The Impact of Perinatal Cobalt Chloride Exposure on Extramedullary Erythropoiesis, Tissue Iron Levels, and Transferrin Receptor Expression in Mice

Yordanka Gluhcheva, Ekaterina Pavlova, Emilia Petrova, Alexey A. Tinkov, Olga P. Ajsuvakova, Margarita G. Skalnaya, Ivelin Vladov, Anatoly V. Skalny

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The objective of the present study was to elucidate the effect of perinatal cobalt chloride (CoCl2) exposure on extramedullary erythropoiesis in suckling mice in relation to iron (Fe) content and transferrin receptor (TfR) expression. Pregnant ICR mice were subjected to a daily dose of 75 mg CoCl2/kg body weight 2–3 days prior and 18 days after delivery. Co exposure significantly increased erythrocyte count (RBC), and reduced the erythrocytic parameters mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) in the offspring. Total iron-binding capacity (TIBC) was decreased while bilirubin values were ~ 1.2-fold higher in the metal-exposed mice. Perinatal CoCl2 treatment also induced pathohistological changes in target organs (spleen, liver, and kidneys) as altered organ weight indices, leukocyte infiltration, abundant Kupffer cells in the liver, increased mesangial cellularity, and reduced capsular space in the kidney. CoCl2 administration induced significant 68-, 3.8-, 41.3-, and 162-fold increase of Co content in the kidney, spleen, liver, and RBC, respectively. Fe content in the target organs of CoCl2-treated mice was also significantly elevated. Immunohistochemical analysis demonstrated that TfR1 was well expressed in the renal tubules, hepatocytes, the red pulp, and marginal zone of white pulp in the spleen. TfR2 showed similar expression pattern, but its expression was stronger in the spleen and liver samples of Co-treated mice compared with that of the untreated controls. The results demonstrate that exposure to CoCl2 during late pregnancy and early postnatal period affects body and organ weights and alters hematological and biochemical parameters, iron content, and TfR expression in target organs.

Original languageEnglish
JournalBiological Trace Element Research
DOIs
Publication statusAccepted/In press - 1 Jan 2019

Keywords

  • Cobalt
  • Hematological indices
  • Iron
  • Suckling mice
  • TfR

Cite this

@article{b9a2fa2246304e5e80571c6928fc2450,
title = "The Impact of Perinatal Cobalt Chloride Exposure on Extramedullary Erythropoiesis, Tissue Iron Levels, and Transferrin Receptor Expression in Mice",
abstract = "The objective of the present study was to elucidate the effect of perinatal cobalt chloride (CoCl2) exposure on extramedullary erythropoiesis in suckling mice in relation to iron (Fe) content and transferrin receptor (TfR) expression. Pregnant ICR mice were subjected to a daily dose of 75 mg CoCl2/kg body weight 2–3 days prior and 18 days after delivery. Co exposure significantly increased erythrocyte count (RBC), and reduced the erythrocytic parameters mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) in the offspring. Total iron-binding capacity (TIBC) was decreased while bilirubin values were ~ 1.2-fold higher in the metal-exposed mice. Perinatal CoCl2 treatment also induced pathohistological changes in target organs (spleen, liver, and kidneys) as altered organ weight indices, leukocyte infiltration, abundant Kupffer cells in the liver, increased mesangial cellularity, and reduced capsular space in the kidney. CoCl2 administration induced significant 68-, 3.8-, 41.3-, and 162-fold increase of Co content in the kidney, spleen, liver, and RBC, respectively. Fe content in the target organs of CoCl2-treated mice was also significantly elevated. Immunohistochemical analysis demonstrated that TfR1 was well expressed in the renal tubules, hepatocytes, the red pulp, and marginal zone of white pulp in the spleen. TfR2 showed similar expression pattern, but its expression was stronger in the spleen and liver samples of Co-treated mice compared with that of the untreated controls. The results demonstrate that exposure to CoCl2 during late pregnancy and early postnatal period affects body and organ weights and alters hematological and biochemical parameters, iron content, and TfR expression in target organs.",
keywords = "Cobalt, Hematological indices, Iron, Suckling mice, TfR",
author = "Yordanka Gluhcheva and Ekaterina Pavlova and Emilia Petrova and Tinkov, {Alexey A.} and Ajsuvakova, {Olga P.} and Skalnaya, {Margarita G.} and Ivelin Vladov and Skalny, {Anatoly V.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1007/s12011-019-01790-8",
language = "English",
journal = "Biological Trace Element Research",
issn = "0163-4984",

}

The Impact of Perinatal Cobalt Chloride Exposure on Extramedullary Erythropoiesis, Tissue Iron Levels, and Transferrin Receptor Expression in Mice. / Gluhcheva, Yordanka; Pavlova, Ekaterina; Petrova, Emilia; Tinkov, Alexey A.; Ajsuvakova, Olga P.; Skalnaya, Margarita G.; Vladov, Ivelin; Skalny, Anatoly V.

