Observational studyAsian Pacific journal of cancer prevention : APJCP2024
Expression of MAGE A1 to MAGE A10 in the Forceps Biopsy and Bronchoalveolar Lavage Specimens from Patients with the Central Lung Tumor.
Observational study in Asian Pacific journal of cancer prevention : APJCP, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThe objective was to evaluate the expression of the MAGE A subtypes family in the central lung tumor patients from the forceps biopsy (FB) and bronchoalveolar lavage (BAL) specimens and to analyze its association with the histopathological examination.
methodsAn observational study was conducted on 32 FB and 43 BAL specimens from patients with central lung tumors. All samples were assessed for glyceraldehyde-3-phosphate dehydrogenase (GAPDH) expression by reverse transcription (RT) polymerase chain reaction (PCR) and samples showing a positive result were examined for MAGE A subtypes family expression by nested-RT PCR.
resultThe MAGE A1 to MAGE A10 genes were highly expressed in the FB and BAL specimens from patients with central lung tumors. The MAGE A1 to MAGE A10 gene and MAGE A1 to MAGE A6 gene were expressed in 60/75 (80%) and 16/75 (21.3 %), respectively. MAGE A8, MAGE A9, and MAGE A10 were the most commonly expressed. In FB specimens diagnosed without malignant cells, MAGE A1 to MAGE A10 and MAGE A1 to MAGE A6 were positive in 16/18 (88.9 %) and 1/18 (5.6 %), respectively. In all BAL specimens were diagnosed with no malignant cells, but MAGE A1 to MAGE A10 and MAGE A1 to MAGE A6 showed positive results in 36/43 (83.7%) and 9/43 (20.9%) %), respectively. There was a significant association between MAGE A1 to MAGE A6 expression with histopathological diagnosis.
conclusionThe MAGE A subtype family genes are highly expressed in central lung tumor patients from FB and BAL specimens, even in specimens that were diagnosed with no malignant cells. All BAL specimens were diagnosed as no malignant cells, but expression of the MAGE A subfamily genes was found in more than 80% of the specimens. These observations suggest that combining histopathological and molecular examination could improve the diagnosis of lung malignancy.
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