1
|
Mansour E, Abd-Rabou AA, El-Atawy MA, Ahmed HA, El-Farargy AF, Abd El-Mawgoud HK. Induction of breast cancer cell apoptosis by novel thiouracil-fused heterocyclic compounds through boosting of Bax/Bcl-2 ratio and DFT study. Bioorg Chem 2024; 146:107292. [PMID: 38555798 DOI: 10.1016/j.bioorg.2024.107292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 04/02/2024]
Abstract
Breast cancer is a common public health disease causing mortality worldwide. Thus, providing novel chemotherapies that tackle breast cancer is of great interest. In this investigation, novel pyrido[2,3-d]pyrimidine derivatives 3,4,(6a-c),(8a,b),9-20 were synthesized and characterized using a variety of spectrum analyses. The geometric and thermal parameters of the novel thiouracil derivatives 3,4,6a,(8a,b),11,12,17,18, 19 were measured using density functional theory (DFT) via DFT/B3LYP/6-31 + G(d,p) basis set. All synthesized compounds were evaluated by MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide) method using MCF-7 and MDA-MB-231 breast cancerous cells, compound 17 had the maximum anticancer activity against both breast cancerous cells, recording the lowest half-maximal inhibitory concentration (IC50) values (56.712 μg/mL for MCF-7 cells and 48.743 μg/mL for MDA-MB-231 cells). The results were confirmed in terms of the intrinsic mechanism of apoptosis, where compound 17 had the highest percentage in the case of both cancer cells and recorded Bax (Bcl-2 associated X)/Bcl-2 (B-cell lymphoma 2) ratio 17.5 and 96.667 for MCF-7 and MDA-MB-231 cells, while compound 19 came after 17 in the ability for induction of apoptosis, where the Bax/Bcl-2 ratio was 15.789 and 44.273 for both cancerous cells, respectively. Also, compound 11 recorded a high Bax/Bcl-2 ratio for both cells. The safety of the synthesized compounds was applied on normal WI-38 cells, showing minimum cytotoxic effect with undetectable IC50. Compounds 17, 11, and 19 recorded a significant increase of p53 upregulated modulator of apoptosis (PUMA) expression levels in the cancerous cells. The DFT method was also used to establish a connection between the experimentally determined values of the present investigated compounds and their predicted quantum chemical parameters. It was concluded that Compounds 17, 11, and 19 had anti-breast cancer potential through the induction of apoptotic Bax/Bcl-2 and PUMA expression levels.
Collapse
Affiliation(s)
- Eman Mansour
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Ahmed A Abd-Rabou
- Hormones Department, Medical Research and Clinical Studies Institute, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed A El-Atawy
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Hoda A Ahmed
- Chemistry Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Ahmed F El-Farargy
- Chemistry Department, Faculty of Science, Zagazig University, Sharqia, Egypt
| | - Heba K Abd El-Mawgoud
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt.
| |
Collapse
|
2
|
Yu Q, Li J, Cui M, Mei C, He Q, Du X. 6-Gingerol attenuates hepatic ischemia/reperfusion injury through regulating MKP5-mediated P38/JNK pathway. Sci Rep 2024; 14:7747. [PMID: 38565569 PMCID: PMC10987508 DOI: 10.1038/s41598-024-58392-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/28/2024] [Indexed: 04/04/2024] Open
Abstract
6-Gingerol, the main bioactive compound of ginger, has antioxidant, anti-inflammatory, anti-cancer and neuroprotective effects. However, it is unclear whether 6-Gingerol has protective effects against hepatic ischemia/reperfusion (I/R) injury. In this study, the mouse liver I/R injury model and the mouse AML12 cell hypoxia/reoxygenation (H/R) model were established by pretreatment with 6-Gingerol at different concentrations to explore the potential effects of 6-Gingerol. Serum transaminase levels, liver necrotic area, cell viability, inflammatory response, and cell apoptosis were used to assess the effect of 6-Gingerol on hepatic I/R or cell H/R injury. Quantitative polymerase chain reaction (qPCR) and Western blotting were used to detect the mRNA and protein expression. The results show that 6-Gingerol decreased serum alanine aminotransferase (ALT), aspartate aminotransferase (AST) levels, liver necrosis, inflammatory cytokines IL-1β, IL-6, MCP-1, TNF-α expression, Ly6g+ inflammatory cell infiltration, protein phosphorylation of NF-κB signaling pathway, Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) positive cells, cell apoptosis rate, the protein expression of pro-apoptotic protein BAX and C-Caspase3, increased cell viability, and expression of anti-apoptotic protein BCL-2. Moreover, 6-Gingerol could increase the mRNA and protein expression of mitogen activated protein kinase phosphatase 5 (MKP5) and inhibit the activation of P38/JNK signaling pathway. In MKP5 knockout (KO) mice, the protective effect of 6-gingerol and the inhibition of P38/JNK pathway were significantly weakened. Therefore, our results suggest that 6-Gingerol exerts anti-inflammatory and anti-apoptotic effects to attenuate hepatic I/R injury by regulating the MKP5-mediated P38/JNK signaling pathway.
Collapse
Affiliation(s)
- Qiwen Yu
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiye Li
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Mengwei Cui
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chaopeng Mei
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Qianqian He
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiaoxiao Du
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, 450052, Henan, China.
| |
Collapse
|
3
|
Zhao Y, He J, Liu X, Yi C, Sun L, Zhu H. Construction and validation of a novel tumor necrosis factor-related apoptosis-inducing ligand mutant MuR5S4-TR. Asia Pac J Clin Oncol 2024; 20:210-219. [PMID: 36658682 DOI: 10.1111/ajco.13926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 09/06/2022] [Accepted: 12/26/2022] [Indexed: 01/21/2023]
Abstract
AIM Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) can selectively kill tumor cells but has no significant effect on normal cells. However, the use of TRAIL is limited for resistance by more than 50% of the tumor cell lines. It's very important to develop a more efficient form of TRAIL for cancer treatment. METHODS The N-terminal in soluble fragments (114-281aa) of TRAIL was redesigned to construct a novel TRAIL mutant-MuR5S4-TR. The Cell Counting Kit-8 method to explore the antitumor effects. The potential mechanisms were also explored. RESULTS Novel TRAIL mutant with cell-penetrating peptides (CPP) like and Second mitochondria-derived activator of caspases (Smac) like structure-MuR5S4-TR was successfully constructed. The prokaryotic expression system was successfully built, and the MuR5S4-TR was purified and reconfirmed by western blot. MuR5S4-TR could enhance the antitumor effects of TRAIL in most of the cancer cell lines significantly, NCI-H460 lung cancer cell line, for instance. After MuR5S4-TR treatment, the expressions of death receptor 4 (DR4), DR5, Caspase-8, and cleaved Caspase-3 were remarkably increased, however, there was no significant difference in X-linked inhibitor of apoptosis expression. CONCLUSION We constructed a novel TRAIL mutant with CPP-like and Smac-like structure-MuR5S4-TR. The MuR5S4-TR showed significantly stronger antitumor effects than TRAIL in many tumor cell lines. The MuR5S4-TR showed strong antitumor effects both in vitro and in vivo. This preliminary study implies that MuR5S4-TR may be a more efficient form of TRAIL for cancer therapy.
Collapse
Affiliation(s)
- Yaqin Zhao
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jianping He
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xia Liu
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Cheng Yi
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Sun
- Department of Osteoporosis, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Hong Zhu
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
4
|
Montes-Gómez AE, Tait SWG. Getting more bang for their buck: BCL2 inhibitors boost dendritic-cell function to enhance anti-cancer immune surveillance. J Transl Med 2024; 22:317. [PMID: 38549077 PMCID: PMC10979560 DOI: 10.1186/s12967-024-04961-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/07/2024] [Indexed: 04/01/2024] Open
Abstract
The anti-apoptotic BCL-2 protein family regulates cancer cell survival, thus it represents an important therapeutic target. Indeed, a drug class, called BH3-mimetics, have been developed to directly target BCL2 proteins and promote cancer cell death. Conventional wisdom suggests that the primary anti-cancer effect of BCL-2 inhibition is through induction of cancer cell death. However, a recent study by Zhao and colleagues describes that BCL-2 inhibition also enhances the function of classical dendritic cells, unleashing their role in immunosurveillance, promoting T cell immunity and tumour regression. Thus, inhibiting anti-apoptotic BCL-2 function may have a multi-pronged anti-tumour action.
Collapse
Affiliation(s)
- Alfredo E Montes-Gómez
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK.
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK.
| | - Stephen W G Tait
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK.
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK.
