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Assessment of serum Talin-1 in liver cirrhosis and hepatocellular carcinoma



Early detection of hepatocellular carcinoma (HCC) is crucial for improving the survival rate for patients. Talin-1 is first identified as a cytoskeleton protein that is required for cell adhesion and motility and plays a role in tumor migration and metastasis. In the present work, we aimed to study the possible role of Talin1 compared to alpha fetoprotein (AFP) in the diagnosis and prognosis of HCC.


To achieve this goal, serum levels of Talin-1 were measured using enzyme-linked immunosorbent assay (ELISA) in 90 patients divided into four groups. Group I: 30 patients with early HCC. Group II: 30 patients with late HCC according to Modified Barcelona-Clinic Liver Cancer (BCLC). Group III: 15 patients with liver cirrhosis, and group IV: 15 healthy controls. Receiver operating characteristics (ROC) curve analysis was used to create a predictive model for Talin-1 relative to AFP in HCC diagnosis.


It was found that serum Talin-1 in HCC patients was significantly higher compared to its level in cirrhotic patients and the healthy control group. Talin-1 was superior to AFP regarding sensitivity, specificity, positive, and negative predictive value in the diagnosis of HCC. We also found a significant positive correlation between serum Talin-1 and the degree of tumor burden of HCC (BCLC staging), tumor size, and vascular invasion.


Talin-1 holds a promise as a potential marker for HCC diagnosis and prognosis.


Hepatocellular carcinoma (HCC) is one of the most prevalent cancers worldwide [1]. About 10.9 million new cases of cancer are diagnosed annually, thus representing an international public health problem [2]. It is ranked as the sixth most common cancer. In the absence of surveillance and early detection programs, HCC presents late, at which curative therapy can seldom be applied safely and when feasible management is not effective. In Egypt, there is an increasing incidence of HCC, representing the leading cause of death among patients with chronic liver disease [3]. In the USA, about 35,660 new cases were diagnosed in 2015 [4].

Liver cirrhosis is the main risk factor for HCC and represents about 80%. The common causes of liver cirrhosis are chronic hepatitis B virus (HBV) infection or chronic hepatitis C virus (HCV) infection, alcoholics, non-alcoholic liver disease, aflatoxin exposure, obesity, and iron overload [5]. Irrespective of the etiology of cirrhosis, the annual incidence of progression from chronic hepatitis to cirrhosis to HCC is 3–7% [6]. Early diagnosis of HCC is crucial and allows the physician to apply curative and effective treatment, thus improving the survival rate. Therefore, achieving successful screening tool to be applied to patients with chronic liver disease who are at risk for HCC is critically important and challenging nowadays [7].

Serum AFP level is a useful tumor marker for the detection and monitoring of HCC. AFP is not always specific for HCC; it can be elevated in other carcinomas like gastric cancer and lung cancer [8], and liver disease other than HCC, such as hepatitis or cirrhosis. Also, AFP is not secreted in all cases of HCC, so the false-negative rate may be as high as 40% for patients with early-stage HCC. Its poor sensitivity renders it unsatisfactory for this purpose and suggests an urgent need for novel biomarkers for early-stage HCC detection [9].

Integrins are mediators of cell-extracellular matrix interaction, not only provide physical links with the cytoskeleton but also transduce signals from the ECM to the cell, mandatory for several cellular processes including migration, proliferation, and survival. One of the key proteins required for the assembly of cell-matrix adhesions is the adaptor protein Talin, which mediates the interaction between the actin cytoskeleton and integrins [10]. Talin-1 is expressed mainly in the kidney, liver, spleen, stomach, lung, and vascular smooth muscle [11]. Talin expression also is highly associated with endometrioid carcinoma and prostate cancer [12]. Recently Talin-1 was identified by differential tissue proteome as a novel molecular marker for HCC progression [13]. Talin is (270 kDa, 2541 amino acids), which is required to maintain cell spreading, cell migration, and focal adhesion formation [14]. This work aimed to study the role of serum Talin-1 in the diagnosis of HCC in comparison to AFP as regards negative and positive predictive values and to correlate it with the tumor characteristics as regards size and vascular invasion.

