Development and characterisation of a monoclonal antibody family against aquaporin 1 (AQP1) and aquaporin 4 (AQP4)

Gergely Nagy, György Szekeres, K. Kvell, T. Berki, P. Németh

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Recent studies have discovered the existence of water-channel molecules, the so called aquaporins (AQP) presumably involved in active, ATP dependent water transport between the intracellular and extracellular compartments. Both genetic and protein sequences and structures of the AQPs are known and crystallographic analyses of some members of the AQP family have been performed. Specific antibodies are required to examine their histological locations and analyse their roles in physiological and pathological pathways of water transportation and osmotic regulation. Until recently some polyclonal antibodies have been developed against certain members of the AQP family. However, to date highly specific monoclonal antibodies against aquaporins do not exist. We have developed a monoclonal antibody family against the aquaporin 1 (AQP1) and aquaporin 4 (AQP4) molecules. Well-conserved epitop sequences of AQP1 and AQP4 proteins were selected by computer analysis and their synthetic peptide fragments were used as the antigens of immunisation and the following screening. Antibodies were characterised by immunoserological methods (ELISA, dot-blot and immunoblot), flow cytometry and immunohistochemistry of formaldehyde-fixed and paraffin-embedded tissue samples. RT-PCR tests controlled the specificity of the immune reactions. Our monoclonal antibodies recognised AQP1 and AQP4 in all the techniques mentioned above and apparently they are useful both in various quantitative and qualitative measurements of the expressions of AQP1 and AQP4 in several species (human, rat, mouse, invertebrates, even plants). According to preliminary immunohistochemical studies our monoclonal anti-AQP1 and anti-AQP4 antibodies are appropriate tools of patho-morphological examinations on routine formol-paraffin tissue samples.

Original languageEnglish
Pages (from-to)115-124
Number of pages10
JournalPathology and Oncology Research
Volume8
Issue number2
Publication statusPublished - 2002

Fingerprint

Aquaporin 1
Aquaporin 4
Aquaporins
Monoclonal Antibodies
Antibodies
Paraffin
Formaldehyde
Peptide Fragments
Water
Conserved Sequence
Invertebrates
Immunization
Flow Cytometry
Adenosine Triphosphate
Enzyme-Linked Immunosorbent Assay
Immunohistochemistry
Antigens
Polymerase Chain Reaction
Proteins

Keywords

  • Anti-aquaporin antibodies
  • Aquaporin 1
  • Aquaporin 4
  • Immunohistochemistry
  • Monoclonal antibody

ASJC Scopus subject areas

  • Cancer Research
  • Oncology
  • Pathology and Forensic Medicine

Cite this

Development and characterisation of a monoclonal antibody family against aquaporin 1 (AQP1) and aquaporin 4 (AQP4). / Nagy, Gergely; Szekeres, György; Kvell, K.; Berki, T.; Németh, P.

In: Pathology and Oncology Research, Vol. 8, No. 2, 2002, p. 115-124.

Research output: Contribution to journalArticle

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