Monoclonal antibody MA454 reveals a heterogeneous expression pattern of MAGE-1 antigen in formalin-fixed paraffin embedded lung tumours
2000

Study of MAGE-1 Antigen in Lung Tumors

Sample size: 59 publication Evidence: moderate

Author Information

Author(s): Jungbluth A A, Stockert E, Chen Y-T, Kolb D, Iversen K, Coplan K, Williamson B, Altorki N, Busam K J, Old L J

Primary Institution: Ludwig Institute for Cancer Research at Memorial Sloan-Kettering Cancer Center

Hypothesis

The study investigates the expression pattern of MAGE-1 antigen in lung tumors using a monoclonal antibody.

Conclusion

MAGE-1 is expressed heterogeneously in lung tumors, indicating it may not be a reliable target for immunotherapy.

Supporting Evidence

  • MA454 was positive in 19 out of 59 lung tumor cases, indicating a 32% expression rate.
  • MAGE-1 mRNA was found in 32% of the cases available for RT-PCR.
  • 15 out of 19 MA454-reactive tumors showed a highly heterogeneous pattern of expression.

Takeaway

The researchers looked at a special protein in lung tumors and found it shows up in different amounts, which means it might not be a good target for treatment.

Methodology

Immunohistochemical analysis and RT-PCR were used to assess MAGE-1 expression in lung tumors.

Limitations

The study may not fully represent all lung tumors due to the heterogeneous expression of MAGE-1.

Digital Object Identifier (DOI)

10.1054/bjoc.2000.1291

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