In: Biological Trace Element Research, 01.01.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The Impact of Perinatal Cobalt Chloride Exposure on Extramedullary Erythropoiesis, Tissue Iron Levels, and Transferrin Receptor Expression in Mice

AU - Gluhcheva, Yordanka

AU - Pavlova, Ekaterina

AU - Petrova, Emilia

AU - Tinkov, Alexey A.

AU - Ajsuvakova, Olga P.

AU - Skalnaya, Margarita G.

AU - Vladov, Ivelin

AU - Skalny, Anatoly V.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The objective of the present study was to elucidate the effect of perinatal cobalt chloride (CoCl2) exposure on extramedullary erythropoiesis in suckling mice in relation to iron (Fe) content and transferrin receptor (TfR) expression. Pregnant ICR mice were subjected to a daily dose of 75 mg CoCl2/kg body weight 2–3 days prior and 18 days after delivery. Co exposure significantly increased erythrocyte count (RBC), and reduced the erythrocytic parameters mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) in the offspring. Total iron-binding capacity (TIBC) was decreased while bilirubin values were ~ 1.2-fold higher in the metal-exposed mice. Perinatal CoCl2 treatment also induced pathohistological changes in target organs (spleen, liver, and kidneys) as altered organ weight indices, leukocyte infiltration, abundant Kupffer cells in the liver, increased mesangial cellularity, and reduced capsular space in the kidney. CoCl2 administration induced significant 68-, 3.8-, 41.3-, and 162-fold increase of Co content in the kidney, spleen, liver, and RBC, respectively. Fe content in the target organs of CoCl2-treated mice was also significantly elevated. Immunohistochemical analysis demonstrated that TfR1 was well expressed in the renal tubules, hepatocytes, the red pulp, and marginal zone of white pulp in the spleen. TfR2 showed similar expression pattern, but its expression was stronger in the spleen and liver samples of Co-treated mice compared with that of the untreated controls. The results demonstrate that exposure to CoCl2 during late pregnancy and early postnatal period affects body and organ weights and alters hematological and biochemical parameters, iron content, and TfR expression in target organs.

AB - The objective of the present study was to elucidate the effect of perinatal cobalt chloride (CoCl2) exposure on extramedullary erythropoiesis in suckling mice in relation to iron (Fe) content and transferrin receptor (TfR) expression. Pregnant ICR mice were subjected to a daily dose of 75 mg CoCl2/kg body weight 2–3 days prior and 18 days after delivery. Co exposure significantly increased erythrocyte count (RBC), and reduced the erythrocytic parameters mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) in the offspring. Total iron-binding capacity (TIBC) was decreased while bilirubin values were ~ 1.2-fold higher in the metal-exposed mice. Perinatal CoCl2 treatment also induced pathohistological changes in target organs (spleen, liver, and kidneys) as altered organ weight indices, leukocyte infiltration, abundant Kupffer cells in the liver, increased mesangial cellularity, and reduced capsular space in the kidney. CoCl2 administration induced significant 68-, 3.8-, 41.3-, and 162-fold increase of Co content in the kidney, spleen, liver, and RBC, respectively. Fe content in the target organs of CoCl2-treated mice was also significantly elevated. Immunohistochemical analysis demonstrated that TfR1 was well expressed in the renal tubules, hepatocytes, the red pulp, and marginal zone of white pulp in the spleen. TfR2 showed similar expression pattern, but its expression was stronger in the spleen and liver samples of Co-treated mice compared with that of the untreated controls. The results demonstrate that exposure to CoCl2 during late pregnancy and early postnatal period affects body and organ weights and alters hematological and biochemical parameters, iron content, and TfR expression in target organs.

KW - Cobalt

KW - Hematological indices

KW - Iron

KW - Suckling mice

KW - TfR

UR - http://www.scopus.com/inward/record.url?scp=85068866784&partnerID=8YFLogxK

U2 - 10.1007/s12011-019-01790-8

DO - 10.1007/s12011-019-01790-8

M3 - Article

JO - Biological Trace Element Research

JF - Biological Trace Element Research

SN - 0163-4984

ER -