The potential role of abnormal E-cadherin and α-, β- and γ-catenin immunoreactivity in the determination of the biological behaviour of keratoacanthoma

Evangelia Papadavid, M. Pignatelli, S. Zakynthinos, T. Krausz, A. C. Chu

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Background: Failure of E-cadherin and its associated proteins α-, β- and γ-catenin is believed to lead to disruption of cell-cell adhesion and to contribute to neoplasia. Objectives: To determine the pattern of E-cadherin and α-, β- and γ-catenin immunostaining in keratoacanthoma (KA) and to evaluate its potential value in routine histopathology in differentiating KA with benign from that with malignant biological behaviour. Methods: We examined the expression of E-cadherin and α-, β- and γ-catenin in KA and correlated the histopathological features with the immunohistochemical findings. Next, we compared the immunohistochemical findings of KA with those found in malignant (squamous cell carcinoma, SCC) and benign (warts) lesions. In addition to the established histopathological criteria we used the Ki-67 index, a well-known marker of cell proliferation, Immnunoperoxidase staining of E-cadherin and α-, β- and γ-catenin, and Ki-67 determination, were performed in paraffin-embedded sections of 12 KAs taken from archival material. On reviewing the histology, seven of the 12 KAs were characterized as 'classical' KA. and the rest as 'borderline' KA or KA resembling SCC. Additionally, 28 well, nine moderately and five poorly differentiated SCCs and 20 warts were examined. Results: Most 'classical' KAs (79-86%) showed normal membranous immunostaining and a low Ki-67 index. The remaining 'classical' KAs showed abnormal expression, in a staining pattern resembling that of well-differentiated SCC. All 'borderline' KAs showed a high Ki-67 index (> 40%) and abnormal expression of the adhesion molecules studied, identical to that of poorly differentiated SCC. Expression of E-cadherin and α-, β- and γ-catenin was found to be more frequently abnormal in 'borderline' KA compared with that in 'classical' KA (P <0.05). Among E-cadherin and α-, β- and γ-catenin expression and Ki-67 index, only the expression of β-catenin was more frequently found to be abnormal in total SCC than in total KA (P <0.05). Expression of E-cadherin and α-, β- and γ-catenin was more frequently found to be abnormal in well-differentiated SCC than in 'classical' KA (P <0.05). In total, as well as in 'classical' or 'borderline' KA, an agreement between expression of E-cadherin and of catenins was seen. Conclusions: These findings suggest that E-cadherin and catenins may be very helpful in distinguishing between 'classical' and 'borderline' KA, as the expression of these adhesion molecules in 'classical' KA is identical to that found in normal epidermis, overlapping with well-differentiated SCC in some cases. In 'borderline' KA, expression of adhesion molecules is identical to that in poorly differentiated SCC.

Original languageEnglish
Pages (from-to)582-589
Number of pages8
JournalBritish Journal of Dermatology
Volume145
Issue number4
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Keratoacanthoma
Catenins
Cadherins
Squamous Cell Carcinoma
Warts
Staining and Labeling

Keywords

  • α-catenin
  • β-cadherin
  • β-catenin
  • γ-catenin
  • Immunohistochemistry
  • Keratoacanthoma
  • Squamous cell carcinoma

ASJC Scopus subject areas

  • Dermatology

Cite this

The potential role of abnormal E-cadherin and α-, β- and γ-catenin immunoreactivity in the determination of the biological behaviour of keratoacanthoma. / Papadavid, Evangelia; Pignatelli, M.; Zakynthinos, S.; Krausz, T.; Chu, A. C.

In: British Journal of Dermatology, Vol. 145, No. 4, 2001, p. 582-589.

