S
S
40
|
Y
Y
R
R
K
K
Q
Q
V
V
V
V
I
I
D
D
G
G
E
E
50
|
T
T
C
C
L
L
L
L
D
D
I
I
L
L
D
D
T
T
A
A
60
|
G
G
Q
Q
E
E
E
E
Y
Y
S
S
A
A
M
M
R
R
D
D
70
|
Q
Q
Y
Y
M
M
R
R
T
T
G
G
E
E
G
G
F
F
L
L
80
|
C
C
V
V
F
F
A
A
I
I
N
N
N
N
T
T
K
K
S
S
90
|
F
F
E
E
D
D
I
I
H
H
H
H
Y
Y
R
R
E
E
Q
Q
100
|
I
I
K
K
R
R
V
V
K
K
D
D
S
S
E
E
D
D
V
V
110
|
P
P
M
M
V
V
L
L
V
V
G
G
N
N
K
K
S
S
D
D
120
|
L
L
P
P
S
S
R
R
T
T
V
V
D
D
T
T
K
K
Q
Q
130
|
A
A
Q
Q
D
D
L
L
A
A
R
R
S
S
Y
Y
G
G
I
I
140
|
P
P
F
F
I
I
E
E
T
T
S
S
A
A
K
K
T
T
R
R
150
|
Q
Q
G
G
V
V
D
D
D
D
A
A
F
F
Y
Y
T
T
L
L
160
|
V
V
R
R
E
E
I
I
R
R
K
K
H
H
K
K
E
E
K
K
170
|
M
M
S
S
K
K
D
D
G
G
K
K
K
K
K
K
K
K
K
K
180
|
K
K
S
S
K
K
T
T
K
K
C
C
V
V
I
I
M
M
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
Cell Pathway Regulation EGFR/RAS signaling pathway Activation hsa01521
In Vitro Model LIM1215 cells Colon Homo sapiens (Human) CVCL_2574
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 Next-generation sequencing assay
Experiment for
Drug Resistance		 Liquid biopsy assay
Mechanism Description Mechanisms of resistance to EGFR blockade include the emergence of kRAS, NRAS and EGFR extracellular domain mutations as well as HER2/MET alterations (27780856). kRAS and EGFR ectodomain-acquired mutations in patients with metastatic colorectal cancer (mCRC) have been correlated with acquired resistance to anti-EGFR monoclonal antibodies (mAbs).
Key Molecule: GTPase KRas (KRAS) [12]
Resistant Disease Colorectal cancer [ICD-11: 2B91.1]
 Disease Info 
Molecule Alteration Missense mutation
p.Q61H
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 1.31  Å
PDB: 6T5V
Mutant Type Structure Method: X-ray diffraction Resolution: 2.20  Å
PDB: 6MNX
   Download The Information of Sequence       Download The Structure File   
RMSD: 1.14
TM score: 0.96411
Amino acid change:
Q61H
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
M
M
T
T
E
E
Y
Y
K
K
L
L
V
V
V
V
V
V
10
|
G
G
A
A
C
G
G
G
V
V
G
G
K
K
S
S
A
A
L
L
20
|
T
T
I
I
Q
Q
L
L
I
I
Q
Q
N
N
H
H
F
F
V
V
30
|
D
D
E
E
Y
Y
D
D
P
P
T
T
I
I
E
E
D
D
S
S
40
|
Y
Y
R
R
K
K
Q
Q
V
V
V
V
I
I
D
D
G
G
E
E
50
|
T
T
S
C
L
L
L
L
D
D
I
I
L
L
D
D
T
T
A
A
60
|
G
G
Q
H
E
E
E
E
Y
Y
S
S
A
A
M
M
R
R
D
D
70
|
Q
Q
Y
Y
M
M
R
R
T
T
G
G
E
E
G
G
F
F
L
L
80
|
L
C
V
V
F
F
A
A
I
I
N
N
N
N
T
T
K
K
S
S
90
|
F
F
E
E
D
D
I
I
H
H
H
H
Y
Y
R
R
E
E
Q
Q
100
|
I
I
K
K
R
R
V
V
K
K
D
D
S
S
E
E
D
D
V
V
110
|
P
P
M
M
V
V
L
L
V
V
G
G
N
N
K
K
S
C
D
D
120
|
L
L
P
P
S
S
R
R
T
T
V
V
D
D
T
T
K
K
Q
Q
130
|
A
A
Q
Q
D
D
L
L
A
A
R
R
S
S
Y
Y
G
G
I
I
140
|
P
P
F
F
I
I
E
E
T
T
S
S
A
A
K
K
T
T
R
R
150
|
Q
Q
G
G
V
V
D
D
D
D
A
A
F
F
Y
Y
T
T
L
L
160
|
V
V
R
R
E
E
I
I
R
R
K
K
H
H
K
K
E
E
K
K
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 Next-generation sequencing assay
Experiment for
Drug Resistance		 Liquid biopsy assay
Mechanism Description Mechanisms of resistance to EGFR blockade include the emergence of kRAS, NRAS and EGFR extracellular domain mutations as well as HER2/MET alterations.
