7 research outputs found
Dehydrin Association with Supercomplexes of Pea Seedlings Mitochondria Under Hypothermia
The reaction of plant cell on many stressful conditions is accompanied by accumulation of protective proteins. Dehydrins are widespread in a plant kingdom and accumulated in reply to a drought, freezing, salt stress, and also high temperature. Earlier we found the accumulation of dehydrins in mitochondria of some plants under various stresses. This work aims to study the quantitative changes and localization of dehydrins in the mitochondria of pea seedlings under low temperature impact of varying intensity and duration. It has been found that the dehydrins content in mitochondria of pea seedlings subjected to the action of low temperatures increases. The maximum dehydrins content was founds after cold hardening which is accompanied by cryotolerance increasing. For the first time it was established that the part of dehydrins of plant mitochondria is localized in the several organellar supercomplexes
First experimental results obtained using the highpower free electron laser at the siberian center for photochemical research
The first lasing near the wavelength of 140 Β΅m was achieved in April 2003 using a high-power free electron laser (FEL) constructed at the Siberian Center for Photochemical Research. In this paper we briefly describe the design of the FEL driven by an acceleratorβrecuperator. Characteristics of the electron beam and terahertz laser radiation, obtained in the first experiments, are also presented in the paper.Π£ Π‘ΠΈΠ±ΡΡΡΡΠΊΠΎΠΌΡ ΡΠ΅Π½ΡΡΡ ΡΠΎΡΠΎΡ
ΡΠΌΡΡΠ½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ Π½Π°Π²Π΅ΡΠ½Ρ 2003 ΡΠΎΠΊΡ ΠΎΡΡΠΈΠΌΠ°Π½Π° Π³Π΅Π½Π΅ΡΠ°ΡΡΡ Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΠ²Π°Π½Π½Ρ Π· Π΄ΠΎΠ²ΠΆΠΈΠ½ΠΎΡ Ρ
Π²ΠΈΠ»Ρ 140 ΠΌΠΊΠΌ Π½Π° ΠΏΠΎΡΡΠΆΠ½ΠΎΠΌΡ Π»Π°Π·Π΅ΡΡ Π½Π° Π²ΡΠ»ΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΊΡΡΠΎΠ½Π°Ρ
(ΠΠΠ). Π£ ΡΠΎΠ±ΠΎΡΡ ΠΊΠΎΡΠΎΡΠΊΠΎ ΠΎΠΏΠΈΡΠ°Π½Π° ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ ΠΠΠ Π½Π° Π±Π°Π·Ρ ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΠ° ΡΠ΅ΠΊΡΠΏΠ΅ΡΠ°ΡΠΎΡΠ° Ρ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π²ΠΈΠΌΡΡΡΠ²Π°Π½Π½Ρ Π΄Π΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² Π΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΡΠΊΠ° Ρ ΡΠ΅ΡΠ°Π³Π΅ΡΡΠΎΠ²ΠΎΠ³ΠΎ Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΠ²Π°Π½Π½Ρ.Π Π‘ΠΈΠ±ΠΈΡΡΠΊΠΎΠΌ ΡΠ΅Π½ΡΡΠ΅ ΡΠΎΡΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π²Π΅ΡΠ½ΠΎΠΉ 2003 Π³ΠΎΠ΄Π° ΠΏΠΎΠ»ΡΡΠ΅Π½Π° Π³Π΅Π½Π΅ΡΠ°ΡΠΈΡ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ Ρ Π΄Π»ΠΈΠ½ΠΎΠΉ Π²ΠΎΠ»Π½Ρ 140 ΠΌΠΊΠΌ Π½Π° ΠΌΠΎΡΠ½ΠΎΠΌ Π»Π°Π·Π΅ΡΠ΅ Π½Π° ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΡΡ
ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π°Ρ
(ΠΠ‘Π). Π ΡΠ°Π±ΠΎΡΠ΅ ΠΊΡΠ°ΡΠΊΠΎ ΠΎΠΏΠΈΡΠ°Π½Π° ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΠΠ‘Π Π½Π° Π±Π°Π·Π΅ ΡΡΠΊΠΎΡΠΈΡΠ΅Π»Ρ ΡΠ΅ΠΊΡΠΏΠ΅ΡΠ°ΡΠΎΡΠ° ΠΈ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π½Π΅ΠΊΠΎΡΠΎΡΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΡΠΊΠ° ΠΈ ΡΠ΅ΡΠ°Π³Π΅ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ
ΠΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ Π°ΠΊΡΠΈΠ½-ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΡ Π±Π΅Π»ΠΊΠΎΠ² ΡΠ°ΡΡΠΈΠ½Π° ΠΈ ΡΠ·ΡΠΈΠ½Π° Ρ Π±ΠΎΠ»ΡΠ½ΡΡ ΠΏΠ»ΠΎΡΠΊΠΎΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠΌ ΡΠ°ΠΊΠΎΠΌ Π³ΠΎΠ»ΠΎΠ²Ρ ΠΈ ΡΠ΅ΠΈ
Rationale: During neoplastic transformation, epithelial cells become mobile, which is one of the main mechanisms of metastatic disease and recurrence. Cell motility is regulated by actin-binding proteins, which ensure the association/dissociation of actin filaments and their interaction with the cell membrane. Previously, we have shown the presence of actin-binding proteins in the serum from patients with squamous cell carcinoma of the head and neck (HNSCC); however, their association with the development of metastases and relapses in cancer patients has not been sufficiently studied.
