3 research outputs found

    THE THYMIDINE KINASE-1(TK-1) AS A POTENTIAL TUMOR MARKER: SERUM LEVELS IN SERUM OF PATIENTS WITH SOLID AND SYSTEM MALIGNANCE NEOPLASMS

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    The review summarizes the results of studies of levels and/or activity in the blood serum of a metabolic marker thymidine kinase-1 (TK-1) of proliferating cells in patients with lymphoproliferative diseases (LPD) and malignant neopasms (NM).Comparison of the data in the literature in some cases have been difficult due to the fundamentally different methods of detection the activity or concentration of TK-1, used by authors, even despite the presence of relatively high (but not absolute) correlation between these parameters (maximum 0.8).Many clinical and laboratory studies have shown levels of correlation and/or TK-1 activity with clinical stages and different types of LPD and solid MN and can serve as a prognostic factor for overall and recurrence-free survival of patients. When solid MN shown that the activity of TK-1 accurately reflects the proliferative status of tumor.A comparison of the dynamics of TC-1 in the process of chemotherapy and its clinical efficacy, different authors have received fundamentally different results: in some cases the marker reduction was associated with treatment efficacy, and in part of publications they show that the clinically relevant effects of the treatment observed increase in the marker after the first chemotherapy.The entire set of received data demonstrates the relevance of the further development of the algorithm use of TK-1 in oncology practice

    Π’ΠΈΠΌΠΈΠ΄ΠΈΠ½ΠΊΠΈΠ½Π°Π·Π° 1 ΠΊΠ°ΠΊ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹ΠΉ опухолСассоциированный ΠΌΠ°Ρ€ΠΊΠ΅Ρ€: структура, Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ, Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π² Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½Ρ‹Ρ… ΠΈ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… тканях

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    In the review the role of the thymidine kinase (TK) to ensure the replication of DNA de novo and spare (salvage the) way in health and activateΒ alternate ways in carcinogenesis is described. The structure of cytoplasmic TK (TК-1), also called fetal, and the level of regulation of its activityΒ in the cells and their change during the cell cycle is described. Considering the data about the absence of TK-1 in resting (G0) cells, TK-1Β is positioned as a marker of proliferating cells, which activity is recorded from late G1 phase, peaking in S-phase, it is stored in the G2 and mitosis,Β quickly decreasing to undetectable levels in the early G1 phase.Β Data on the expression TK-1 (as compared with Ki-67 and PCNA (proliferating cell nuclear antigen)) in tumor tissues (colorectal, breast,Β cervical, lung, renal, prostate and ovarian cancer), as well as some benign and precancerous pathological processes in relation to the clinicalΒ and diagnostic features of these processes are systemized. These data suggest that the proliferative index studies on TK-1 (antibody to the domainΒ HRA-210) should be used together with Ki-67 and PCNA, for a more complete assessment of the proliferative status of malignant tumorsΒ and pre-cancerous and benign conditions, with the aim of prognosis of the tumor process and treatment planning.Π’ ΠΎΠ±Π·ΠΎΡ€Π΅ прСдставлСны Π΄Π°Π½Π½Ρ‹Π΅ ΠΎ Ρ€ΠΎΠ»ΠΈ Ρ‚ΠΈΠΌΠΈΠ΄ΠΈΠ½ΠΊΠΈΠ½Π°Π·Ρ‹ (ВК) Π² обСспСчСнии Ρ€Π΅ΠΏΠ»ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π”ΠΠš de novo ΠΈ посрСдством запасного (salvage)Β ΠΏΡƒΡ‚ΠΈ Π² Π½ΠΎΡ€ΠΌΠ΅, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΈ запасного ΠΏΡƒΡ‚ΠΈ ΠΏΡ€ΠΈ ΠΊΠ°Π½Ρ†Π΅Ρ€ΠΎΠ³Π΅Π½Π΅Π·Π΅. ΠžΠΏΠΈΡΠ°Π½Ρ‹ структура цитоплазматичСской ВК (ВК-1),Β Π½Π°Π·Ρ‹Π²Π°Π΅ΠΌΠΎΠΉ Ρ‚Π°ΠΊΠΆΠ΅ Ρ„Π΅Ρ‚Π°Π»ΡŒΠ½ΠΎΠΉ, рСгуляция Π΅Π΅ уровня ΠΈ активности Π² ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… ΠΈ ΠΈΡ… измСнСния Π½Π° протяТСнии ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Ρ†ΠΈΠΊΠ»Π°.Β Π‘ ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΠ± отсутствии ВК-1 Π² покоящихся (G0) ΠΊΠ»Π΅Ρ‚ΠΊΠ°Ρ… ΠΎΠ½Π° позиционируСтся Π² Π»ΠΈΡ‚Π΅Ρ€Π°Ρ‚ΡƒΡ€Π΅ ΠΊΠ°ΠΊ ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ…Β ΠΊΠ»Π΅Ρ‚ΠΎΠΊ, Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ рСгистрируСтся, начиная с ΠΏΠΎΠ·Π΄Π½Π΅ΠΉ G1‑фазы ΠΈ достигая максимума Π² S-Ρ„Π°Π·Π΅, сохраняСтся в G2‑фазС ΠΈ ΠΌΠΈΡ‚ΠΎΠ·Π΅, быстро сниТаСтся Π΄ΠΎ нСопрСдСляСмых Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ Π² Ρ€Π°Π½Π½Π΅ΠΉ G1‑фазС. БистСматизированы Π΄Π°Π½Π½Ρ‹Π΅ ΠΎΠ± экспрСссии ВК-1 (Π² сопоставлСнии с Ki-67 ΠΈ PCNA (proliferating cell nuclear antigen)) Π² опухолСвых тканях (ΠΏΡ€ΠΈ ΠΊΠΎΠ»ΠΎΡ€Π΅ΠΊΡ‚Π°Π»ΡŒΠ½ΠΎΠΌ Ρ€Π°ΠΊΠ΅, Ρ€Π°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, шСйки ΠΌΠ°Ρ‚ΠΊΠΈ, Π»Π΅Π³ΠΊΠΎΠ³ΠΎ, ΠΏΠΎΡ‡ΠΊΠΈ, ΠΏΡ€Π΅Π΄ΡΡ‚Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, яичников),Β Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΈ Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… доброкачСствСнных ΠΈ ΠΏΡ€Π΅Π΄ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… патологичСских процСссах Π² сопоставлСнии с ΠΈΡ… ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-диагностичСскими характСристиками. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½Π½Ρ‹Π΅ Π΄Π°Π½Π½Ρ‹Π΅ ΡΠ²ΠΈΠ΄Π΅Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΡƒΡŽΡ‚ ΠΎ Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ исслСдования индСкса ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ†ΠΈΠΈΒ ΠΏΠΎ ВК-1 (с Π°Π½Ρ‚ΠΈΡ‚Π΅Π»Π°ΠΌΠΈ ΠΊ Π΄ΠΎΠΌΠ΅Π½Ρƒ XPA-210) цСлСсообразно ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ наряду с Ki-67 ΠΈ PCNA для Π±ΠΎΠ»Π΅Π΅ ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΎΡ†Π΅Π½ΠΊΠΈ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ статуса злокачСствСнных Π½ΠΎΠ²ΠΎΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€Π΅Π΄Ρ€Π°ΠΊΠΎΠ²Ρ‹Ρ… ΠΈ доброкачСствСнных состояний Π² цСлях прогнозирования тСчСния ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ процСсса ΠΈ планирования Ρ‚Π°ΠΊΡ‚ΠΈΠΊΠΈ лСчСния

