15 research outputs found

    INFLUENCE OF PROBIOTICS ON CYTOKINE PRODUCTION IN THE IN VITRO AND IN VIVO SYSTEMS

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    Modulatory effects of three probiotic bacterial strains (Lactobacillus rhamnosus K32 (L), Bifidobacterium longum GT15 (B, Enterococcus faecium L-3 (E) on expression level and contents of key cytokines were studied using PCR techniques with reverse transcription, and enzyme-linked immunosorbent assay. Both cell cultures and an experimental model of intestinal dysbiosis were used in this study.The genes encoding bacteriocins, surface membrane component, pili and exopolysaccharides involved in host immune system modulation were previously identified in the B and Ebacterial strains.Investigation of probiotic strains and effects of their supernatants expression of cytokines in cell cultures of promonocyte origin (HTP-1) showed increased expression of TNFΞ±, due to E and L supernatants. Moreover, the Bl culture induced IL-8 and IL-10 expression.In a model of Wistar rats with ampicillinand metronidazole-induced intestinal dysbiosis corrected with probiotics we have shown that the dysbiosis was accompanied by sufficient alterations in microbiota composition (Klebsiella spp. overgrowth and low contents of Faecalobacterium prausnitzii) that were observed only in the animals untreated with probiotics (control), or after administration of L.In contrast to these results, the animals treated with E and B, the following changes were revealed: 1) low expression of proinflammatory cytokines IL-8, TNFΞ±, MCP-1 inmesenteric lymph nodes and appropriate changes of their serum contents, 2) increased serum content of the anti-inflammatory TGFΞ² cytokine. Hence, the present study, having used two complementary models, has detected some individual features of immune modulation produced by the probiotictic strains of L. rhamnosus K32, B. longum GT15 ΠΈ E. faecium L-3 which exert differential effects upon the intestinal microbiota

    Evaluation of probiotic lactobacillus as adjuvants for nasal immunization with chimeric pneumococcal vaccine

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    Vaccine protection against photogenic gram-positive bacteria including different species ofstreptococci is an important problem of contemporary molecular biology. Streptococcal infections are mostcommon bacterial infections surpassing by the economic losses all the infections excluding influenza. The gatesof streptococcal infection, oral cavity or vagina, are covered with immune and non-immune mucosal cells thatare the first line of defenses. Subcutaneous immunization not always stimulate the local immunity on mucosalsurfaces. On the other hand, mucosal vaccination can provide an appropriate local immune response togetherwith systemic protection. However, mucosal immunization often requires usage of special and effectiveadjuvants especially in case of vaccines based on recombinant proteins.For protection against Streptococcus pneumoniae infection, two chimeric recombinant proteins (PSPF andPSP) have