17 research outputs found

    Π‘Π»ΡƒΡ‡Π°ΠΉ ΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ IgG4-связанного заболСвания Π»Π΅Π³ΠΊΠΈΡ… Ρƒ подростка

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    IgG4-related disease (IgG4-RD) is a rare immune-mediated fibroinflammatory disease that is characterized by the occurrence of nodules in one or more organs and proceeds in most patients with the elevated levels of IgG4 in serum and/or in the tissues of the affected organs. The majority of patients are elderly men, and the disease in most cases has a slowly progressing systemic course. The cases of isolated IgG4-related injury to the viscera, which are much less common than the systemic type of the disease, are a very difficult differential diagnosis, and biopsy of these organs is associated with technical difficulties and poses a threat to the patient's health. The paper describes just such a case. It is interesting from several points of view: firstly, a rare site (solitary pulmonary nodular lesion); secondly, clinical and laboratory features (childhood onset, no immunological abnormalities – both higher serum IgG4 levels and lower complement components).Clinicians should remember that IgG4-RD does not always have a systemic course and characteristic serological markers. In these cases, histological verification of the diagnosis is of particular importance. If the histological pattern of a fibroinflammatory pseudotumor is identified, especially in the presence of multiple nodules, IgG4-RD should always be included in the differential diagnosis.Β IgG4-связанноС Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ (IgG4-Π‘Π—) – Ρ€Π΅Π΄ΠΊΠΎΠ΅ иммуноопосрСдованноС Ρ„ΠΈΠ±Ρ€ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΡƒΡŽΡ‰Π΅Π΅ΡΡ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΠ΅ΠΌ ΡƒΠ·Π»ΠΎΠ²Ρ‹Ρ… ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ Π² ΠΎΠ΄Π½ΠΎΠΌ ΠΈΠ»ΠΈ Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… ΠΎΡ€Π³Π°Π½Π°Ρ… ΠΈ ΠΏΡ€ΠΎΡ‚Π΅ΠΊΠ°ΡŽΡ‰Π΅Π΅ Ρƒ Π±ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²Π° ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ΠΌ уровня IgG4 Π² сывороткС ΠΊΡ€ΠΎΠ²ΠΈ ΠΈ/ΠΈΠ»ΠΈ Π² тканях ΠΏΠΎΡ€Π°ΠΆΠ΅Π½Π½Ρ‹Ρ… ΠΎΡ€Π³Π°Π½ΠΎΠ². Основная Ρ‡Π°ΡΡ‚ΡŒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² – ΠΏΠΎΠΆΠΈΠ»Ρ‹Π΅ ΠΌΡƒΠΆΡ‡ΠΈΠ½Ρ‹, Π° Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ Π² Π±ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²Π΅ случаСв ΠΈΠΌΠ΅Π΅Ρ‚ ΠΌΠ΅Π΄Π»Π΅Π½Π½ΠΎ ΠΏΡ€ΠΎΠ³Ρ€Π΅ΡΡΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ систСмноС Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅. ΠžΡ‡Π΅Π½ΡŒ слоТны для Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ диагностики случаи ΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ IgG4-связанного пораТСния Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½ΠΈΡ… ΠΎΡ€Π³Π°Π½ΠΎΠ², ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡ‚ΡΡ Π³ΠΎΡ€Π°Π·Π΄ΠΎ Ρ€Π΅ΠΆΠ΅ систСмного Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π° заболСвания, Π° ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ биопсии Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΡ€Π³Π°Π½ΠΎΠ² сопряТСно с тСхничСскими трудностями ΠΈ прСдставляСт ΡƒΠ³Ρ€ΠΎΠ·Ρƒ Π·Π΄ΠΎΡ€ΠΎΠ²ΡŒΡŽ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°. Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ приводится описаниС ΠΈΠΌΠ΅Π½Π½ΠΎ Ρ‚Π°ΠΊΠΎΠ³ΠΎ случая. Он интСрСсСн с Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… Ρ‚ΠΎΡ‡Π΅ΠΊ зрСния: Π²ΠΎ-ΠΏΠ΅Ρ€Π²Ρ‹Ρ…, Ρ€Π΅Π΄ΠΊΠΎΠΉ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ – ΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ΅ ΡƒΠ·Π»ΠΎΠ²ΠΎΠ΅ ΠΏΠΎΡ€Π°ΠΆΠ΅Π½ΠΈΠ΅ Π»Π΅Π³ΠΊΠΈΡ…; Π²ΠΎ-Π²Ρ‚ΠΎΡ€Ρ‹Ρ…, ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹ΠΌΠΈ особСнностями (Π΄Π΅Π±ΡŽΡ‚ Π² дСтском возрастС, отсутствиС ΠΊΠ°ΠΊΠΈΡ…-Π»ΠΈΠ±ΠΎ иммунологичСских ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠΉ – ΠΊΠ°ΠΊ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ уровня IgG4 сыворотки, Ρ‚Π°ΠΊ ΠΈ сниТСния содСрТания ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΌΠ΅Π½Ρ‚Π°).ΠšΠ»ΠΈΠ½ΠΈΡ†ΠΈΡΡ‚Π°ΠΌ слСдуСт ΠΏΠΎΠΌΠ½ΠΈΡ‚ΡŒ ΠΎ Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ IgG4-Π‘Π— Π½Π΅ всСгда ΠΈΠΌΠ΅Π΅Ρ‚ систСмноС Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ ΠΈ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹Π΅ сСрологичСскиС ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Ρ‹. Π’ этих случаях гистологичСская вСрификация Π΄ΠΈΠ°Π³Π½ΠΎΠ·Π° ΠΈΠΌΠ΅Π΅Ρ‚ особоС Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅. ΠŸΡ€ΠΈ выявлСнии гистологичСской ΠΊΠ°Ρ€Ρ‚ΠΈΠ½Ρ‹ Ρ„ΠΈΠ±Ρ€ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ «псСвдоопухоли», особСнно ΠΏΡ€ΠΈ Π½Π°Π»ΠΈΡ‡ΠΈΠΈ мноТСствСнных ΡƒΠ·Π»ΠΎΠ²Ρ‹Ρ… ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ, Π² Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΡƒΡŽ диагностику всСгда слСдуСт Π²ΠΊΠ»ΡŽΡ‡Π°Ρ‚ΡŒ IgG4-Π‘Π—.