| |
Collapse
|
5
|
Wang K, Xu Y, Huang H, Peng D, Chen J, Li P, Du B. Porcupine quills keratin peptides induces G0/G1 cell cycle arrest and apoptosis via p53/p21 pathway and caspase cascade reaction in MCF-7 breast cancer cells. J Sci Food Agric 2024; 104:1741-1755. [PMID: 37862230 DOI: 10.1002/jsfa.13065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 09/29/2023] [Accepted: 10/20/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Porcupine quills, a by-product of porcupine pork, are rich in keratin, which is an excellent source of bioactive peptides. The objective of this study was to investigate the underlying mechanism of anti-proliferation effect of porcupine quills keratin peptides (PQKPs) on MCF-7 cells. RESULTS Results showed that PQKPs induced MCF-7 cells apoptosis by significantly decreasing the secretion level of anti-apoptosis protein Bcl-2 and increasing the secretion levels of pro-apoptosis proteins Bax, cytochrome c, caspase 9, caspase 3 and PARP. PQKPs also arrested the cell cycle at G0/G1 phase via remarkably reducing the protein levels of CDK4 and enhancing the protein levels of p53 and p21. High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) analysis identified nine peptides with molecular weights less than 1000 Da in PQKPs. Molecular docking results showed that TPGPPT and KGPAC identified from PQKPs could bind with p53 mutant and Bcl-2 protein by conventional hydrogen bonds, carbon hydrogen bonds and van der Waals force. Furthermore, the anti-proliferation impact of synthesized peptides (TPGPPT and KGPAC) was shown in MCF-7 cells. CONCLUSION These findings indicated that PQKPs suppressed the proliferation of MCF-7 breast cancer cells by triggering apoptosis and G0/G1 cell cycle arrest. Moreover, the outcome of this study will bring fresh insights into the production and application of animal byproducts. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Kun Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yanan Xu
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Haozhang Huang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Dong Peng
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Jianping Chen
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
| | - Pan Li
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Bing Du
- College of Food Science, South China Agricultural University, Guangzhou, China
| |
Collapse
|
6
|
Yu Q, Yang Y, Xu T, Cai Y, Yang Z, Yuan F. Palmitoleic acid protects microglia from palmitate-induced neurotoxicity in vitro. PLoS One 2024; 19:e0297031. [PMID: 38241239 PMCID: PMC10798504 DOI: 10.1371/journal.pone.0297031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/26/2023] [Indexed: 01/21/2024] Open
Abstract
Although palmitoleic acid (POA) is a lipokine with beneficial effects on obesity and is produced as a byproduct from the manufacture of prescription omega-3 fatty acids, its role in nervous system inflammation is still unknown. This study aims to examine the mechanisms and protective effects of POA against palmitic acid (PA)-induced microglial death. PA-induced microglial death was used as a model for POA intervention. Various inhibitors were employed to suppress potential routes of PA entry into the cell. Immunofluorescence staining and Western blotting were conducted to elucidate the protective pathways involved. The results suggest POA has the potential to eliminate PA-induced lactate dehydrogenase (LDH) release, which decreases the overall number of propidium iodide (PI)-positive cells compared with control. Moreover, POA has the potential to significantly increase lipid droplets (LDs) in the cytoplasm, without causing any lysosomal damage. POA inhibited both canonical and non-canonical gasdermin D (GSDMD)-mediated pyroptosis and gasdermin E (GSDME)-mediated pyroptosis, which PA typically induces. Additionally, POA inhibited the endoplasmic reticulum (ER) stress and apoptosis-related proteins induced by PA. Based on the findings, POA can exert a protective effect on microglial death induced by PA via pathways related to pyroptosis, apoptosis, ER stress, and LDs.
Collapse
Affiliation(s)
- Qingting Yu
- Department of Pharmacy, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Yanzhuo Yang
- Department of Pharmacy, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Ting Xu
- Department of Pharmacy, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | | | - Zuisu Yang
- Department of Pharmacy, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Falei Yuan
- Department of Pharmacy, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| |
Collapse
|
7
|
Davidovich P, Higgins CA, Najda Z, Longley DB, Martin SJ. cFLIP L acts as a suppressor of TRAIL- and Fas-initiated inflammation by inhibiting assembly of caspase-8/FADD/RIPK1 NF-κB-activating complexes. Cell Rep 2023; 42:113476. [PMID: 37988267 DOI: 10.1016/j.celrep.2023.113476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 08/16/2023] [Accepted: 11/03/2023] [Indexed: 11/23/2023] Open
Abstract
TRAIL and FasL are potent inducers of apoptosis but can also promote inflammation through assembly of cytoplasmic caspase-8/FADD/RIPK1 (FADDosome) complexes, wherein caspase-8 acts as a scaffold to drive FADD/RIPK1-mediated nuclear factor κB (NF-κB) activation. cFLIP is also recruited to FADDosomes and restricts caspase-8 activity and apoptosis, but whether cFLIP also regulates death receptor-initiated inflammation is unclear. Here, we show that silencing or deletion of cFLIP leads to robustly enhanced Fas-, TRAIL-, or TLR3-induced inflammatory cytokine production, which can be uncoupled from the effects of cFLIP on caspase-8 activation and apoptosis. Mechanistically, cFLIPL suppresses Fas- or TRAIL-initiated NF-κB activation through inhibiting the assembly of caspase-8/FADD/RIPK1 FADDosome complexes, due to the low affinity of cFLIPL for FADD. Consequently, increased cFLIPL occupancy of FADDosomes diminishes recruitment of FADD/RIPK1 to caspase-8, thereby suppressing NF-κB activation and inflammatory cytokine production downstream. Thus, cFLIP acts as a dual suppressor of apoptosis and inflammation via distinct modes of action.
Collapse
Affiliation(s)
- Pavel Davidovich
- Molecular Cell Biology Laboratory, Department of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
| | - Catherine A Higgins
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, UK
| | - Zaneta Najda
- Molecular Cell Biology Laboratory, Department of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
| | - Daniel B Longley
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, UK
| | - Seamus J Martin
- Molecular Cell Biology Laboratory, Department of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland.
| |
Collapse
|
8
|
Li J, Huang YQ, Zi J, Song CH, Ge Z. [Synergistic effect of azacitidine with homoharringtonine by activating the c-MYC/DDIT3/PUMA axis in acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:1001-1009. [PMID: 38503523 PMCID: PMC10834876 DOI: 10.3760/cma.j.issn.0253-2727.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Indexed: 03/21/2024]
Abstract
Objective: This study aimed to explore the synergistic effect and underlying mechanism of azacitidine (AZA) in combination with homoharringtonine (HHT) in acute myeloid leukemia (AML) . Methods: The synergistic effects of AZA and HHT were examined by cell proliferation, apoptosis, and colony formation assays. The synergistic effects were calculated using the combination index (CI) , and the underlying mechanisms were explored using RNA sequencing, pathway inhibitors, and gene knockdown approaches. Results: Compared with the single-drug controls, AZA and HHT combination significantly induced cell proliferation arrest and showed a synergistic effect with CI < 0.9 in AML cells. In the combination group versus the single-drug controls, colony formation was significantly decreased, whereas apoptosis was significantly increased in U937 (P<0.001) and MV4-11 (P<0.001) cells. AZA and HHT combination activated the integrated stress response (ISR) signaling pathway and induced DDIT3-PUMA-dependent apoptosis in cells. Furthermore, it remarkably downregulated the expression of c-MYC. The combination also activated c-MYC/DDIT3/PUMA-mediated ISR signaling to induce synergy on apoptosis. The synergy of AZA+HHT on apoptosis was induced by activating c-MYC/DDIT3/PUMA-mediated ISR signaling. Conclusion: The combination of AZA and HHT exerts synergistic anti-AML effects by inhibiting cellular proliferation and promoting apoptosis through activation of the ISR signaling pathway via the c-MYC/DDIT3/PUMA axis.
Collapse
Affiliation(s)
- J Li
- Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, Nanjing 210009, China
| | - Y Q Huang
- Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, Nanjing 210009, China
| | - J Zi
- Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, Nanjing 210009, China
| | - C H Song
- Pennysvinia State University, College of Medicine and Hershey Medical Center, Hershey, PA 17033, USA Division of Hematology, The Ohio State University Wexner Medical Center and The James Cancer Hospital, Columbus, OH 43210, USA
| | - Z Ge
- Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, Nanjing 210009, China
| |
Collapse
|
9
|
Rajabathar JR, Al-Lohedan H, Arokiyaraj S, Mohammed F, Al-Dhayan DM, Faqihi NA, Al-Saigh H. Herbal Melanin Inhibits Real-Time Cell Proliferation, Downregulates Anti-Apoptotic Proteins and Upregulates Pro-Apoptotic p53 Expression in MDA-MB-231 and HCT-116 Cancer Cell Lines. Medicina (Kaunas) 2023; 59:2061. [PMID: 38138165 PMCID: PMC10744400 DOI: 10.3390/medicina59122061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: Cancer is the second-most-important deadly disease in the world, leading to severe socioeconomic consequences and posing a public threat. Consequently, breast and colorectal cancers are significant cancer types that affect women and men more commonly, respectively. Treatment failure or recurrent diseases frequently occur due to resistance, in addition to the side effects of the currently available anticancer agents. Therefore, in this study, herbal melanin anticancer activity was investigated against human breast adenocarcinoma (MDA-MB-231) and human colorectal (HCT 116) cell proliferation and the expression of downregulated anti-apoptotic proteins and upregulated pro-apoptotic p53. Materials and Methods: MDA-MB-231 and HCT 116 cells were monitored for their real-time proliferation properties using Xcelligence. Herbal melanin of various concentrations significantly inhibited MDA-MB-231 and HCT 116 cell proliferation. Then, the expression of proapoptotic and anti-apoptotic proteins such as p53, Bcl-2 and Bcl-xl was studied using Western blotting. Results: The Bcl-2 and Bcl-xl expressions were downregulated, while the p53 expression was upregulated after treatment with herbal melanin. Similarly, the expression of apoptotic proteins such as Bcl-2, Bcl-xl, XIAP, Survivin, Bid, Bax, p53, Cytochrome C, PARP genes and mRNA was studied after herbal melanin treatment using real-time PCR, which revealed the downregulation of Bcl-2, Bcl-xl, XIAP and Survivin and the upregulation of Bid, Bax, p53, Cytochrome C and PARP apoptotic protein expression. Also, caspase 3 and 9 expressions were monitored after the treatment with herbal melanin, which revealed the upregulation of both the MDA-MB-231 and HCT 116 cell types. Conclusions: Overall, herbal melanin can be used as an alternative anticancer agent against the MDA-MB-231 and HCT 116 cell types.
Collapse
Affiliation(s)
- Jothi Ramalingam Rajabathar
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hamad Al-Lohedan
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Selvaraj Arokiyaraj
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
| | - Fathima Mohammed
- College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
| | - Dhaifallah M. Al-Dhayan
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Norah A. Faqihi
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hassan Al-Saigh
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| |
Collapse
|
10
|
Han Z, Li Z, Raveendran R, Farazi S, Cao C, Chapman R, Stenzel MH. Peptide-Conjugated Micelles Make Effective Mimics of the TRAIL Protein for Driving Apoptosis in Colon Cancer. Biomacromolecules 2023; 24:5046-5057. [PMID: 37812059 DOI: 10.1021/acs.biomac.3c00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) drives apoptosis selectively in cancer cells by clustering death receptors (DR4 and DR5). While it has excellent in vitro selectivity and toxicity, the TRAIL protein has a very low circulation half-life in vivo, which has hampered clinical development. Here, we developed core-cross-linked micelles that present multiple copies of a TRAIL-mimicking peptide at its surface. These micelles successfully induce apoptosis in a colon cancer cell line (COLO205) via DR4/5 clustering. Micelles with a peptide density of 15% (roughly 1 peptide/45 nm2) displayed the strongest activity with an IC50 value of 0.8 μM (relative to peptide), demonstrating that the precise spatial arrangement of ligands imparted by a protein such as a TRAIL may not be necessary for DR4/5/signaling and that a statistical network of monomeric ligands may suffice. As micelles have long circulation half-lives, we propose that this could provide a potential alternative drug to TRAIL and stimulate the use of micelles in other membrane receptor clustering networks.