been tested as vaccines. Recombinant proteins PSPF and PSP carry immunogenic epitopes fromthe respiratory pathogen including PspA, Spr1875 and PsaA. PSPF structure also carries a fraction of flagellin-FliC molecule in comparison with PSP, which does not have this fragment. This portion of PSPF was includedas internal adjuvant intended for the stimulation of Toll-like receptor 5.In this work, the adjuvant capacity of two probiotic strains, Lactobacillus rhamnosus CRL1505 andL. rhamnosus L32 was evaluated. It was demonstrated that both lactic acid bacteria strains were able to provideadjuvant effects by enhancing the mucosal and systemic immune responses after their co-administration withthe recombinant chimeric protein PSPF. The adjuvant effect of both Lactobacillus strains was significantlydecreased after their thermal inactivation. However, the cell walls of bacteria showed a marked adjuvant activity.An improved protection against several S. pneumoniae serotypes after mucosal immunization of infant micewith PSPF vaccine with probiotic strains or their cell walls was also demonstrated here.The recombinant chimeric protein PSPF administered with immunomodulatory probiotic strains or theirbacterial components would be a promising vaccine for immunization of humans against S. pneumoniae,particularly in children.Одной ΠΈΠ· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹Ρ… Π·Π°Π΄Π°Ρ‡ ΠΌΠ΅Π΄ΠΈΠΊΠΎ-биологичСской Π½Π°ΡƒΠΊΠΈ являСтся созданиС Π²Π°ΠΊΡ†ΠΈΠ½Π½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² ΠΏΡ€ΠΎΡ‚ΠΈΠ² ΠΏΠ°Ρ‚ΠΎΠ³Π΅Π½Π½Ρ‹Ρ… стрСптококков – самых распространСнных Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒ-Π½Ρ‹Ρ… Π²ΠΎΠ·Π±ΡƒΠ΄ΠΈΡ‚Π΅Π»Π΅ΠΉ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°, экономичСский ΡƒΡ‰Π΅Ρ€Π± ΠΎΡ‚ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… уступаСт лишь потСрям ΠΎΡ‚ Π³Ρ€ΠΈΠΏΠΏΠΎΠ·Π½ΠΎΠΉ ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ. Π’Ρ…ΠΎΠ΄Π½Ρ‹ΠΌΠΈ Π²ΠΎΡ€ΠΎΡ‚Π°ΠΌΠΈ стрСптококковой ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ слизистыС ΠΎΠ±ΠΎ-Π»ΠΎΡ‡ΠΊΠΈ рСспираторного ΠΈ ΠΌΠΎΡ‡Π΅ΠΏΠΎΠ»ΠΎΠ²ΠΎΠ³ΠΎ Ρ‚Ρ€Π°ΠΊΡ‚Π°. ΠŸΠ°Ρ€Π΅Π½Ρ‚Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΉ способ ввСдСния Π²Π°ΠΊΡ†ΠΈΠ½ Π½Π΅ всСгда позволяСт Π΄ΠΎΠ±ΠΈΠ²Π°Ρ‚ΡŒΡΡ ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²ΠΎ эффСктив-Π½ΠΎΠΉ стимуляции мСстного ΠΈΠΌΠΌΡƒΠ½ΠΈΡ‚Π΅Ρ‚Π° Π½Π° слизистых ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠ°Ρ…, Π° Π²Π°ΠΊΡ†ΠΈΠ½Ρ‹, Π²Π²ΠΎΠ΄ΠΈΠΌΡ‹Π΅ Ρ‡Π΅Ρ€Π΅Π· слизи-стыС ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΈ, способны эффСктивно ΡΡ‚ΠΈΠΌΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΈΠΌΠΌΡƒΠ½Π½ΡƒΡŽ Π·Π°Ρ‰ΠΈΡ‚Ρƒ Π² области ввСдСния, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΡ‚ΡŒ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ систСмного ΠΈΠΌΠΌΡƒΠ½Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π²Π΅Ρ‚Π°. Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅ Ρ‡Π΅Ρ€Π΅Π· слизистыС ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΈ Π²Π°ΠΊΡ†ΠΈΠ½Π½Ρ‹Ρ… ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² Π±Π΅Π»ΠΊΠΎΠ²ΠΎΠΉ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ исполь-зования ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… эффСктивных ΠΈ бСзопасных Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚ΠΎΠ², ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ Ρ€Π΅ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Π½Ρ‚Π½Ρ‹Π΅ Π±Π΅Π»ΠΊΠΈ ΠΎΠ±Ρ‹Ρ‡Π½ΠΎ ΠΏΡ€ΠΎΡΠ²Π»ΡΡŽΡ‚ Π½Π΅Π΄ΠΎΡΡ‚Π°Ρ‚ΠΎΡ‡Π½ΡƒΡŽ ΠΌΠΌΡƒΠ½ΠΎΠ³Π΅Π½Π½ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΈ Ρ‚Π°ΠΊΠΎΠΌ способС ввСдСния. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ Π² качСствС Π²Π°ΠΊΡ†ΠΈΠ½Π½Ρ‹Ρ… Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚ΠΎΠ² ΠΏΡ€ΠΈ ΠΌΡƒΠΊΠΎΠ·Π°Π»ΡŒΠ½ΠΎΠΉ ΠΈΠΌΠΌΡƒΠ½ΠΈΠ·Π°Ρ†ΠΈΠΈ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹Ρ… ΠΆΠΈΠ²ΠΎΡ‚Π½Ρ‹Ρ… ΠΏΠ½Π΅Π²ΠΌΠΎΠΊΠΎΠΊΠΊΠΎΠ²Ρ‹ΠΌΠΈ Ρ…ΠΈΠΌΠ΅Ρ€Π½Ρ‹ΠΌΠΈ Ρ€Π΅ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Π½Ρ‚Π½Ρ‹ΠΌΠΈ Π±Π΅Π»ΠΊΠ°ΠΌΠΈ PSPF ΠΈ PSP Π±Ρ‹Π»ΠΈ Π°ΠΏΡ€ΠΎΠ±ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ Π΄Π²Π° ΡˆΡ‚Π°ΠΌΠΌΠ° ΠΏΡ€ΠΎΠ±ΠΈΠΎΡ‚ΠΈΠΊΠΎΠ² – Lactobacillus rhamnosus CRL1505 ΠΈ L32. Π Π΅ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Π½Ρ‚Π½Ρ‹Π΅ Ρ…ΠΈΠΌΠ΅Ρ€Π½Ρ‹Π΅ Π±Π΅Π»ΠΊΠΈ PSPF ΠΈ PSP нСсут Π² своСй структурС нСсколько ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π΅Π½Π½Ρ‹Ρ… эпитопов PspA, Spr1875, PsaA ΠΈ ΠΏΡ€Π΅Π΄Π½Π°Π·Π½Π°Ρ‡Π΅Π½Ρ‹ для Π²Π°ΠΊΡ†ΠΈΠ½Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΎΡ‚ΠΈΠ² ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ Streptococcus pneumoniae. Π‘Π΅Π»ΠΊΠΈ, ΠΎΡ‚Π»ΠΈΡ‡ΠΈΠ΅ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… связано с присутствиСм Π² струк-Ρ‚ΡƒΡ€Π΅ PSPF участка ΠΌΠΎΠ»Π΅ΠΊΡƒΠ»Ρ‹ Ρ„Π»Π°Π³Π΅Π»Π»ΠΈΠ½Π° – FliC, ΠΏΠΎ-Ρ€Π°Π·Π½ΠΎΠΌΡƒ стимулировали ΠΈΠΌΠΌΡƒΠ½Π½Ρ‹ΠΉ ΠΎΡ‚Π²Π΅Ρ‚ ΠΏΡ€ΠΈ совмСстном Π²Π²Π΅Π΄Π΅Π½ΠΈΠΈ с двумя ΡˆΡ‚Π°ΠΌΠΌΠ°ΠΌΠΈ ΠΏΡ€ΠΎΠ±ΠΈΠΎΡ‚ΠΈΠΊΠΎΠ². УстановлСно, Ρ‡Ρ‚ΠΎ ΠΎΠ±Π° исслСдованных ΡˆΡ‚Π°ΠΌ-ΠΌΠ° L. rhamnosus Π±Ρ‹Π»ΠΈ способны ΠΎΠΊΠ°Π·Ρ‹Π²Π°Ρ‚ΡŒ Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½Ρ‹ΠΉ эффСкт ΠΏΡ€ΠΈ ΠΈΠ½Ρ‚Ρ€Π°Π½Π°Π·Π°Π»ΡŒΠ½ΠΎΠΌ Π²Π²Π΅Π΄Π΅Π½ΠΈΠΈ Π²Π°ΠΊ-Ρ†ΠΈΠ½Π½Ρ‹Ρ… Π±Π΅Π»ΠΊΠΎΠ², ΠΏΡ€ΠΎΡΠ²Π»ΡΠ²ΡˆΠΈΠΉΡΡ Π² усилСнии сСкрСторного ΠΈ Π³ΡƒΠΌΠΎΡ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡƒΠ½Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π²Π΅Ρ‚Π° Π½Π° со-вмСстно Π²Π²Π΅Π΄Π΅Π½Π½Ρ‹ΠΉ Ρ€Π΅ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Π½Ρ‚Π½Ρ‹ΠΉ Ρ…ΠΈΠΌΠ΅Ρ€Π½Ρ‹ΠΉ Π±Π΅Π»ΠΎΠΊ PSPF. Π’Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΠΎΠΉ стимуляции ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ спСцифичСских IgA носовых смывов ΠΈ IgG сыворотки ΠΊΡ€ΠΎΠ²ΠΈ Π½Π° PSP ΠΏΠΎΠ΄ влияниСм L. rhamnosus L32 Π½Π΅ происходило. ΠΠ΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½Ρ‹ΠΉ эффСкт ΠΎΡ‚ Π²Π²ΠΎΠ΄ΠΈΠΌΡ‹Ρ… лактобациллярных ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ² сущСствСнно сни-Тался послС Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠΉ ΠΈΠ½Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ, ΠΎΠ΄Π½Π°ΠΊΠΎ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… стСнок L. rhamnosus CRL1505 