Y. Kumazawa

Publication List Details

Number

31

Co-Authors

Productive and lytic infection of human CD4+ type 1 helper T cells with macrophage-tropic human immunodeficiency virus type 1.

Tanaka, Y, Koyanagi, Y, Tanaka, R, Kumazawa, Y, Nishimura, T, Yamamoto, N

It is generally recognized that macrophage-tropic human immunodeficiency virus type 1 (HIV-1) is the predominant population during the acute and asymptomatic phases of HIV-1 infection. Here, we...

Primary human immunodeficiency virus type 1 viremia and central nervous system invasion in a novel hu-PBL-immunodeficient mouse strain.

Koyanagi, Y, Tanaka, Y, Kira, J, Ito, M, Hioki, K, Misawa, N, ...

We established four new mouse strains with defective T and B cells as well as defects in innate immunological reactions using an NK cell depletion antibody and showed that all mutant mouse strains...

Gamma interferon production in endotoxin-responder and -nonresponder mice during infection.

Freudenberg, M A, Kumazawa, Y, Meding, S, Langhorne, J, Galanos, C

The production of gamma interferon (IFN-gamma) in response to infection and to a number of other agents was compared in Lpsn (C3H/HeN and C57BL/10ScSn) and Lpsd (C3H/HeJ and C57BL/10ScCr) mouse...

Importance of fatty acid substituents of chemically synthesized lipid A-subunit analogs in the expression of immunopharmacological activity.

Kumazawa, Y, Nakatsuka, M, Takimoto, H, Furuya, T, Nagumo, T, Yamamoto, A, ...

The immunopharmacological activities of chemically synthesized lipid A-subunit analogs, 4-O-phosphono-D-glucosamine derivatives carrying different N- and 3-O-linked acyl groups, were investigated....

Enhancement of immunoglobulin G responses in mice against hepatitis B virus surface antigen, influenza virus hemagglutinin vaccine, and tetanus toxoid by 6-O-acylated muramyl dipeptides.

Furuya, T, Kumazawa, Y, Takimoto, H, Nagumo, T, Watanabe, M, Aizawa, C, ...

The adjuvant activity of chemically synthesized 6-O-acylated muramyl dipeptides (MDP) was tested in aqueous form. The activity was assessed by determining immunoglobulin G (IgG) titers in sera of...

Immunopharmacological activities of 2-keto-3-deoxyoctonic acid-(alpha 2----6)-linked 4-O-phosphono-D-glucosamine derivatives carrying N- and 3-O-acyl substituents.

Kumazawa, Y, Matsuura, M, Homma, J Y, Furuya, T, Takimoto, H, Inagaki, K, ...

The immunopharmacological activities of 2-keto-3-deoxyoctonic acid (KDO)-(alpha 2----6)-linked lipid A-subunit analogs, 4-O-phosphono-D-glucosamine derivatives carrying N- and 3-O-acyl substituents,...

Purification and characterization of two serine isoacceptor tRNAs from bovine mitochondria by using a hybridization assay method.

Yokogawa, T, Kumazawa, Y, Miura, K, Watanabe, K

For large scale preparation of mitochondrial tRNAs, a new hybridization assay method using synthetic oligodeoxyribonucleotide probes (16-17mer) complementary to individual tRNA sequences was...

A novel cloverleaf structure found in mammalian mitochondrial tRNA(Ser) (UCN).

Yokogawa, T, Watanabe, Y, Kumazawa, Y, Ueda, T, Hirao, I, Miura, K, ...

Bovine mitochondrial tRNA(Ser) (UCN) has been thought to have two U-U mismatches at the top of the acceptor stem, as inferred from its gene sequence. However, this unusual structure has not been...

Higher-order structure of bovine mitochondrial tRNA(SerUGA): chemical modification and computer modeling.

Watanabe, Y, Kawai, G, Yokogawa, T, Hayashi, N, Kumazawa, Y, Ueda, T, ...

On the basis of enzymatic probing and phylogenetic comparison, we have previously proposed that mammalian mitochondrial tRNA(sSer) (anticodon UGA) possess a slightly altered cloverleaf structure in...

Higher-order structure of bovine mitochondrial tRNA(Phe) lacking the 'conserved' GG and T psi CG sequences as inferred by enzymatic and chemical probing.

Wakita, K, Watanabe, Y, Yokogawa, T, Kumazawa, Y, Nakamura, S, Ueda, T, ...

Bovine mitochondrial (mt) phenylalanine tRNA (tRNA(Phe)), which lacks the 'conserved' GG and T psi YCG sequences, was efficiently purified by the selective hybridization method using a solid phase...