Key Molecule: GTPase KRas (KRAS) [12]
Resistant Disease Colorectal cancer [ICD-11: 2B91.1]
 Disease Info 
Molecule Alteration Missense mutation
p.G12D
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 1.40  Å
PDB: 6VJJ
Mutant Type Structure Method: X-ray diffraction Resolution: 2.10  Å
PDB: 8JHL
   Download The Information of Sequence       Download The Structure File   
RMSD: 1.55
TM score: 0.9318
Amino acid change:
G12D
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
0
|
G
-
M
M
T
T
E
E
Y
Y
K
K
L
L
V
V
V
V
V
V
10
|
G
G
A
A
G
D
G
G
V
V
G
G
K
K
S
S
A
A
L
L
20
|
T
T
I
I
Q
Q
L
L
I
I
Q
Q
N
N
H
H
F
F
V
V
30
|
D
D
E
E
Y
Y
D
D
P
P
T
T
I
I
E
E
D
D
S
S
40
|
Y
Y
R
R
K
K
Q
Q
V
V
V
V
I
I
D
D
G
G
E
E
50
|
T
T
C
C
L
L
L
L
D
D
I
I
L
L
D
D
T
T
A
A
60
|
G
G
Q
Q
E
E
E
E
Y
Y
S
S
A
A
M
M
R
R
D
D
70
|
Q
Q
Y
Y
M
M
R
R
T
T
G
G
E
E
G
G
F
F
L
L
80
|
C
C
V
V
F
F
A
A
I
I
N
N
N
N
T
T
K
K
S
S
90
|
F
F
E
E
D
D
I
I
H
H
H
H
Y
Y
R
R
E
E
Q
Q
100
|
I
I
K
K
R
R
V
V
K
K
D
D
S
S
E
E
D
D
V
V
110
|
P
P
M
M
V
V
L
L
V
V
G
G
N
N
K
K
C
C
D
D
120
|
L
L
P
P
S
S
R
R
T
T
V
V
D
D
T
T
K
K
Q
Q
130
|
A
A
Q
Q
D
D
L
L
A
A
R
R
S
S
Y
Y
G
G
I
I
140
|
P
P
F
F
I
I
E
E
T
T
S
S
A
A
K
K
T
T
R
R
150
|
Q
Q
G
R
V
V
D
E
D
D
A
A
F
F
Y
Y
T
T
L
L
160
|
V
V
R
R
E
E
I
I
R
R
K
Q
H
Y
K
R
E
L
K
K
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 Next-generation sequencing assay
Experiment for
Drug Resistance		 Liquid biopsy assay
Mechanism Description Mechanisms of resistance to EGFR blockade include the emergence of kRAS, NRAS and EGFR extracellular domain mutations as well as HER2/MET alterations.