Collapse
Affiliation(s)
- Zifei Han
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Zihao Li
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Radhika Raveendran
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Shegufta Farazi
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Cheng Cao
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Robert Chapman
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Martina H Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| |
Collapse
|
11
|
Yu X, Luo Y, Yang L, Duan X. Plasma metabonomic study on the effect of Para‑hydroxybenzaldehyde intervention in a rat model of transient focal cerebral ischemia. Mol Med Rep 2023; 28:224. [PMID: 37800608 PMCID: PMC10577806 DOI: 10.3892/mmr.2023.13111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 06/28/2023] [Indexed: 10/07/2023] Open
Abstract
Gastrodia elata Blume has been widely used to treat various central and peripheral nerve diseases, and Para‑hydroxybenzaldehyde (PHBA) is one of the indicated components suggested to provide a neuroprotective effect. In our previous, it was shown that PHBA protected mitochondria against cerebral ischemia‑reperfusion (I/R) injury in rats. In the present study, how PHBA regulated the metabolic mechanism in blood following cerebral I/R was assessed to identify an effective therapeutic target for the prevention and treatment of ischemic stroke (IS). First, a rat model of cerebral ischemia‑reperfusion injury was established via middle cerebral artery occlusion/reperfusion (MCAO/R). The therapeutic effect of PHBA on brain I/R was evaluated by assessing the neurological function score, triphenyl tetrazolium chloride, hematoxylin and eosin, and Nissl staining. Next, a non‑targeted metabolomic based on high‑performance liquid chromatography quadrupole time‑of‑flight mass spectrometry was established to identify differential metabolites. Finally, a targeted metabolic spectrum was analyzed and the potential therapeutic targets were verified by Western blotting. The results showed that the neurological function score, cerebral infarction area, hippocampal morphology, and the number of neurons in the PHBA group were significantly improved compared with the model group. Metabonomic analysis showed that 13 different metabolites were identified between the model and PHBA group, which may be involved in the 'tricarboxylic acid cycle', 'glutathione metabolism', and 'mutual transformation of pentose and glucuronates', amongst others. Among these, the levels of the most significant differential metabolite, dGMP, decreased significantly following PHBA treatment. Western blotting was used to verify the expression of membrane‑associated guanosine kinase PSD‑95 and the subunit of glutamate AMPA receptor GluA1, which significantly increased after PHBA treatment. In addition, it was also found that PHBA increased the expression of the light chain‑3 protein and autophagy effector protein 1, whilst the expression of sequestosome‑1 decreased, indicating that PHBA promoted autophagy. Similarly, in TUNEL staining and detection of apoptosis‑related proteins, it was found that MCAO/R upregulated the expression of Bax and cleaved‑caspase‑3 whilst downregulating the expression of Bcl‑2 and increasing the apoptosis of hippocampal neurons; PHBA reversed this situation. These results suggest that cerebral I/R causes postsynaptic dysfunction by disrupting the interaction between PSD‑95 and AMPARs, and the inhibition of the autophagy system eventually leads to the apoptosis of hippocampal neurons.
Collapse
Affiliation(s)
- Xinglin Yu
- Yunnan Key Laboratory of Dai and Yi Medicines, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Yuan Luo
- Yunnan Key Laboratory of Dai and Yi Medicines, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Liping Yang
- Yunnan Key Laboratory of Dai and Yi Medicines, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Xiaohua Duan
- Yunnan Key Laboratory of Dai and Yi Medicines, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| |
Collapse
|
12
|
Bravo Perina L, Faria Gomes IN, Alcantara Pelloso AR, Silva VAO, Rebolho Batista Arantes LM, Eliseo Melendez M. Combined effect of the pro-apoptotic rhTRAIL protein and HSV-1 virus in head and neck cancer cell lines. Sci Rep 2023; 13:18023. [PMID: 37865660 PMCID: PMC10590400 DOI: 10.1038/s41598-023-44888-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 10/13/2023] [Indexed: 10/23/2023] Open
Abstract
Knowledge on the molecular and clinical characteristics of head and neck squamous cell carcinoma (HNSCC) is vast. However, an effective therapy that increases the life expectancy of these patients, with a 5-year overall survival of 50%, is still unknown. Here we evaluated the combined effect of the pro-apoptotic protein rhTRAIL with the replication-competent wild-type HSV-1 virus in head and neck cancer cell lines. We observed a difference in the modulation profile of proteins related to apoptotic pathways in the studied cell lines. The HCB289 exhibited caspase-9 activation in the presence of the HSV-1 virus, while the UD-SCC-2 exhibited caspase-8 activation in the presence of rhTRAIL. Both cell lines exhibited PARP activation by combining rhTRAIL and HSV-1 virus treatment. Flow cytometry analysis exhibited greater induction of late apoptosis for the HCB289 and UD-SCC-2 after the combination treatment of the HSV-1 and rhTRAIL. However, the UD-SCC-2 also presented induction of late apoptosis by the presence of rhTRAIL in monotherapy. These data suggest an enhancement of the effect of the combination treatment of the rhTRAIL and the HSV-1 on reducing viability and induction of cell death.
Collapse
Affiliation(s)
- Lucas Bravo Perina
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, 14784-400, Brazil
- Molecular Carcinogenesis Program, National Cancer Institute (INCA), Rio de Janeiro, RJ, 20230-240, Brazil
| | | | - Ana Rúbia Alcantara Pelloso
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, 14784-400, Brazil
- Molecular Carcinogenesis Program, National Cancer Institute (INCA), Rio de Janeiro, RJ, 20230-240, Brazil
| | - Viviane Aline Oliveira Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, 14784-400, Brazil
- Department of Pathology and Legal Medicine, Medical School of the Federal University of Bahia, Salvador, BA, 40026-010, Brazil
- Laboratory of Pathology and Molecular Biology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, BA, 40296-710, Brazil
| | | | - Matias Eliseo Melendez
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, 14784-400, Brazil.
- Molecular Carcinogenesis Program, National Cancer Institute (INCA), Rio de Janeiro, RJ, 20230-240, Brazil.
| |
Collapse
|
13
|
Sha B, Sun Y, Zhao S, Li M, Huang W, Li Z, Shi J, Han X, Li P, Hu T, Chen P. USP8 inhibitor-induced DNA damage activates cell cycle arrest, apoptosis, and autophagy in esophageal squamous cell carcinoma. Cell Biol Toxicol 2023; 39:2011-2032. [PMID: 35022897 DOI: 10.1007/s10565-021-09686-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/29/2021] [Indexed: 12/16/2022]
Abstract
Increasing evidence suggests that targeting ubiquitin-specific peptidase 8 (USP8) serves as an attractive anti-cancer strategy. However, the role of USP8 inhibitor, DUB-IN-1, in esophageal squamous cell carcinoma (ESCC) cells still needs to be explored. Here, immunohistochemistry was employed to examine the expression of USP8 in ESCC tissues. Cell Counting Kit-8 (CCK-8) was used to evaluate cell proliferation ability, and propidium iodide (PI) was selected to test the effect of DUB-IN-1 on cell cycle. AnnexinV-FITC/PI staining and the activity of caspase 3 were detedcted to evaluate apoptosis. Transmission electron microscope, microtubule-associated protein 1 light-chain 3 (LC3) expression, and acridine orange (AO) staining were selected to check if there was autophagy. Comet assay and γ-H2AX immunofluorescence was used to monitor DNA damage. Rescue experiment was used to determine the key role of of p53 in cell cycle, apoptosis, and autophagy. Results revealed that the leve of USP8 was higher in ESCC tissues than that in tissues adjacent to carcinoma. DUB-IN-1, an USP8 inhibitor, caused DNA damage, led to G2/M phase block by p53-p21 axis, and triggered apoptosis by regulating the p53 target proteins including Bax, Noxa, and Puma. Besides, DUB-IN-1 could stimulate autophagy through p53-dependent adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) activation. Taken together, this study revealed the cytotoxic effects and the mechanism of DUB-IN-1, which indicated that DUB-IN-1 may be a novel inhibitor targeting USP8 that can kill ESCC cells. USP8 inhibitor, DUB-IN-1, treatment could inhibit esophageal squamous cell carcinoma cell growth and induce G2/M cell cycle arrest, apoptosis, and autophagy by DNA damage-induced p53 activation. DUB-IN-1 treatment led to G2/M cell cycle arrest by upregulating the protein level of p21 and triggered apoptosis by modulating the p53 target proteins including Bax, Noxa, and Puma. Meanwhile, DUB-IN-1 treatment stimulated protective autophagy through p53-dependent AMPK activation. Collectively, these findings suggested that DNA damage-triggered p53 activation, p53-Puma/Noxa/Bax, p53-p21, and p53-AMPK pathways were all involved in the effect of DUB-IN-1.
Collapse
Affiliation(s)
- Beibei Sha
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Yaxin Sun
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Shan Zhao
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Miaomiao Li
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Wenjing Huang
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Zheng Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, China
| | - Jianxiang Shi
- Precision Medicine Center, Henan Institute of Medical and Pharmaceutical Sciences & BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Xuefei Han
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Pei Li
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Tao Hu
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
| | - Ping Chen
- Academy of Medical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
- Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| |
Collapse
|
14
|
Qiu N, Zhang Z, Wei X, Xu C, Jia X, Wang K, Chen Y, Wang S, Su R, Cen B, Shen Y, Chen C, Liu Y, Xu X. Peritoneal Gene Transfection of Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand for Tumor Surveillance and Prophylaxis. Nano Lett 2023; 23:7859-7868. [PMID: 37433066 DOI: 10.1021/acs.nanolett.3c01568] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Peritoneal metastasis is very common in gastrointestinal, reproductive, and genitourinary tract cancers in late stages or postsurgery, causing poor prognosis, so effective and nontoxic prophylactic strategies against peritoneal metastasis are highly imperative. Herein, we demonstrate the first gene transfection as a nontoxic prophylaxis preventing peritoneal metastasis or operative metastatic dissemination. Lipopolyplexes of TNF-related-apoptosis-inducing-ligand (TRAIL) transfected peritonea and macrophages to express TRAIL for over 15 days. The expressed TRAIL selectively induced tumor cell apoptosis while exempting normal tissue, providing long-term tumor surveillance. Therefore, tumor cells inoculated in the pretransfected peritoneal cavity quickly underwent apoptosis and, thus, barely formed tumor nodules, significantly prolonging the mouse survival time compared with chemotherapy prophylaxis. Furthermore, lipopolyplex transfection showed no sign of toxicity. Therefore, this peritoneal TRAIL-transfection is an effective and safe prophylaxis, preventing peritoneal metastasis.
