scholarly journals Necrotic inflammatory reaction induced by muramyl dipeptide in guinea pigs sensitized by tubercle bacilli.

1985 ◽  
Vol 162 (2) ◽  
pp. 401-412 ◽  
Author(s):  
S Nagao ◽  
A Tanaka
Keyword(s):  
Inflammatory Reaction ◽  
Guinea Pigs ◽  
Muramyl Dipeptide ◽  
Delayed Hypersensitivity ◽  
Protein Antigens ◽  
Oil Emulsion ◽  
Severe Inflammation ◽  
Related Substances ◽  
Shwartzman Reaction

In the course of studies aimed at determining whether MDP was antigenic or not, a hitherto unreported phenomenon was noticed. Injection (a provocative injection) of muramyl dipeptide (MDP) caused severe inflammation, with hemorrhage and necrosis in the footpads of guinea pigs, where tubercle bacilli in water-oil emulsion (a preparatory injection) had been injected 3-8 wk earlier. Sometimes the reaction was accompanied by generalized and fatal shock. Several related substances were tested, and only a combination of tubercle bacilli, or MDP plus proteins as the preparatory injection, and MDP as the provocative injection was found to induce this inflammatory necrotic reaction. Development of delayed hypersensitivity to protein antigens may be important for priming, but MDP and not the protein antigens provoked the reaction. This reaction was, so far, only observed in guinea pigs. Although this reaction appears to be similar to the Shwartzman reaction, the two reactions were found to differ from each other in several important points.

scholarly journals DELAYED HYPERSENSITIVITY

1958 ◽  
Vol 108 (6) ◽  
pp. 905-924 ◽  
Author(s):  
Jonathan W. Uhr ◽  
M. W. Brandriss
Keyword(s):  
Guinea Pigs ◽  
Serum Antibody ◽  
Specific Antigen ◽  
Endotoxin Tolerance ◽  
Delayed Hypersensitivity ◽  
Febrile Response ◽  
Protein Antigens ◽  
Skin Reactivity ◽  
Highly Sensitive ◽  
Specific Challenge

Guinea pigs with delayed hypersensitivity to protein antigens show a specific febrile response accompanied by a lymphopenia following injection of a desensitizing dose of specific antigen. No signs of shock are observed in highly sensitive animals following this injection. The response is not prevented in sensitive guinea pigs by inducing endotoxin tolerance or by pretreating with cortisone before specific challenge. Using a suitable antigen in sufficiently sensitive animals as little as 100 µg. can elicit a pronounced febrile response. Injection of a desensitizing dose of antigen specifically abolishes systemic as well as skin reactivity for several days. Normal or hypersensitive (delayed-type) animals passively sensitized with sufficient amounts of serum antibody show hypothermia after specific challenge and may show a delayed type of fatal shock. Differences were noted between their systemic reactivities, however, and the reactivity seen in specifically challenged tuberculous animals.

scholarly journals Suppression of T cell-mediated cutaneous basophil hypersensitivity by serum from guinea pigs immunized with mycobacterial adjuvant.

1982 ◽  
Vol 156 (1) ◽  
pp. 159-172 ◽  
Author(s):  
E B Mitchell ◽  
P W Askenase
Keyword(s):  
T Cells ◽  
T Cell ◽  
Guinea Pigs ◽  
Immune Serum ◽  
Delayed Hypersensitivity ◽  
Delayed Response ◽  
Transfer System ◽  
Serum Factor ◽  
Protein Antigens ◽  
Cell Recruitment

Guinea pigs immunized with protein antigens emulsified with complete Freund's adjuvant (CFA) and skin tested at 3-4 wk have classical tuberculin-type delayed hypersensitivity (DH) reactions with few basophils present. However, recipients of T cells from these animals have delayed responses containing large basophil infiltrates and thus resemble basophil-rich cutaneous basophil hypersensitivity (CBH) responses that are elicited in animals immunized without CFA. This suggests that animals immunized with CFA have T cells with basophil-recruiting capacity but that this activity is suppressed. Using a transfer system, we found that immune serum from donors immunized with CFA had the ability to suppress the basophil-recruiting capacity of immune T cells. When immune serum and peritoneal exudate cells from guinea pigs immunized with CFA were co-transferred intravenously to normal recipients, the cell-mediated transfer of basophil-rich responses was suppressed. The responsible serum factor was antigen nonspecific, had an approximately 70,000 mol wt, and acted preferentially on cells from donors that express basophil-poor DH responses. Thus, tuberculin-type delayed hypersensitivity and CBH might be mediated by a common T cell, but the resulting basophil component of the delayed response depends on the modulation of T cell recruitment of basophils by factors in CFA-immune serum.