Materials and methods

This study was conducted on 90 patients who were admitted to Hepatobiliary Unit or followed in the hepatobiliary outpatients’ clinic, Alexandria Main University Hospital, Alexandria, Egypt. They were divided into four groups. Group I: 30 patients with early HCC with tumor characteristic of stages 0, A, B (very early, early, and intermediate) according to modified Barcelona-Clinic Liver Cancer (BCLC). Group II: 30 patients with late HCC with tumor characteristic of stages C, D according to modified BCLC (advanced and end-stage), Group III: 15 patients with HCV-related liver cirrhosis, and group IV: 15 age and sex-matched healthy subjects with no evidence of liver disease were included as a control group to obtain the normal range of biochemical assays. All participants were evaluated clinically as regards manifestations of the advanced liver disease, liver, spleen size, and presence or absence of ascites. HCC staging was done according to modified BCLC including tumor features, liver functions (according to Child-Pugh score), and patient’s performance status. Routine investigations were done including complete blood picture, blood urea level, serum creatinine, and liver test profile. Serological viral testing was done including HCV antibodies, hepatitis B surface antigen, and total hepatitis B core antibodies. Also, autoimmune markers and tumor markers including prostatic-specific antigen and serum AFP were done. All participants were subjected to measurement of serum levels of Talin-1 using the ELIZA technique. Abdominal ultrasonography was done for assessment of the liver, spleen, portal circulation, and ascites. Diagnosis of HCC was obtained by multiphasic contrast-enhanced computer tomography (CT) or dynamic contrast-enhanced magnetic resonance imaging (MRI) to assess HCC imaging hallmarks, size, number of the lesion(s), and vascular involvement and thrombosis.

Principle of the serum Talin 1 assay by using standardized ELISA kit

This assay employed the quantitative sandwich enzyme immunoassay technique. Antibody specific for TLN1 had been pre-coated onto a microplate. Standards and samples were pipetted into the wells, and any TLN1 present was bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for TLN1 was added to the wells. After washing, avidin-conjugated horseradish peroxidase (HRP) was added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution was added to the wells and color develops in proportion to the amount of TLN1 bound in the initial step. The color development was stopped, and the intensity of the color was measured.

Patients with rheumatoid arthritis, alcohol abuse, autoimmune liver diseases, and active infections or prostatic carcinoma were excluded from our study. Also, absolute contraindication to multiphasic contrast-enhanced CT or refusing triphasic CT imaging was considered. The study protocol was approved by the Research Review Committee of the Alexandria Faculty of Medicine and was conformed to the 1975 Declaration of Helsinki. Informed consent was obtained from each subject included in the study.

Statistical analysis

Were performed using data fed to the computer using SPSS software. Qualitative data were described using number and percent. Quantitative data were described using range, mean, standard deviation, and median. The significance of the results was judged at the 5% level. The sensitivity and specificity of serum TALIN 1 in patients and controls were assessed by plotting (ROC) curve and determining its cut-off values.


The present study was performed on 90 individuals who were classified into four groups, Group I, II, and III included patients with early HCC, late HCC, and HCV-related liver cirrhosis respectively, while Group IV included healthy control. The mean age was 54.77 ± 9.70, 56.13 ± 6.77, 53.87 ± 8.41, and 49.93 ± 11.0 in the groups I, II, III, and IV, respectively; there was no significant difference between the studied groups (p=0.177). Regarding sex, the male gender was more dominant in all studied groups than female, but with no significant difference (p=0.07). Regarding the severity of liver disease, there was a significant difference between the three diseased groups, where most early HCC patients 21 (70%) and cirrhotic patients 11 (73.3%) were found to have B CHILD score, while most of late HCC patients 16 (53.3%) had score C. According to the modified BCLC staging system for HCC, there was a significant difference between the two groups of HCC patients (p˂0.001), class B was more common 20 (66.7%) in early HCC patients, while class D was more common 17 (56.7%) in late HCC patients (Table 1).