Collapse
Affiliation(s)
- Nasha Qiu
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China
- Zhejiang Key Laboratory of Smart Biomaterials and College of Chemical and Biological Engineering, Zhejiang Univeristy, Hangzhou 310027, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
| | - Zhen Zhang
- Zhejiang Longcharm Bio-tech Pharma Co., Ltd. Hangzhou 310027, China
| | - Xuyong Wei
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Chang Xu
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiaolong Jia
- Department of Urology, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China
| | - Kai Wang
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yunqi Chen
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Shuai Wang
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Renyi Su
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Beini Cen
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart Biomaterials and College of Chemical and Biological Engineering, Zhejiang Univeristy, Hangzhou 310027, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
| | - Yanpeng Liu
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Xiao Xu
- The Center for Integrated Oncology and Precision Medicine, Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Zhejiang University School of Medicine, Hangzhou 310058, China
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China
| |
Collapse
|
15
|
Li Q, Wang W, Duan F, Wang Y, Chen S, Shi K, Xia Y, Li X, Gao Y, Liu G. DNMT3B Alleviates Liver Steatosis Induced by Chronic Low-grade LPS via Inhibiting CIDEA Expression. Cell Mol Gastroenterol Hepatol 2023; 17:59-77. [PMID: 37703946 PMCID: PMC10665944 DOI: 10.1016/j.jcmgh.2023.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 09/02/2023] [Accepted: 09/05/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease is the most prevalent chronic liver disease and threats to human health. Gut dysbiosis caused by lipopolysaccharide (LPS) leakage has been strongly related to nonalcoholic fatty liver disease progression, although the underlying mechanisms remain unclear. METHODS Previous studies have shown that low-grade LPS administration to mice on a standard, low-fat chow diet is sufficient to induce symptoms of fatty liver. This study confirmed these findings and supported LPS as a lipid metabolism regulator in the liver. RESULTS Mechanically, LPS induced dysregulated lipid metabolism by inhibiting the expression of DNA methyltransferases 3B (DNMT3B). Genetic overexpression of DNMT3B alleviated LPS-induced lipid accumulation, whereas its knockdown increased steatosis in mice and human hepatocytes. LPS-induced lower expression of DNMT3B led to hypomethylation in promoter region of CIDEA, resulting in increased binding of SREBP-1c to its promoter and activated CIDEA expression. Hepatic interference of CIDEA reversed the effect of LPS on lipogenesis. These effects were independent of a high-fat diet or high fatty acid action. CONCLUSIONS Overall, these findings sustain the conclusion that LPS is a lipogenic factor and could be involved in hepatic steatosis progression.
Collapse
Affiliation(s)
- Qiang Li
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China; Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Anhui, China.
| | - Wenjing Wang
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Feifan Duan
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Yaju Wang
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Shuya Chen
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Kangyun Shi
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Yinyin Xia
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Xinyu Li
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China
| | - Yu Gao
- Department of Cell Biology, School of Life Science, Bengbu Medical College, Anhui, China; Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu Medical College, Bengbu, China
| | - Guoquan Liu
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Anhui, China; Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Anhui, China.
| |
Collapse
|
16
|
Ohara G, Okabe K, Toyama N, Ohta Y, Xinman S, Ichimura N, Sato K, Urata Y, Hibi H. Hyperthermia maintains death receptor expression and promotes TRAIL-induced apoptosis. J Oral Pathol Med 2023; 52:718-726. [PMID: 37317871 DOI: 10.1111/jop.13457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/22/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Tumor necrosis factor-related apoptosis-inducing ligand activates apoptotic pathways and could potentially be used in anticancer treatments. However, oral squamous cell carcinoma cells are known to be resistant to tumor necrosis factor-related apoptosis-inducing ligand-induced cell death. It has been previously reported that hyperthermia upregulates tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis in other cancers. As such, we evaluated whether hyperthermia upregulates tumor necrosis factor-related apoptosis-inducing ligand-mediated apoptosis in a tumor necrosis factor-related apoptosis-inducing ligand-resistant oral squamous cell carcinoma cell line. METHODS The oral squamous cell carcinoma cell line HSC3 was cultured and divided into hyperthermia and control groups. We investigated the antitumor effects of recombinant human tumor necrosis factor-related apoptosis-inducing ligand using cell proliferation and apoptosis assays. Additionally, we measured death receptor 4 and 5 levels, and determined death receptor ubiquitination status, as well as E3 ubiquitin ligase targeting of death receptor in both hyperthermia and control groups before recombinant human tumor necrosis factor-related apoptosis-inducing ligand administration. RESULTS Treatment with recombinant human tumor necrosis factor-related apoptosis-inducing ligand produced greater inhibitory effects in the hyperthermia group than in the control group. Moreover, death receptor protein expression in the hyperthermia group was upregulated on the cell surface (and overall), although death receptor mRNA was downregulated. The half-life of death receptor was several hours longer in the hyperthermia group; concomitantly, E3 ubiquitin ligase expression and death receptor ubiquitination were downregulated in this group. CONCLUSION Our findings suggested that hyperthermia enhances apoptotic signaling by tumor necrosis factor-related apoptosis-inducing ligand via the suppression of death receptor ubiquitination, which upregulates death receptor expression. These data suggest that the combination of hyperthermia and tumor necrosis factor-related apoptosis-inducing ligand has implications in developing a novel treatment strategy for oral squamous cell carcinoma.
Collapse
Affiliation(s)
- Go Ohara
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuto Okabe
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoto Toyama
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Oral and Maxillofacial Surgery, Iwata City Hospital, Iwata, Japan
| | - Yuya Ohta
- Department of Oral and Maxillofacial Surgery, Nagoya University Hospital, Nagoya, Japan
| | - Song Xinman
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norihisa Ichimura
- Department of Oral and Maxillofacial Surgery, Nagoya University Hospital, Nagoya, Japan
| | - Kotaro Sato
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Urata
- Department of Oral and Maxillofacial Surgery, Nagoya University Hospital, Nagoya, Japan
| | - Hideharu Hibi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Oral and Maxillofacial Surgery, Nagoya University Hospital, Nagoya, Japan
| |
Collapse
|
17
|
Jia B, Jiang Y, Yao Y, Xu Y, Wang Y, Li T. Baicalin attenuates dexamethasone-induced apoptosis of bone marrow mesenchymal stem cells by activating the hedgehog signaling pathway. Chin Med J (Engl) 2023; 136:1839-1847. [PMID: 36804262 PMCID: PMC10406080 DOI: 10.1097/cm9.0000000000002113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND Perturbations in bone marrow mesenchymal stem cell (BMSC) differentiation play an important role in steroid-induced osteonecrosis of the femoral head (SONFH). At present, studies on SONFH concentrate upon the balance within BMSC osteogenic and adipogenic differentiation. However, BMSC apoptosis as well as proliferation are important prerequisites in their differentiation. The hedgehog (HH) signaling pathway regulates bone cell apoptosis. Baicalin (BA), a well-known compound in traditional Chinese medicine, can affect the proliferation and apoptosis of numerous cell types via HH signaling. However, the potential role and mechanisms of BA on BMSCs are unclear. Thus, we aimed to explore the role of BA in dexamethasone (Dex)-induced BMSC apoptosis in this study. METHODS Primary BMSCs were treated with 10 -6 mol/L Dex alone or with 5.0 μmol/L, 10.0 μmol/L, or 50.0 μmol/L BA for 24 hours followed by co-treatment with 5.0 μmol/L, 10.0 μmol/L, or 50.0 μmol/L BA and 10 -6 mol/L Dex. Cell viability was assayed through the Cell Counting Kit-8 (CCK-8). Cell apoptosis was evaluated using Annexin V-fluorescein isothiocyanate/propidium iodide (PI) staining followed by flow cytometry. The imaging and counting, respectively, of Hochest 33342/PI-stained cells were used to assess the morphological characteristics and proportion of apoptotic cells. To quantify the apoptosis-related proteins (e.g., apoptosis regulator BAX [Bax], B-cell lymphoma 2 [Bcl-2], caspase-3, and cleaved caspase-3) and HH signaling pathway proteins, western blotting was used. A HH-signaling pathway inhibitor was used to demonstrate that BA exerts its anti-apoptotic effects via the HH signaling pathway. RESULTS The results of CCK-8, Hoechst 33342/PI-staining, and flow cytometry showed that BA did not significantly promote cell proliferation (CCK-8: 0 μmol/L, 100%; 2.5 μmol/L, 98.58%; 5.0 μmol/L, 95.18%; 10.0 μmol/L, 98.11%; 50.0 μmol/L, 99.38%, F = 2.33, P > 0.05), but it did attenuate the effect of Dex on apoptosis (Hoechst 33342/PI-staining: Dex+ 50.0 μmol/L BA, 12.27% vs. Dex, 39.27%, t = 20.62; flow cytometry: Dex + 50.0 μmol/L BA, 12.68% vs. Dex, 37.43%, t = 11.56; Both P < 0.05). The results of western blotting analysis showed that BA reversed Dex-induced apoptosis by activating the HH signaling pathway, which down-regulated the expression of Bax, cleaved-caspase 3, and suppressor of fused (SUFU) while up-regulating Bcl-2, sonic hedgehog (SHH), and zinc finger protein GLI-1 (GLI-1) expression (Bax/Bcl-2: Dex+ 50.0 μmol/L BA, 1.09 vs. Dex, 2.76, t = 35.12; cleaved caspase-3/caspase-3: Dex + 50.0 μmol/L BA, 0.38 vs . Dex, 0.73, t = 10.62; SHH: Dex + 50.0 μmol/L BA, 0.50 vs . Dex, 0.12, t = 34.01; SUFU: Dex+ 50.0 μmol/L BA, 0.75 vs . Dex, 1.19, t = 10.78; GLI-1: Dex+ 50.0 μmol/L BA, 0.40 vs . Dex, 0.11, t = 30.68. All P < 0.05). CONCLUSIONS BA antagonizes Dex-induced apoptosis of human BMSCs by activating the HH signaling pathway. It is a potential candidate for preventing SONFH.
