Kinetics of local tissue and regional lymph node IL-2 and IFN-γ responses in experimental oral mucosa and skin contact sensitivity in mice

2010 ◽  
Author(s):  
Eva Elisabeth Ahlfors ◽  
Torstein Lyberg
Keyword(s):  
Lymph Node ◽  
Oral Mucosa ◽  
Regional Lymph Node ◽  
Contact Sensitivity ◽  
Local Tissue ◽  
Skin Contact ◽  
Ifn Γ ◽  
Kinetics Of

scholarly journals REGULATORY MECHANISMS IN CELL-MEDIATED IMMUNE RESPONSES

1974 ◽  
Vol 140 (6) ◽  
pp. 1588-1603 ◽  
Author(s):  
Susan Solliday Rich ◽  
Robert R. Rich
Keyword(s):  
Lymph Node ◽  
Regional Lymph Node ◽  
Cell Activity ◽  
Suppressor Cell ◽  
Spleen Cells ◽  
Cytotoxic Effects ◽  
Lymph Node Cells ◽  
Regulatory Effects ◽  
Kinetics Of

Regulatory effects of alloantigen-activated thymus-derived lymphocytes in mixed lymphocyte reactions have been demonstrated. Mice were injected into foot pads with allogeneic spleen cells; 4 days following sensitization spleen or regional lymph node cells from these animals were treated with mitomycin C and incorporated into MLR as regulator populations syngeneic to the responder cell type. Activated spleen cells suppressed MLR responses 60–90% whereas activated lymph node cells from the same animals enhanced MLR responses. Suppression by activated spleen cells was not due to cytotoxic effects nor to altered kinetics of the proliferative response. Studies of splenic suppressor cell generation in vivo revealed peak activity four days after alloantigen stimulation with no activity demonstrable at 7 days or at later times. Suppressor cell activity was abrogated by treatment with anti-θC3H serum and complement, and was not alloantigen specific.

scholarly journals Cellular and Cytokine Correlates of Mucosal Protection in Murine Model of Oral Candidiasis

2000 ◽  
Vol 68 (10) ◽  
pp. 5771-5777 ◽  
Author(s):  
Shokrollah Elahi ◽  
Gerald Pang ◽  
Robert Clancy ◽  
Robert B. Ashman
Keyword(s):  
Lymph Node ◽  
T Cell ◽  
Regional Lymph Node ◽  
Oral Candidiasis ◽  
T Cell Response ◽  
Interleukin 4 ◽  
Mouse Strains ◽  
Carriage Rate ◽  
Lymph Node Cells ◽  
Ifn Γ

ABSTRACT Host protection against Candida albicans infection in a model of oral candidiasis involving infection-prone [DBA/2 (H-2d )] and less infection-prone [BALB/c (H-2d )] mouse strains was analyzed in terms of antibody and cellular responses, and in terms of cytokine patterns from regional lymph node cells. There was a selective expansion of γ/δ+ T-cell receptor cells, which correlated with the patterns of colonization in both mouse strains, with higher numbers of γ/δ T cells detected in BALB/c mice. Antigen-induced T-cell proliferation was significantly higher in BALB/c mice than in DBA/2 mice. Higher levels of serum immunoglobulin G (IgG) and salivary IgA antibodies were detected in BALB/c mice than in DBA/2 mice, but only after the infection was cleared. The cervical lymph node cells from infected mice were assessed for interleukin-4 (IL-4), IL-12, and gamma interferon (IFN-γ) mRNA gene expression by reverse transcription-PCR and protein production in the culture supernatants following restimulation in vitro. In BALB/c mice, an early increase in levels of IL-4, IFN-γ, and IL-12 correlated with rapid elimination of C. albicans. In DBA/2 mice, where resolution of infection was delayed, IL-4 message expression was delayed and the IL-4 secretion level was lower. Neutralization of IL-4 by multiple injections of an anti-IL-4 monoclonal antibody in BALB/c mice resulted in increased carriage rate and delayed clearance of the yeasts. Collectively, the data suggest that the T-cell response to C. albicans in the regional lymph nodes which correlates best with rapid oral clearance ofC. albicans is a balanced Th0 cytokine response involving early secretion of both IFN-γ and IL-4.

Kinetics of protoporphyrin IX formation in rat oral mucosa and skin after application of 5-aminolevulinic acid and its methylester

2004 ◽  
Author(s):  
Stefan Kristiansson ◽  
Asta Juzeniene ◽  
Petras Juzenas ◽  
Vladimir Iani ◽  
Lennart Löfgren ◽  
...  
Keyword(s):  
Oral Mucosa ◽  
Aminolevulinic Acid ◽  
Protoporphyrin Ix ◽  
Kinetics Of

EVALUATION OF CLINICAL AND PARACLINICAL FEATURES IN PATIENTS WITH CARCINOMA OF ORAL CAVITY

2016 ◽  
pp. 56-60
Author(s):  
Van Minh Nguyen ◽  
Hong Loi Nguyen ◽  
Thi Kim Anh Dang
Keyword(s):  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Oral Cavity ◽  
Tumor Size ◽  
Regional Lymph Node ◽  
Regional Lymph Node Metastasis ◽  
Female Ratio ◽  
Histopathological Grade ◽  
Node Metastasis ◽  
Metastasis Rate

