Microglandular hyperplasia: A model for the de novo emergence and evolution of endocervical reserve cells

Agnieszka K. Witkiewicz, Jonathan L. Hecht, Aida Cviko, Frank D. McKeon, Tan Ince, Christopher P. Crum

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Background: Microglandular hyperplasia (MGH) of the cervix in human beings is associated early with gland proliferation and terminates in mature squamous metaplasia. Using antibodies to basal cell markers, we analyzed biopsies with MGH to profile the distribution and evolution of reserve cells and their relationship to these epithelial components. Design: Serial sections of 24 MGHs were subdivided into (1) early MGH with microacinar proliferation, abundant subnuclear vacuoles, and a paucity of supporting stroma and (2) late MGH with more prominent supporting stroma and/or squamous metaplasia. Serial sections were stained with antibodies to p63, bcl-2, and keratin-5. Results: Three patterns of p63 staining were observed corresponding to the age of the MGH: (1) scattered staining of columnar cells, (2) focal subcolumnar staining in a reserve cell distribution, and (3) linear subcolumnar arrays of p63-positive reserve cells that in some MGHs expanded into a squamous metaplasia. Early acinar proliferations showed weak and focal columnar cell staining followed by focal subcolumnar p63-positive cells. In late lesions, p63 staining was compartmentalized to the extraglandular (or subcolumnar) areas. Stainings of p63, bcl-2, and keratin-5 were concordant. Staining for keratin 14, which localizes to squamous cells, was variable. Conclusions: The immunohistochemical profile in MGH indicates that reserve cells are created in adulthood during specialized columnar proliferations. This columnar to reserve cell transition may produce a stable population of reserve cells or a transition to squamous metaplasia. Similar patterns are seen in cervical neoplasia, suggesting a link between benign and neoplastic cervical epithelial differentiation.

Original languageEnglish
Pages (from-to)154-161
Number of pages8
JournalHuman Pathology
Volume36
Issue number2
DOIs
StatePublished - Feb 1 2005
Externally publishedYes

Fingerprint

Hyperplasia
Staining and Labeling
Metaplasia
Keratin-5
Keratin-14
Antibodies
Population Dynamics
Vacuoles
Cervix Uteri
Epithelial Cells
Biopsy

Keywords

  • bcl-2
  • Cervical neoplasms
  • Keratin
  • Microglandular hyperplasia
  • p63
  • Reserve cells

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Microglandular hyperplasia : A model for the de novo emergence and evolution of endocervical reserve cells. / Witkiewicz, Agnieszka K.; Hecht, Jonathan L.; Cviko, Aida; McKeon, Frank D.; Ince, Tan; Crum, Christopher P.

In: Human Pathology, Vol. 36, No. 2, 01.02.2005, p. 154-161.

Research output: Contribution to journalArticle

Witkiewicz, Agnieszka K. ; Hecht, Jonathan L. ; Cviko, Aida ; McKeon, Frank D. ; Ince, Tan ; Crum, Christopher P. / Microglandular hyperplasia : A model for the de novo emergence and evolution of endocervical reserve cells. In: Human Pathology. 2005 ; Vol. 36, No. 2. pp. 154-161.
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abstract = "Background: Microglandular hyperplasia (MGH) of the cervix in human beings is associated early with gland proliferation and terminates in mature squamous metaplasia. Using antibodies to basal cell markers, we analyzed biopsies with MGH to profile the distribution and evolution of reserve cells and their relationship to these epithelial components. Design: Serial sections of 24 MGHs were subdivided into (1) early MGH with microacinar proliferation, abundant subnuclear vacuoles, and a paucity of supporting stroma and (2) late MGH with more prominent supporting stroma and/or squamous metaplasia. Serial sections were stained with antibodies to p63, bcl-2, and keratin-5. Results: Three patterns of p63 staining were observed corresponding to the age of the MGH: (1) scattered staining of columnar cells, (2) focal subcolumnar staining in a reserve cell distribution, and (3) linear subcolumnar arrays of p63-positive reserve cells that in some MGHs expanded into a squamous metaplasia. Early acinar proliferations showed weak and focal columnar cell staining followed by focal subcolumnar p63-positive cells. In late lesions, p63 staining was compartmentalized to the extraglandular (or subcolumnar) areas. Stainings of p63, bcl-2, and keratin-5 were concordant. Staining for keratin 14, which localizes to squamous cells, was variable. Conclusions: The immunohistochemical profile in MGH indicates that reserve cells are created in adulthood during specialized columnar proliferations. This columnar to reserve cell transition may produce a stable population of reserve cells or a transition to squamous metaplasia. Similar patterns are seen in cervical neoplasia, suggesting a link between benign and neoplastic cervical epithelial differentiation.",
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AB - Background: Microglandular hyperplasia (MGH) of the cervix in human beings is associated early with gland proliferation and terminates in mature squamous metaplasia. Using antibodies to basal cell markers, we analyzed biopsies with MGH to profile the distribution and evolution of reserve cells and their relationship to these epithelial components. Design: Serial sections of 24 MGHs were subdivided into (1) early MGH with microacinar proliferation, abundant subnuclear vacuoles, and a paucity of supporting stroma and (2) late MGH with more prominent supporting stroma and/or squamous metaplasia. Serial sections were stained with antibodies to p63, bcl-2, and keratin-5. Results: Three patterns of p63 staining were observed corresponding to the age of the MGH: (1) scattered staining of columnar cells, (2) focal subcolumnar staining in a reserve cell distribution, and (3) linear subcolumnar arrays of p63-positive reserve cells that in some MGHs expanded into a squamous metaplasia. Early acinar proliferations showed weak and focal columnar cell staining followed by focal subcolumnar p63-positive cells. In late lesions, p63 staining was compartmentalized to the extraglandular (or subcolumnar) areas. Stainings of p63, bcl-2, and keratin-5 were concordant. Staining for keratin 14, which localizes to squamous cells, was variable. Conclusions: The immunohistochemical profile in MGH indicates that reserve cells are created in adulthood during specialized columnar proliferations. This columnar to reserve cell transition may produce a stable population of reserve cells or a transition to squamous metaplasia. Similar patterns are seen in cervical neoplasia, suggesting a link between benign and neoplastic cervical epithelial differentiation.

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