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2. CD 200/CD 200R paired potent inhibitory molecules regulating immune and inflammatory response
- Creator:
- Holmannová, Drahomíra, Koláčková, Martina, Kondělková, Kateřina, Kuneš, Pavel, Krejsek, Jan, and Andrýs, Ctirad
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, přehledy, and TEXT
- Subject:
- zvířata, antigeny CD--imunologie--terapeutické užití, autoimunitní nemoci--imunologie, nemoci centrálního nervového systému--imunologie, lidé, imunita, nádory--imunologie--terapie, transplantační imunologie, and virové nemoci--imunologie
- Language:
- English
- Description:
- CD200 and its receptor were recognized as having the multiple immunoregulatory functions. Their immunoregulatory, suppressive, and tolerogenic potentials could be very effectively exploited in the treatment of many diseases, e.g. Alzheimer disease, rheumatoid arthritis, and allergy to name only some. Many research projects are aimed to develop clinically valuable methods being based on the structure and function of these paired molecules. In this review, we would like to introduce CD200/CD200R functions in a clinical context., Drahomíra Holmannová, Martina Koláčková, Kateřina Kondělková, Pavel Kuneš, Jan Krejsek, Ctirad Andrýs, and Literatura 51
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
3. CD200/CD200R paired potent inhibitory molecules regulating immune and inflammatory responses
- Creator:
- Holmannová, Drahomíra, Koláčková, Martina, Kondělková, Kateřina, Kuneš, Pavel, Krejsek, Jan, and Andrýs, Ctirad
- Format:
- braille, electronic resource, remote, and elektronický zdroj
- Type:
- model:article, article, Text, statistics, přehledy, práce podpořená grantem, and TEXT
- Subject:
- zvířata, antigeny CD--fyziologie, antigeny povrchové--fyziologie, lidé, imunita--fyziologie, zánět--patofyziologie, receptory buněčného povrchu--fyziologie, and signální transdukce
- Language:
- English
- Description:
- CD200/CD200R are highly conserved type I paired membrane glycoproteins that belong to the Ig superfamily containing a two immunoglobulin‑like domain (V, C). CD200 is broadly distributed in a variety of cell types, whereas CD200R is primarily expressed in myeloid and lymphoid cells. They fulfill multiple functions in regulating inflammation. The interaction between CD200/CD200R results in activation of the intracellular inhibitory pathway with RasGAP recruitment and thus contributes to effector cell inhibition. It was confirmed that the CD200R activation stimulates the differentiation of T cells to the Treg subset, upregulates indoleamine 2,3‑dioxygenase activity, modulates cytokine environment from a Th1 to a Th2 pattern, and facilitates an antiinflammatory IL‑10 and TGF‑β synthesis. CD200/CD200R are required for maintaining self‑tolerance. Many studies have demonstrated the importance of CD200 in controlling autoimmunity, inflammation, the development and spread of cancer, hypersensitivity, and spontaneous fetal loss., Drahomíra Holmannová, Martina Koláčková, Kateřina Kondělková, Pavel Kuneš, Jan Krejsek, Ctirad Andrýs, and Literatura 46
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4. Increase of intracellular BAFF in B cells of Sjögren's patients is not affected by decrease of BAFFR
- Creator:
- Krejsek, Jan, Koláčková, Martina, Lindrová, I., Slezák, Radovan, and Andrýs, Ctirad
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, and TEXT
- Subject:
- faktor aktivující B-buňky--biosyntéza--krev, receptor faktoru aktivujícího B-buňky--biosyntéza, B-lymfocyty--metabolismus, ženské pohlaví, lidé, intracelulární tekutina, intracelulární membrány, mužské pohlaví, lidé středního věku, monocyty--metabolismus, and Sjoegrenův syndrom--metabolismus
- Language:
- English
- Description:
- The presence of a broad spectrum of autoantibodies in Sjögren's syndrome (SjS) patients is the result of abnormal B-cell regulation that can be at least partially explained by abnormal BAFF/BAFFR regulation. The objective of this study was to determine both membrane and intracellular expression of BAFF/BAFFR in monocytes and B-cells in peripheral blood of 19 primary Sjögren's syndrome patients and 20 healthy controls using flow cytometry. We also measured sBAFF in serum. Compared to healthy controls, both surface and intracellular expression of BAFF was significantly increased in monocytes and B-cells of SjS patients. Also serum sBAFF level was elevated. Expression of BAFFR on B-cells of SjS patients was surprisingly decreased, but there was no clear increase or decrease within monocytes. Our results indicate that activated monocytes communicate with B-cells via BAFF and BAFFR, so that B-cells are stimulated, but BAFF is also produced to stimulate cells in autocrine way. The decrease of BAFFR expression in SjS patients suggests that there is the mechanism that attempts to take over in order to balance the high level of BAFF. and J. Krejsek, M. Koláčková, I. Lindrová, R. Slezák, C. Andrýs
