scholarly journals Immunity to Trichinella spiralis infection in vitamin A-deficient mice.

1992 ◽  
Vol 175 (1) ◽  
pp. 111-120 ◽  
Author(s):  
J A Carman ◽  
L Pond ◽  
F Nashold ◽  
D L Wassom ◽  
C E Hayes
Keyword(s):  
Lymph Node ◽  
Vitamin A ◽  
Mesenteric Lymph Node ◽  
Trichinella Spiralis ◽  
Natural Infection ◽  
Ifn Gamma ◽  
Transcript Levels ◽  
Mesenteric Lymph ◽  
A Cells ◽  
Deficient Mice

Vitamin A-deficient (A-) mice make strikingly poor IgG responses when they are immunized with purified protein antigens. Previously, we showed that A- T cells overproduce interferon gamma (IFN-gamma), which then could inhibit interleukin 4 (IL-4)-stimulated B cell IgG responses. To determine if the altered IFN-gamma regulation pattern and its immunological consequences would extend to a natural infection, we studied mice infected with the parasitic helminth Trichinella spiralis. The course of the infection was similar in A- and A-sufficient (A+) mice. These mice did not differ with respect to newborn larvae/female/hour produced in the intestine, or muscle larvae burden 5 wk postinfection. They also did not differ in the intestinal worm expulsion rate until day 15, when A- mice still harbored parasites, whereas A+ mice had cleared intestinal worms. Vitamin A deficiency reduced both the frequency of B lymphocytes secreting IgG1 antibodies to parasite antigens, and the bone marrow eosinophilia associated with helminth infection. The cytokine secretion patterns in infected mice were consistent with these observations and with previous studies. Mesenteric lymph node cells from infected A- mice secreted significantly more IFN-gamma, and significantly less IL-2, IL-4, and IL-5 than infected A+ controls. A- splenocytes secreted significantly more IFN-gamma, and equivalent amounts of IL-2, IL-4, and IL-5 compared with A+ controls. Interestingly, CD4-CD8- cells secreted the majority of the IL-4 produced in the spleen. The IL-2, IL-4, and IL-5 steady-state transcript levels correlated with secreted protein levels, but IFN-gamma transcripts did not. Although they secreted more protein, A- cells contained fewer IFN-gamma transcripts than A+ cells. These results suggest two vitamin A-mediated regulation steps in IFN-gamma gene expression: positive regulation of IFN-gamma transcript levels, and negative regulation posttranscriptionally. The essentially unaltered outcome of T. spiralis infection in vitamin A-deficient mice probably reflects a balance between cellular and humoral responses. The IFN-gamma overproduction might have a positive effect on the gut inflammatory response, but the decrease eosinophilia, cytokine production in mesenteric lymph node, and IgG1-secreting cell frequency might have a negative effect on T. spiralis immunity.

scholarly journals IFN-γ Secreted by CD103+Dendritic Cells Leads to IgG Generation in the Mesenteric Lymph Node in the Absence of Vitamin A

2011 ◽  
Vol 186 (12) ◽  
pp. 6999-7005 ◽  
Author(s):  
Jae-Hoon Chang ◽  
Hye-Ran Cha ◽  
Sun-Young Chang ◽  
Hyun-Jeong Ko ◽  
Sang-Uk Seo ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
Lymph Node ◽  
Vitamin A ◽  
Mesenteric Lymph Node ◽  
Mesenteric Lymph ◽  
Ifn Γ

Evidence for the involvement of a bone marrow-derived cell population in the immune expulsion ofTrichinella spiralis

Parasitology ◽  
1977 ◽  
Vol 74 (3) ◽  
pp. 225-234 ◽  
Author(s):  
D. Wakelin ◽  
Margaret M. Wilson
Keyword(s):  
Bone Marrow ◽  
Lymph Node ◽  
Cell Population ◽  
Mesenteric Lymph Node ◽  
Trichinella Spiralis ◽  
Mesenteric Lymph ◽  
Lymph Node Cells