    Врансформированный Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ Π΄ΠΈΡ„Ρ„ΡƒΠ·Π½ΠΎΠΉ Π’-ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ ΠΊΡ€ΡƒΠΏΠ½ΠΎΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ Π»ΠΈΠΌΡ„ΠΎΠΌΡ‹ ΠΆΠ΅Π»ΡƒΠ΄ΠΊΠ° Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠΈ с сочСтаниСм Π±ΠΎΠ»Π΅Π·Π½ΠΈ Π¨Π΅Π³Ρ€Π΅Π½Π° ΠΈ систСмной склСродСрмии (описаниС случая ΠΈ ΠΎΠ±Π·ΠΎΡ€ Π»ΠΈΡ‚Π΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹)

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    This article describes a case of a transformed diffuse large B-cell lymphoma of the stomach in a patient with Sjogren’s disease (SjD) and systemic sclerosis (SSc), as well as a brief review of the literature on lymphoproliferative diseases in SjD and SSc.ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½Ρ‹ описаниС случая трансформированного Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π° Π΄ΠΈΡ„Ρ„ΡƒΠ·Π½ΠΎΠΉ Π’-ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ ΠΊΡ€ΡƒΠΏΠ½ΠΎΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ Π»ΠΈΠΌΡ„ΠΎΠΌΡ‹ ΠΆΠ΅Π»ΡƒΠ΄ΠΊΠ° Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠΈ с болСзнью Π¨Π΅Π³Ρ€Π΅Π½Π° (Π‘Π¨) ΠΈ Π»ΠΈΠΌΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ систСмной склСродСрмиСй (Π‘Π‘Π”), Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΊΡ€Π°Ρ‚ΠΊΠΈΠΉ ΠΎΠ±Π·ΠΎΡ€ Π»ΠΈΡ‚Π΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹, посвящСнной Π»ΠΈΠΌΡ„ΠΎΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹ΠΌ заболСваниям ΠΏΡ€ΠΈ Π‘Π¨ ΠΈ Π‘Π‘Π”. ΠžΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ связи ΠΌΠ΅ΠΆΠ΄Ρƒ ΡƒΠΊΠ°Π·Π°Π½Π½Ρ‹ΠΌΠΈ состояниями

    Diagnosis of IgG4 - related ophthalmic disease in a group of patients with various lesions of the eye and orbits