Collapse
Affiliation(s)
- Bin Jia
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
- Medical Department, Qingdao University, Qingdao, Shandong 266071, China
| | - Yaping Jiang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Yao Yao
- Medical Department, Qingdao University, Qingdao, Shandong 266071, China
| | - Yingxing Xu
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
- Medical Department, Qingdao University, Qingdao, Shandong 266071, China
| | - Yingzhen Wang
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Tao Li
- Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| |
Collapse
|
18
|
Zhang Y, Ma J, Pei Y, Xie Z, Fu DJ, Li J. Synthesis of S-2-phenylchromane Derivatives and Evaluation of the Antiproliferative Properties as Apoptosis Inducers in Cancer Cell Lines. Anticancer Agents Med Chem 2023; 23:1848-1859. [PMID: 37139673 DOI: 10.2174/1871520623666230420100254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Cancer remains one of the major health issues globally, where chemotherapy forms the main treatment mode for different types of cancers. Due to cancer cell ability to develop resistance, decreased clinical effectiveness of anticancer drugs can occur. Therefore, the need to synthesize novel antitumor drugs remains important. OBJECTIVE The aim of our work consisted of synthesizing S-2-phenylchromane derivatives containing the tertiary amide or 1,2,3-triazole fragments with promising anticancer activity. METHODS A series of S-2-phenylchromane derivatives were synthesized and evaluated for cytotoxic activity against three selected cancer cell lines (HGC-27 human gastric carcinoma cell line, Huh-7 epithelial-like tumorigenic cells, and A549 adenocarcinomic human alveolar basal epithelial cells) using the 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) assay. Hoechst staining was used to detect the effects of S-2-phenylchromane derivatives on apoptosis. The apoptosis percentages were detected by annexin V-fluoresceine isothiocyanate/propidium iodide (Annexin V-FITC/PI) double staining assay with flow cytometry. Expression levels of apoptosis-related proteins were detected by western blot. RESULTS Cell line A549, consisting of adenocarcinomic human alveolar basal epithelial cells, displayed the highest sensitivity to the S-2-phenylchromane derivatives. Among these compounds, E2 showed the most potent antiproliferative activity against A549 cells with an IC50 value of 5.60 μM. Hoechst staining and flow cytometry analysis revealed apoptosis in A549 cells by compound E2. In addition, activation of the expression levels of caspase-3, caspase-7, and their substrate poly (ADP-ribose) polymerase (PARP) by E2 was detected by western blot. CONCLUSION In summary, results point towards compound E2, an S-2-phenylchromane derivative, as a potential lead molecule in anticancer agents for human adenocarcinomic alveolar basal cells based on the induction of apoptosis.
Collapse
Affiliation(s)
- Yunfeng Zhang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Jiale Ma
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Yujie Pei
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Zeyuan Xie
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Dong-Jun Fu
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| |
Collapse
|
19
|
Gupta A, Singh PR, Singh AP, Kumari N, Jaiswal J, Sahu N, Mishra S, Pathak J, Sinha RP. Anticancer Compounds from Cyanobacteria and their Implications in Apoptosis. Curr Protein Pept Sci 2023; 24:805-819. [PMID: 37055887 DOI: 10.2174/1389203724666230411091726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 04/15/2023]
Abstract
Cyanobacteria have been recognized as a rich source of bioactive metabolites with potential biotechnological applications in the pharmacological industry. The chemically diverse natural compounds or their analogues cause cytotoxicity. They may kill various cancer cells by inducing apoptosis or changing the activation of cell signaling, particularly involving the protein kinase-C family of enzymes, mitochondrial dysfunctions, and oxidative damage. B cell lymphoma 2 (Bcl-2) is an essential component of apoptosis and is an antiapoptotic molecule. The key apoptotic regulators associated with cancer are members of the Bcl-2 protein family, the key member of which is Bcl-2. The Bcl-2 protein is a promising target for the emergence of new anti-tumor therapies because of its critical role in controlling apoptosis. This review explores the significance of Bcl-2 in the onset of cancer; it may be used as a target for developing high-quality drug therapies to treat various tumors. In addition, a number of computational techniques were used to identify novel hit compounds that may act as inhibitors of the apoptotic protein Bcl-2, including virtual screening, toxicity prediction, and drug-likeness analysis. Twenty-three compounds were assessed as potential hits against Bcl-2, and these compounds were subjected to ADMET property prediction. Dendroamide A and Welwitindolinone A appear to be the most stable and effective drugs against Bcl-2 out of all those evaluated. This article gives an overview of the bioactive compounds produced by cyanobacteria that have anticancer properties and may be exploited to create novel anticancer medications in the future.
Collapse
Affiliation(s)
- Amit Gupta
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Prashant R Singh
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Ashish P Singh
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Neha Kumari
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Jyoti Jaiswal
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Niharika Sahu
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Sonal Mishra
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Jainendra Pathak
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Rajeshwar P Sinha
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India
- University Center for Research & Development (UCRD), Chandigarh University, Punjab, India
| |
Collapse
|
20
|
Wang G, Tian X, Liu L, Dong J. Astaxanthin Induces Apoptosis in Human Osteosarcoma MG-63 Cells. Folia Biol (Praha) 2023; 69:186-193. [PMID: 38583180 DOI: 10.14712/fb2023069050186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
We explored the mechanism of human osteosarcoma MG-63 cell apoptosis induced by asta-xanthin. The MTT assay was used to detect the effect of astaxanthin on cell viability. Morphological changes associated with apoptosis were observed after DAPI staining. Early and late stages of apoptosis were detected by flow cytometry with annexin V-FITC/PI staining. Activation of caspases-8, -9 and -3 was detected by enzyme activity in vitro. Changes in the mitochondrial membrane potential were detected by MitoCapture staining. Western blot was used to detect the cleavage of PARP, which is a caspase-3 substrate, the release of cytochrome c and Smac into the cytosol, the translocation of pro-apoptotic proteins Bax and Bak, and the expression of mitochondrial pathway-related proteins. The translocation of Bax was also detected by immunofluorescence assay. Astaxanthin significantly inhibited the viability of human osteosarcoma MG-63 cells with an IC50 value of 12.36 μg/ml. The DAPI-stained cells showed characteristic apoptotic morphological changes - cell shrinkage, cell membrane blebbing, nuclear condensation, and apoptotic body formation. Cytochrome c and Smac were released from mitochondria to the cytosol. Pro-apoptotic proteins Bax and Bak were rapidly translocated to mitochondria after six hours of astaxanthin action. Caspases-9 and -3 were activated and PARP was cleaved. The expression of anti-apoptotic proteins Bcl-2, Bcl-xL and XIAP was significantly decreased. Astaxanthin induced human osteosarcoma MG-63 cell apoptosis through the mitochondria-mediated endogenous apoptosis pathway.
Collapse
Affiliation(s)
- Guangyu Wang
- Tianjin Hospital, Trauma Upper Limb 2 Department, Tianjin, China
| | - Xu Tian
- Tianjin Hospital, Trauma Upper Limb 2 Department, Tianjin, China
| | - Lintao Liu
- Tianjin Hospital, Trauma Upper Limb 2 Department, Tianjin, China
| | - Jingming Dong
- Tianjin Hospital, Trauma Upper Limb 2 Department, Tianjin, China.
| |
Collapse
|
21
|
DING J, XING Y, CHEN Z, CHEN W, MA Z, XIE Y, ZHOU L. Qilan preparation inhibits proliferation and induces apoptosis by down-regulating microRNA-21 in human Tca8113 tongue squamous cell carcinoma cells. J TRADIT CHIN MED 2022; 42:693-700. [PMID: 36083475 PMCID: PMC9924750 DOI: 10.19852/j.cnki.jtcm.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
OBJECTIVE The aim of this study was to examine the antitumor effects of Qilan preparation on oral squamous cell carcinoma (OSCC) and to investigate its underlying mechanisms of action. METHODS Cell proliferation, cell cycle distribution and apoptosis were examined using cell counting kit-8 (CCK8) and flow cytometry (FCM). The expression of PTEN and PDCD4 were determined by western blot. Changes in miR-21 levels were quantified using TaqMan stem-loop real-time PCR. After miR-21 was transiently transfected into Tca8113 cells using Lipofectamine®3000, cell proliferation, apoptosis and miR-21 and PDCD4 expression levels were measured. RESULTS Qilan preparation inhibited Tca8113 cell growth in a dose- and time-dependent manner by inducing apoptosis and cell cycle arrest in S-phase, decreasing miR-21 levels and increasing PTEN and PDCD4 expression. MiR-21 overexpression reversed the Qilan preparation-induced suppression of cell proliferation and induction of apoptosis while also blocking the increase in PDCD4. CONCLUSIONS Our study revealed, for the first time, the ability of Qilan preparation to suppress TSCC cell growth and elucidated that Qilan preparation elicits its anti-cancer actions either the miR-21/PDCD4 or PTEN pathway.