Research output: Contribution to journalArticle

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abstract = "Background: Failure of E-cadherin and its associated proteins α-, β- and γ-catenin is believed to lead to disruption of cell-cell adhesion and to contribute to neoplasia. Objectives: To determine the pattern of E-cadherin and α-, β- and γ-catenin immunostaining in keratoacanthoma (KA) and to evaluate its potential value in routine histopathology in differentiating KA with benign from that with malignant biological behaviour. Methods: We examined the expression of E-cadherin and α-, β- and γ-catenin in KA and correlated the histopathological features with the immunohistochemical findings. Next, we compared the immunohistochemical findings of KA with those found in malignant (squamous cell carcinoma, SCC) and benign (warts) lesions. In addition to the established histopathological criteria we used the Ki-67 index, a well-known marker of cell proliferation, Immnunoperoxidase staining of E-cadherin and α-, β- and γ-catenin, and Ki-67 determination, were performed in paraffin-embedded sections of 12 KAs taken from archival material. On reviewing the histology, seven of the 12 KAs were characterized as 'classical' KA. and the rest as 'borderline' KA or KA resembling SCC. Additionally, 28 well, nine moderately and five poorly differentiated SCCs and 20 warts were examined. Results: Most 'classical' KAs (79-86{\%}) showed normal membranous immunostaining and a low Ki-67 index. The remaining 'classical' KAs showed abnormal expression, in a staining pattern resembling that of well-differentiated SCC. All 'borderline' KAs showed a high Ki-67 index (> 40{\%}) and abnormal expression of the adhesion molecules studied, identical to that of poorly differentiated SCC. Expression of E-cadherin and α-, β- and γ-catenin was found to be more frequently abnormal in 'borderline' KA compared with that in 'classical' KA (P <0.05). Among E-cadherin and α-, β- and γ-catenin expression and Ki-67 index, only the expression of β-catenin was more frequently found to be abnormal in total SCC than in total KA (P <0.05). Expression of E-cadherin and α-, β- and γ-catenin was more frequently found to be abnormal in well-differentiated SCC than in 'classical' KA (P <0.05). In total, as well as in 'classical' or 'borderline' KA, an agreement between expression of E-cadherin and of catenins was seen. Conclusions: These findings suggest that E-cadherin and catenins may be very helpful in distinguishing between 'classical' and 'borderline' KA, as the expression of these adhesion molecules in 'classical' KA is identical to that found in normal epidermis, overlapping with well-differentiated SCC in some cases. In 'borderline' KA, expression of adhesion molecules is identical to that in poorly differentiated SCC.",
keywords = "α-catenin, β-cadherin, β-catenin, γ-catenin, Immunohistochemistry, Keratoacanthoma, Squamous cell carcinoma",
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year = "2001",
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TY - JOUR

T1 - The potential role of abnormal E-cadherin and α-, β- and γ-catenin immunoreactivity in the determination of the biological behaviour of keratoacanthoma

AU - Papadavid, Evangelia

AU - Pignatelli, M.

AU - Zakynthinos, S.

AU - Krausz, T.

AU - Chu, A. C.