проявлял Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΡƒΡŽ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ. Бтимуляция ΠΈΠΌΠΌΡƒΠ½Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π²Π΅Ρ‚Π° Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π°ΠΌΠΈ ΠΏΡ€ΠΈΠ²ΠΎΠ΄ΠΈΠ»Π° ΠΊ ΡƒΡΠΈΠ»Π΅Π½ΠΈΡŽ ΠΏΡ€ΠΎΡ‚Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ эффСкта Π²Π°ΠΊΡ†ΠΈΠ½Ρ‹ Π² экспСримСнтах Π½Π° Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹Ρ… ΠΆΠΈΠ²ΠΎΡ‚Π½Ρ‹Ρ…, ΠΈΠ½Ρ„ΠΈΡ†ΠΈ-Ρ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… S. pneumoniae. УстановлСно, Ρ‡Ρ‚ΠΎ Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΡˆΡ‚Π°ΠΌΠΌΡ‹ Π»Π°ΠΊΡ‚ΠΎΠ±Π°Ρ†ΠΈΠ»Π», Π² частности Lactobacillus rhamnosus CRL1505 ΠΈ L32, ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ Π² качСствС Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚ΠΎΠ² Π² составС ΠΌΡƒΠΊΠΎΠ·Π°Π»ΡŒΠ½Ρ‹Ρ… Π²Π°ΠΊΡ†ΠΈΠ½, ΠΎΠ΄Π½Π°ΠΊΠΎ эта ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒ зависит ΠΎΡ‚ свойств Π²Π°ΠΊΡ†ΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° ΠΈ Ρ„ΠΎΡ€ΠΌΡ‹ ввСдСния ΠΏΡ€ΠΎΠ±ΠΈΠΎΡ‚ΠΈΠΊΠΎΠ².Fil: Leontieva, G. F.. Institute of Experimental Medicine; RusiaFil: Kramskaya, T. A.. Institute of Experimental Medicine; RusiaFil: Grabovskaya, K. B.. Institute of Experimental Medicine; Rusia; RusiaFil: Filimonova, V. Yu.. Institute of Experimental Medicine; Rusia; RusiaFil: LaiΓ±o, Jonathan Emiliano. Consejo Nacional de Investigaciones CientΓ­ficas y TΓ©cnicas. Centro CientΓ­fico TecnolΓ³gico Conicet - TucumΓ‘n. Centro de Referencia para Lactobacilos; ArgentinaFil: Villena, Julio Cesar. Consejo Nacional de Investigaciones CientΓ­ficas y TΓ©cnicas. Centro CientΓ­fico TecnolΓ³gico Conicet - TucumΓ‘n. Centro de Referencia para Lactobacilos; ArgentinaFil: Alvarez, Gladis Susana. Consejo Nacional de Investigaciones CientΓ­ficas y TΓ©cnicas. Centro CientΓ­fico TecnolΓ³gico Conicet - TucumΓ‘n. Centro de Referencia para Lactobacilos; ArgentinaFil: Danilenko, V. N.. Academy of Sciences. Institute of General Genetics. Head, Division of Fundamental Genetic Studies in Biotechnology; RusiaFil: Suvorov, A. N.. St. Peterburg State University; Rusia. Institute of Experimental Medicine. Head, Division of Molecular Microbiology; Rusi

    Eribulin-trastuzumab combination in HER2-positive metastatic breast cancer: updated results from a Russian observational study

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    Introduction. TheΒ standard ofΒ 1st line treatment ofΒ HER2+ metastatic breast cancer (mBC) is double blockade with trastuzumab and pertuzumab + taxane, 2nd line – Trastuzumab-emtazine. There are no standards forΒ further treatment, as well as theΒ optimal drug sequence. Expansion ofΒ theΒ arsenal ofΒ therapeutic possibilities and theΒ use ofΒ new combinations will certainly improve theΒ results ofΒ treatment ofΒ this category ofΒ patients and increase their life expectancy.Aim. We sought to describe treatment patterns ofΒ  eribulinΒ  and clinical outcomes ofΒ  metastatic HER2-positive breast cancer treated with eribulinΒ  plus trastuzumab combination inΒ  academic institutions and community oncology practices across theΒ Russian Federation.Materials and methods. Patients treated with eribulinΒ anytime between Jan, 2014Β and Sep, 2019Β with aΒ diagnosis ofΒ MBC were identified by 23Β providers from Russia. Providers retrospectively reviewed theΒ health records and abstracted selected dataΒ points into an electronic case report form forΒ each eligible patient.Results. 