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periphery of oasis, and in uneven sands, on sandy ridges not high (5-6% hits, or on the average on 1 ha 3-4 and on the takyr plains of the clay desert quantity her youngs of wild animal).
DIAGNOSTIC VALUE OF THE DETERMINATION OF THE LEVEL OF CONDUCTIVE CYTOKINES IN CERVICAL INTRAEPITELIAL NEOPLASIA
Kalandarova Amina Nurullaevna
Candidate of medicine science, Aripova Tamara Uktamovna
Academician, Doctor of medicine science Institute of Human Immunology and Genomics Academy of Sciences of the Republic of Uzbekistan DOI: 10.31618/ESU.2413-9335.2019.2.64.221
SUMMARY
The results of a comprehensive survey of 111 women of reproductive age with varying degrees of CIN residing in the Republic of Karakalpakstan were studied. The following research methods were used: clinical, ultrasound, endoscopic (colposcopy), cytological, immunological, bacterioscopic, bacteriological, PCR. It was revealed that the severity of immunological disorders is correlated with the nature of pathological changes in cervical intraepithelial tissue, which indicates the involvement of the immune system in the pathogenesis of CIN.
Key words: cervical intraepithelial neoplasia, immunity, immunocorrection.
By diseases of the cervix, prior invasive cervical cancer or precancerous cervical disease include epithelial dysplasia I-III severity [cervical intraepithelial neoplasia (Cervical Intraepithelial Neoplasia - CIN) or squamous intraepithelial lesions (Squamous Intraepithelial Lesion - SIL)]. Cervical intraepithelial neoplasias are characterized by impaired differentiation of epithelial cells as a result of proliferation of cambial elements with the development of their atypia, loss of polarity and impaired histostructure [6,7].
It is promising to study the characteristics of local production of cytokines in PVI associated with neoplastic changes in the cervical epithelium, which is necessary to assess the immune response and predict the risk of malignant transformation of infected cells [2,4]. The development of an immune response to a tumor antigen is not always a guarantee of the mobilization of antitumor protection, since it can lead to the induction of those immunological mechanisms that stimulate tumor growth. Despite the active study of the role of cytokines in the implementation of antitumor immunity, as well as their applicability in the diagnosis and treatment of tumors of different localization, the characteristics of cytokine metabolism and the dynamics of production of growth factors in patients with dysplasia and neoplasia of the cervical epithelium at the cervical level are not well understood.
Material and research methods
We presented data from our research on a comprehensive survey of 111 women of reproductive age with varying degrees of CIN living in the Republic of Karakalpakstan. Of the women surveyed, CIN I -was detected in 45, who made up the 1st group, CIN II - in 35 women - the 2nd group and 31 women with CIN III - the 3rd group.
Immunological studies were conducted by studying some parameters of the cellular (CD3, CD4, CD8, CD16, CD20, CD25, CD95) humoral (IgG, IgA, IgM) and cytokine (IL-1b, IL-6, TNFa and IFNy) status. The control group consisted of 24 healthy women.
We used the following research methods: clinical, ultrasound, endoscopic (colposcopy), cytological, immunological, bacterioscopic, bacteriological, PCR. Molecular biological studies with DNA typing and PCR were considered important and informative evidence of the presence of infectious pathogens. For the purpose of early diagnosis of cervical dysplasia, a study of smears from the surface of the cervical epithelium and cervical canal was performed.
Immunological research methods. Evaluation of the immune status of modern concepts implies a comprehensive study of the immune system, including testing its most important functional units. The determination of cellular immunity. Evaluation of the state of the immune system is carried out by expression of CD differentiation antigens. We identified the following markers of immunocompetent cells (ICC): CD3 + -, CD4 + -, CD8 + -, CD20 + -, CD16 + -lymphocytes. Determination of humoral immunity. The determination of the serum concentration of immunoglobulins of the main three classes A, M and G is carried out by the generally accepted method of radial immunodiffusion according to Mancini (1963).