Collapse
Affiliation(s)
- Jiamin DING
- 1 Department of Oral Mucosal Diseases, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Yifeng XING
- 2 School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350000, China
| | - Zuoliang CHEN
- 3 Department of Oral Mucosal Diseases, Xiamen Stomatological Hospital, School of Stomatology, Fujian Medical University, Xiamen 361003, China
| | - Wanlu CHEN
- 1 Department of Oral Mucosal Diseases, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Zhongxiong MA
- 1 Department of Oral Mucosal Diseases, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Yunde XIE
- 1 Department of Oral Mucosal Diseases, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Lin ZHOU
- 4 Department of Implantology, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350001, China
- ZHOU Lin, Department of Implantology, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350001, China. : +86-591-83754882
| |
Collapse
|
22
|
Wang R, Liu H, Du X, Ma Y, Tian Z, Zhang S, Shi L, Guo H, Zhang H. MicroRNA-122 overexpression promotes apoptosis and tumor suppressor gene expression induced by microcystin-leucine arginine in mouse liver. Int J Environ Health Res 2022; 32:2123-2134. [PMID: 34180736 DOI: 10.1080/09603123.2021.1946489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Microcystin-leucine arginine (MC-LR), an important hepatoxin, has the effect of promoting hepatocarcinogenesis. MicroRNA-122 (miR-122), an important tumor suppressor in liver, plays an important role in promoting cell apoptosis. Previous studies found that the expression of miR-122 was reduced after MC-LR exposure in liver. In this study, C57BL/6 mice were exposed to saline, negative control agomir, and MC-LR with or without miR-122 agomir transfection. The results indicated that MC-LR promoted the expressions of tumor suppressor genes and decreased the expressions of anti-apoptotic proteins B cell lymphoma-2 (Bcl-2) and Bcl-2-like 2 (Bcl-w), causing hepatocyte apoptosis. Under MC-LR exposure, miR-122 agomir transfection could further increase the expressions of tumor suppressor genes and the release of cytochrome-c (Cyt-c) and decrease the expressions of Bcl-2 and Bcl-w. In conclusion, miR-122 reduction can mitigate MC-LR-induced apoptosis to a certain extent, which in turn, it is likely to have contributed to MC-LR-induced hepatocarcinogenesis.
Collapse
Affiliation(s)
- Rui Wang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Haohao Liu
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Xingde Du
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Ya Ma
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Zhihui Tian
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Shiyu Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Linjia Shi
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Hongxiang Guo
- College of Life Sciences, Henan Agricultural University, Zhengzhou, Henan, P.R. China
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, P.R. China
| |
Collapse
|
23
|
Kassay N, Toldi V, Tőzsér J, Szabó A. Cigarette smoke toxin hydroquinone and misfolding pancreatic lipase variant cooperatively promote endoplasmic reticulum stress and cell death. PLoS One 2022; 17:e0269936. [PMID: 35704637 PMCID: PMC9200355 DOI: 10.1371/journal.pone.0269936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/31/2022] [Indexed: 01/07/2023] Open
Abstract
Mutation-induced protein misfolding of pancreatic secretory enzymes and consequent endoplasmic reticulum stress can cause chronic pancreatitis. A recent study revealed that cigarette smoke also increases the risk of the disease through endoplasmic reticulum stress. Here, we investigated the cumulative cellular effect of the G233E misfolding human pancreatic lipase variant and hydroquinone; a main toxic constituent of cigarette smoke, using mammalian cell lines. We found that hydroquinone reduces cell viability on a dose-dependent manner through programmed cell death, and diminishes lipase secretion without affecting its expression. Interestingly, hydroquinone decreased the viability more markedly in cells expressing the G233E lipase variant, than in cells producing wild-type lipase. The more substantial viability loss was due to increased endoplasmic reticulum stress, as demonstrated by elevated levels of X-box binding protein 1 mRNA splicing and immunoglobulin binding protein, NAD(P)H:quinone oxidoreductase 1 and C/EBP homologous protein expression. Unresolved endoplasmic reticulum stress, and especially up-regulation of the pro-apoptotic transcription factor C/EBP homologous protein were likely responsible for the increased cell death. Our observations demonstrated that the combination of hydroquinone and misfolding pancreatic lipase variant promote increased levels of endoplasmic reticulum stress and cell death, which may predispose to chronic pancreatitis.
Collapse
Affiliation(s)
- Norbert Kassay
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular, Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - Vanda Toldi
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular, Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - József Tőzsér
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - András Szabó
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
24
|
Li S, Zhuang K, He Y, Deng Y, Xi J, Chen J. Leptin relieves ischemia/reperfusion induced acute kidney injury through inhibiting apoptosis and autophagy. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2022; 47:8-17. [PMID: 35545358 PMCID: PMC10930488 DOI: 10.11817/j.issn.1672-7347.2022.210244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVES Acute kidney injury (AKI) can be caused by ischemia/reperfusion (I/R), nephrotoxin, and sepsis, with poor prognosis and high mortality. Leptin is a protein molecule that regulates the body's energy metabolism and reproductive activities via binding to its specific receptor. Leptin can inhibit cardiomyocyte apoptosis caused by I/R, but its effect on I/R kidney injury and the underlying mechanisms are still unclear. This study aims to investigate the effect and mechanisms of leptin on renal function, renal histopathology, apoptosis, and autophagy during acute I/R kidney injury. METHODS Healthy adult male mice were randomly divided into 4 groups: a sham+wild-type mice (ob/+) group, a sham+leptin gene-deficient mice (ob/ob) group, an I/R+ob/+ group, and an I/R+ob/ob group (n=8 per group). For sham operation, a longitudinal incision was made on the back of the mice to expose and separate the bilateral kidneys and renal arteries, and no subsequent treatment was performed. I/R treatment was ischemia for 30 min and reperfusion for 48 h. The levels of BUN and SCr were detected to evaluate renal function; HE staining was used to observe the pathological changes of renal tissue; TUNEL staining was used to observe cell apoptosis, and apoptosis-positive cells were counted; Western blotting was used to detect levels of apoptosis-related proteins (caspase 3, caspase 9), autophagy-related proteins [mammalian target of rapamycin (mTOR), phosphorylated mTOR (p-mTOR), LC3 I, LC3 II], mTOR-dependent signaling pathway proteins [phosphate and tension homology (PTEN), adenosine monophosphate-activated protein kinase (AMPK), protein kinase B (AKT), extracellular regulated protein kinase (ERK), phosphorylated PTEN (p-PTEN), phosphorylated AMPK (p-AMPK), phosphorylated AKT (p-AKT), phosphorylated ERK (p-ERK)]. RESULTS There was no significant difference in the levels of BUN and SCr between the sham+ob/+ group and the sham+ob/ob group (both P>0.05). The levels of BUN and SCr in the I/R+ob/+ group were significantly higher than those in the sham+ob/+ group (both P<0.05). Compared with the mice in the sham+ob/ob group or the I/R+ob/+ group, the levels of BUN and SCr in the I/R+ob/ob group were significantly increased (all P<0.05). There was no obvious damage to the renal tubules in the sham+ob/+ group and the sham+ob/ob group. Compared with sham+ob/+ group and sham+ob/ob group, both the I/R+ob/+ group and the I/R+ob/ob group had cell damage such as brush border shedding, vacuolar degeneration, and cast formation. Compared with the I/R+ob/+ group, the renal tubules of the mice in the I/R+ob/ob group were more severely damaged. The pathological score of renal tubular injury showed that the renal tubular injury was the most serious in the I/R+ob/ob group (P<0.05). Compared with the sham+ob/+ group, the protein levels of caspase 3, caspase 9, PTEN, and LC3 II were significantly up-regulated, the ratio of LC3 II to LC3 I was significantly increased, and the protein levels of p-mTOR, p-PTEN, p-AMPK, p-AKT, and p-ERK were significantly down-regulated in the I/R+ob/+ group (all P<0.05). Compared with the sham+ob/ob group, the protein levels of caspase 3, caspase 9, PTEN, and LC3 II were significantly up-regulated, and the ratio of LC3 II to LC3 I was significantly increased, while the protein levels of p-mTOR, p-PTEN, p-AMPK, p-AKT, and p-ERK were significantly down-regulated in the I/R+ob/ob group (all P<0.05). Compared with the I/R+ob/+ group, the levels of p-mTOR, p-PTEN, p-AMPK, p-AKT were more significantly down-regulated, while the levels of caspase 3, caspase 9, PTEN, and LC3 II were more significantly up-regulated, and the ratio of LC3 II to LC3 I was more significantly increase in the I/R+ob/ob group (all P<0.05). CONCLUSIONS Renal function and tubular damage, and elevated levels of apoptosis and autophagy are observed in mice kidneys after acute I/R. Leptin might relieve I/R induced AKI by inhibiting apoptosis and autophagy that through a complex network of interactions between mTOR-dependent signaling pathways.
Collapse
Affiliation(s)
- Siyao Li
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China.
| | - Kaiting Zhuang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yi He
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yunzhen Deng
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jing Xi
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Junxiang Chen
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China.
| |
Collapse
|
25
|
Liu R, Zhang S, Wan R, Deng J, Fang W. Effect of Beclin-1 gene silencing on autophagy and apoptosis of the prostatic hyperplasia epithelial cells. Clinics (Sao Paulo) 2022; 77:100076. [PMID: 36088885 PMCID: PMC9468350 DOI: 10.1016/j.clinsp.2022.100076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/06/2022] [Accepted: 06/21/2022] [Indexed: 12/09/2022] Open
Abstract
OBJECTIVES This study aims to explore the effect of silencing Beclin-1 gene on autophagy and apoptosis of Benign Prostatic Hyperplasia (BPH) (BPH-1) cells under the condition of Androgen Deprivation (AD) and Autophagy Inhibition (AI). METHODS Control group (BPH-1 group), empty carrier group (sh-RNA-BPH-1 group) and Beclin-1 silenced group (sh-Beclin1-BPH-1 group) were set. The Beclin-1 gene silencing efficiency was detected by RT-PCR and Western blot. Autophagic flux was monitored by GFP-LC3 cleavage assay and cell apoptosis was analyzed by flow cytometry. The protein expression levels of LC3, Caspase-3, PARP-1, Bcl-2, and Bax were detected by Western blot. RESULTS The transfection of sh-Beclin-1 obviously down-regulated the expression of Beclin-1 at both mRNA and protein levels. Under the conditions of AD and AI, silencing of Beclin-1 restrained the autophagy of BPH-1 cells, as evidenced by a decreased number of autophagosomes and down-regulation of LC3-II protein (p < 0.001). The results of flow cytometry showed that the apoptotic rate of sh-Beclin-1 group was elevated significantly compared to the other two groups (p < 0.01). Western blot results showed that silencing of Beclin-1 promoted 89 kd fragmentation of PARP-1 (p < 0.001) and Caspase-3 activation (p < 0.01). Moreover, silencing of Beclin-1 resulted in declined Bcl-2 and augmented Bax protein expression in BPH-1 cells (p < 0.01), which ultimately led to a decreased Bcl-2/Bax ratio. CONCLUSIONS The results indicated that the silencing of Beclin-1 gene hampered autophagy while activating apoptosis in BPH-1 cells. Thus, Beclin-1 may participate in an antagonistic relationship between autophagy and apoptosis in BPH.