100Β HER2-positive pts received eribulinΒ inΒ combination with trastuzumab. Median age was 55Β (31–80) yrs and ECOG status 0–3. 67% pts had visceral metastases. EribulinΒ was administered as 1st and 2nd line to 23Β (23%) pts, 3rd line to 31Β (31%) pts, 4th line and later to 46Β (46%). Median number ofΒ cycles was 5Β (2–27). ORR was 12%, SD – 72%, SDΒ >Β 6Β months – 23%, PD – 16%. Clinical efficacy rate achieved inΒ 35%. Median PFS was 5.07Β months (95% CI 4.021–6.119). According to theΒ ER-status theΒ response to eribulinΒ and trastuzumab was different. ORR was 18.8%, SD 72.9% inΒ pts with ER-positive MBC (nΒ =Β 48) and 5.8% and 71.2% respectively inΒ ER-negative MBC (nΒ =Β 52). Median PFS was 6.97Β months (95% CI 3.924–10.016) inΒ pts with ER-positive MBC and 4.67Β months (95% CI 3.841–5.499) inΒ ER-negative MBC (Ρ€Β =Β 0.3). TheΒ combination was well tolerated: dose reductions were required inΒ 12% pts, withdrawal due to toxicity inΒ 4% pts. TheΒ most common type ofΒ toxicity was hematological with neutropeniaΒ Gr III-IV inΒ 14Β (14%) pts. Peripheral neuropathy Gr III was observed inΒ 5Β (5%) pts. No cardiotoxicity was detected.Conclusions. This is the real-life data of clinical outcomes for patients receiving eribulin plus trastuzumab for HER2-positive MBC throughout the Russian Federation. Our experience with eribulin plus trastuzumab demonstrates that this combination may be a potential effective treatment option for HER-2 positive MBC patients

    Π‘ΠžΠ‘Π‘Π’Π’Π•ΠΠΠ«Π™ ОПЫВ ΠŸΠ Π˜ΠœΠ•ΠΠ•ΠΠ˜Π― Π­Π Π˜Π‘Π£Π›Π˜ΠΠ Π’ Π£Π‘Π›ΠžΠ’Π˜Π―Π₯ Π Π•ΠΠ›Π¬ΠΠžΠ™ ΠšΠ›Π˜ΠΠ˜Π§Π•Π‘ΠšΠžΠ™ ПРАКВИКИ Π“. ΠœΠžΠ‘ΠšΠ’Π« И ΠœΠžΠ‘ΠšΠžΠ’Π‘ΠšΠžΠ™ ΠžΠ‘Π›ΠΠ‘Π’Π˜

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    Introduction. Eribulin, an non-taxane microtubule inhibitor, has been registered in Russia for patients with locally advanced or metastatic breast cancer (mBC) who received at least one chemotherapy regimen for a advanced disease, previous therapy should include anthracyclines and taxanes in adjuvant or metastatic setting, except the patients who could not be prescribed these drugs. We present our experience with eribulin in real clinical practice in Moscow and the Moscow Region.Patients and methods. We conducted a retrospective analysis of the experience with the use of eribulin in Moscow and the Moscow Region in 202 patients with mBC from January 2016 to February 2017 to assess the effectiveness and safety of the drug. All patients received previous therapy with anthracyclines and taxanes for locally advanced and / or metastatic cancer. The average age of patients at the time of inclusion in the analysis was 5 years (28–81). The status of the