Determination of cytokine status. The concentrations of cytokines IL-2, IL-6, TNFa and IFNy were determined in serum by the method of solid phase ELISA in accordance with the manufacturer's recommendations (Vector Best, Novosibirsk, Russian Federation).
Results and discussion
Analysis of the data showed that HPV was detected in 77.8% of the women surveyed. Of these, HPV risk of high oncogenic risk (16,18,31,33) was detected in 28.6% of patients with CIN I, in 86.2% of patients with CIN II, in 88.6-88% of patients with CIN III and cervical cancer. Analysis of the data for the presence of TORCH infection showed a fairly high detectability of HSV (85.9%) and CMV (87.8%) infections, urea- (25.6%) - and mycoplasma (14.7%), Chlamydia trachomatis (42 , 3%), Mycoplasma genitalium (42.3%). Mixed infection was observed in 36.8% of the women surveyed. This suggests a certain
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Евразийский Союз Ученых (ЕСУ) #7(64), 2019
synergism of interaction between viruses and urea-mycoplasmas.
It is known that patients with certain congenital defects have a risk of developing malignant tumors 1000 times greater than the average in the population [12,18,25].We have studied the heredity of the presence of cancer in history. It was found that in 13.1% of women with HPV and in 14.9% - without HPV, heredity was aggravated by various oncological diseases (P> 0.05). Of these, 52% indicated malignant diseases of the genitalia through the mother. The most frequently noted cervical and breast cancers, which accounted for 9.6% and 5.8%, respectively. As a result of the obtained data, we can conclude that there is a high correlative dependence of the frequency of the pathology of the reproductive and somatic status of women (r = 0.54). The analysis made it possible to identify a group of factors that can be defined as
According the above data, the level of T-lymphocytes and T-helper cells in patients is reduced (P <0.05), with the most pronounced in women with CIN III (P <0.01). At the same time, there was an increase in the level of T-suppressors with the maximum value in women of the 3rd group (P <0.001). The immunoregulation index was biased towards an increase in suppressor activity (P <0.001). Analysis of the data on the study of killer activity showed that with CINI, a significant increase in the level of CD16 + cells was observed, and with the development of neoplasia, suppression of killer activity was observed. The data obtained indicate the activation of the T-cell cytotoxic component in the examined patients.
The mean CD20 + value in patients with CIN I was elevated. While with CIN II and III, their decrease
Low values of serum IgG (1017 ± 2.2 g / l) were detected in 22.5% of women with CIN I and in 1 (10%) women of the control group (P <0.05). These data also indirectly indicate the activation of humoral immunity in women with CIN. In most patients with CIN, the
to the formation of immunodeficiency states and the suppression of local defense mechanisms, and provocative factors trigger an infectious process against the background of an existing predisposition.
Immunological characteristics of women with CIN. Women with a reduced immune response are more susceptible to persistent infection with oncogenic human papilloma viruses and at risk of developing CIN and cervical cancer [1,2]. We have conducted studies on the state of the immune system of women with cervical intraepithelial neoplasia of various degrees. The women examined by us were 3 groups: the 1st group - 45 women with CIN I, the 2nd group - 35 patients with CIN II and the 3rd group - 31 women with CIN III. Table 1 presents the data of cellular and humoral immunity. As can be seen from the presented data, the level of T-lymphocytes in patients is reduced, with the minimum value registered in women of the 3rd
was observed (P <0.05). Studies have shown that the content of T-lymphocytes expressing the CD25 + molecule was within the normal range in 22.5% of women with CIN I. In CIN I, a significant increase was observed, while in women with CIN II and III, there was a decrease in blood levels of CD95 + cells (P> 0.05). Decreased serum IgA was detected in 86.9% of women with CIN II-III and in 1 (10%) women of the CIN I group (P <0.01). A low level of serum IgA creates an opportunity for persistence and reinfection of HPV (Table 2). Within the normal range, the concentration of serum IgM in women remained CIN I. However, their level tended to significantly increase in women with CIN II and III (P <0.05).
