Evaluation of p63 expression in different grades of meningiomas

Maryam JavanBakhti, Srijit Das, Swaminathan Manikam, Hayati Abdul Rahman, Rozita Hod, Siti Aishah Md Ali

Research output: Contribution to journalArticle

Abstract

Objectives: Tumour behavior in meningiomas can be difficult to predict based on histology alone. Our main aim was to evaluate the expression of this marker in different grades of meningiomas. Methods: We investigated expression of p63 in different histological grades of meningiomas. We studied the p63 expression in 41 cases of meningiomas from different histological types (24 cases of benign, 13 cases of atypical and 4 cases of malignant) by the immunohistochemical technique using a monoclonal anti-p63 antibody, clone 4A4. Nuclear staining was scored semiquantitatively based on distribution within neoplastic cells; 0, no staining 1, 50% or less of the cells and 2, more than 50% of the cells. Cytoplasmic staining was evaluated as positive or negative. Results: It was observed that 41 cases of meningiomas 11 (26.8%) cases did not show any p63 expression and 30 (73.2%) cases showed p63 staining in the nucleus. Out of these 30 cases, 15 (36.6%) of the cases were grade I, 12 (29.3%) cases grade II and 3 (7.3%) cases were grade III. Two (14.5% within the grade II and 4.9% within the all cases) of the cases of grade II also showed weak positive cytoplasmic staining. p63 staining was not associated or correlated and meningioma grade (P <0.108) for the 41 cases analyzed. Conclusion: The nuclear expression of p63 is not a reliable indicator for histological grading of meningiomas and that the cytoplasmic expression of p63 is also not helpful to differentiate the higher grades of meningiomas from the lower grade.

Original languageEnglish
Pages (from-to)402-405
Number of pages4
JournalInternational Medical Journal
Volume22
Issue number5
Publication statusPublished - 2015

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Meningioma
Staining and Labeling
Anti-Idiotypic Antibodies
Histology
Clone Cells
Monoclonal Antibodies

Keywords

  • Immunohistochemistry
  • Meningioma
  • P63
  • Pathology

ASJC Scopus subject areas

  • Medicine(all)

Cite this

JavanBakhti, M., Das, S., Manikam, S., Rahman, H. A., Hod, R., & Ali, S. A. M. (2015). Evaluation of p63 expression in different grades of meningiomas. International Medical Journal, 22(5), 402-405.

Evaluation of p63 expression in different grades of meningiomas. / JavanBakhti, Maryam; Das, Srijit; Manikam, Swaminathan; Rahman, Hayati Abdul; Hod, Rozita; Ali, Siti Aishah Md.

In: International Medical Journal, Vol. 22, No. 5, 2015, p. 402-405.

Research output: Contribution to journalArticle

JavanBakhti, M, Das, S, Manikam, S, Rahman, HA, Hod, R & Ali, SAM 2015, 'Evaluation of p63 expression in different grades of meningiomas', International Medical Journal, vol. 22, no. 5, pp. 402-405.
JavanBakhti, Maryam ; Das, Srijit ; Manikam, Swaminathan ; Rahman, Hayati Abdul ; Hod, Rozita ; Ali, Siti Aishah Md. / Evaluation of p63 expression in different grades of meningiomas. In: International Medical Journal. 2015 ; Vol. 22, No. 5. pp. 402-405.
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abstract = "Objectives: Tumour behavior in meningiomas can be difficult to predict based on histology alone. Our main aim was to evaluate the expression of this marker in different grades of meningiomas. Methods: We investigated expression of p63 in different histological grades of meningiomas. We studied the p63 expression in 41 cases of meningiomas from different histological types (24 cases of benign, 13 cases of atypical and 4 cases of malignant) by the immunohistochemical technique using a monoclonal anti-p63 antibody, clone 4A4. Nuclear staining was scored semiquantitatively based on distribution within neoplastic cells; 0, no staining 1, 50{\%} or less of the cells and 2, more than 50{\%} of the cells. Cytoplasmic staining was evaluated as positive or negative. Results: It was observed that 41 cases of meningiomas 11 (26.8{\%}) cases did not show any p63 expression and 30 (73.2{\%}) cases showed p63 staining in the nucleus. Out of these 30 cases, 15 (36.6{\%}) of the cases were grade I, 12 (29.3{\%}) cases grade II and 3 (7.3{\%}) cases were grade III. Two (14.5{\%} within the grade II and 4.9{\%} within the all cases) of the cases of grade II also showed weak positive cytoplasmic staining. p63 staining was not associated or correlated and meningioma grade (P <0.108) for the 41 cases analyzed. Conclusion: The nuclear expression of p63 is not a reliable indicator for histological grading of meningiomas and that the cytoplasmic expression of p63 is also not helpful to differentiate the higher grades of meningiomas from the lower grade.",
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AB - Objectives: Tumour behavior in meningiomas can be difficult to predict based on histology alone. Our main aim was to evaluate the expression of this marker in different grades of meningiomas. Methods: We investigated expression of p63 in different histological grades of meningiomas. We studied the p63 expression in 41 cases of meningiomas from different histological types (24 cases of benign, 13 cases of atypical and 4 cases of malignant) by the immunohistochemical technique using a monoclonal anti-p63 antibody, clone 4A4. Nuclear staining was scored semiquantitatively based on distribution within neoplastic cells; 0, no staining 1, 50% or less of the cells and 2, more than 50% of the cells. Cytoplasmic staining was evaluated as positive or negative. Results: It was observed that 41 cases of meningiomas 11 (26.8%) cases did not show any p63 expression and 30 (73.2%) cases showed p63 staining in the nucleus. Out of these 30 cases, 15 (36.6%) of the cases were grade I, 12 (29.3%) cases grade II and 3 (7.3%) cases were grade III. Two (14.5% within the grade II and 4.9% within the all cases) of the cases of grade II also showed weak positive cytoplasmic staining. p63 staining was not associated or correlated and meningioma grade (P <0.108) for the 41 cases analyzed. Conclusion: The nuclear expression of p63 is not a reliable indicator for histological grading of meningiomas and that the cytoplasmic expression of p63 is also not helpful to differentiate the higher grades of meningiomas from the lower grade.

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