PY - 2001

Y1 - 2001

N2 - Background: Failure of E-cadherin and its associated proteins α-, β- and γ-catenin is believed to lead to disruption of cell-cell adhesion and to contribute to neoplasia. Objectives: To determine the pattern of E-cadherin and α-, β- and γ-catenin immunostaining in keratoacanthoma (KA) and to evaluate its potential value in routine histopathology in differentiating KA with benign from that with malignant biological behaviour. Methods: We examined the expression of E-cadherin and α-, β- and γ-catenin in KA and correlated the histopathological features with the immunohistochemical findings. Next, we compared the immunohistochemical findings of KA with those found in malignant (squamous cell carcinoma, SCC) and benign (warts) lesions. In addition to the established histopathological criteria we used the Ki-67 index, a well-known marker of cell proliferation, Immnunoperoxidase staining of E-cadherin and α-, β- and γ-catenin, and Ki-67 determination, were performed in paraffin-embedded sections of 12 KAs taken from archival material. On reviewing the histology, seven of the 12 KAs were characterized as 'classical' KA. and the rest as 'borderline' KA or KA resembling SCC. Additionally, 28 well, nine moderately and five poorly differentiated SCCs and 20 warts were examined. Results: Most 'classical' KAs (79-86%) showed normal membranous immunostaining and a low Ki-67 index. The remaining 'classical' KAs showed abnormal expression, in a staining pattern resembling that of well-differentiated SCC. All 'borderline' KAs showed a high Ki-67 index (> 40%) and abnormal expression of the adhesion molecules studied, identical to that of poorly differentiated SCC. Expression of E-cadherin and α-, β- and γ-catenin was found to be more frequently abnormal in 'borderline' KA compared with that in 'classical' KA (P <0.05). Among E-cadherin and α-, β- and γ-catenin expression and Ki-67 index, only the expression of β-catenin was more frequently found to be abnormal in total SCC than in total KA (P <0.05). Expression of E-cadherin and α-, β- and γ-catenin was more frequently found to be abnormal in well-differentiated SCC than in 'classical' KA (P <0.05). In total, as well as in 'classical' or 'borderline' KA, an agreement between expression of E-cadherin and of catenins was seen. Conclusions: These findings suggest that E-cadherin and catenins may be very helpful in distinguishing between 'classical' and 'borderline' KA, as the expression of these adhesion molecules in 'classical' KA is identical to that found in normal epidermis, overlapping with well-differentiated SCC in some cases. In 'borderline' KA, expression of adhesion molecules is identical to that in poorly differentiated SCC.

AB - Background: Failure of E-cadherin and its associated proteins α-, β- and γ-catenin is believed to lead to disruption of cell-cell adhesion and to contribute to neoplasia. Objectives: To determine the pattern of E-cadherin and α-, β- and γ-catenin immunostaining in keratoacanthoma (KA) and to evaluate its potential value in routine histopathology in differentiating KA with benign from that with malignant biological behaviour. Methods: We examined the expression of E-cadherin and α-, β- and γ-catenin in KA and correlated the histopathological features with the immunohistochemical findings. Next, we compared the immunohistochemical findings of KA with those found in malignant (squamous cell carcinoma, SCC) and benign (warts) lesions. In addition to the established histopathological criteria we used the Ki-67 index, a well-known marker of cell proliferation, Immnunoperoxidase staining of E-cadherin and α-, β- and γ-catenin, and Ki-67 determination, were performed in paraffin-embedded sections of 12 KAs taken from archival material. On reviewing the histology, seven of the 12 KAs were characterized as 'classical' KA. and the rest as 'borderline' KA or KA resembling SCC. Additionally, 28 well, nine moderately and five poorly differentiated SCCs and 20 warts were examined. Results: Most 'classical' KAs (79-86%) showed normal membranous immunostaining and a low Ki-67 index. The remaining 'classical' KAs showed abnormal expression, in a staining pattern resembling that of well-differentiated SCC. All 'borderline' KAs showed a high Ki-67 index (> 40%) and abnormal expression of the adhesion molecules studied, identical to that of poorly differentiated SCC. Expression of E-cadherin and α-, β- and γ-catenin was found to be more frequently abnormal in 'borderline' KA compared with that in 'classical' KA (P <0.05). Among E-cadherin and α-, β- and γ-catenin expression and Ki-67 index, only the expression of β-catenin was more frequently found to be abnormal in total SCC than in total KA (P <0.05). Expression of E-cadherin and α-, β- and γ-catenin was more frequently found to be abnormal in well-differentiated SCC than in 'classical' KA (P <0.05). In total, as well as in 'classical' or 'borderline' KA, an agreement between expression of E-cadherin and of catenins was seen. Conclusions: These findings suggest that E-cadherin and catenins may be very helpful in distinguishing between 'classical' and 'borderline' KA, as the expression of these adhesion molecules in 'classical' KA is identical to that found in normal epidermis, overlapping with well-differentiated SCC in some cases. In 'borderline' KA, expression of adhesion molecules is identical to that in poorly differentiated SCC.

KW - α-catenin

KW - β-cadherin

KW - β-catenin

KW - γ-catenin

KW - Immunohistochemistry

KW - Keratoacanthoma

KW - Squamous cell carcinoma

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