The serum amyloid A (SAA) and haptoglobin (Hp) are the most prominent acute phase proteins (APPs) in cow. Liver mainly produces APPs, but extra hepatic expression has also been demonstrated in some tissues. The major aim of the present study was to assess the constitutive SAA and Hp mRNA expression by quantitative PCR (qPCR) in a wide panel of 33 bovine tissues, including gastrointestinal tract, respiratory system, urogenital system, mammary gland, hematopoietic system, central nervous system, eye, thyroid and heart. Normalization of gene expression in different samples requires reference genes, which are stably expressed. Therefore, seven reference genes were investigated (ACTB, GAPDH, HMBS, SDHA, YWHAZ, SF3A1, EEF1A2) and three genes, namely SF3A1, HMBS and ACTB, were selected after assessing their stability with geNorm and NormFinder() softwares. The qPCR analysis confirmed liver as the principal source of SAA and Hp, but also identified both APPs' mRNA in almost all tissues. The highest expression rate of SAA was found in thyroid, followed by pancreas and submandibulary gland. Hp mRNA expression was detected at high concentration in pancreas and submandibulary gland. The present data indicated a widespread expression of SAA and Hp also in non pathological conditions, thus envisaging a possible role as immunomodulatory and protective molecules. To understand where SAA and Hp come from is the prerequisite to their utilization as Acute Phase Reaction biomarkers.

Widespread expression of SAA and Hp RNA in bovine tissues after evaluation of suitable reference genes / C. Lecchi, F. Dilda, P. Sartorelli, F. Ceciliani. - In: VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY. - ISSN 0165-2427. - 145:1/2(2012 Jan), pp. 556-562.

Widespread expression of SAA and Hp RNA in bovine tissues after evaluation of suitable reference genes

C. Lecchi
Primo
;
F. Dilda
Secondo
;
P. Sartorelli
Penultimo
;
F. Ceciliani
Ultimo
2012

Abstract

The serum amyloid A (SAA) and haptoglobin (Hp) are the most prominent acute phase proteins (APPs) in cow. Liver mainly produces APPs, but extra hepatic expression has also been demonstrated in some tissues. The major aim of the present study was to assess the constitutive SAA and Hp mRNA expression by quantitative PCR (qPCR) in a wide panel of 33 bovine tissues, including gastrointestinal tract, respiratory system, urogenital system, mammary gland, hematopoietic system, central nervous system, eye, thyroid and heart. Normalization of gene expression in different samples requires reference genes, which are stably expressed. Therefore, seven reference genes were investigated (ACTB, GAPDH, HMBS, SDHA, YWHAZ, SF3A1, EEF1A2) and three genes, namely SF3A1, HMBS and ACTB, were selected after assessing their stability with geNorm and NormFinder() softwares. The qPCR analysis confirmed liver as the principal source of SAA and Hp, but also identified both APPs' mRNA in almost all tissues. The highest expression rate of SAA was found in thyroid, followed by pancreas and submandibulary gland. Hp mRNA expression was detected at high concentration in pancreas and submandibulary gland. The present data indicated a widespread expression of SAA and Hp also in non pathological conditions, thus envisaging a possible role as immunomodulatory and protective molecules. To understand where SAA and Hp come from is the prerequisite to their utilization as Acute Phase Reaction biomarkers.
Acute phase protein; Cow; Haptoglobin; Reference genes; Serum Amyloid A
Settore VET/03 - Patologia Generale e Anatomia Patologica Veterinaria
gen-2012
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/169507
Citazioni
  • ???jsp.display-item.citation.pmc??? 7
  • Scopus 34
  • ???jsp.display-item.citation.isi??? 33
social impact