Research output: Contribution to journal › Article › peer-review
Differential protein expression of mitogen-activated protein kinases in erythrocytes and liver of lamprey Lampetra fluviatilis on the course of prespawning starvation. / Khvorova, Irina A.; Nadei, Olga V.; Agalakova, Natalia I.
In: Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology, Vol. 264, 111108, 02.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Differential protein expression of mitogen-activated protein kinases in erythrocytes and liver of lamprey Lampetra fluviatilis on the course of prespawning starvation
AU - Khvorova, Irina A.
AU - Nadei, Olga V.
AU - Agalakova, Natalia I.
N1 - Publisher Copyright: © 2021 Elsevier Inc.
PY - 2022/2
Y1 - 2022/2
N2 - The study was designed to identify the types of mitogen-activated protein kinases (MAPKs) in erythrocytes and liver tissues of river lamprey Lampetra fluviatilis and monitor the changes in protein expression levels of found enzymes on the course of prespawning starvation (from November to the end of May). Immunoreactivity of the native and phosphorylated forms of ERK1/2, JNK and p38 was examined in the cytosolic and membrane cell fractions. Both lamprey erythrocytes and liver were found to highly express ERK1/2 and JNK, whereas only trace amounts of p38 were revealed in hepatic tissues. ERK1/2 was identified in cytosolic and membrane fractions, whereas JNK and p38 were predominantly cytosolic enzymes. Total cellular amounts of ERK1/2 and phospho-ERK1/2 in both erythrocytes and liver tissues appeared to be relatively stable on the course of prespawning starvation. However, before spawning ERK1/2 translocated from cytosol to membranes, with partial decline of its cytoplasmic expression being compensated by increases in membrane-bound pool. Immunoreactivity of cytoplasmic JNK, phospho-JNK and p38 were stable from November to March, but sharply decreased before spawning exhibiting almost negligible levels in May, which suggests the depletion of their cellular fractions. Most probably, ERK1/2 plays more important role in mediating adaptive responses of erythrocytes and liver tissues to conditions of natural starvation and maintenance of cell viability before spawning and death of animals in May.
AB - The study was designed to identify the types of mitogen-activated protein kinases (MAPKs) in erythrocytes and liver tissues of river lamprey Lampetra fluviatilis and monitor the changes in protein expression levels of found enzymes on the course of prespawning starvation (from November to the end of May). Immunoreactivity of the native and phosphorylated forms of ERK1/2, JNK and p38 was examined in the cytosolic and membrane cell fractions. Both lamprey erythrocytes and liver were found to highly express ERK1/2 and JNK, whereas only trace amounts of p38 were revealed in hepatic tissues. ERK1/2 was identified in cytosolic and membrane fractions, whereas JNK and p38 were predominantly cytosolic enzymes. Total cellular amounts of ERK1/2 and phospho-ERK1/2 in both erythrocytes and liver tissues appeared to be relatively stable on the course of prespawning starvation. However, before spawning ERK1/2 translocated from cytosol to membranes, with partial decline of its cytoplasmic expression being compensated by increases in membrane-bound pool. Immunoreactivity of cytoplasmic JNK, phospho-JNK and p38 were stable from November to March, but sharply decreased before spawning exhibiting almost negligible levels in May, which suggests the depletion of their cellular fractions. Most probably, ERK1/2 plays more important role in mediating adaptive responses of erythrocytes and liver tissues to conditions of natural starvation and maintenance of cell viability before spawning and death of animals in May.
KW - Erythrocytes
KW - Lamprey
KW - Liver
KW - Mitogen-activated protein kinases
KW - Prespawning starvation
KW - Subcellular Fractions/enzymology
KW - Male
KW - Liver/enzymology
KW - Starvation/blood
KW - Erythrocytes/enzymology
KW - Reproduction
KW - Animals
KW - Mitogen-Activated Protein Kinases/blood
KW - Female
KW - Lampreys/blood
KW - Seasons
KW - Fish Proteins/blood
UR - http://www.scopus.com/inward/record.url?scp=85118490773&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/c81f37a0-a3bb-3bee-897c-1961e5b4a3d1/
U2 - 10.1016/j.cbpa.2021.111108
DO - 10.1016/j.cbpa.2021.111108
M3 - Article
C2 - 34728403
AN - SCOPUS:85118490773
VL - 264
JO - Comparative Biochemistry and Physiology. Part A: Physiology
JF - Comparative Biochemistry and Physiology. Part A: Physiology
SN - 1095-6433
M1 - 111108
ER -
ID: 98434276