Expression of glucocorticoid receptor and 11β hydroxysteroid dehydrogenase in a case of pulmonary epithelioid haemangioendothelioma

Kumazawa, Y, Maeda, K, Ito, M, Yamakawa, M, Hino, T, Nakamura, C, ...

This report describes a case of pulmonary epithelioid haemangioendothelioma in which the tumour cells expressed the glucocorticoid receptor and 11β-hydroxysteroid dehydrogenase. The patient, a 15...

Effect of the higher-order structure of tRNAs on the stability of hybrids with oligodeoxyribonucleotides: separation of tRNA by an efficient solution hybridization.

Kumazawa, Y, Yokogawa, T, Tsurui, H, Miura, K, Watanabe, K

In the course of developing a method to purify a single tRNA species efficiently, we have examined hybridization efficiencies between some tRNAs and short oligodeoxyribonucleotide probes both by the...

The complete nucleotide sequence of a snake (Dinodon semicarinatus) mitochondrial genome with two identical control regions.

Kumazawa, Y, Ota, H, Nishida, M, Ozawa, T

The 17,191-bp mitochondrial DNA (mtDNA) of a Japanese colubrid snake, akamata (Dinodon semicarinatus), was cloned and sequenced. The snake mtDNA has some peculiar features that were found in our...

Productive and lytic infection of human CD4+ type 1 helper T cells with macrophage-tropic human immunodeficiency virus type 1.

Tanaka, Y, Koyanagi, Y, Tanaka, R, Kumazawa, Y, Nishimura, T, Yamamoto, N

It is generally recognized that macrophage-tropic human immunodeficiency virus type 1 (HIV-1) is the predominant population during the acute and asymptomatic phases of HIV-1 infection. Here, we...

Primary human immunodeficiency virus type 1 viremia and central nervous system invasion in a novel hu-PBL-immunodeficient mouse strain.

Koyanagi, Y, Tanaka, Y, Kira, J, Ito, M, Hioki, K, Misawa, N, ...

We established four new mouse strains with defective T and B cells as well as defects in innate immunological reactions using an NK cell depletion antibody and showed that all mutant mouse strains...

Gamma interferon production in endotoxin-responder and -nonresponder mice during infection.

Freudenberg, M A, Kumazawa, Y, Meding, S, Langhorne, J, Galanos, C

The production of gamma interferon (IFN-gamma) in response to infection and to a number of other agents was compared in Lpsn (C3H/HeN and C57BL/10ScSn) and Lpsd (C3H/HeJ and C57BL/10ScCr) mouse...

Importance of fatty acid substituents of chemically synthesized lipid A-subunit analogs in the expression of immunopharmacological activity.

Kumazawa, Y, Nakatsuka, M, Takimoto, H, Furuya, T, Nagumo, T, Yamamoto, A, ...

The immunopharmacological activities of chemically synthesized lipid A-subunit analogs, 4-O-phosphono-D-glucosamine derivatives carrying different N- and 3-O-linked acyl groups, were investigated....

Effect of the higher-order structure of tRNAs on the stability of hybrids with oligodeoxyribonucleotides: separation of tRNA by an efficient solution hybridization.

Kumazawa, Y, Yokogawa, T, Tsurui, H, Miura, K, Watanabe, K

In the course of developing a method to purify a single tRNA species efficiently, we have examined hybridization efficiencies between some tRNAs and short oligodeoxyribonucleotide probes both by the...

Enhancement of immunoglobulin G responses in mice against hepatitis B virus surface antigen, influenza virus hemagglutinin vaccine, and tetanus toxoid by 6-O-acylated muramyl dipeptides.

Furuya, T., Kumazawa, Y., Takimoto, H., Nagumo, T., Watanabe, M., Aizawa, C., ...

The adjuvant activity of chemically synthesized 6-O-acylated muramyl dipeptides (MDP) was tested in aqueous form. The activity was assessed by determining immunoglobulin G (IgG) titers in sera of...

Immunopharmacological activities of 2-keto-3-deoxyoctonic acid-(alpha 2----6)-linked 4-O-phosphono-D-glucosamine derivatives carrying N- and 3-O-acyl substituents.

Kumazawa, Y., Matsuura, M., Homma, J. Y., Furuya, T., Takimoto, H., Inagaki, K., ...

The immunopharmacological activities of 2-keto-3-deoxyoctonic acid (KDO)-(alpha 2----6)-linked lipid A-subunit analogs, 4-O-phosphono-D-glucosamine derivatives carrying N- and 3-O-acyl substituents,...

Purification and characterization of two serine isoacceptor tRNAs from bovine mitochondria by using a hybridization assay method.