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    Purpose of the study. To provide demographic, clinical, laboratory, ultrasound, radiological, morphological/ immunomorphological phenotype of IgG4-related ophthalmic diseases, which allowsmaking a differential diagnosis with granulomatous, autoimmune, inflammatory, endocrine and hematologic diseases affecting the eye and orbits. Materials and methods. From 2004 to 2016 108 (78.2%) of the 138 patients were diagnosed with non-tumoral lesions of eye and orbits. In 48 patients (35%) at admission and 5 patients in the follow were diagnosed IgG4-related ophthalmic disease. In the analysis of 82 (f-44, m-38) patients with IgG4-related disease, localization of lesions in orbit observed in 53 (f-36, m-17) and it was the most frequent involvement in patients with IgG4-related disease (64.5%). Only 7 patients had isolated IgG4-related ophthalmic disease, whereas 46 patients (87%) had involvement of 2-7 locations, as a manifestation of IgG4-related systemic disease.During the examination, the average age of patients with IgG4-related ophthalmic disease was 47.5 years (19-73 years). Median time to diagnosis was 52.8 months before 2004 and 36 months 2004-2016. Results. We noted the predominance of females in the ratio 2: 1 inthe group of patients with IgG4-related ophthalmic disease. Edema of the eyelids, nasal congestion (55-60%), tumor-like formations of the upper eyelids and increased lacrimation prevailed at the onset of the disease, whereas such functional impairment like limited mobility and pain in eyeballs, exophthalmos, ptosis and diplopia appeared later at 15-38% with a loss visual acuity in one case. Bilateral lesion (86%), mainly affecting the lacrimal glands (93.5%), infiltration of the extraocular muscles (83.5%) and retrobulbar tissue with a thickening of the optic nerve in one third of patients were the main localizations IgG4-related ophthalmic disease. Clinical symptoms were accompanied by the appearance of moderate inflammatory activity (38%), increased levels IgG (44%), IgG4(88%) and IgE (61%). Indicators of autoimmune disorders observed in 6-22% of patients, most often in patients with simultaneous involvement of the salivary glands. Significant lymphoplasmacytic infiltration (94%) with a ratio of plasma cells (IgG4/IgG) secreting IgG4> 40% (90%) with fibrosis formation (94%) and follicle formation (71%) with a moderate amount of eosinophils (34%) were the major morphological / immunomorphological manifestations of IgG4-related ophthalmic disease. Signs of vasculitis and obliterative phlebitis were found in a small amount of patients. Conclusion. Determination of elevated levels of IgG-4 / IgE in patients with edema, pseudotumor of the eyelid, sinusitis and increase of the palpebral lobe of the lacrimal gland suggests the presence of IgG4-related ophthalmic disease. Minimally invasive incisional biopsy of lacrimal glands and salivary glands followed by morphological / immunomorphological research is needed for the correct diagnosis. Diagnostic orbitotomy in ophthalmic hospitals in such cases is inexpedient, since it leads to the development of dry eye. Massive lymphoplasmacytic infiltration with IgG4 / IgG ratio more than 40%, advanced fibrosis in biopsiesof the orbits tissue or salivary glands when combined lesions are required for the making the diagnosis of IgG4-related ophthalmic disease

    IgG4-RELATED DISEASE. CLINICAL NOTES

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    IgG4-related diseases are a new nosological entity that encompasses a few previously known diseases. IgG4-relatedΒ systemic disease is diagnosed if two or more affected organs are detected. This group of diseases has two similar signs:Β serological (elevated serum IgG4 subclass concentrations) and histological (organ and tissue infiltration from plasmo-cytes secreting IgG4, and eosinophils, and the development of fibrosclerosis and phlebitis obliterans).Β The paper describes two cases. In one case, a multisystemic disease was observed virtually at its onset whereas in theΒ other this lesion was diagnosed several years after the natural course of the disease

    ΠŸΡ€ΠΎΠ³Π½ΠΎΡΡ‚ΠΈΡ‡Π΅ΡΠΊΠΎΠ΅ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ PD-L1-статуса ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСтастатичСским Ρ€Π°ΠΊΠΎΠΌ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