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
5. The number of immunoregulatory T cells (Treg) is increased in patients with psoriasis after Goeckerman therapy
- Creator:
- Kondělková, Kateřina, Vokurková, Doris, Krejsek, Jan, Borská, Lenka, Fiala, Zdeněk, Hamáková, Květoslava, and Andrýs, Ctirad
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, and TEXT
- Subject:
- dospělí, dehet uhelný--terapeutické užití, dermatologické látky--terapeutické užití, ženské pohlaví, lidé, počet lymfocytů, mužské pohlaví, lidé středního věku, psoriáza--imunologie--terapie, T-lymfocyty regulační--imunologie, and terapie ultrafialovými paprsky
- Language:
- English
- Description:
- Regulatory T cells (Treg) are a specialized subpopulation of T cells that act to suppress inadequate immune response. Psoriasis is recognized as a T -cell driven immune-mediated systemic inflammatory disease with skin manifestation. Effective therapeutical approach to treat psoriasis is Goeckerman therapy (GT ). The aim of this study was to compare the number of Treg in the peripheral blood of 27 psoriatic patients and 19 controls and to evaluate the influence of GT on Treg population in peripheral blood of patients with psoriasis. There was no significant difference in the relative number of Treg cells in the peripheral blood of healthy blood donors and patients with psoriasis before initiation of GT (P = 0.2668). In contrary, the relative number of Treg cells in peripheral blood of patients with psoriasis after GT was significantly higher than those found in healthy blood donors (P = 0.0019). Moreover, the relative number of Treg is significantly increased in psoriatic patients after Goeckerman therapy compared to the pre-treatment level (P = 0.0042). In conclusion, this significant increase in Treg count after GT is probably associated with amelioration of inflammation by GT , as disease activity expressed as PASI decreased in our patients by GT (P = 0.0001)., Kateřina Kondělková, Doris Vokurková, Jan Krejsek, Lenka Borská, Zdeněk Fiala, Květa Hamáková, Ctirad Andrýs, and Literatura 39
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
6. TLR2 and TLR4 expression on blood monocytes and granulocytes of cardiac surgical patients is not affected by the use of cardiopulmonary bypass
- Creator:
- Krejsek, Jan, Koláčková, Martina, Mand'ák, Jiří, Kuneš, Pavel, Holubcová, Zdeňka, Holmannová, Drahomíra, AbuAttieh, Mouhammed, and Andrýs, Ctirad
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, and TEXT
- Subject:
- staří, kardiopulmonální bypass, kohortové studie, koronární bypass, nemoci koronárních tepen--metabolismus--chirurgie, ženské pohlaví, granulocyty--metabolismus, lidé, mužské pohlaví, lidé středního věku, monocyty--metabolismus, toll-like receptor 2--metabolismus, and toll-like receptor 4--metabolismus
- Language:
- English
- Description:
- Cardiac surgery is inseparably linked to the activation of innate immunity cells recognizing danger signals of both endogenous and exogenous origin via pattern recognition receptors such as TLR receptors. Therefore, we followed by flow cytometry TLR2 and TLR4 expression on blood monocytes and granulocytes of patients who underwent coronary artery bypass grafting using beating heart surgery (off-pump, n = 34), with use of standard cardiopulmonary bypass (CPB), (on-pump, n = 30), and miniinvasive CPB (mini on-pump, n = 25), respectively, before, during surgery, and up to 7th postoperative day. TLR2 and TLR4 expression both on monocytes and granulocytes was significantly diminished already at the end of CPB being highly significantly decreased at the end of surgery in all patients' groups. TLR2 and TLR4 expression reached preoperative value at the 1st postoperative day being significantly higher at the 3rd postoperative day. Using intracellular staining we found the peak of TLR2 and TLR4 expression inside of monocytes and granulocytes at the first postoperative day in a subgroup of on-pump patients. In conclusion, TLR2 and TLR4 expression is significantly modulated in patients undergoing coronary artery bypass grafting as a part of adaptive homeostatic mechanisms induced by major surgery. The very surgical trauma is responsible for TLR2 and TLR4 modulation. Surprisingly, cardiopulmonary bypass itself was little contributing to the modulation of TLR2 and TLR4 expression. and J. Krejsek, M. Kolácková, J. Mand'ák, P. Kunes, Z. Holubcová, D. Holmannová, M. AbuAttieh, C. Andrýs
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public