general condition on the ECOG 0-1 scale was registered in 81.3 % (100 / 123) of patients, the status of ECOG 2-3 in 18.7 % (23 / 123) of patients. The median of the number of courses of chemotherapy with eribulin is 4 (2–17). Patients received eribulin in 1-7 chemotherapy lines for metastatic disease. The average number of affected organs is 2 (1–5).Results. Complete response (CR) was in 3 (2 %) patients. Partial response (PR) was in 24 (15.7 %) patients, stabilization of the disease – in 89 (58. 2 %). Progression of the disease was recorded in 37 (24.1 %) patients. The median of progression-free survival (PFS) on the therapy was 4.64 (95 % CI 2.97-6.87) months. Stabilization of the disease for more than 6 months was registered in 28 (18.3 %) patients. The most significant toxicity was neutropenia and polyneuropathy (21 patients (10.4 %) and 7 patients (3.5 %), respectively).Dose reduction due to neutropenia was required by 26 patients (12.9 %). The objective response rate (ORR) depended on the chemotherapy line: in 1-3 lines the efficacy of the treatment was higher: the ORR was 21.6 %, compared to the 4th and subsequent lines – 12.3 %, respectively. With HER2-positive mBC, eribulin showed clinically significant results in combination with trastuzumab.Conclusions. Our analysis confirms that eribulin has a predictable and manageable safety profile, is an effective drug for the treatment of patients with different subtypes of mBC in a real clinical setting.Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅. Π­Ρ€ΠΈΠ±ΡƒΠ»ΠΈΠ½ – ΠΈΠ½Π³ΠΈΠ±ΠΈΡ‚ΠΎΡ€ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ ΠΌΠΈΠΊΡ€ΠΎΡ‚Ρ€ΡƒΠ±ΠΎΡ‡Π΅ΠΊ нСтаксанового ряда, зарСгистрирован Π² России для ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с мСстнораспространСнным ΠΈΠ»ΠΈ мСтастатичСским Ρ€Π°ΠΊΠΎΠΌ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ (ΠΌΠ ΠœΠ–), ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ²ΡˆΠΈΠΌ Ρ€Π°Π½Π΅Π΅ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ ΠΎΠ΄Π½ΠΎΠ³ΠΎ Ρ€Π΅ΠΆΠΈΠΌΠ° Ρ…ΠΈΠΌΠΈΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠΈ ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρƒ распространСнного заболСвания; ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²ΡƒΡŽΡ‰Π°Ρ тСрапия Π΄ΠΎΠ»ΠΆΠ½Π° Π²ΠΊΠ»ΡŽΡ‡Π°Ρ‚ΡŒ Π°Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΊΠ»ΠΈΠ½Ρ‹ ΠΈ таксаны Π² Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½ΠΎΠΌ Ρ€Π΅ΠΆΠΈΠΌΠ΅ ΠΈΠ»ΠΈ Π² условиях мСтастатичСской Ρ„ΠΎΡ€ΠΌΡ‹ заболСвания, Π·Π° ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ΠΌ Ρ‚Π΅Ρ… ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌ Π½Π΅ ΠΌΠΎΠ³Π»ΠΈ Π½Π°Π·Π½Π°Ρ‡Π°Ρ‚ΡŒΡΡ Π΄Π°Π½Π½Ρ‹Π΅ ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Ρ‹. Π’ настоящСй Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСн собствСнный ΠΎΠΏΡ‹Ρ‚ примСнСния эрибулина Π² условиях Ρ€Π΅Π°Π»ΡŒΠ½ΠΎΠΉ клиничСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠΈ Π³. ΠœΠΎΡΠΊΠ²Ρ‹ ΠΈ Московской области.ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚Ρ‹β€‰ΠΈβ€‰ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ рСтроспСктивный Π°Π½Π°Π»ΠΈΠ· ΠΎΠΏΡ‹Ρ‚Π° примСнСния эрибулина Π² Π³. МосквС ΠΈ Московской области Ρƒ 202 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с ΠΌΠ ΠœΠ– с января 2016 ΠΏΠΎ Ρ„Π΅Π²Ρ€Π°Π»ΡŒ 2017 Π³. для ΠΎΡ†Π΅Π½ΠΊΠΈ эффСктивности ΠΈ бСзопасности ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π°. ВсС Π±ΠΎΠ»ΡŒΠ½Ρ‹Π΅ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²ΡƒΡŽΡ‰ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠΈΡŽ с использованиСм Π°Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΊΠ»ΠΈΠ½ΠΎΠ² ΠΈ таксанов ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρƒ мСстнораспространСнного ΠΈ / ΠΈΠ»ΠΈ мСтастатичСского Ρ€Π°ΠΊΠ°. Π‘Ρ€Π΅Π΄Π½ΠΈΠΉ возраст ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π½Π° ΠΌΠΎΠΌΠ΅Π½Ρ‚ Π²ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΡ Π² Π°Π½Π°Π»ΠΈΠ· составил 58 Π»Π΅Ρ‚ (28–81). Бтатус ΠΎΠ±Ρ‰Π΅Π³ΠΎ состояния ΠΏΠΎ шкалС ECOG 0–1 зарСгистрирован Ρƒ 81,3 % (100 / 123) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…, статус Π•COG 2–3 – Ρƒ 18,7 % (23 / 123) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². МСдиана числа ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… курсов Ρ…ΠΈΠΌΠΈΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠΈ эрибулином – 4 (2–17). ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚Ρ‹ ΠΏΠΎΠ»ΡƒΡ‡Π°Π»ΠΈ эрибулин Π² 1–7 линиях Ρ…ΠΈΠΌΠΈΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠΈ ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρƒ мСтастатичСской Ρ„ΠΎΡ€ΠΌΡ‹ заболСвания. Π‘Ρ€Π΅Π΄Π½Π΅Π΅ количСство ΠΏΠΎΡ€Π°ΠΆΠ΅Π½Π½Ρ‹Ρ… ΠΎΡ€Π³Π°Π½ΠΎΠ² – 2 (1–5).Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹.β€‰ΠŸΠΎΠ»Π½Ρ‹Π΅ рСгрСссии (ПР) ΠΎΡ‚ΠΌΠ΅Ρ‡Π΅Π½Ρ‹ Ρƒ 3 (2 %) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…, частичная рСгрСссия (Π§Π ) – Ρƒ 24 (15,7 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², стабилизация заболСвания – Ρƒ 89 (58,2 %). ΠŸΡ€ΠΎΠ³Ρ€Π΅ΡΡΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Π±ΠΎΠ»Π΅Π·Π½ΠΈ зафиксировано Ρƒ 37 (24,1 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². МСдиана выТиваСмости Π±Π΅Π· прогрСссирования (Π’Π‘ΠŸ) Π½Π° Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ эрибулином ΠΌΠ ΠœΠ– составила 4,64 мСс. (95 % Π”Π˜ 2,97–6,87). Бтабилизация заболСвания Π±ΠΎΠ»Π΅Π΅ 6 мСс. зарСгистрирована Ρƒ 28 (18,3 %) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…. НаиболСС Π·Π½Π°Ρ‡ΠΈΠΌΠΎΠΉ Ρ‚ΠΎΠΊΡΠΈΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ стали нСйтропСния ΠΈ полинСйропатия (21 (10,4 %) ΠΈ 7 (3,5 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² соотвСтствСнно). РСдукция Π΄ΠΎΠ·Ρ‹ эрибулина Π² связи с Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ΠΌ Π½Π΅ΠΉΡ‚Ρ€ΠΎΠΏΠ΅Π½ΠΈΠΈ ΠΏΠΎΡ‚Ρ€Π΅Π±ΠΎΠ²Π°Π»Π°ΡΡŒ 26 (12,9 %) Π±ΠΎΠ»ΡŒΠ½Ρ‹ΠΌ.