Differential expression of chemokines in patients with localized and diffuse cutaneous American leishmaniasis.
نویسندگان
چکیده
The abundance of macrophages in localized cutaneous leishmaniasis (LCL) and diffuse cutaneous leishmaniasis (DCL) lesions and differences in the composition of T cell subsets indicate involvement of cell-specific chemotaxis processes. The expression of macrophage chemoattractant protein (MCP)-1, macrophage inflammatory protein (MIP)-1 alpha and -1 beta, RANTES (regulated on activation, normal T cell expressed and secreted), I-309, and interleukin-8 were investigated in lesions of patients with LCL or DCL. In LCL, high levels of MCP-1 and moderate levels of MIP-1 alpha were detected. In DCL, MCP-1 expression was significantly lower and MIP-1 alpha expression was predominant. All other chemokines investigated were minimally expressed or absent. These findings suggest that MCP-1 and MIP-alpha are responsible for the recruitment of macrophages and T cells in cutaneous leishmaniasis. The results show that self-healing LCL is associated with higher levels of MCP-1, which may stimulate macrophage microbicidal mechanisms, and nonhealing DCL is associated with higher levels of MIP-alpha.
منابع مشابه
Chemokines and chemokine receptors expression in the lesions of patients with American cutaneous leishmaniasis
American cutaneous leishmaniasis (ACL) presents distinct active clinical forms with different grades of severity, known as localised (LCL), intermediate (ICL) and diffuse (DCL) cutaneous leishmaniasis. LCL and DCL are associated with a polarised T-helper (Th)1 and Th2 immune response, respectively, whereas ICL, or chronic cutaneous leishmaniasis, is associated with an exacerbated immune respons...
متن کاملUnusual Presentations of Cutaneous Leishmaniasis in Two Iranian Patients
Leishmaniasis affects 1.5-2 million new cases in the world annually. Two major complications of cutaneous leishamaniasis include diffuse cutaneous leishamaniasis (DCL ) occurring in the setting of deficient cell mediated immunity, typically with HIV infection, and chronic cutaneous leishamaniasis (CCL ) developing in approximately 4% of L. tropica infections in Iran and Afghanistan which also m...
متن کاملDown-Regulation of TLR and JAK/STAT Pathway Genes Is Associated with Diffuse Cutaneous Leishmaniasis: A Gene Expression Analysis in NK Cells from Patients Infected with Leishmania mexicana
An important NK-cell inhibition with reduced TNF-α, IFN-γ and TLR2 expression had previously been identified in patients with diffuse cutaneous leishmaniasis (DCL) infected with Leishmania mexicana. In an attempt to pinpoint alterations in the signaling pathways responsible for the NK-cell dysfunction in patients with DCL, this study aimed at identifying differences in the NK-cell response towa...
متن کاملBasal cell carcinoma superimposed on an old scar of localized cutaneous Leishmaniasis: A case report
Basal cell carcinoma (BCC) is the most common malignant tumor of the skin, which originates from the basal cell layer of the skin. It is more common in white race with skin types I and II. Some predisposing factors are sunlight, ionizing radiation, arsenic salts, PUVA and scar. We present a case of BCC, which appeared over an old scar of localized cutaneous leishmaniasis in a 49-year-old woman.
متن کاملRegulation of Leishmania (L.) amazonensis Protein Expression by Host T Cell Dependent Responses: Differential Expression of Oligopeptidase B, Tryparedoxin Peroxidase and HSP70 Isoforms in Amastigotes Isolated from BALB/c and BALB/c Nude Mice
Leishmaniasis is an important disease that affects 12 million people in 88 countries, with 2 million new cases every year. Leishmania amazonensis is an important agent in Brazil, leading to clinical forms varying from localized (LCL) to diffuse cutaneous leishmaniasis (DCL). One interesting issue rarely analyzed is how host immune response affects Leishmania phenotype and virulence. Aiming to s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of infectious diseases
دوره 173 3 شماره
صفحات -
تاریخ انتشار 1996