scholarly journals THE RÔLE OF THE "WAX" OF THE TUBERCLE BACILLUS IN ESTABLISHING DELAYED HYPERSENSITIVITY

1949 ◽  
Vol 90 (1) ◽  
pp. 53-72 ◽  
Author(s):  
Sidney Raffel ◽  
Louis E. Arnaud ◽  
C. Dean Dukes ◽  
Jwo S. Huang
Keyword(s):  
Guinea Pigs ◽  
Delayed Hypersensitivity ◽  
Tubercle Bacillus ◽  
Adjuvant Activity ◽  
Oil Emulsion ◽  
Similar Activity ◽  
Egg Albumin ◽  
Antibody Titers ◽  
Picryl Chloride ◽  
Water In Oil Emulsion

Guinea pigs sensitized with egg albumin along with the purified wax fraction of the human tubercle bacillus respond with delayed hypersensitive reactivity to the protein antigen. Previous publications have reported a similar activity of the wax with respect to tuberculoprotein and picryl chloride. The effect is not referable to an ordinary adjuvant activity of the bacillary wax, since antibody titers are not increased in animals which receive it, and since a known adjuvant, water-in-oil emulsion, has no effect with respect to the induction of delayed hypersensitivity. This report further extends the rôle of the tubercle bacillary wax in the induction of delayed hypersensitive states.

scholarly journals DELAYED HYPERSENSITIVITY

1957 ◽  
Vol 105 (1) ◽  
pp. 11-24 ◽  
Author(s):  
Jonathan W. Uhr ◽  
S. B. Salvin ◽  
A. M. Pappenheimer
Keyword(s):  
Guinea Pig ◽  
Guinea Pigs ◽  
Intradermal Injection ◽  
Delayed Hypersensitivity ◽  
Protein Antigens ◽  
Single Protein ◽  
Maximal Sensitivity ◽  
Degree Of Sensitization ◽  
Circulating Antibody ◽  
General Method

A general method for induction of the delayed hypersensitive state directed against single protein antigens is described. The method consists of intradermal injection of minute amounts of washed immune precipitates containing the antigen in question. Provided the specific precipitates are formed in the region of antibody excess, maximal sensitivity develops at least 2 to 3 weeks before detectable circulating antibody is formed in guinea pigs against the sensitizing antigen. Neither adjuvant nor killed acid-fast bacteria are required for induction of the delayed hypersensitive state although the degree of sensitization is considerably increased when the sensitizing material is incorporated in Freund's complete adjuvant. Characteristics of the "delayed" as opposed to the "immediate" hypersensitive states in the guinea pig are described and implications of the findings are discussed.

Muramyl-dipeptide analogues: Synthesis and biological activities

1988 ◽  
Vol 53 (11) ◽  
pp. 2897-2906 ◽  
Author(s):  
Jan Ježek ◽  
Milan Zaoral ◽  
Miloš Buděšínský ◽  
Jiří Günther ◽  
Jiří Rotta
Keyword(s):  
Biological Activities ◽  
Muramyl Dipeptide ◽  
Delayed Hypersensitivity ◽  
Test Compound ◽  
Active Compounds ◽  
Dipeptide Analogues ◽  
Pyrogenic Activity

In the search for immunoadjuvant active compounds without pyrogenic activity we prepared N-Ac-norMur-L-Abu-D-Gln-O-Bu (V), N-Ac-Mur-L-Abu-D-Gln-O-Bu (VII) and their respective α-benzylglycosides VI and VIII. All the prepared compounds are nonpyrogenic. In the delayed hypersensitivity test, compound V is inactive, VI is comparable to MDP, VII is more and VIII is less active than MDP.

Sign in / Sign up

Export Citation Format

Share Document