Key Molecule: Serine/threonine-protein kinase B-raf (BRAF) [12]
Resistant Disease Colorectal cancer [ICD-11: 2B91.1]
 Disease Info 
Molecule Alteration Missense mutation
p.V600E
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 2.55  Å
PDB: 4E26
Mutant Type Structure Method: X-ray diffraction Resolution: 3.20  Å
PDB: 4G9R
   Download The Information of Sequence       Download The Structure File   
RMSD: 1.53
TM score: 0.95765
Amino acid change:
V600E
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
420
|
M
M
D
D
R
R
G
G
S
S
H
H
H
H
H
H
H
H
H
H
430
|
H
H
G
G
S
S
E
E
D
D
R
R
N
N
R
R
M
M
K
K
440
|
T
T
L
L
G
G
R
R
R
R
D
D
S
S
S
S
D
D
D
D
450
|
W
W
E
E
I
I
P
P
D
D
G
G
Q
Q
I
I
T
T
V
V
460
|
G
G
Q
Q
R
R
I
I
G
G
S
S
G
G
S
S
F
F
G
G
470
|
T
T
V
V
Y
Y
K
K
G
G
K
K
W
W
H
H
G
G
D
D
480
|
V
V
A
A
V
V
K
K
M
M
L
L
N
N
V
V
T
T
A
A
490
|
P
P
T
T
P
P
Q
Q
Q
Q
L
L
Q
Q
A
A
F
F
K
K
500
|
N
N
E
E
V
V
G
G
V
V
L
L
R
R
K
K
T
T
R
R
510
|
H
H
V
V
N
N
I
I
L
L
L
L
F
F
M
M
G
G
Y
Y
520
|
S
S
T
T
K
K
P
P
Q
Q
L
L
A
A
I
I
V
V
T
T
530
|
Q
Q
W
W
C
C
E
E
G
G
S
S
S
S
L
L
Y
Y
H
H
540
|
H
H
L
L
H
H
I
I
I
I
E
E
T
T
K
K
F
F
E
E
550
|
M
M
I
I
K
K
L
L
I
I
D
D
I
I
A
A
R
R
Q
Q
560
|
T
T
A
A
Q
Q
G
G
M
M
D
D
Y
Y
L
L
H
H
A
A
570
|
K
K
S
S
I
I
I
I
H
H
R
R
D
D
L
L
K
K
S
S
580
|
N
N
N
N
I
I
F
F
L
L
H
H
E
E
D
D
L
L
T
T
590
|
V
V
K
K
I
I
G
G
D
D
F
F
G
G
L
L
A
A
T
T
600
|
V
E
K
K
S
S
R
R
W
W
S
S
G
G
S
S
H
H
Q
Q
610
|
F
F
E
E
Q
Q
L
L
S
S
G
G
S
S
I
I
L
L
W
W
620
|
M
M
A
A
P
P
E
E
V
V
I
I
R
R
M
M
Q
Q
D
D
630
|
K
K
N
N
P
P
Y
Y
S
S
F
F
Q
Q
S
S
D
D
V
V
640
|
Y
Y
A
A
F
F
G
G
I
I
V
V
L
L
Y
Y
E
E
L
L
650
|
M
M
T
T
G
G
Q
Q
L
L
P
P
Y
Y
S
S
N
N
I
I
660
|
N
N
N
N
R
R
D
D
Q
Q
I
I
I
I
F
F
M
M
V
V
670
|
G
G
R
R
G
G
Y
Y
L
L
S
S
P
P
D
D
L
L
S
S
680
|
K
K
V
V
R
R
S
S
N
N
C
C
P
P
K
K
A
A
M
M
690
|
K
K
R
R
L
L
M
M
A
A
E
E
C
C
L
L
K
K
K
K
700
|
K
K
R
R
D
D
E
E
R
R
P
P
L
L
F
F
P
P
Q
Q
710
|
I
I
L
L
A
A
S
S
I
I
E
E
L
L
L
L
A
A
R
R
720
|
S
S
L
L
P
P
K
K
I
I
H
H
R
R
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
In Vitro Model Colon cells Colon Homo sapiens (Human) N.A.
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 Next-generation sequencing assay
Experiment for
Drug Resistance		 Liquid biopsy assay
Mechanism Description Mechanisms of resistance to EGFR blockade include the emergence of kRAS, NRAS and EGFR extracellular domain mutations as well as HER2/MET alterations.