    Π‘ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Π΅ прСдставлСния ΠΎ сСрологичСских опухолСассоциированных ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Π°Ρ… ΠΈ ΠΈΡ… мСстС Π² ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ

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    The paper reviews modern concepts of serological tumor markers and their place in oncology: using for differential diagnostics, in the prognosisΒ of the tumor, follow-up and for preclinical revealing of relapses, as well as in the screening aimed at early detection of malignant neoplasms.Β Biochemical characteristics and functions of most informative tumor markers (CA125, PSA etc.) were described.Β Currently diagnostic indexes, obtained by the in vitro diagnostic multivariate index assay (IVDMIA), and algorithms using several serologicalΒ markers begin to apply in laboratory practice to increase diagnostic accuracy. Also some promising new serological tumor markers wereΒ described in this review.ΠžΠ±Π·ΠΎΡ€ посвящСн соврСмСнным прСдставлСниям ΠΎ сСрологичСских опухолСассоциированных ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Π°Ρ… (ОМ) ΠΈ ΠΈΡ… мСстС Π² ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ: использовании для Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ диагностики, Π² ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π΅ тСчСния ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ процСсса, ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π΅ ΠΈ для доклиничСского выявлСния Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²ΠΎΠ² Π±ΠΎΠ»Π΅Π·Π½ΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ Π² скринингС, Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Π½ΠΎΠΌ Π½Π° Ρ€Π°Π½Π½Π΅Π΅ выявлСниС злокачСствСнных Π½ΠΎΠ²ΠΎΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΉ. ΠžΠΏΠΈΡΠ°Π½Ρ‹ биохимичСскиС характСристики ΠΈ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… ОМ (БА125, ПБА ΠΈ Π΄Ρ€).Β Π’ настоящСС врСмя с Ρ†Π΅Π»ΡŒΡŽ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ диагностичСской точности Π² Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½ΠΎΠΉ ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ Π½Π°Ρ‡ΠΈΠ½Π°ΡŽΡ‚ ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡ‚ΡŒΡΡ диагностичСскиС индСксы, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ ΠΏΡƒΡ‚Π΅ΠΌ многопарамСтричСского Π°Π½Π°Π»ΠΈΠ·Π° in vitro (in vitro diagnostic multivariate index assay, IVDMIA),Β ΠΈ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΡ‹ с использованиСм Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… сСрологичСских ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ². Π’Π°ΠΊΠΆΠ΅ Π² ΠΎΠ±Π·ΠΎΡ€Π΅ описаны Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π½ΠΎΠ²Ρ‹Π΅ пСрспСктивныС сСрологичСскиС ОМ
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