When mice were irradiated immediately before infection withTrichinella spiralisthere was a profound and long-lasting interference with their ability to expel adult worms from the intestine. Irradiation given after the fifth day of infection was progressively less effective in this respect. The ability to expel worms was not restored when mesenteric lymph node cells (MLNC) were transferred (a) on the day of infection in mice irradiated one day previously, or (b) on day 7 of an infection in mice irradiated on day 6, even though the MLNC transferred immunity to intact recipients. Transfer of bone marrow (BM) alone was also without effect. However, worm explusion was restored if, following irradiation and injection of BM, 10 days were allowed for BM differentiation before transfer of MLNC. This restoration was effective even after lethal levels of irradiation and was clearly dependent upon a donor-derived BM component cooperating with, or responding to, the activity of the transferred MLNC. The possibility that the BM component is non-lymphoid in nature is discussed.

Specific cross-immunity between Trichinella spiralis and Trichuris muris: immunization with heterologous infections and antigens and transfer of immunity with heterologous immune mesenteric lymph node cells

Parasitology ◽  
1982 ◽  
Vol 84 (2) ◽  
pp. 381-389 ◽  
Author(s):  
T. D. G. Lee ◽  
R. K. Grencis ◽  
D. Wakelin
Keyword(s):  
Lymph Node ◽  
Mesenteric Lymph Node ◽  
Primary Infection ◽  
Trichinella Spiralis ◽  
The Other ◽  
Trichuris Muris ◽  
Mesenteric Lymph ◽  
Heterologous Challenge ◽  
Lymph Node Cells ◽  
Cross Immunity

SUMMARYInfections with either 300 infective Trichinella spiralis larvae or 400 embryonated eggs of Trichuris muris were effective in eliciting accelerated expulsion of heterologous challenge infections given 20 days after the primary infection. Accelerated expulsion could also be achieved by the administration of soluble crude worm antigen given 12 days prior to heterologous challenge or by adoptive transfer of mesenteric lymph node cells taken from mice infected with the heterologous parasite. Each species is capable of eliciting an accelerated secondary expulsion response in hosts that have been actively or adoptively immunized against the other species and these results are taken to indicate that there is a specific cross-immunity between T. spiralis and T. muris due to shared antigens. It is postulated that these shared antigens are derived from stichocyte granules.

Abnormal development of Hymenolepis nana larvae in immunosuppressed mice

1980 ◽  
Vol 54 (2) ◽  
pp. 75-82 ◽  
Author(s):  
S. B. Lucas ◽  
O. Hassounah ◽  
R. Muller ◽  
M. J. Doenhoff
Keyword(s):  
T Cells ◽  
Lymph Node ◽  
Mesenteric Lymph Node ◽  
Natural Infection ◽  
Human Infection ◽  
Abnormal Development ◽  
Hydrocortisone Acetate ◽  
Hymenolepis Nana ◽  
Mesenteric Lymph ◽  
Immunosuppressed Mice

ABSTRACTObservations on the course of Hymenolepis nana infection in immunosuppressed mice are presented. Treatment of the host with hydrocortisone acetate caused superinfection of the bowel with worms and the development of normal cysticercoids in the mesenteric lymph node and liver. Natural infection of mice deprived of their T-cells by pre-adult thymectomy and administration of antithymocyte serum resulted in superinfection and widespread metastasis of aberrant cysticercoids that were greatly enlarged and without scolices, causing death after about five months. The significance of these findings and their possible relevance to human infection with H. nana are discussed.

Accelerated expulsion of adult Trichinella spiralis in mice given lymphoid cells and serum from infected donors

Parasitology ◽  
1976 ◽  
Vol 72 (3) ◽  
pp. 307-315 ◽  
Author(s):  
D. Wakelin ◽  
M. Lloyd
Keyword(s):  
Lymph Node ◽  
Mesenteric Lymph Node ◽  
Adult Stage ◽  
Trichinella Spiralis ◽  
Significant Degree ◽  
Lymphoid Cells ◽  
Mesenteric Lymph ◽  
Lymph Node Cells ◽  
Worm Expulsion

SummaryImmunity to the adult stage of Trichinella spiralis, assessed by an acceleration of worm expulsion, was transferred to recipient mice with mesenteric lymph node cells (MLNC) or serum taken from infected donors. Immunity was transferred most effectively by MLNC taken from donors infected for 8 days, i.e. donors actively responding to infection. Transfer of both MLNC and serum brought about a marked acceleration of worm expulsion in all cases, even where MLNC or serum given separately failed to transfer a significant degree of immunity.