Collapse
Affiliation(s)
- Rongfu Liu
- Department of Urology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China; Department of Urology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China.
| | - Song Zhang
- Department of Urology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Rui Wan
- Department of Urology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jiang Deng
- Department of Urology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Wei Fang
- Department of Urology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| |
Collapse
|
26
|
Granqvist V, Holmgren C, Larsson C. Induction of interferon-β and interferon signaling by TRAIL and Smac mimetics via caspase-8 in breast cancer cells. PLoS One 2021; 16:e0248175. [PMID: 33770100 PMCID: PMC7996988 DOI: 10.1371/journal.pone.0248175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 02/19/2021] [Indexed: 12/12/2022] Open
Abstract
Breast cancer prognosis is frequently good but a substantial number of patients suffer from relapse. The death receptor ligand TRAIL can in combination with Smac mimetics induce apoptosis in some luminal-like ER-positive breast cancer cell lines, such as CAMA-1, but not in MCF-7 cells. Here we show that TRAIL and the Smac mimetic LCL161 induce non-canonical NF-κB and IFN signaling in ER-positive MCF-7 cells and in CAMA-1 breast cancer cells when apoptosis is blocked by caspase inhibition. Levels of p52 are increased and STAT1 gets phosphorylated. STAT1 phosphorylation is induced by TRAIL alone in MCF-7 cells and is independent of non-canonical NF-κB since downregulation of NIK has no effect. The phosphorylation of STAT1 is a rather late event, appearing after 24 hours of TRAIL stimulation. It is preceded by an increase in IFNB1 mRNA levels and can be blocked by siRNA targeting the type I IFN receptor IFNAR1 and by inhibition of Janus kinases by Ruxolitinib. Moreover, downregulation of caspase-8, but not inhibition of caspase activity, blocks TRAIL-mediated STAT1 phosphorylation and induction of IFN-related genes. The data suggest that TRAIL-induced IFNB1 expression in MCF-7 cells is dependent on a non-apoptotic role of caspase-8 and leads to autocrine interferon-β signaling.
Collapse
Affiliation(s)
- Victoria Granqvist
- Lund University, Translational Cancer Research, Medicon Village, Lund, Sweden
| | - Christian Holmgren
- Lund University, Translational Cancer Research, Medicon Village, Lund, Sweden
| | - Christer Larsson
- Lund University, Translational Cancer Research, Medicon Village, Lund, Sweden
- * E-mail:
| |
Collapse
|
27
|
Mikhailova A, Valle-Casuso JC, David A, Monceaux V, Volant S, Passaes C, Elfidha A, Müller-Trutwin M, Poyet JL, Sáez-Cirión A. Antiapoptotic Clone 11-Derived Peptides Induce In Vitro Death of CD4 + T Cells Susceptible to HIV-1 Infection. J Virol 2020; 94:e00611-20. [PMID: 32350074 PMCID: PMC7343195 DOI: 10.1128/jvi.00611-20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/23/2020] [Indexed: 02/08/2023] Open
Abstract
HIV-1 successfully establishes long-term infection in its target cells despite viral cytotoxic effects. We have recently shown that cell metabolism is an important factor driving CD4+ T cell susceptibility to HIV-1 and the survival of infected cells. We show here that expression of antiapoptotic clone 11 (AAC-11), an antiapoptotic factor upregulated in many cancers, increased with progressive CD4+ T cell memory differentiation in association with the expression of cell cycle, activation, and metabolism genes and was correlated with susceptibility to HIV-1 infection. Synthetic peptides based on the LZ domain sequence of AAC-11, responsible for its interaction with molecular partners, were previously shown to be cytotoxic to cancer cells. Here, we observed that these peptides also blocked HIV-1 infection by inducing the death of HIV-1-susceptible primary CD4+ T cells across all T cell subsets. The peptides targeted metabolically active cells and had the greatest effect on effector and transitional CD4+ T cell memory subsets. Our results suggest that the AAC-11 survival pathway is potentially involved in the survival of HIV-1-infectible cells and provide proof of principle that some cellular characteristics can be targeted to eliminate the cells offering the best conditions to sustain HIV-1 replication.IMPORTANCE Although antiretroviral treatment efficiently blocks HIV multiplication, it cannot eliminate cells already carrying integrated proviruses. In the search for an HIV cure, the identification of new potential targets to selectively eliminate infected cells is of the outmost importance. We show here that peptides derived from antiapoptotic clone 11 (AAC-11), whose expression levels correlated with susceptibility to HIV-1 infection of CD4+ T cells, induced cytotoxicity in CD4+ T cells showing the highest levels of activation and metabolic activity, conditions known to favor HIV-1 infection. Accordingly, CD4+ T cells that survived the cytotoxic action of the AAC-11 peptides were resistant to HIV-1 replication. Our results identify a new potential molecular pathway to target HIV-1 infection.
Collapse
Affiliation(s)
- Anastassia Mikhailova
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
- Université Paris Diderot, Université de Paris, Paris, France
| | | | - Annie David
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Valérie Monceaux
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Stevenn Volant
- Institut Pasteur, Hub Bioinformatique et Biostatistique, C3BI, USR 3756 IP CNRS, Paris, France
| | - Caroline Passaes
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Amal Elfidha
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
- Université Paris Descartes, Université de Paris, Paris, France
| | | | - Jean-Luc Poyet
- INSERM UMRS976, Institut de Recherche Saint Louis, Hôpital Saint Louis, Paris, France
| | - Asier Sáez-Cirión
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| |
Collapse
|
28
|
Priwitaningrum DL, Jentsch J, Bansal R, Rahimian S, Storm G, Hennink WE, Prakash J. Apoptosis-inducing peptide loaded in PLGA nanoparticles induces anti-tumor effects in vivo. Int J Pharm 2020; 585:119535. [PMID: 32534162 DOI: 10.1016/j.ijpharm.2020.119535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 01/17/2023]
Abstract
Induction of apoptosis in tumor cells specifically within the complex tumor microenvironment is highly desirable to kill them efficiently and to enhance the effects of chemotherapy. Second mitochondria-derived activator of caspase (Smac) is a key pro-apoptotic pathway which can be activated with a Smac mimetic peptide. However, in vivo application of peptides is hampered by several limitations such as poor pharmacokinetics, rapid elimination, enzymatic degradation, and insufficient intracellular delivery. In this study, we developed a nanosystem to deliver a Smac peptide to tumor by passive targeting. We first synthesized a chimeric peptide that consists of the 8-mer Smac peptide and a 14-mer cell penetrating peptide (CPP) and then encapsulated the Smac-CPP into polymeric nanoparticles (Smac-CPP-NPs). In vitro, Smac-CPP-NPs were rapidly internalized by 4T1 mammary tumor cells and subsequently released Smac-CPP into the cells, as shown with fluorescence microscopy. Furthermore, Smac-CPP-NPs induced apoptosis in tumor cells, as confirmed with cell viability and caspase 3/7 assays. Interestingly, combination of Smac-CPP-NPs with doxorubicin (dox), a clinically used cytostatic drug, showed combined effects in vitro in 4T1 cells. The effect was significantly better than that of SMAC-CPP-NPs alone as well as empty nanoparticles and dox. In vivo, co-treatment with Smac-CPP-NPs and free dox reduced the tumor growth to 85%. Furthermore, the combination of Smac-CPP-NPs and free dox showed reduced proliferating tumor cells (Ki-67 staining) and increased apoptotic cells (cleaved caspase-3 staining) in tumors. In conclusion, the present study demonstrates that the intracellular delivery of Smac-mimetic peptide using nanoparticle system can be an interesting strategy to attenuate the tumor growth and to potentiate the therapeutic efficacy of chemotherapy in vivo.
Collapse
Affiliation(s)
- Dwi L Priwitaningrum
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands; Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Julian Jentsch
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Ruchi Bansal
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Sima Rahimian
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Jai Prakash
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands.
| |
Collapse
|
29
|
Trott JF, Abu Aboud O, McLaughlin B, Anderson KL, Modiano JF, Kim K, Jen KY, Senapedis W, Chang H, Landesman Y, Baloglu E, Pili R, Weiss RH. Anti-Cancer Activity of PAK4/NAMPT Inhibitor and Programmed Cell Death Protein-1 Antibody in Kidney Cancer. Kidney360 2020; 1:376-388. [PMID: 35224510 PMCID: PMC8809296 DOI: 10.34067/kid.0000282019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/12/2020] [Indexed: 06/14/2023]
Abstract
BACKGROUND Kidney cancer (or renal cell carcinoma, RCC) is the sixth most common malignancy in the United States and is increasing in incidence. Despite new therapies, including targeted therapies and immunotherapies, most RCCs are resistant to treatment. Thus, several laboratories have been evaluating new approaches to therapy, both with single agents as well as combinations. Although we have previously shown efficacy of the dual PAK4/nicotinamide phosphoribosyltransferase (NAMPT) inhibitor KPT-9274, and the immune checkpoint inhibitors (CPI) have shown utility in the clinic, there has been no evaluation of this combination either clinically or in an immunocompetent animal model of kidney cancer. METHODS In this study, we use the renal cell adenocarcinoma (RENCA) model of spontaneous murine kidney cancer. Male BALB/cJ mice were injected subcutaneously with RENCA cells and, after tumors were palpable, they were treated with KPT-9274 and/or anti-programmed cell death 1 (PDCD1; PD1) antibody for 21 days. Tumors were measured and then removed at animal euthanasia for subsequent studies. RESULTS We demonstrate a significant decrease in allograft growth with the combination treatment of KPT-9274 and anti-PD1 antibody without significant weight loss by the animals. This is associated with decreased (MOUSE) Naprt expression, indicating dependence of these tumors on NAMPT in parallel to what we have observed in human RCC. Histology of the tumors showed substantial necrosis regardless of treatment condition, and flow cytometry of antibody-stained tumor cells revealed that the enhanced therapeutic effect of KPT-9274 and anti-PD1 antibody was not driven by infiltration of T cells into tumors. CONCLUSIONS This study highlights the potential of the RENCA model for evaluating immunologic responses to KPT-9274 and checkpoint inhibitor (CPI) and suggests that therapy with this combination could improve efficacy in RCC beyond what is achievable with CPI alone.