Table 1 Comparison between the different studied groups according to demographic data, severity of liver disease, and the mean of investigated parameters and s. Talin-1 level

The laboratory investigations for the studied groups are shown in Table 1. All investigated parameters were significantly differed between the four studied groups except for ALT. A sharp significant (p<0.001) increase in the mean of AFP level was found in late HCC patients. Serum Talin-1 was significantly higher in HCC groups in comparison to other groups (p<0.001). Also, there was a significant increase in the mean of S. Talin-1level in late HCC patients than in other groups (p˂0.001).

The receiver operating characteristics (ROC) curve was established to find out the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of both AFP and Talin-1 to diagnose HCC; the area under the curve (AUC) for S. Talin-1 is larger (0.997) than that of AFP (0.792). At cut-off 4.3 ng/ml for S. Talin gives a sensitivity of 95% and specificity of 93.3% with PPV and NPP equal 98.3% and 82.4%, respectively, and accuracy of 94.7%, while at cut-off 200 ng/ml for AFP the sensitivity is 25%, specificity is 100% with PPV and NPV of 100% and 25%, respectively, and accuracy of 40%. At cut-off 9.1ng/ml for AFP, the sensitivity, specificity, PPV, NPV, and accuracy resulted equal 66.7%, 93.3%, 97.6%, 41.2%, and 72%, respectively (Fig. 1, Table 2).

Fig. 1
figure 1

ROC curve for S. Talin and AFP for diagnosing HCC patients

Table 2 Agreement (sensitivity, specificity, and accuracy) for s. Talin-1 and AFP with control and HCC groups

There were no significant correlations between serum levels of Talin-1 and different CHILD scores (r =0.051, p =0.077). There was a significant correlation between the level of serum Talin-1 and BCLC staging (p≤ 0.001, r =0.817). Also, serum Talin-1 levels were significantly higher in patients with vascular invasion compared to patients without vascular invasion in CT imaging (p=0.001) (Fig. 2, Table 3). Moreover, there was a significant positive correlation between serum Talin-1 levels and tumor size (r =0.267, p =0.040) (Table 3).

Fig. 2
figure 2

a, b Axial CT (HAP) showing diffuse infiltrative HCC on top of the cirrhotic liver with expansion of the right and left portal veins with a thrombus that showed enhancement in HAP (tumoral thrombus)

Table 3 Correlations between s. Talin-1 and different variables


Given that most HCC patients present with advanced disease, there is a pressing need for an effective biomarker that detects the presence and early stages of HCC at a better capacity than AFP. The identification of a novel biomarker for HCC that can overcome these limitations may improve surveillance efforts and clinical outcomes. Ideal tumor biomarkers should possess high specificity and sensitivity not to be detected in premalignant liver disease. It should be easily accessed, easily measurable, minimally invasive, inexpensive, accurate, and acceptable to patients and physicians [15]. It has been found in the present study that serum Talin-1 was significantly higher in patients with HCC compared with cirrhotic patients and healthy subjects. Thus, serum TALIN 1 has clear potential as a diagnostic tumor marker for HCC, especially in HCC patients with normal AFP values, and can be used effectively to distinguish HCC patients from healthy and cirrhotic subjects. More or less similar studies were conducted by Youns et al. [16] and Aboelfotoh et al. [17]. On another hand, contradictory results had been demonstrated by Mashaly et al. [18] that serum talin-1 in HCC patients was significantly lower than that in patients with cirrhosis and normal control.

We also observed a significant positive correlation between the level of Talin-1 and the degree of tumor burden of HCC. These findings suggest that the measurement of serum levels of Talin-1 may improve earlier detection of HCC and could potentially be a useful novel prognostic marker.

Regarding the correlation between serum Talin-1 level and size of the tumor, the present study revealed that there was a significant correlation between serum Talin-1 level and tumor size (r =0.267, p =0.040). Similar observations were reported by Fang et al. [19] who confirmed that Talin-1 knockdown MHCC-97 L cells when inoculated in animals, smaller tumors were obtained in comparison with those of the control groups. So that downregulation of Talin-1 is correlated with small tumor size. On the contrary, Aboelfotoh et al. [17] found no significant correlation was detected with tumor size.