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    Background.New potential biomarker for patients with metastatic hormone-naive prostate cancer (PCa) might be detection of programmed death ligand 1 (PD-L1) expression in tumor which is associated with worsened results of treatment and decreased survival in patients with pancreatic cancer, lung cancer and other malignant tumors.Objective: to evaluate the prognostic value of positive tumor PD-L1 status on time to castration resistance (CRPCa) in patients with metaΒ­static PCa receiving hormonal androgen deprivation therapy in first-line systemic treatment.Materials and methods.A total of 35patients with metastatic hormone-naive PCa receiving androgen deprivation therapy with luteinizing hormone-releasing hormone analogue and follow-up at N.N. Blokhin National Medical Research Center of Oncology were recruited in our prospective study. Tumor features of all patients were evaluated for PD-L1 expression on tumor cells by immunohistochemical studies of paraffin block sections obtained under the visual control of the pathologist using a set of monoclonal anti-PD-L1 antibody (28-8) (ab 205921) and Ventana BenchMark GXSlide staining system. Tumor tissue was obtained before starting androgen deprivation therapy. The expression level of PD-L1 >1 % in tumor cells was taken for the positive tumor PD-L1(+) status.Results. Median follow-up was 32.8 months. Positive tumor PD-L1(+) status was identified in 10 (28.6 %) cases. Median time to CRPCa was significantly lower in patients with PD-L1(+) status, than in negative PD-L1(β€”) status (21.44 vs. 49.12, p = 0.006 log rank test). MultiΒ­variate Cox regression analysis confirmed independence prognostic value of PD-L1(+) associated with decreased time to CRPCa (hazard ration 5.95, 95 % confidence interval 1.97β€”17.99; p = 0.002), including in subgroup of patients with low-volume metastatic disease (hazard ration 7.33, 95 % confidence interval 1.81β€”29.60; p = 0.005).Discussion. Interaction of PD-1 receptors and its ligands PD-L1/PD-L2 is the key mechanism causing tumor immune escape and progression of the cancer. There are discussed certain ways of inducing PD-L1 expression and its prognostic value on aggressive nonmetastatic PCa. High frequency of positive PD-L1 status was revealed in rare histological subtypes of PCa associated with unfavorable prognosis and visceral metastasis.Conclusion.The results of our study demonstrated the positive tumor PD-L1 status as an independent unfavorable prognostic factorfor patients with metastatic hormone-naive PCa associated with decreased time to castration resistance, including in patients with low volume metastatic disease.Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅. Одним ΠΈΠ· ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… Π±ΠΈΠΎΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² для Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСтастатичСским Π³ΠΎΡ€ΠΌΠΎΠ½ΠΎΡ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Ρ€Π°ΠΊΠΎΠΌ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ (Π ΠŸΠ–) ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ экспрСссии Π»ΠΈΠ³Π°Π½Π΄Π° Π±Π΅Π»ΠΊΠ° ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠΈΡ€ΡƒΠ΅ΠΌΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠΉ Π³ΠΈΠ±Π΅Π»ΠΈ (PD-L1) Π² ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ, ассо­циированной с нСблагоприятными Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌΠΈ лСчСния ΠΈ сниТСниСм выТиваСмости Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Ρ€Π°ΠΊΠΎΠΌ ΠΏΠΎΠ΄ΠΆΠ΅Π»ΡƒΠ΄ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, Π»Π΅Π³ΠΊΠΎΠ³ΠΎ ΠΈ Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ злокачСствСнными новообразованиями.ЦСль исслСдования β€” ΠΎΡ†Π΅Π½ΠΊΠ° прогностичСской значимости ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ статуса PD-L1(+) ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ Π½Π° врСмя Π΄ΠΎ развития кастрационной рСзистСнтности (ΠšΠ Π ΠŸΠ–) Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСтастатичСским Π ΠŸΠ–, ΠΏΠΎΠ»ΡƒΡ‡Π°ΡŽΡ‰ΠΈΡ… Π³ΠΎΡ€ΠΌΠΎΠ½Π°Π»ΡŒΠ½ΡƒΡŽ Π°Π½Π΄Ρ€ΠΎΠ³Π΅Π½Π΄Π΅ΠΏΡ€ΠΈΠ²Π°Ρ†ΠΈΠΎΠ½Π½ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠΈΡŽ Π² 1-ΠΉ Π»ΠΈΠ½ΠΈΠΈ систСмного ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ лСчСния.ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. Π’ проспСктивный Π°Π½Π°Π»ΠΈΠ· Π±Ρ‹Π»ΠΈ Π²ΠΊΠ»ΡŽΡ‡Π΅Π½Ρ‹ Π΄Π°Π½Π½Ρ‹Π΅ 35ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с мСтастатичСским Π³ΠΎΡ€ΠΌΠΎΠ½ΠΎΡ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Π ΠŸΠ–, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»Π°ΡΡŒ андрогСндСпривационная тСрапия Π°Π½Π°Π»ΠΎΠ³Π°ΠΌΠΈ Π»ΡŽΡ‚Π΅ΠΈΠ½ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ Π³ΠΎΡ€ΠΌΠΎΠ½Π° Ρ€ΠΈΠ»ΠΈΠ·ΠΈΠ½Π³-Π³ΠΎΡ€ΠΌΠΎΠ½Π° ΠΈ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π½Π°Ρ…ΠΎΠ΄ΠΈΠ»ΠΈΡΡŒ ΠΏΠΎΠ΄ наблюдСниСм Π² НМИЦонкологии ΠΈΠΌ. Н.Н. Π‘Π»ΠΎΡ…ΠΈΠ½Π°. ВсСм ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌ Π±Ρ‹Π»ΠΎ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ экспрСссии PD-L1 Π² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° иммуногистохимичСского исслСдования срСзов ΠΏΠ°Ρ€Π°Ρ„ΠΈΠ½ΠΎΠ²Ρ‹Ρ… Π±Π»ΠΎΠΊΠΎΠ², ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… ΠΏΠΎΠ΄ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π΅ΠΌ ΠΏΠ°Ρ‚ΠΎΠΌΠΎΡ€Ρ„ΠΎΠ»ΠΎΠ³Π° с использованиСм моноклонального Π°Π½Ρ‚ΠΈΡ‚Π΅Π»Π° Anti-PD-L1 antibody (28-8) (ab 205921) Π½Π° иммуностСйнСрС Ventana BenchMark GX. ΠžΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹ΠΉ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π» Π±Ρ‹Π» ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ Π΄ΠΎ Π½Π°Ρ‡Π°Π»Π° Π°Π½Π΄Ρ€ΠΎΠ³Π΅Π½Π΄Π΅ΠΏΡ€ΠΈΠ²Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². Π—Π° статус PD-L1(+) ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π»ΠΈ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ экспрСссии PD-L1 >1 % Π² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ….Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. МСдиана наблюдСния составила 32,8 мСс. Бтатус PD-L1(+) ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π΅Π½ Π² 10 (28,6 %) случаях. МСдиана Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ Π΄ΠΎ ΠšΠ Π ΠŸΠ– Π±Ρ‹Π»Π° достовСрно Π½ΠΈΠΆΠ΅ Π² Π³Ρ€ΡƒΠΏΠΏΠ΅ PD-L1(+), Ρ‡Π΅ΠΌ Π² Π³Ρ€ΡƒΠΏΠΏΠ΅ PD-L1(β€”) (21,44 мСс ΠΏΡ€ΠΎΡ‚ΠΈΠ² 49,12 мСс; Ρ€ = 0,006). ΠœΠ½ΠΎΠ³ΠΎΡ„Π°ΠΊΡ‚ΠΎΡ€Π½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ· Кокса ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€Π΄ΠΈΠ» PD-L1(+) ΠΊΠ°ΠΊ нСзависимый Ρ„Π°ΠΊΡ‚ΠΎΡ€ ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π°, ассоциированный со сниТСниСм Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ Π΄ΠΎ ΠšΠ Π ΠŸΠ– (ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠ΅ рисков 5,95, 95 % Π΄ΠΎΠ²Π΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π» 1,97β€”17,99; Ρ€ = 0,002), Π² Ρ‚ΠΎΠΌ числС Π² ΠΏΠΎΠ΄Π³Ρ€ΡƒΠΏΠΏΠ΅ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π½Π΅Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ€Π°ΡΠΏΡ€ΠΎΡΡ‚Ρ€Π°Π½Π΅Π½Π½ΠΎΡΡ‚ΡŒΡŽ мСтастатичСского пораТСния (ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠ΅ рисков 7,33, 95 % Π΄ΠΎΠ²Π΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π» 1,81β€”29,60; Ρ€ = 0,005).ΠžΠ±ΡΡƒΠΆΠ΄Π΅Π½ΠΈΠ΅. ВзаимодСйствиС Ρ€Π΅Ρ†Π΅ΠΏΡ‚ΠΎΡ€Π° PD-1 с Π΅Π³ΠΎ Π»ΠΈΠ³Π°Π½Π΄Π°ΠΌΠΈ PD-L1/PD-L2 являСтся ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹ΠΌ ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΠΎΠΌ Π² Β«ΡƒΡΠΊΠΎΠ»ΡŒΠ·Π°Π½ΠΈΠΈΒ» ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΎΡ‚ иммунологичСского ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ Π½Π°Π΄Π·ΠΎΡ€Π°. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Π΅ ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΡ‹ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΈ экспрСссии PD-L1, Π° Ρ‚Π°ΠΊΠΆΠ΅ Π΅Π΅ связь с агрСссивным Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠΎΠΌ ΠΏΡ€ΠΈ нСмСтастатичСском Π ΠŸΠ–. Высокая частота ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ статуса PD-L1 ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Π° ΠΏΡ€ΠΈ Ρ€Π΅Π΄ΠΊΠΈΡ… нСблагоприятных гистологичСских Ρ„ΠΎΡ€ΠΌΠ°Ρ… Π ΠŸΠ– ΠΈ Π²ΠΈΡΡ†Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… мСтастазах.Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдования ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, Ρ‡Ρ‚ΠΎ ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ статус PD-L1 ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ являСтся нСзависимым Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠΌ нСблагоприятного ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π° для Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСтастатичСским Π³ΠΎΡ€ΠΌΠΎΠ½ΠΎΡ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Π ΠŸΠ–, ассоциированным со сниТСниСм Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ Π΄ΠΎ развития ΠšΠ Π ΠŸΠ–, Π² Ρ‚ΠΎΠΌ числС ΠΏΡ€ΠΈ минимальной распространСнности мСтастатичСского пораТСния