Metastatic colorectal cancer [ICD-11: 2D85]
Click to Show/Hide
Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Epidermal growth factor receptor (EGFR) [11]
Resistant Disease Metastatic colorectal cancer [ICD-11: 2D85.0]
 Disease Info 
Molecule Alteration Missense mutation
p.S492R
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 3.20  Å
PDB: 3C09
Mutant Type Structure Method: X-ray diffraction Resolution: 2.80  Å
PDB: 6B3S
   Download The Information of Sequence       Download The Structure File   
RMSD: 0.58
TM score: 0.98774
Amino acid change:
S492R
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
L
L
E
E
E
E
310
|
K
K
K
K
V
V
C
C
N
N
G
G
I
I
G
G
I
I
G
G
320
|
E
E
F
F
K
K
D
D
S
S
L
L
S
S
I
I
N
N
A
A
330
|
T
T
N
N
I
I
K
K
H
H
F
F
K
K
N
N
C
C
T
T
340
|
S
S
I
I
S
S
G
G
D
D
L
L
H
H
I
I
L
L
P
P
350
|
V
V
A
A
F
F
R
R
G
G
D
D
S
S
F
F
T
T
H
H
360
|
T
T
P
P
P
P
L
L
D
D
P
P
Q
Q
E
E
L
L
D
D
370
|
I
I
L
L
K
K
T
T
V
V
K
K
E
E
I
I
T
T
G
G
380
|
F
F
L
L
L
L
I
I
Q
Q
A
A
W
W
P
P
E
E
N
N
390
|
R
R
T
T
D
D
L
L
H
H
A
A
F
F
E
E
N
N
L
L
400
|
E
E
I
I
I
I
R
R
G
G
R
R
T
T
K
K
Q
Q
H
H
410
|
G
G
Q
Q
F
F
S
S
L
L
A
A
V
V
V
V
S
S
L
L
420
|
N
N
I
I
T
T
S
S
L
L
G
G
L
L
R
R
S
S
L
L
430
|
K
K
E
E
I
I
S
S
D
D
G
G
D
D
V
V
I
I
I
I
440
|
S
S
G
G
N
N
K
K
N
N
L
L
C
C
Y
Y
A
A
N
N
450
|
T
T
I
I
N
N
W
W
K
K
K
K
L
L
F
F
G
G
T
T
460
|
S
S
G
G
Q
Q
K
K
T
T
K
K
I
I
I
I
S
R
N
N
470
|
R
R
G
G
E
E
N
N
S
S
C
C
K
K
A
A
T
T
G
G
480
|
Q
Q
V
V
C
C
H
H
A
A
L
L
C
C
S
S
P
P
E
E
490
|
G
G
C
C
W
W
G
G
P
P
E
E
P
P
R
R
D
D
C
C
500
|
V
V
S
S
C
C
R
R
N
N
V
V
S
S
R
R
G
G
R
R
510
|
E
E
C
C
V
V
D
D
K
K
H
H
H
H
H
H
H
H
H
H
520
|
H
H
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
Experiment for
Molecule Alteration		 Circulating-free DNA assay; Standard-of-care sequencing assay
Mechanism Description K-RAS and EGFR ectodomain-acquired mutations in patients with metastatic colorectal cancer (mCRC) have been correlated with acquired resistance to anti-EGFR monoclonal antibodies (mAbs).