Yokogawa, T, Kumazawa, Y, Miura, K, Watanabe, K

For large scale preparation of mitochondrial tRNAs, a new hybridization assay method using synthetic oligodeoxyribonucleotide probes (16-17mer) complementary to individual tRNA sequences was...

A novel cloverleaf structure found in mammalian mitochondrial tRNA(Ser) (UCN).

Yokogawa, T, Watanabe, Y, Kumazawa, Y, Ueda, T, Hirao, I, Miura, K, ...

Bovine mitochondrial tRNA(Ser) (UCN) has been thought to have two U-U mismatches at the top of the acceptor stem, as inferred from its gene sequence. However, this unusual structure has not been...

Higher-order structure of bovine mitochondrial tRNA(SerUGA): chemical modification and computer modeling.

Watanabe, Y, Kawai, G, Yokogawa, T, Hayashi, N, Kumazawa, Y, Ueda, T, ...

On the basis of enzymatic probing and phylogenetic comparison, we have previously proposed that mammalian mitochondrial tRNA(sSer) (anticodon UGA) possess a slightly altered cloverleaf structure in...

Higher-order structure of bovine mitochondrial tRNA(Phe) lacking the 'conserved' GG and T psi CG sequences as inferred by enzymatic and chemical probing.

Wakita, K, Watanabe, Y, Yokogawa, T, Kumazawa, Y, Nakamura, S, Ueda, T, ...

Bovine mitochondrial (mt) phenylalanine tRNA (tRNA(Phe)), which lacks the 'conserved' GG and T psi YCG sequences, was efficiently purified by the selective hybridization method using a solid phase...

Expression of glucocorticoid receptor and 11β hydroxysteroid dehydrogenase in a case of pulmonary epithelioid haemangioendothelioma

Kumazawa, Y, Maeda, K, Ito, M, Yamakawa, M, Hino, T, Nakamura, C, ...

This report describes a case of pulmonary epithelioid haemangioendothelioma in which the tumour cells expressed the glucocorticoid receptor and 11β-hydroxysteroid dehydrogenase. The patient, a 15...

The complete nucleotide sequence of a snake (Dinodon semicarinatus) mitochondrial genome with two identical control regions.

Kumazawa, Y, Ota, H, Nishida, M, Ozawa, T

The 17,191-bp mitochondrial DNA (mtDNA) of a Japanese colubrid snake, akamata (Dinodon semicarinatus), was cloned and sequenced. The snake mtDNA has some peculiar features that were found in our...

Regulation of anti-hapten antibody response by chemically modified carrier antigen preferentially provoking delayed-type hypersensitivity: I. Possible T—T cell interaction in the suppression of antibody response

Machida, A., Kumazawa, Y., Mizunoe, K.

The i.p. immunization with chemically modified antigen (dodecanoyl-bovine serum albumin, d-BSA) emulsified in Freund's incomplete adjuvant (FIA) of CBA mice provoked delayed-type hypersensitivity...

High frequency detection of different T-cell subsets in mice by a modified virus plaque assay.

Fujisawa, H, Kumazawa, Y, Ohtani, A, Nishimura, C

Different T-cell subsets participating in immune responses were detected at a high frequency by a modified virus plaque assay (VPA). By using the modified VPA, different activated T-cell subsets...

Immunostimulating polysaccharide separated from hot water extract of Angelica acutiloba Kitagawa (Yamato tohki).

Kumazawa, Y, Mizunoe, K, Otsuka, Y

Separation of immunostimulating polysaccharide (ATP) from Angelica and its biological activities were investigated. AIP was separated as an acetone-insoluble and non-dialysable fraction from hot...

TSH receptor-adenovirus-induced Graves' hyperthyroidism is attenuated in both interferon-γ and interleukin-4 knockout mice; implications for the Th1/Th2 paradigm

NAGAYAMA, Y, SAITOH, O, MCLACHLAN, S M, RAPOPORT, B, KANO, H, KUMAZAWA, Y

The role of the Th1/Th2 balance in the pathogenesis of murine Graves' hyperthyroidism is controversial. In BALB/c mice injected with adenovirus expressing TSH receptor (TSHR-adeno model), we found...

Interferon-γ independent formation of pulmonary granuloma in mice by injections with trehalose dimycolate (cord factor), lipoarabinomannan and phosphatidylinositol mannosides isolated from Mycobacterium tuberculosis

Takimoto, H, Maruyama, H, Shimada, K-I, Yakabe, R, Yano, I, Kumazawa, Y

The mechanisms by which pulmonary granuloma formation is caused by administration of mycobacterial glycolipids such as trehalose dimycolate (TDM), lipoarabinomannan (LAM) and phosphatidylinositol...