Immune response profiles in vaccinated and non-vaccinated high- and low-responder mice during infection with the intestinal nematode Trichinella spiralis

Parasitology ◽  
1995 ◽  
Vol 110 (1) ◽  
pp. 71-78 ◽  
Author(s):  
K. Robinson ◽  
T. Bellaby ◽  
D. Wakelin
Keyword(s):  
Immune Response ◽  
Lymph Node ◽  
Mesenteric Lymph Node ◽  
Trichinella Spiralis ◽  
Serum Antibody ◽  
Specific Antigen ◽  
Mouse Strains ◽  
Mesenteric Lymph ◽  
Genetically Determined

NIH and C57 BL/10 (BIO) mice show genetically determined differences in their response to Trichinella spiralis infection. This study examines the influence of these on parameters of the immune response to infection after vaccination using muscle-larval excretory–secretory antigen in Freund's complete adjuvant. Serum antibody levels were greatly elevated when mice of both strains were vaccinated prior to infection; however, NIH produced significantly higher-level antibody responses than B10. Vaccination accelerated and increased the capacity of mesenteric lymph node T-cells to proliferate in vitro in response to specific antigen stimulation in both mouse strains but, in general, the stimulation indices of NIH cells were higher than those of the B10. The capacity of mesenteric lymph node cells (MLNC) and spleen cells (SC) to produce IL-5 and γIFN was measured after specific in vitro stimulation and early γIFN secretion was noted in the supernatants of NIH MLNC and SC, but not in B10 SC. Concentrations of IL-S rose steadily over the first 10–14 days after infection in cell cultures from both strains. Prior vaccination of these animals appeared to enhance cytokine levels. It is postulated that the efficacy of vaccination in NIH mice is a consequence of their genetically determined capacity to produce early and high-level responses to the antigens of T. spiralis and to express these in intestinal effector mechanisms.

Transfer of immunity toTrichinella spiralisin the mouse with mesenteric lymph node cells: time of appearance of effective cells in donors and expression of immunity in recipients

Parasitology ◽  
1977 ◽  
Vol 74 (3) ◽  
pp. 215-224 ◽  
Author(s):  
D. Wakelin ◽  
Margaret M. Wilson
Keyword(s):  
Lymph Node ◽  
Mesenteric Lymph Node ◽  
Time Course ◽  
Trichinella Spiralis ◽  
Defence Mechanism ◽  
Spleen Cells ◽  
Mesenteric Lymph Nodes ◽  
Mesenteric Lymph ◽  
Lymph Node Cells ◽  
Worm Expulsion

Cells capable of transferring immunity toTrichinella spiralis, i.e. of accelerating adult worm expulsion, were present in the mesenteric lymph nodes of mice infected for 4, 6 or 8 days, but not in mice infected for only 2 days. The time-course of worm expulsion in mice infected on the day of transfer was similar in recipients of day 8 cells, expulsion becoming marked only when the recipients had been infected for at least 6 days. Transfer of cells 4 or 6 days after infection did not result in an accelerated worm expulsion; transfer 1 or 2 weeks before infection did not enhance the level of immunity in recipient mice. In contrast to the results obtained with mesenteric lymph node cells (MLNC) no immunity was trsnsferred when recipients were given spleen cells taken from donors infected for 8 days. It is suggested that MLNC do not cause worm expulsion directly, but cooperate with another component of the host's defence mechanism. Accelerated expulsion in recipients of cells was accompanied by a premature decline in fecundity of female worms. Evidence is presented to show that worm expulsion and impaired reproduction may represent independent aspects of the immune response toT. spiralis.

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