Частота ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π²Π΅Ρ‚Π° (ЧОО) ΠΏΡ€ΠΈ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ эрибулином зависСла ΠΎΡ‚ Π»ΠΈΠ½ΠΈΠΈ Ρ…ΠΈΠΌΠΈΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠΈ: Π² 1–3 линиях ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ лСчСния Π±Ρ‹Π»Π° Π²Ρ‹ΡˆΠ΅ – ЧОО составила 21,6 % ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с 4-ΠΉ ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΌΠΈ линиями с ЧОО Π² 12,3 %. ΠŸΡ€ΠΈ HER2-ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌ ΠΌΠ ΠœΠ– эрибулин продСмонстрировал Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π»ΡƒΡ‡ΡˆΠΈΠ΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΏΠΎ Π’Π‘ΠŸ Π² ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ†ΠΈΠΈ с трастузумабом ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΌΠΎΠ½ΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΠ΅ΠΉ (ΠΌΠ΅Π΄ΠΈΠ°Π½Π° 4,64 мСс. (95 % Π”Π˜ 2,94–6,6) ΠΈ 2,58 мСс. (95 % Π”Π˜ 2,15–3,6) соотвСтствСнно).Π’Ρ‹Π²ΠΎΠ΄Ρ‹.β€‰ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ· ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ эрибулин, обладая прСдсказуСмым ΠΈ управляСмым ΠΏΡ€ΠΎΡ„ΠΈΠ»Π΅ΠΌ бСзопасности, являСтся эффСктивным ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠΌ для Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ ΠΏΠΎΠ΄Ρ‚ΠΈΠΏΠ°ΠΌΠΈ ΠΌΠ ΠœΠ– Π² условиях Ρ€Π΅Π°Π»ΡŒΠ½ΠΎΠΉ клиничСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠΈ

    Combined immunization with attenuated live influenza vaccine and chimeric pneumococcal recombinant protein improves the outcome of virus-bacterial infection in mice.

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    Influenza and its bacterial complications are a leading cause of morbidity and mortality worldwide. The effect of combined immunization with live influenza vaccine and recombinant chimeric pneumococcal protein in dual infection caused by influenza H1N1 and S. pneumoniae (serotype 3) has been studied. The combined vaccine consisted of the strain A/California/2009/38 (H1N1) pdm and chimeric recombinant protein PSPF composed of immunodominant fragments of the surface virulence factors of S. pneumoniae-PsaA, PspA, and Shr1875-associated with modified salmonella flagellin. Vaccinated mice were infected with the influenza virus 24 hours before or 24 hours after the onset of pneumococcal infection. The protective effect of combined vaccination was shown on both models of viral-bacterial infection

    Development of experimental GBS vaccine for mucosal immunization

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    <div><p><i>Streptococcus agalactiae</i>, or group B streptococcus (GBS), is an important pathogen as it is the leading cause of neonatal deaths due to sepsis, meningitis or bacterial pneumonia. Although the development of an effective and safe GBS vaccine is on the agenda of many research labs, there is no GBS vaccine on the market yet. In the present study we attempted to engineer a live vaccine strain based on Bac, a surface protein of GBS, incorporated into a surface fimbrial protein of probiotic Enterococcus. The resulting strain induced specific systemic and local immune responses in mice and provided protection against GBS when administered via the intranasal, oral or intravaginal immunization routes.</p></div
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