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Mizobe K, Kawabe Y, Bando Y, et al. Localization of hsp27 in the rat submandibular gland following the application of various surgical treatments. Acta Histochem Cytochem. 2014;47(6):255-64doi: 10.1267/ahc.14037.
Mizobe, K., Kawabe, Y., Bando, Y., Sakiyama, K., Araki, H., & Amano, O. (2014). Localization of hsp27 in the rat submandibular gland following the application of various surgical treatments. Acta histochemica et cytochemica, 47(6), 255-64. https://doi.org/10.1267/ahc.14037
Mizobe, Kenichi, et al. "Localization of hsp27 in the rat submandibular gland following the application of various surgical treatments." Acta histochemica et cytochemica vol. 47,6 (2014): 255-64. doi: https://doi.org/10.1267/ahc.14037
Mizobe K, Kawabe Y, Bando Y, Sakiyama K, Araki H, Amano O. Localization of hsp27 in the rat submandibular gland following the application of various surgical treatments. Acta Histochem Cytochem. 2014;47(6):255-64. doi: 10.1267/ahc.14037. Epub 2014 Nov 21. PMID: 25859059; PMCID: PMC4387262.
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Acta Histochem Cytochem. 2014;47(6):255-64. doi: 10.1267/ahc.14037. Epub 2014 Nov 21.

Localization of hsp27 in the rat submandibular gland following the application of various surgical treatments.

Acta histochemica et cytochemica

Kenichi Mizobe, Yoshihiro Kawabe, Yasuhiko Bando, Koji Sakiyama, Hisao Araki, Osamu Amano

Affiliations

  1. Division of Anatomy, Department of Human Development and Fostering, Meikai University School of Dentistry , 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan ; Division of Oral Rehabilitation, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry.
  2. Division of Anatomy, Department of Human Development and Fostering, Meikai University School of Dentistry , 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
  3. Division of Oral Rehabilitation, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry.

PMID: 25859059 PMCID: PMC4387262 DOI: 10.1267/ahc.14037

Abstract

Salivary glands repair and regenerate following various types of injuries and surgical procedures. However, the tissue responses induced in the contralateral glands have yet to be elucidated in detail. Hsp27, a member of the heat-shock protein (Hsp) family, is strongly expressed in physiological environments, particularly during development. Hsp27 was previously shown to play a role in the regulation of acinar cell proliferation and differentiation in the rat submandibular gland. The present study performed the following surgical treatments on the right submandibular glands of adult rats: 1) duct ligation followed by unligation after one week; 2) partial sialoadenectomy; and 3) total sialoadenectomy. Immunohistochemistry for Hsp27 and Ki67 was performed in the experimental and normal contralateral glands, and localization was histologically and morphometrically analyzed. The results obtained revealed the localization of Hsp27 to the intercalated duct in the submandibular glands of non-treated rats. The expression of Hsp27 was strongly induced in both the uninjured contralateral control glands as well as treated glands of experimental rats regardless of the surgical procedure performed. The number of Hsp27-immunopositive cells increased rapidly following surgery, and subsequently returned to the same level as that in non-treated rats after 4 weeks. However, no marked changes were observed in the number of Ki67-immunopositive proliferating cells. Therefore, the change in the number of Hsp27-immunopositive cells may have contributed to compensatory hypertrophy. The results of the present study indicate that the expression of Hsp27 in the intercalated duct in the submandibular gland may play a role in the differentiation of acinar cells.

Keywords: Hsp27; immunohistochemistry; intercalated duct; rat; submandibular sialoadenectomy

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