    ΠŸΡ€ΠΎΠ³Π½ΠΎΡΡ‚ΠΈΡ‡Π΅ΡΠΊΠ°Ρ Π·Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ экспрСссии PD-L1 ΠΈ ΠΎΡ†Π΅Π½ΠΊΠ° статуса микросатСллитной Π½Π΅ΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Π·Π°Π±Ρ€ΡŽΡˆΠΈΠ½Π½Ρ‹ΠΌΠΈ Π½Π΅ΠΎΡ€Π³Π°Π½Π½Ρ‹ΠΌΠΈ лСйомиосаркомами

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    Background. Leiomyosarcoma is one of the most common types of soft tissue sarcomas. Radical surgical resection with subsequent adjuvant chemotherapy remain the most effective treatment approach. Immunotherapy based on inhibition of PD-L1 (programmed death ligand 1) or its receptor PD1 (programmed death 1) is considered a promising treatment option. Level of PD-L1 expression in tumor cells and presence of microsatellite instability (МSI) could be considered prognostic and predictive markers of disease progression and effectiveness of immunotherapy.The study objective is to determine PD-L1 expression level and МSI status in patients with retroperitoneal leiomyosarcomas and evaluate their effect on overall and recurrence-free survival.Materials and methods. The study included 57 patients with retroperitoneal leiomyosarcomas who underwent surgical or combination treatment. Analysis of clinical and morphological characteristics was performed; results of surgical treatment were researched. Evaluation of PD-L1 expression and MSI status was performed using immunohistochemical and molecular genetic analysis.Results. PD-L1 expression and MSI status were evaluated in 41 patients of 57. In 10 (24 %) of 41 cases, positive PD-L1 expression was observed (expression level 3–50 %). In 1 (2.4 %) patient, the primary tumor and metastatic lesion had low MSI level (MSI-low, MSI-L). Median follow-up was 31 months. In patients with positive PD-L1 expression, higher Ki-67 proliferative index was observed compared to patients with PD-L1 negative tumors (58.8 and 47.8 % respectively; Ρ€ = 0.02), as well as significantly lower median overall survival for grade II tumors (30 and 105 months; p = 0.043). In grade III leiomyosarcomas, a trend towards lower median overall survival in patients with PD-L1‑negative tumors (31.0 months) compared to patients with PD-L1 expression (61.2 months) (Ρ€ = 0.11) was observed.Conclusion. Among patients with retroperitoneal leiomyosarcomas, positive expression of PD-L1 was observed in 24 % (10 / 41) of cases and MSI-low status was found in 2.4 % (1 / 41) of cases. In patients with grade 2 tumors, positive PD-L1 expression is associated with significantly lower overall survival. PD-L1 expression in patients with retroperitoneal leiomyosarcomas could be considered a prognostic marker and a potential therapeutic target.Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅. ЛСйомиосаркома являСтся ΠΎΠ΄Π½ΠΎΠΉ ΠΈΠ· самых распространСнных злокачСствСнных ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ мягких Ρ‚ΠΊΠ°Π½Π΅ΠΉ. РадикальноС хирургичСскоС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ с ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰Π΅ΠΉ Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠ΅ΠΉ остаСтся Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ эффСктивным ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ. Π˜ΠΌΠΌΡƒΠ½ΠΎΡ‚Π΅Ρ€Π°ΠΏΠΈΡ – пСрспСктивный ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ лСчСния, основанного Π½Π° использовании Π°Π½Ρ‚ΠΈΡ‚Π΅Π», Π±Π»ΠΎΠΊΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… Π»ΠΈΠ³Π°Π½Π΄ PD-L1 (programmed death ligand 1) ΠΈΠ»ΠΈ Ρ€Π΅Ρ†Π΅ΠΏΡ‚ΠΎΡ€ PD-1 (programmed death 1). Π£Ρ€ΠΎΠ²Π΅Π½ΡŒ экспрСссии PD-L1 Π² ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΈ Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ микросатСллитной Π½Π΅ΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ (МSI) ΠΌΠΎΠ³ΡƒΡ‚ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Ρ‚ΡŒΡΡ ΠΊΠ°ΠΊ прогностичСский ΠΈ ΠΏΡ€Π΅Π΄ΠΈΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΉ ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ тСчСния заболСвания ΠΈ эффСктивности иммунотСрапСвтичСского лСчСния.