IgM Neutralizing Antibody Responses to Human Herpesvirus‐6 in Patients with Exanthem Subitum or Organ Transplantation

Sadao Suga, Tetsushi Yoshikawa, Yoshizo Asano, Toshihiko Nakashima, Takehiko Yazaki, Minoru Fukuda, Seiji Kojima, Takaharu Matsuyama, Yoshinari Ono, Shinichi Oshima

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Abstract

The assay for detecting IgM neutralizing (NT) antibody activity to human herpesvirus‐6 (HHV‐6) was developed by using pretreatment of blood sample with staphylococcal protein A. The activity was mostly present in IgM fractions of serum but not in IgA fractions separated by ultracentrifugation. The assay was used for seroepidemiological studies for HHV‐6 infection. In primary HHV‐6 infection, IgM NT antibodies appeared 5 to 7 days after onset of exanthem subitum, reached maximum titers at 2 to 3 weeks, and tended to decline to undetectable levels after 2 months. In contrast, reactivation of HHV‐6 observed in organ transplants showed somewhat greater degree of IgM NT antibody responses that persisted for 2 to 3 months and became undetectable 5 to 6 months after transplantation. The level and persistence of NT antibody titers measured by the conventional method was generally greater than those of the IgM titers. The prevalence of the IgM NT antibodies was examined in healthy individuals. The antibody was first detected at 4 to 7 months of age (5%), reached maximum level at 8 to 11 months (40%), and was detectable by 4 to 6 years (17%). A few (4 to 5%) of adolescents and adults were positive for the antibody.

Original languageEnglish
Pages (from-to)495-506
Number of pages12
JournalMICROBIOLOGY and IMMUNOLOGY
Volume36
Issue number5
DOIs
Publication statusPublished - 01-01-1992

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Organ Transplantation
Exanthema
Neutralizing Antibodies
Antibody Formation
Immunoglobulin M
Antibodies
Ultracentrifugation
Seroepidemiologic Studies
Staphylococcal Protein A
Infection
Human Activities
Immunoglobulin A
Transplantation
Transplants
Serum

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Virology

Cite this

Suga, Sadao ; Yoshikawa, Tetsushi ; Asano, Yoshizo ; Nakashima, Toshihiko ; Yazaki, Takehiko ; Fukuda, Minoru ; Kojima, Seiji ; Matsuyama, Takaharu ; Ono, Yoshinari ; Oshima, Shinichi. / IgM Neutralizing Antibody Responses to Human Herpesvirus‐6 in Patients with Exanthem Subitum or Organ Transplantation. In: MICROBIOLOGY and IMMUNOLOGY. 1992 ; Vol. 36, No. 5. pp. 495-506.
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Suga, S, Yoshikawa, T, Asano, Y, Nakashima, T, Yazaki, T, Fukuda, M, Kojima, S, Matsuyama, T, Ono, Y & Oshima, S 1992, 'IgM Neutralizing Antibody Responses to Human Herpesvirus‐6 in Patients with Exanthem Subitum or Organ Transplantation', MICROBIOLOGY and IMMUNOLOGY, vol. 36, no. 5, pp. 495-506. https://doi.org/10.1111/j.1348-0421.1992.tb02047.x

IgM Neutralizing Antibody Responses to Human Herpesvirus‐6 in Patients with Exanthem Subitum or Organ Transplantation. / Suga, Sadao; Yoshikawa, Tetsushi; Asano, Yoshizo; Nakashima, Toshihiko; Yazaki, Takehiko; Fukuda, Minoru; Kojima, Seiji; Matsuyama, Takaharu; Ono, Yoshinari; Oshima, Shinichi.

In: MICROBIOLOGY and IMMUNOLOGY, Vol. 36, No. 5, 01.01.1992, p. 495-506.

Research output: Contribution to journalArticle

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T1 - IgM Neutralizing Antibody Responses to Human Herpesvirus‐6 in Patients with Exanthem Subitum or Organ Transplantation

AU - Suga, Sadao

AU - Yoshikawa, Tetsushi

AU - Asano, Yoshizo

AU - Nakashima, Toshihiko

AU - Yazaki, Takehiko

AU - Fukuda, Minoru

AU - Kojima, Seiji

AU - Matsuyama, Takaharu

AU - Ono, Yoshinari

AU - Oshima, Shinichi

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The assay for detecting IgM neutralizing (NT) antibody activity to human herpesvirus‐6 (HHV‐6) was developed by using pretreatment of blood sample with staphylococcal protein A. The activity was mostly present in IgM fractions of serum but not in IgA fractions separated by ultracentrifugation. The assay was used for seroepidemiological studies for HHV‐6 infection. In primary HHV‐6 infection, IgM NT antibodies appeared 5 to 7 days after onset of exanthem subitum, reached maximum titers at 2 to 3 weeks, and tended to decline to undetectable levels after 2 months. In contrast, reactivation of HHV‐6 observed in organ transplants showed somewhat greater degree of IgM NT antibody responses that persisted for 2 to 3 months and became undetectable 5 to 6 months after transplantation. The level and persistence of NT antibody titers measured by the conventional method was generally greater than those of the IgM titers. The prevalence of the IgM NT antibodies was examined in healthy individuals. The antibody was first detected at 4 to 7 months of age (5%), reached maximum level at 8 to 11 months (40%), and was detectable by 4 to 6 years (17%). A few (4 to 5%) of adolescents and adults were positive for the antibody.

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