Aim: To evaluate the serum levels of actin-binding proteins fascin-1 and ezrin in patients with HNSCC depending on the disease recurrence and lymphatic metastasis.
Materials and methods: Serum fascin-1 and ezrin levels before combination therapy were measured with ELISA assay in 30 HNSCC (T1-4N0-2M0) patients (mean age 56 7 years).
Results: The median fascin-1 level was significantly higher in the patients with lymphatic metastases, compared to those without metastases: 0.64 (0.40; 5.89) vs 6.35 (1.72; 8.35) ng/mL, respectively (p 0.001). At 12 to 36 months after combination therapy, the disease relapsed in 12 (40%) patients. Ezrin levels were significantly higher in the relapsed patients, compared to those without a relapse within 3 years after combination therapy: 2.55 (2.35; 2.75) vs 1.93 (1.87; 2.5) ng/mL (p = 0.02). The ROC analysis showed an association between fascin-1 serum levels with metastatic disease (AUC = 0.71, 95% confidence interval 0.570.85) and an association between ezrin levels and the disease relapse (AUC = 0.76, 95% confidence interval 0.570.94).
Conclusion: These indicators can be used for the development of minimally invasive early detection of metastases in lymphatic nodes and for the prognosis of HNSCC recurrence.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. Π ΠΏΡΠΎΡΠ΅ΡΡΠ΅ Π½Π΅ΠΎΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ°Π½ΡΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΡΠΏΠΈΡΠ΅Π»ΠΈΠ°Π»ΡΠ½ΡΠ΅ ΠΊΠ»Π΅ΡΠΊΠΈ ΡΡΠ°Π½ΠΎΠ²ΡΡΡΡ ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΡΠΌΠΈ, ΡΡΠΎ ΡΠ»ΡΠΆΠΈΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠΎΠ² ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. ΠΠ»Π΅ΡΠΎΡΠ½Π°Ρ ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΠΎΡΡΡ ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅ΡΡΡ Π°ΠΊΡΠΈΠ½-ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΠΌΠΈ Π±Π΅Π»ΠΊΠ°ΠΌΠΈ, ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΡΡΠΈΠΌΠΈ Π°ΡΡΠΎΡΠΈΠ°ΡΠΈΡ/Π΄ΠΈΡΡΠΎΡΠΈΠ°ΡΠΈΡ Π°ΠΊΡΠΈΠ½ΠΎΠ²ΡΡ
ΡΠΈΠ»Π°ΠΌΠ΅Π½ΡΠΎΠ² ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΎΠ±ΠΎΠΉ ΠΈ Ρ ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠΉ ΠΌΠ΅ΠΌΠ±ΡΠ°Π½ΠΎΠΉ. Π Π°Π½Π΅Π΅ Π½Π°ΠΌΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠ΅ Π°ΠΊΡΠΈΠ½-ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΡ
Π±Π΅Π»ΠΊΠΎΠ² Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΏΠ»ΠΎΡΠΊΠΎΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠΌ ΡΠ°ΠΊΠΎΠΌ Π³ΠΎΠ»ΠΎΠ²Ρ ΠΈ ΡΠ΅ΠΈ (ΠΠ ΠΠ¨), ΠΎΠ΄Π½Π°ΠΊΠΎ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΠΈΡ
ΡΠ²ΡΠ·Ρ Ρ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΎΠ² ΠΈ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΎΠ² Ρ ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π±ΠΎΠ»ΡΠ½ΡΡ
.
Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΡ ΡΡΠΎΠ²Π΅Π½Ρ Π°ΠΊΡΠΈΠ½-ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΡ
Π±Π΅Π»ΠΊΠΎΠ² ΡΠ°ΡΡΠΈΠ½Π°-1 ΠΈ ΡΠ·ΡΠΈΠ½Π° Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΠ ΠΠ¨ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ Π»ΠΈΠΌΡΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ.
ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π£ 30 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΠΠ ΠΠ¨ (T1-4N0-2M0), ΡΡΠ΅Π΄Π½ΠΈΠΉ Π²ΠΎΠ·ΡΠ°ΡΡ 56 7 Π»Π΅Ρ, ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΈΠΌΠΌΡΠ½ΠΎΡΠ΅ΡΠΌΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈ ΡΡΠΎΠ²Π½ΠΈ ΡΠ°ΡΡΠΈΠ½Π°-1 ΠΈ ΡΠ·ΡΠΈΠ½Π° Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ Π΄ΠΎ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ.
Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ΅Π΄ΠΈΠ°Π½Π½ΡΠΉ ΡΡΠΎΠ²Π΅Π½Ρ ΡΠ°ΡΡΠΈΠ½Π°-1 Π±ΡΠ» ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΠΎ Π²ΡΡΠ΅ Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ Π»ΠΈΠΌΡΠΎΠ³Π΅Π½Π½ΡΠΌΠΈ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·Π°ΠΌΠΈ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ Π±ΠΎΠ»ΡΠ½ΡΠΌΠΈ Π±Π΅Π· ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΎΠ²: 0,64 (0,40; 5,89) ΠΈ 6,35 (1,72; 8,35) Π½Π³/ΠΌΠ» ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ (p 0,001). Π ΠΏΠ΅ΡΠΈΠΎΠ΄ ΠΎΡ 12 Π΄ΠΎ 36 ΠΌΠ΅ΡΡΡΠ΅Π² ΠΏΠΎΡΠ»Π΅ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΡΠ΅ΡΠΈΠ΄ΠΈΠ² ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΡΠ°Π·Π²ΠΈΠ»ΡΡ Ρ 12 (40%) Π±ΠΎΠ»ΡΠ½ΡΡ
. Π£ΡΠΎΠ²Π΅Π½Ρ ΡΠ·ΡΠΈΠ½Π° Π±ΡΠ» ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΠΎ Π²ΡΡΠ΅ Π² Π³ΡΡΠΏΠΏΠ΅ Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ Π±ΠΎΠ»ΡΠ½ΡΠΌΠΈ ΠΠ ΠΠ¨, Ρ ΠΊΠΎΡΠΎΡΡΡ
ΡΠ΅ΡΠΈΠ΄ΠΈΠ²Ρ Π½Π΅ ΡΠ°Π·Π²ΠΈΠ»ΠΈΡΡ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 3 Π»Π΅Ρ ΠΏΠΎΡΠ»Π΅ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ: 2,55 (2,35; 2,75) ΠΏΡΠΎΡΠΈΠ² 1,93 (1,87; 2,5) Π½Π³/ΠΌΠ» (p = 0,02). ΠΠΎ Π΄Π°Π½Π½ΡΠΌ ROC-Π°Π½Π°Π»ΠΈΠ·Π° Π²ΡΡΠ²Π»Π΅Π½Π° ΡΠ²ΡΠ·Ρ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΠ°ΡΡΠΈΠ½Π°-1 Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ Ρ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠΌ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ (AUC = 0,71, 95% Π΄ΠΎΠ²Π΅ΡΠΈΡΠ΅Π»ΡΠ½ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π» 0,570,85) ΠΈ ΡΠ²ΡΠ·Ρ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΠ·ΡΠΈΠ½Π° Ρ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΎΠ² (AUC = 0,76, 95% Π΄ΠΎΠ²Π΅ΡΠΈΡΠ΅Π»ΡΠ½ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π» 0,570,94).
ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π΄Π»Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΌΠ°Π»ΠΎΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΡΡ
ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² ΡΠ°Π½Π½Π΅Π³ΠΎ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΎΠ² Π² Π»ΠΈΠΌΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ·Π»Π°Ρ
ΠΈ Π΄Π»Ρ ΠΏΡΠΎΠ³Π½ΠΎΠ·Π° ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΠ ΠΠ¨