ЦСль исслСдования – ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ экспрСссии PD-L1 ΠΈ статус МSI Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Π·Π°Π±Ρ€ΡŽΡˆΠΈΠ½Π½Ρ‹ΠΌΠΈ Π½Π΅ΠΎΡ€Π³Π°Π½Π½Ρ‹ΠΌΠΈ лСйомиосаркомами ΠΈ ΠΎΡ†Π΅Π½ΠΈΡ‚ΡŒ ΠΈΡ… влияниС Π½Π° ΠΎΠ±Ρ‰ΡƒΡŽ ΠΈ Π±Π΅Π·Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π½ΡƒΡŽ Π²Ρ‹ΠΆΠΈΠ²Π°Π΅ΠΌΠΎΡΡ‚ΡŒ.ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. Π’ исслСдованиС Π±Ρ‹Π»ΠΈ Π²ΠΊΠ»ΡŽΡ‡Π΅Π½Ρ‹ 57 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Π·Π°Π±Ρ€ΡŽΡˆΠΈΠ½Π½Ρ‹ΠΌΠΈ Π½Π΅ΠΎΡ€Π³Π°Π½Π½Ρ‹ΠΌΠΈ лСйомиосаркомами, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌ Π²Ρ‹ΠΏΠΎΠ»Π½ΡΠ»ΠΎΡΡŒ хирургичСскоС ΠΈΠ»ΠΈ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ΅ Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅. ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· клиничСских ΠΈ морфологичСских ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ, ΠΈΠ·ΡƒΡ‡Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ хирургичСского лСчСния. ΠžΡ†Π΅Π½ΠΊΠ° экспрСссии PD-L1 ΠΈ МSI ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»Π°ΡΡŒ с использованиСм иммуногистохимичСского ΠΈ молСкулярно-гСнСтичСского Π°Π½Π°Π»ΠΈΠ·Π°.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π£ 41 ΠΈΠ· 57 ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π±Ρ‹Π»Π° ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΎΡ†Π΅Π½ΠΊΠ° экспрСссии PD-L1. Π’ 10 (24 %) ΠΈΠ· 41 случая выявлСна ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ экспрСссия (ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ экспрСссии составил 3–50 %). Π£ 1 (2,4 %) ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π° пСрвичная ΠΎΠΏΡƒΡ…ΠΎΠ»ΡŒ ΠΈ мСтастатичСский ΠΎΡ‡Π°Π³ ΠΈΠΌΠ΅Π»ΠΈ Π½ΠΈΠ·ΠΊΠΈΠΉ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ МSI (MSI-low, MSI-L). МСдиана наблюдСния Π·Π° Π±ΠΎΠ»ΡŒΠ½Ρ‹ΠΌΠΈ составила 31 мСс. Π£ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ экспрСссиСй PD-L1 ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с Π±ΠΎΠ»ΡŒΠ½Ρ‹ΠΌΠΈ с PD-L1β€‘ΠΎΡ‚Ρ€ΠΈΡ†Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌΠΈ опухолями выявлСн Π±ΠΎΠ»Π΅Π΅ высокий индСкс ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ активности Ki-67 (58,8 ΠΈ 47,8 % соотвСтствСнно; Ρ€ = 0,02), Π° Ρ‚Π°ΠΊΠΆΠ΅ достовСрно низкая ΠΌΠ΅Π΄ΠΈΠ°Π½Π° ΠΎΠ±Ρ‰Π΅ΠΉ выТиваСмости ΠΏΡ€ΠΈ опухолях II стСпСни злокачСствСнности (30 ΠΈ 105 мСс; p = 0,043). ΠŸΡ€ΠΈ лСйомиосаркомах III стСпСни злокачСствСнности ΠΎΡ‚ΠΌΠ΅Ρ‡Π΅Π½ Ρ‚Ρ€Π΅Π½Π΄ ΠΊ сниТСнию ΠΌΠ΅Π΄ΠΈΠ°Π½Ρ‹ ΠΎΠ±Ρ‰Π΅ΠΉ выТиваСмости Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с PD-L1β€‘ΠΎΡ‚Ρ€ΠΈΡ†Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌΠΈ опухолями (31,0 мСс) ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ с Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ΠΌ экспрСссии PD-L1 (61,2 мСс) (Ρ€ = 0,11).Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. Частота экспрСссии PD-L1 срСди Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π·Π°Π±Ρ€ΡŽΡˆΠΈΠ½Π½Ρ‹ΠΌΠΈ лСйомиосаркомами Π² нашСм наблюдСнии составила 24 % (10 / 41), статус MSI-L ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ Π² 2,4 % (1 / 41) случаСв. Π£ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с ΠΎΠΏΡƒΡ…ΠΎΠ»ΡŒΡŽ II стСпСни злокачСствСнности Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ экспрСссии PD-L1 связано с достовСрным сниТСниСм ΠΎΠ±Ρ‰Π΅ΠΉ выТиваСмости. PD-L1 Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π·Π°Π±Ρ€ΡŽΡˆΠΈΠ½Π½Ρ‹ΠΌΠΈ лСйомиосаркомами слСдуСт Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°Ρ‚ΡŒ ΠΊΠ°ΠΊ прогностичСский ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ ΠΈ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠ΅Π²Ρ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ мишСнь

