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Ma W, Ge Q, Guan Y, Zhang L, Huang L, Chen L, Xu W, Meng J, Yang G, Liang C. Integrated analysis of histone modification features in clear cell renal cancer for risk stratification and therapeutic prediction. Transl Oncol 2024; 47:102042. [PMID: 38924847 PMCID: PMC11259817 DOI: 10.1016/j.tranon.2024.102042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/24/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is a common urological malignancy that is involved in tumor genesis and development. However, few studies have focused on the predictive role of the global histone modification status in ccRCC. A total of 621 patients with complete transcript information and corresponding clinical profiles were obtained from TCGA-KIRC, GSE22541, and EMTAB3267 cohorts. A total of 122 histone modification relevant pathways were derived from MSigDB, and their activation status was quantified using GSVA. Differentially expressed genes (DEGs) were identified and filtrated using univariate Cox regression analysis. The signature was built relied on the least absolute shrinkage and selection operator (LASSO) regression analysis, and evaluated from survival difference, chemotherapy response, and activated pathways. A novel nomogram was established to quantify the probability of death in different patients. Seven risky and fifty-eight protective genes were used in LASSO analysis, and six genes were used to build the histone modification gene (HiMG) signature, which showed significant independent prognostic potential in all three cohorts. The nomogram showed acceptable incremental predictions. CKS2 (p = 0.004) and PD1 (p = 0.002) expression were significantly higher in grade 3 ccRCC than in grades 1-2. CKS2 siRNA in renal cancer cells caused reductions in cellular proliferation, migration, and invasion. Patients with low HiMG may be potential responders to rapamycin, erlotinib and FH535, while AZD6482 and CHIR-99,021 may be more suitable for patients with high HiMG levels. ccRCC histone modification distribution and a clinical signature for prognosis prediction, clinical decision making, and molecular mechanism exploration, were established for risk stratification and personalized treatments.
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Affiliation(s)
- Wenming Ma
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Qintao Ge
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Yu Guan
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Li Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Liqun Huang
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, PR China
| | - Lei Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Wenlong Xu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China
| | - Jialin Meng
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China.
| | - Guosheng Yang
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, PR China.
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; Institute of Urology, Anhui Medical University, Hefei, 230022, PR China; Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei, 230022, PR China.
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Jurišić V. Investigation of NK cell function against two target hematological cell line using radioactive chromium assay. Appl Radiat Isot 2024; 206:111251. [PMID: 38422944 DOI: 10.1016/j.apradiso.2024.111251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 02/05/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
NK (Natural killer) cells are a special population of peripheral blood lymphocytes that kill virus-infected cells as well as tumor cells. For testing NK cell function, the classic gold standard assay has been used for a long time, determining the activity from target tumor cells using radioactive chromium in cell cultures for 4h. In this study two hematological cell lines K562 and MDS where used and target and results showed different sensitivity to killing by NK cells separated from healthy volunteers. Results have been shown that MDS release significantly more radioactive chromium indicating higher degree of necrosis during cell culture. In addition, K562 cell line is better target for NK killing in all different E:T ratio in comparison to MDS cell line previously described. Based on this, it is suggested that K562 cells be continues used in the future as better target for investigation NK killing.
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Affiliation(s)
- Vladimir Jurišić
- University of Kragujevac, Faculty of Medical Sciences, Kragujevac, Serbia.
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Hu X, Zhang J, Shao X, Luo E, Yu L. DAPT inhibits the chondrogenesis of human umbilical cord mesenchymal stem cells. Open Life Sci 2015. [DOI: 10.1515/biol-2015-0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractNotch signaling plays a key role in cell
proliferation and differentiation, and is important
in several biological processes, but its role in the
chondrogenesis of human umbilical cord mesenchymal
stem cells (UC-MSCs) is still unknown. N-[N-(3,5-
difluorophenacetyl-L-alanyl)]-(S)-phenylglycinet-butyl
ester (DAPT) is the inhibitor of Notch pathway. The aim
of this study is to investgate the influence of DAPT on
the chondrogenesis of UC-MSCs. In our study, UC-MSCs
were isolated from human umbilical cord and their
characteristics were identified. The UC-MSCs were
induced to differentiate into chondrocytes in vitro and
treated with 5 μM DAPT. Glycosaminoglycan (GAG) and
collagen type II (COL-2A1) were analyzed qualitatively and
quantitatively. The gene expression of Notch-1, Hes-1, GAG
and COL-2A1 were analyzed by quantitative polymerase
chain reaction (qPCR). The UC-MSCs separated from
human umbilical cord, followed the characteristics of
Mesenchymal Stem Cells (MSCs). The gene expression of
Notch-1 and Hes-1 decreased after chondrogenic induction
but the percentage in G1 period and the content of GAG
and COL-2A1 increased. The expression of all tested Notch
signaling and proliferation genes declined when 5 μM
DAPT was added, also the content of GAG and COL-2A1
also decreased. Our study revealed that Notch signaling
exists in UC-MSCs and it may remain the proliferative
activity of UC-MSCs. Once the chondrogenesis begins,
Notch signaling strength decline evidently. DAPT inhibits
the chondrogenesis of UC-MSCs.
