Expression of androgen, estrogen, progesterone, and growth hormone receptors in vascular malformations.
Plast Reconstr Surg
; 129(6): 919e-924e, 2012 Jun.
Article
en En
| MEDLINE
| ID: mdl-22634690
ABSTRACT
BACKGROUND:
Vascular malformations frequently enlarge during adolescence, suggesting that hormones may be involved. The purpose of this study was to determine whether pubertal hormone receptors are present in vascular malformations and whether they differ from normal tissue.METHODS:
Tissue specimens (arteriovenous malformation, lymphatic malformation, and venous malformation) were prospectively collected from patients undergoing resection. Immunohistochemistry was used to determine the presence of androgen, estrogen, progesterone, and growth hormone receptors. The effects of age, sex, location, and malformation type on receptor expression were analyzed. Age-, sex-, and location-matched normal tissues served as controls.RESULTS:
Forty-five vascular malformation specimens were collected arteriovenous malformation (n = 11), lymphatic malformation (n = 20), and venous malformation (n = 14). Growth hormone receptor expression was increased in arteriovenous malformation (72.7 percent), lymphatic malformation (65.0 percent), and venous malformation (57.1 percent) tissues compared with controls (25.8 percent) (p < 0.05). Growth hormone receptor was present primarily in the endothelium/perivasculature of malformations (93.1 percent), whereas in normal tissue growth hormone receptor was located only in the stroma (p < 0.0001). Neither age, nor sex, nor location influenced receptor expression (p = 0.9). No differences in androgen receptor, estrogen receptor, and progesterone receptor staining were found between malformations and control samples (p = 0.7).CONCLUSIONS:
Growth hormone receptor is overexpressed and principally located in the vessels of vascular malformations. Growth hormone might contribute to the expansion of vascular malformations.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Vasos Sanguíneos
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Receptores de Somatotropina
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Receptores Androgénicos
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Receptores de Progesterona
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Receptores de Estrógenos
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Anomalías Linfáticas
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Malformaciones Vasculares
Tipo de estudio:
Observational_studies
Límite:
Adolescent
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Adult
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
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Middle aged
Idioma:
En
Año:
2012
Tipo del documento:
Article