    Clinical and immunological variants of ANCA-associated systemic vasculitis: a look at the phenomenon of IgG4 overproduction. Literature review and own observations

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    Systemic vasculitis (SV) associated with anti-neutrophilic cytoplasmic antibodies is a multifactorial process characterized by the variability of the epitope specificity of anti-neutrophilic cytoplasmic antibodies and the diversity of clinical phenotypes of the disease. In recent years, there has been an increasing interest in the combination of AAV and the phenomenon of IgG4 hyperproduction, which varies widely within AAV, from anti-neutrophilic cytoplasmic antibodies products of IgG4 subclass of undetermined significance, the presence of IgG4 positive plasma cells in the foci of immunoinflammatory lesions in patients with a definite diagnosis of AAV, to the typical clinical manifestations of an IgG4-related disease (IgG4-RD). We introduce own clinical case and analyze the combined data of the literature, which included 35 cases of a combination of AAV and IgG4-related pathology, indicating existing differences in the clinical manifestations of classical IgG4-RD and when combined with AAV. The currently accumulated data allows us to discuss the allocation of a specific clinical and immunological variant of AAV with IgG4 hyperproduction, characterized by a combination of clinical manifestations of AAV and clinical and / or histological signs of IgG4-related pathology. It is important to emphasize that the allocation of phenotypes of AAV in the future may be important for the personalized choice of treatment tactics for patients

    A case of isolated IgG4-related lung disease in a teenager

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    IgG4-related disease (IgG4-RD) is a rare immune-mediated fibroinflammatory disease that is characterized by the occurrence of nodules in one or more organs and proceeds in most patients with the elevated levels of IgG4 in serum and/or in the tissues of the affected organs. The majority of patients are elderly men, and the disease in most cases has a slowly progressing systemic course. The cases of isolated IgG4-related injury to the viscera, which are much less common than the systemic type of the disease, are a very difficult differential diagnosis, and biopsy of these organs is associated with technical difficulties and poses a threat to the patient's health. The paper describes just such a case. It is interesting from several points of view: firstly, a rare site (solitary pulmonary nodular lesion); secondly, clinical and laboratory features (childhood onset, no immunological abnormalities – both higher serum IgG4 levels and lower complement components).Clinicians should remember that IgG4-RD does not always have a systemic course and characteristic serological markers. In these cases, histological verification of the diagnosis is of particular importance. If the histological pattern of a fibroinflammatory pseudotumor is identified, especially in the presence of multiple nodules, IgG4-RD should always be included in the differential diagnosis
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