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Affiliation(s)
- Xiaoke Hu
- 1Department of Biochemistry, Medical School of Jinan University, Guangzhou, 510632, Guangdong Province, People’s Republic of China
| | - Jiawen Zhang
- 1Department of Biochemistry, Medical School of Jinan University, Guangzhou, 510632, Guangdong Province, People’s Republic of China
| | - Xinxin Shao
- 1Department of Biochemistry, Medical School of Jinan University, Guangzhou, 510632, Guangdong Province, People’s Republic of China
| | - Ermei Luo
- 1Department of Biochemistry, Medical School of Jinan University, Guangzhou, 510632, Guangdong Province, People’s Republic of China
| | - Li Yu
- 1Department of Biochemistry, Medical School of Jinan University, Guangzhou, 510632, Guangdong Province, People’s Republic of China
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The study of hypermethylation in blood leukocytes of irradiated parents and their children. Open Life Sci 2014. [DOI: 10.2478/s11535-014-0333-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AbstractBackground: Accumulation of evidence about the epigenetic regulation of genome function suggests the necessity to explore new aspects of the genotoxic action of radiation on the human body. Methodology: A methylation-sensitive PCR assay was used to analyze promoter methylation of p16/CDKN2A, p14/ARF, RASSF1A and GSTP1 genes in blood leukocytes from 103 unirradiated volunteers and 104 irradiated subjects (83 Chernobyl Nuclear Power Plant liquidators and 21 nuclear specialists). Additionally, 21 families whose fathers were nuclear specialists were examined. Results: A significantly elevated frequency of individuals with abnormal methylation of p16/CDKN2A and GSTP1 genes was revealed in the exposed group compared to the control group (p = 0.0097 and p = 0.005, respectively). The occurrence of promoter methylation of RASSF1A gene significantly correlated with aging both in the control group (r = 0, 213; p = 0.006) and in the exposed individuals (r = 0, 212; p = 0,031). No methylated genes were found in the offspring of control families. Conclusion: Our study showed for the fist time that prolonged radiation exposure at low and medium doses is associated with hypermethylation of genes involved in the basic protective functions of cells; an effect that is persistent in blood leukocytes for significant periods after irradiation.
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Bogdanović G, Jakimov D, Stojiljkovic B, Jurisić V. The cell growth, morphology and immunocytochemistry of novel cell line established from a bone marrow of the patient with therapy-related myelodysplastic syndrome, entitled PC-MDS. Med Oncol 2007; 24:419-24. [PMID: 17917092 DOI: 10.1007/s12032-007-0031-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Revised: 11/30/1999] [Accepted: 05/01/2007] [Indexed: 11/30/2022]
Abstract
We report on cell growth, morphology, and immunocytochemistry of the first human cell line, PC-MDS, derived from a bone marrow of a patient with therapy-related myelodysplastic syndrome who had no overt leukemia post-MDS phase. This cell population consisted of fast-growing mononuclear cells. Standard cytochemistry methods for detection of MPO, lipids, glycogen and ANAE gave results as follows: MPO and SBB negative while PAS and ANAE positive. Positive cytochemical staining and immunophenotype analyses indicated that PC-MDS cells have some characteristics of the early myeloid precursor cell. As the first t-MDS derived cell line it could be a new tool in evaluation of complex biology of MDS and also serves as a model for diverse in-vitro research.
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