In the present study, there was a significant correlation between serum Talin-1 level and the presence of metastatic tumors and vascular invasion. Similar observations were reported by Kanamori et al. [13] who studied the correlation of overexpression of Talin-1 and HCC metastasis by differential tissue proteome as a novel molecular marker for HCC metastasis and had revealed a correlation between Talin-1 upregulation and a shorter time of recurrence after resection, which may be related to the higher rate of portal vein invasion in HCC. This shows that Talin-1 may serve as a prognostic marker for HCC. Another finding that Talin-1 overexpression is strongly linked to a more aggressive form of HCC suggests that Talin-1 may play an important role in the metastasis of HCC. Also, our results go hand in hand with the findings of Fang et al. [20] who found that elevated Talin-1 expression was correlated with increased invasion and migration. Moreover, Sakamoto et al. [21] reported that the overexpression of Talin-1 enhanced prostate cancer cell adhesion, migration, and invasion by activating FAK/AKT signaling (survival signals). So, it is attempting to propose a potential strategy to block Talin-1-mediated survival signaling in tumor cells. A more or less similar study was conducted by Fang et al. [19] who used the interference technology to knockdown Talin-1 expression in MHCC-97 L cells, reported that the Talin-1 knockdown MHCC-97 L cells showed reduced Talin-1 mRNA and protein expressions, as well as arrested cell cycle in the G0/G1 phase, decreased invasion and migration abilities, confirming the involvement of Talin-1in HCC progression.

As regards the correlation between Talin-1 and tumor metastasis, contradictory results were reported by Zhang et al. [11] who found that the expression of Talin-1 protein and mRNA in HCC tissues was significantly lower than that in the adjacent non-cancerous tissues and normal liver tissues by immunohistochemistry and real-time PCR [11]. Also, Mashaly et al. [18] mentioned that increased invasion and metastasis correlated with reduced Talin-1 level. These results may be explained by the loss of Talin in the tumor tissue indicates a significant change in the integrity of these cancer tissues, and the possibility that individual cells may break away from the parent histology due to loss of cell adhesion, ultimately leading to tumor angiogenesis and development. Aravalli et al. [22] explained that Talin-1 exerts different effects in the formation of different cancer, which are the multi-step and complex processes associated with the accumulation of genetic and epigenetic changes.


One of the limitations of this study was small sample size and narrow cut-off value for diagnosis and differentiation of HCC between the studied groups, so further studies should be replicated at a multicentric study level with large sample size. Also, follow-up of serum Talin levels after treatment of HCC by the available different treatment modalities could add to the strength of its diagnostic and prognostic performance as a new HCC tumor marker.


In conclusion, the present study has shown that serum Talin-1 is significantly increased in HCC patients and has significantly different serum levels among HCC patients in comparison to cirrhotic patients and controls. Talin-1 is significantly related to tumor progression in HCC patients as it is closely related to the BCLC staging system, portal vein invasion, and tumor size. Therefore Talin-1 may be considered as a useful biomarker for diagnosis as well as predicting metastatic potential and vascular invasion of HCC. Serum Talin-1 could be added to AFP as a serological biomarker with higher sensitivity in the detection of HCC. The usefulness of serum Talin-1 testing alone for the population at risk should be further investigated on considerably large sample size to validate its use.

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We are indebted to nursing staff at Hepatobiliary Unit and outpatients’ clinic of Alexandria Main University Hospital, Alexandria, Egypt, for helping in collecting serum samples.



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Authors and Affiliations



EI, designed, conceived the idea of the study, and supervised the study. HN, collection of data, prepared the scientific contents, and drafted the article. DM, interpretation of radiological findings and reviewing of the article. ET, interpretation of data, serum sample analysis, and reviewing of the article. MT, participated in designing the study methodology, shared in data collection, supervised the study, and drafted the article. The authors reviewed and approved the final manuscript.

Corresponding author

Correspondence to Marwa M. R. Tawfik.

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The study protocol was approved by the research review committee of the Alexandria Faculty of Medicine and was conformed to the 1975 Declaration of Helsinki. Informed consent was obtained from each subject included in the study.

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The authors approved the publication process conducted by the corresponding author.

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The authors declare that they have no competing interests.

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Ibrahim, E.S.H., Naguib, H., Emara, D.M. et al. Assessment of serum Talin-1 in liver cirrhosis and hepatocellular carcinoma. Egypt Liver Journal 12, 19 (2022).

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