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: GTPase KRas (KRAS) [4]
Resistant Disease Metastatic colorectal cancer [ICD-11: 2D85.0]
 Disease Info 
Molecule Alteration Missense mutation
p.Q61H
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 1.31  Å
PDB: 6T5V
Mutant Type Structure Method: X-ray diffraction Resolution: 2.20  Å
PDB: 6MNX
   Download The Information of Sequence       Download The Structure File   
RMSD: 1.14
TM score: 0.96411
Amino acid change:
Q61H
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
M
M
T
T
E
E
Y
Y
K
K
L
L
V
V
V
V
V
V
10
|
G
G
A
A
C
G
G
G
V
V
G
G
K
K
S
S
A
A
L
L
20
|
T
T
I
I
Q
Q
L
L
I
I
Q
Q
N
N
H
H
F
F
V
V
30
|
D
D
E
E
Y
Y
D
D
P
P
T
T
I
I
E
E
D
D
S
S
40
|
Y
Y
R
R
K
K
Q
Q
V
V
V
V
I
I
D
D
G
G
E
E
50
|
T
T
S
C
L
L
L
L
D
D
I
I
L
L
D
D
T
T
A
A
60
|
G
G
Q
H
E
E
E
E
Y
Y
S
S
A
A
M
M
R
R
D
D
70
|
Q
Q
Y
Y
M
M
R
R
T
T
G
G
E
E
G
G
F
F
L
L
80
|
L
C
V
V
F
F
A
A
I
I
N
N
N
N
T
T
K
K
S
S
90
|
F
F
E
E
D
D
I
I
H
H
H
H
Y
Y
R
R
E
E
Q
Q
100
|
I
I
K
K
R
R
V
V
K
K
D
D
S
S
E
E
D
D
V
V
110
|
P
P
M
M
V
V
L
L
V
V
G
G
N
N
K
K
S
C
D
D
120
|
L
L
P
P
S
S
R
R
T
T
V
V
D
D
T
T
K
K
Q
Q
130
|
A
A
Q
Q
D
D
L
L
A
A
R
R
S
S
Y
Y
G
G
I
I
140
|
P
P
F
F
I
I
E
E
T
T
S
S
A
A
K
K
T
T
R
R
150
|
Q
Q
G
G
V
V
D
D
D
D
A
A
F
F
Y
Y
T
T
L
L
160
|
V
V
R
R
E
E
I
I
R
R
K
K
H
H
K
K
E
E
K
K
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
In Vitro Model DiFi cells Colon Homo sapiens (Human) CVCL_6895
DiFi-R cells Colon Homo sapiens (Human) CVCL_A2BW
Lim1215-R cells Colon Homo sapiens (Human) CVCL_1736
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 FISH analysis; Sanger sequencing assay
Experiment for
Drug Resistance		 Cell viability assay
Mechanism Description Nevertheless, our functional analysis in cell models show that kRAS mutations are causally responsible for acquired resistance to cetuximab.
Key Molecule: GTPase Nras (NRAS) [13]
Resistant Disease Metastatic colorectal cancer [ICD-11: 2D85.0]
 Disease Info 
Molecule Alteration Missense mutation
p.G12C
 Molecule Info 
Wild Type Structure Method: X-ray diffraction Resolution: 1.40  Å
PDB: 6VJJ
Mutant Type Structure Method: X-ray diffraction Resolution: 1.60  Å
PDB: 8JGD
   Download The Information of Sequence       Download The Structure File   
RMSD: 1.55
TM score: 0.93157
Amino acid change:
G12C
 : Wild Type Structure
 : Mutant Type Structure
  Mutation site(s) have been marked in red
-
0
|
G
-
M
M
T
T
E
E
Y
Y
K
K
L
L
V
V
V
V
V
V
10
|
G
G
A
A
G
C
G
G
V
V
G
G
K
K
S
S
A
A
L
L
20
|
T
T
I
I
Q
Q
L
L
I
I
Q
Q
N
N
H
H
F
F
V
V
30
|
D
D
E
E
Y
Y
D
D
P
P
T
T
I
I
E
E
D
D
S
S
40
|
Y
Y
R
R
K
K
Q
Q
V
V
V
V
I
I
D
D
G
G
E
E
50
|
T
T
C
C
L
L
L
L
D
D
I
I
L
L
D
D
T
T
A
A
60
|
G
G
Q
Q
E
E
E
E
Y
Y
S
S
A
A
M
M
R
R
D
D
70
|
Q
Q
Y
Y
M
M
R
R
T
T
G
G
E
E
G
G
F
F
L
L
80
|
C
C
V
V
F
F
A
A
I
I
N
N
N
N
T
T
K
K
S
S
90
|
F
F
E
E
D
D
I
I
H
H
H
H
Y
Y
R
R
E
E
Q
Q
100
|
I
I
K
K
R
R
V
V
K
K
D
D
S
S
E
E
D
D
V
V
110
|
P
P
M
M
V
V
L
L
V
V
G
G
N
N
K
K
C
C
D
D
120
|
L
L
P
P
S
S
R
R
T
T
V
V
D
D
T
T
K
K
Q
Q
130
|
A
A
Q
Q
D
D
L
L
A
A
R
R
S
S
Y
Y
G
G
I
I
140
|
P
P
F
F
I
I
E
E
T
T
S
S
A
A
K
K
T
T
R
R
150
|
Q
Q
G
R
V
V
D
E
D
D
A
A
F
F
Y
Y
T
T
L
L
160
|
V
V
R
R
E
E
I
I
R
R
K
Q
H
Y
K
R
E
L
K
K
Click to Show/Hide the Structure
Experimental Note Identified from the Human Clinical Data
Cell Pathway Regulation EGFR/RAS signaling pathway Inhibition hsa01521
In Vitro Model LIM1215 cells Colon Homo sapiens (Human) CVCL_2574
In Vivo Model A retrospective survey in conducting clinical studies Homo sapiens
Experiment for
Molecule Alteration		 Next-generation sequencing assay
Experiment for
Drug Resistance		 Liquid biopsies assay; Functional analyses of cell populations assay
Mechanism Description Acquired resistance to EGFR blockade is driven by the emergence of kRAS/NRAS mutations or the development of EGFR extracellular domain (ECD) variants, which impair antibody binding.
References
Ref 1 Hsa_circ_0005379 regulates malignant behavior of oral squamous cell carcinoma through the EGFR pathway. BMC Cancer. 2019 Apr 29;19(1):400. doi: 10.1186/s12885-019-5593-5.
Ref 2 Amplification of the MET receptor drives resistance to anti-EGFR therapies in colorectal cancer. Cancer Discov. 2013 Jun;3(6):658-73. doi: 10.1158/2159-8290.CD-12-0558. Epub 2013 Jun 2.
Ref 3 PPARalpha-mediated lipid metabolism reprogramming supports anti-EGFR therapy resistance in head and neck squamous cell carcinoma. Nat Commun. 2025 Feb 1;16(1):1237.
Ref 4 Emergence of KRAS mutations and acquired resistance to anti-EGFR therapy in colorectal cancer. Nature. 2012 Jun 28;486(7404):532-6. doi: 10.1038/nature11156.
Ref 5 Increased anaerobic metabolism is a distinctive signature in a colorectal cancer cellular model of resistance to antiepidermal growth factor receptor antibody. Proteomics. 2013 Mar;13(5):866-77. doi: 10.1002/pmic.201200303. Epub 2013 Jan 24.
Ref 6 MiR-199a-5p and miR-375 affect colon cancer cell sensitivity to cetuximab by targeting PHLPP1. Expert Opin Ther Targets. 2015;19(8):1017-26. doi: 10.1517/14728222.2015.1057569. Epub 2015 Jun 24.
Ref 7 lncRNA MIR100HG-derived miR-100 and miR-125b mediate cetuximab resistance via Wnt/Beta-catenin signaling. Nat Med. 2017 Nov;23(11):1331-1341. doi: 10.1038/nm.4424. Epub 2017 Oct 16.
Ref 8 Inhibition of Glutamine Uptake Improves the Efficacy of Cetuximab on Gastric Cancer. Integr Cancer Ther. 2021 Jan-Dec;20:15347354211045349.
Ref 9 Regulation of heparin-binding EGF-like growth factor by miR-212 and acquired cetuximab-resistance in head and neck squamous cell carcinoma. PLoS One. 2010 Sep 13;5(9):e12702. doi: 10.1371/journal.pone.0012702.
Ref 10 Liquid biopsy: monitoring cancer-genetics in the blood. Nat Rev Clin Oncol. 2013 Aug;10(8):472-84. doi: 10.1038/nrclinonc.2013.110. Epub 2013 Jul 9.
Ref 11 Characterizing the patterns of clonal selection in circulating tumor DNA from patients with colorectal cancer refractory to anti-EGFR treatment. Ann Oncol. 2015 Apr;26(4):731-736. doi: 10.1093/annonc/mdv005. Epub 2015 Jan 26.
Ref 12 Heterogeneity of Acquired Resistance to Anti-EGFR Monoclonal Antibodies in Patients with Metastatic Colorectal Cancer. Clin Cancer Res. 2017 May 15;23(10):2414-2422. doi: 10.1158/1078-0432.CCR-16-1863. Epub 2016 Oct 25.
Ref 13 Acquired RAS or EGFR mutations and duration of response to EGFR blockade in colorectal cancer. Nat Commun. 2016 Dec 8;7:13665. doi: 10.1038/ncomms13665.

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