Table 2
humoral immunity was insufficient (hyporeactivity or increased production of key Ig - IgG depending on the degree of CIN), and the prevalence of serum IgM, which is an "early" antibody of lower affinity [14,19], may indicate a decreased the effectiveness of
predisposing and provoking. Predisposing factors lead group (P <0.01).
Table 1
Indicator Control n=24 CIN I n=45 CIN II n=35 CIN III n=31
CD3+,% 53,8 ± 1,7 48,7± 1,6* 45,4± 1,7* 43,5± 1,6*
CD4+,% 31,2 ± 1,3 29,3± 1,2* 27,6± 1,3* 26,7 ± 1,5*
CD8+,% 23,6 ± 1,1 25,5± 1,3 28,3± 1,4* 35,2 ± 1,3*
CD4/CD8 1,32 ± 0,01 1,14 ± 0,02* 0,97 ± 0,01* 0,75 ± 0,01*
CD16+,% 13,7 ± 0,9 18,7 ± 0,9* 13,7 ± 0,9* 13,7 ± 0,9*
CD20+,% 24,6 ± 1,1 28,6 ± 1,2 20,6 ± 1,1* 18,6 ± 0,9*
CD25+,% 23,5 ± 1,2 29,5 ± 1,3* 31,4 ± 1,4* 35,5 ± 1,3*
CD95+,% 28,7 ± 1,4 35,7 ± 1,5* 22,9 ± 1,3* 21,7 ± 1,5*
Note: * Values are reliable with respect to control data. groups (P <0.05-0.001)
THE STATE OF HUMORAL IMMUNITY OF WOMEN (MG /%)
Indicator Control n = 24 CIN I n =45 CIN II n =35 CIN III n =31
Ig G 1017±2,2 1107±6,1 1173±5,2* 1141±4,8*
Ig A 197±1,0 183±1,1* 408±4,3* 172±1,8Л*
Ig M 157±1,3 168±1,9 224±3,5* 206±2,2*
Note: where * - P <0.05-0.001 the significance of differences compared with the control; where A - P <0.050.001 significance of differences compared with women CIN I
neutralizing viral antigens in the extracellular environment. Our data confirm once again that the imbalance of immunocompetent cells, depending on the degree of CIN, is determined by the violation of the control mechanisms of protection of the macroorganism [24]. In most women with CIN, violations of the T-cell immune response are manifested by a decrease in the ability to activate T-lymphocytes with their normal content.
We found a significant decrease in the ability of blood cells to respond with interferon products in response to the effects of inductors, which indicates the presence of a long period of hyporeactivity - a distinctive feature of severe chronic inflammatory process in most of the patients we examined. We found that the cytokine status of the majority of patients with CIN were violated more significantly than the indicators of cellular immunity. Thus, IFN-y was practically not detected in women with CIN II and III, while the frequency of INF-y detection was only 12%. the level of proinflammatory cytokines in women with CIN was significantly higher than the control group. the level of tumor necrosis factor in women with CIN II was 2.5 times higher than the values of women in the control group (P <0.001), whereas in women with CIN III this value was increased more than 3 times (P <0.001) .
Studies have shown that with CIN II, the level of IL-2 increased by 1.8 times (P <0.001), and in patients with a diagnosis of CIN III, this figure was increased 5.3 times. According to the literature, the participation of IL-2 is equally important both for the induction of specific T-killers and for the activation of nonspecific antitumor defense mechanisms [5,6].
Thus, one of the links in the pathogenesis of squamous intraepithelial damage is damage to the immune system of the mucous membrane of the cervix, which causes functional discoordination of cellular renewal and contributes to the development and progression of pre-tumor structural changes in the mucous membrane of the cervix.
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