Background: To evaluate the clinical, hystopathologycal features and correlation between lymph node metastasis and hystopathologycal grade in patients with carcinoma of the oral cavity. Materials and Methods: From July 2015 to July 2016, 32 patients with carcinoma of the oral cavity at Hue Central Hospital Results: The most common age group from 51 to 60 years and the male/female ratio was 1.9/1. Tumor were usually observed around the the tongue (40.6%) and oral floor (34.4%). Most of the tumor size is larger than 2 cm diameters (> 80%). The regional lymph node metastasis rate was 43.8% and there was a positive correlation between lymph node metastasis and tumor size (p <0.05). Squamous-cell carcinoma was mainly type of histopathology. Difference between the rate of lymph node metastasis in patient groups with different histopathological grade show no statistical significance (p> 0.05). Conclusion: the greater tumor, the higher regional lymph node metastasis. There is no relationship between the lymph node metastasis rate and histopathological grade of oral carcinoma. Key words: : carcinoma of oral cavity, tumor size, lymph node metastasis, histopathology

scholarly journals Invasion of the pterygoid plates: an indicator for regional lymph node failure in maxillary sinus cancer

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Yasuo Kosugi ◽  
Terufumi Kawamoto ◽  
Masaki Oshima ◽  
Mitsuhisa Fujimaki ◽  
Shinichi Ohba ◽  
...  
Keyword(s):  
Lymph Node ◽  
Oral Cavity ◽  
Maxillary Sinus ◽  
Regional Lymph Node ◽  
Locally Advanced ◽  
Intraarterial Chemotherapy ◽  
Node Failure ◽  
Long Term Treatment ◽  
Maxillary Sinus Cancer ◽  
Sinus Cancer

Abstract Background The aim of this study was to evaluate the long-term treatment results of combined superselective intraarterial chemotherapy and radiation therapy for advanced maxillary sinus cancer (MSC) and the incidence of regional lymph node failure, and to reveal the clinical and anatomical predictive factors for metastasis. Methods We retrospectively evaluated 55 consecutive patients with locally advanced squamous cell carcinoma of the maxillary sinus who were treated with external radiotherapy and superselective intraarterial chemotherapy. Elective nodal irradiation (ENI) was performed only in the clinical node-positive (cN+) cases and not in the clinical node-negative (cN0) cases. Results: Thirty-eight patients were cN0, and 17 were cN+ at diagnosis. Regional lymph node metastases occurred in 7 of 38 patients with cN0, and 2 of 17 with cN+ during the median follow-up period of 36 months. There were more cases of high-grade (3 or 4) late adverse events in the ENI group than in the non-ENI group (13% vs. 41%, respectively; p = 0.03). In cN0 cases without ENI, invasion of the pterygoid plates (57% vs. 90%; p < 0.01) and oral cavity (35% vs. 92%, with invasion vs without invasion, respectively; p = 0.02) was significantly correlated with a low 5-year regional recurrence-free rate. Conclusions Patients with MCS and invasion of the pterygoid plates and oral cavity can be considered appropriate candidates for ENI.

scholarly journals Cutaneous Melanomas Arising during Childhood: An Overview of the Main Entities

2021 ◽  
Vol 8 (3) ◽  
pp. 301-314
Author(s):  
Arnaud de la Fouchardière ◽  
Felix Boivin ◽  
Heather C. Etchevers ◽  
Nicolas Macagno
Keyword(s):  
Lymph Node ◽  
Regional Lymph Node ◽  
Germline Mutations ◽  
Epithelioid Cells ◽  
Superficial Spreading ◽  
Superficial Spreading Melanoma ◽  
Cancer Predisposition Syndrome ◽  
Specific Morphology ◽  
Genetic Features ◽  
Molecular Assessment

Cutaneous melanomas are exceptional in children and represent a variety of clinical situations, each with a different prognosis. In congenital nevi, the risk of transformation is correlated with the size of the nevus. The most frequent type is lateral transformation, extremely rare before puberty, reminiscent of a superficial spreading melanoma (SSM) ex-nevus. Deep nodular transformation is much rarer, can occur before puberty, and must be distinguished from benign proliferative nodules. Superficial spreading melanoma can also arise within small nevi, which were not visible at birth, usually after puberty, and can reveal a cancer predisposition syndrome (CDKN2A or CDK4 germline mutations). Prognosis is correlated with classical histoprognostic features (mainly Breslow thickness). Spitz tumors are frequent in adolescents and encompass benign (Spitz nevus), intermediate (atypical Spitz tumor), and malignant forms (malignant Spitz tumor). The whole spectrum is characterized by specific morphology with spindled and epithelioid cells, genetic features, and an overall favorable outcome even if a regional lymph node is involved. Nevoid melanomas are rare and difficult to diagnose clinically and histologically. They can arise in late adolescence. Their prognosis is currently not very well ascertained. A small group of melanomas remains unclassified after histological and molecular assessment.

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