Collapse
Affiliation(s)
- Josephine F. Trott
- Division of Nephrology, Department of Internal Medicine, University of California, Davis, California
| | - Omran Abu Aboud
- Division of Nephrology, Department of Internal Medicine, University of California, Davis, California
| | - Bridget McLaughlin
- Comprehensive Cancer Center, University of California, Davis, California
| | - Katie L. Anderson
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Center for Immunology, University of Minnesota, Minneapolis, Minnesota
| | - Jaime F. Modiano
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Center for Immunology, University of Minnesota, Minneapolis, Minnesota
- Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota
| | - Kyoungmi Kim
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, California
| | - Kuang-Yu Jen
- Department of Pathology and Laboratory Medicine, University of California, Davis, California
| | - William Senapedis
- Research and Translational Development, Karyopharm Therapeutics Inc., Newton, Massachusetts
| | - Hua Chang
- Research and Translational Development, Karyopharm Therapeutics Inc., Newton, Massachusetts
| | - Yosef Landesman
- Research and Translational Development, Karyopharm Therapeutics Inc., Newton, Massachusetts
| | - Erkan Baloglu
- Research and Translational Development, Karyopharm Therapeutics Inc., Newton, Massachusetts
| | - Roberto Pili
- Simon Cancer Center, School of Medicine, Indiana University, Indianapolis, Indiana
| | - Robert H. Weiss
- Division of Nephrology, Department of Internal Medicine, University of California, Davis, California
- Comprehensive Cancer Center, University of California, Davis, California
- Medical Service, Veterans Affairs Northern California Health Care System, Sacramento, California
| |
Collapse
|
30
|
Lala-Tabbert N, Lejmi-Mrad R, Timusk K, Fukano M, Holbrook J, St-Jean M, LaCasse EC, Korneluk RG. Targeted ablation of the cellular inhibitor of apoptosis 1 (cIAP1) attenuates denervation-induced skeletal muscle atrophy. Skelet Muscle 2019; 9:13. [PMID: 31126323 PMCID: PMC6533726 DOI: 10.1186/s13395-019-0201-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 05/13/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Skeletal muscle atrophy is a pathological condition that contributes to morbidity in a variety of conditions including denervation, cachexia, and aging. Muscle atrophy is characterized as decreased muscle fiber cross-sectional area and protein content due, in part, to the proteolytic activities of two muscle-specific E3 ubiquitin ligases: muscle RING-finger 1 (MuRF1) and muscle atrophy F-box (MAFbx or Atrogin-1). The nuclear factor-kappa B (NF-κB) pathway has emerged as a critical signaling network in skeletal muscle atrophy and has become a prime therapeutic target for the treatment of muscle diseases. Unfortunately, none of the NF-κB targeting drugs are currently being used to treat these diseases, likely because of our limited knowledge and specificity, for muscle biology and disease. The cellular inhibitor of apoptosis 1 (cIAP1) protein is a positive regulator of tumor necrosis factor alpha (TNFα)-mediated classical NF-κB signaling, and cIAP1 loss has been shown to enhance muscle regeneration during acute and chronic injury. METHODS Sciatic nerve transection in wild-type, cIAP1-null and Smac mimetic compound (SMC)-treated mice was performed to investigate the role of cIAP1 in denervation-induced atrophy. Genetic in vitro models of C2C12 myoblasts and primary myoblasts were also used to examine the role of classical NF-κB activity in cIAP1-induced myotube atrophy. RESULTS We found that cIAP1 expression was upregulated in denervated muscles compared to non-denervated controls 14 days after denervation. Genetic and pharmacological loss of cIAP1 attenuated denervation-induced muscle atrophy and overexpression of cIAP1 in myotubes was sufficient to induce atrophy. The induction of myotube atrophy by cIAP1 was attenuated when the classical NF-κB signaling pathway was inhibited. CONCLUSIONS These results demonstrate the cIAP1 is an important mediator of NF-κB/MuRF1 signaling in skeletal muscle atrophy and is a promising therapeutic target for muscle wasting diseases.
Collapse
Affiliation(s)
- Neena Lala-Tabbert
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Rim Lejmi-Mrad
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Kristen Timusk
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Marina Fukano
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
| | - Janelle Holbrook
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
| | - Martine St-Jean
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
| | - Eric C LaCasse
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
| | - Robert G Korneluk
- Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada.
| |
Collapse
|
31
|
Szentléleky E, Szegeczki V, Karanyicz E, Hajdú T, Tamás A, Tóth G, Zákány R, Reglődi D, Juhász T. Pituitary Adenylate Cyclase Activating Polypeptide (PACAP) Reduces Oxidative and Mechanical Stress-Evoked Matrix Degradation in Chondrifying Cell Cultures. Int J Mol Sci 2019; 20:ijms20010168. [PMID: 30621194 PMCID: PMC6337298 DOI: 10.3390/ijms20010168] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/18/2018] [Accepted: 12/26/2018] [Indexed: 01/04/2023] Open
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is an endogenous neuropeptide also secreted by non-neural cells, including chondrocytes. PACAP signaling is involved in the regulation of chondrogenesis, but little is known about its connection to matrix turnover during cartilage formation and under cellular stress in developing cartilage. We found that the expression and activity of hyaluronidases (Hyals), matrix metalloproteinases (MMP), and aggrecanase were permanent during the course of chondrogenesis in primary chicken micromass cell cultures, although protein levels changed daily, along with moderate and relatively constant enzymatic activity. Next, we investigated whether PACAP influences matrix destructing enzyme activity during oxidative and mechanical stress in chondrogenic cells. Exogenous PACAP lowered Hyals and aggrecanase expression and activity during cellular stress. Expression and activation of the majority of cartilage matrix specific MMPs such as MMP1, MMP7, MMP8, and MMP13, were also decreased by PACAP addition upon oxidative and mechanical stress, while the activity of MMP9 seemed not to be influenced by the neuropeptide. These results suggest that application of PACAP can help to preserve the integrity of the newly synthetized cartilage matrix via signaling mechanisms, which ultimately inhibit the activity of matrix destroying enzymes under cellular stress. It implies the prospect that application of PACAP can ameliorate articular cartilage destruction in joint diseases.
Collapse
Affiliation(s)
- Eszter Szentléleky
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Vince Szegeczki
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Edina Karanyicz
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Tibor Hajdú
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Andrea Tamás
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Szigeti út 12, H-7624 Pécs, Hungary.
| | - Gábor Tóth
- Department of Medical Chemistry, University of Szeged, Faculty of Medicine, Dóm tér 8, H-6720 Szeged, Hungary.
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Dóra Reglődi
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Szigeti út 12, H-7624 Pécs, Hungary.
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| |
Collapse
|
32
|
Grundy M, Jones T, Elmi L, Hall M, Graham A, Russell N, Pallis M. Early changes in rpS6 phosphorylation and BH3 profiling predict response to chemotherapy in AML cells. PLoS One 2018; 13:e0196805. [PMID: 29723246 PMCID: PMC5933738 DOI: 10.1371/journal.pone.0196805] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/19/2018] [Indexed: 11/19/2022] Open
Abstract
Blasts from different patients with acute myeloid leukemia (AML) vary in the agent(s) to which they are most responsive. With a myriad of novel agents to evaluate, there is a lack of predictive biomarkers to precisely assign targeted therapies to individual patients. Primary AML cells often survive poorly in vitro, thus confounding conventional cytotoxicity assays. The purpose of this work was to assess the potential of two same-day functional predictive assays in AML cell lines to predict long-term response to chemotherapy. (i) Ribosomal protein S6 (rpS6) is a downstream substrate of PI3K/akt/mTOR/ kinase and MAPK kinase pathways and its dephosphorylation is also triggered by DNA double strand breaks. Phospho-rpS6 is reliably measurable by flow cytometry and thus has the potential to function as a biomarker of responsiveness to several therapeutic agents. (ii) A cell's propensity for apoptosis can be interrogated via a functional assay termed "Dynamic BH3 Profiling" in which mitochondrial outer membrane permeabilization in drug-treated cells can be driven by pro-apoptotic BH3 domain peptides such as PUMA-BH3. The extent to which a particular cell is primed for apoptosis by the drug can be determined by measuring the amount of cytochrome C released on addition of BH3 peptide. We demonstrate that phospho-rpS6 expression and PUMA-BH3 peptide-induced cytochrome C release after 4 hours both predict long term chemoresponsiveness to tyrosine kinase inhibitors and DNA double strand break inducers in AML cell lines. We also describe changes in expression levels of the prosurvival BCL-2 family member Mcl-1 and the pro-apoptotic protein BIM after short term drug culture.
Collapse
Affiliation(s)
- Martin Grundy
- Clinical Haematology, Nottingham University Hospitals, Nottingham, United Kingdom
- * E-mail:
| | - Thomas Jones
- Department of Haematology, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Liban Elmi
- Department of Haematology, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Michael Hall
- Department of Haematology, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Adam Graham
- Department of Haematology, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Nigel Russell
- Clinical Haematology, Nottingham University Hospitals, Nottingham, United Kingdom
- Department of Haematology, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Monica Pallis
- Clinical Haematology, Nottingham University Hospitals, Nottingham, United Kingdom
| |
Collapse
|
33
|
Affiliation(s)
- Kunhong Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Nanomedical National Core Research Center, Seoul, Korea.
| |
Collapse
|
34
|
Liu JJ, Wang W, Dicker DT, El-Deiry WS. Bioluminescent imaging of TRAIL-induced apoptosis through detection of caspase activation following cleavage of DEVD-aminoluciferin. