Modifications of cell-mediated immune responses by moderate dietary protein stress in immunologically immature and mature BALB/c mice

Ronald R Watson, Keith Haffer

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11 Citations (Scopus)

Abstract

Female BALB/c mice at 5, 6 (immature) and 35 weeks of age (mature) were placed on isocaloric control (20% protein) or experimental (4% protein) diets. Cell-mediated immune responses [theta-bearing cell percentages, phytohemagglutinin (PHA) induced mitogenesis, mixed lymphocyte reaction (MLR) and antibody-dependent lymphocyte-mediated cytotoxicity (ADLMC)] of splenic lymphocytes were measured. A significant decline in percentages of theta-bearing cells, PHA and MLR responses occurred as early as two weeks for the immature mice on the restricted diet and continued for up to 8 weeks. In mature mice, protein restriction did not influence theta-bearing cell percentages, but did suppress PHA and MLR responses between 7 and 13 weeks. A significant suppression of ADLMC responses was also noted at 16 weeks. These results indicate that developing cellular immune systems of immature BALB/c mice are more sensitive to moderate protein restriction (i.e. immunosuppression occurs after a shorter interval) than those of mature mice. They suggest that moderate protein malnutrition retards but does not prevent immunological maturation.

Original languageEnglish (US)
Pages (from-to)269-278
Number of pages10
JournalMechanisms of Ageing and Development
Volume12
Issue number3
DOIs
StatePublished - 1980
Externally publishedYes

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Lymphocytes
Dietary Proteins
Mixed Lymphocyte Culture Test
Phytohemagglutinins
Bearings (structural)
Proteins
Cytotoxicity
Nutrition
Diet
Antibodies
Malnutrition
Immunosuppression
Immune System
Immune system

ASJC Scopus subject areas

  • Aging
  • Biochemistry
  • Developmental Biology
  • Developmental Neuroscience

Cite this

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title = "Modifications of cell-mediated immune responses by moderate dietary protein stress in immunologically immature and mature BALB/c mice",
abstract = "Female BALB/c mice at 5, 6 (immature) and 35 weeks of age (mature) were placed on isocaloric control (20{\%} protein) or experimental (4{\%} protein) diets. Cell-mediated immune responses [theta-bearing cell percentages, phytohemagglutinin (PHA) induced mitogenesis, mixed lymphocyte reaction (MLR) and antibody-dependent lymphocyte-mediated cytotoxicity (ADLMC)] of splenic lymphocytes were measured. A significant decline in percentages of theta-bearing cells, PHA and MLR responses occurred as early as two weeks for the immature mice on the restricted diet and continued for up to 8 weeks. In mature mice, protein restriction did not influence theta-bearing cell percentages, but did suppress PHA and MLR responses between 7 and 13 weeks. A significant suppression of ADLMC responses was also noted at 16 weeks. These results indicate that developing cellular immune systems of immature BALB/c mice are more sensitive to moderate protein restriction (i.e. immunosuppression occurs after a shorter interval) than those of mature mice. They suggest that moderate protein malnutrition retards but does not prevent immunological maturation.",
author = "Watson, {Ronald R} and Keith Haffer",
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T1 - Modifications of cell-mediated immune responses by moderate dietary protein stress in immunologically immature and mature BALB/c mice

AU - Watson, Ronald R

AU - Haffer, Keith

PY - 1980

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N2 - Female BALB/c mice at 5, 6 (immature) and 35 weeks of age (mature) were placed on isocaloric control (20% protein) or experimental (4% protein) diets. Cell-mediated immune responses [theta-bearing cell percentages, phytohemagglutinin (PHA) induced mitogenesis, mixed lymphocyte reaction (MLR) and antibody-dependent lymphocyte-mediated cytotoxicity (ADLMC)] of splenic lymphocytes were measured. A significant decline in percentages of theta-bearing cells, PHA and MLR responses occurred as early as two weeks for the immature mice on the restricted diet and continued for up to 8 weeks. In mature mice, protein restriction did not influence theta-bearing cell percentages, but did suppress PHA and MLR responses between 7 and 13 weeks. A significant suppression of ADLMC responses was also noted at 16 weeks. These results indicate that developing cellular immune systems of immature BALB/c mice are more sensitive to moderate protein restriction (i.e. immunosuppression occurs after a shorter interval) than those of mature mice. They suggest that moderate protein malnutrition retards but does not prevent immunological maturation.

AB - Female BALB/c mice at 5, 6 (immature) and 35 weeks of age (mature) were placed on isocaloric control (20% protein) or experimental (4% protein) diets. Cell-mediated immune responses [theta-bearing cell percentages, phytohemagglutinin (PHA) induced mitogenesis, mixed lymphocyte reaction (MLR) and antibody-dependent lymphocyte-mediated cytotoxicity (ADLMC)] of splenic lymphocytes were measured. A significant decline in percentages of theta-bearing cells, PHA and MLR responses occurred as early as two weeks for the immature mice on the restricted diet and continued for up to 8 weeks. In mature mice, protein restriction did not influence theta-bearing cell percentages, but did suppress PHA and MLR responses between 7 and 13 weeks. A significant suppression of ADLMC responses was also noted at 16 weeks. These results indicate that developing cellular immune systems of immature BALB/c mice are more sensitive to moderate protein restriction (i.e. immunosuppression occurs after a shorter interval) than those of mature mice. They suggest that moderate protein malnutrition retards but does not prevent immunological maturation.

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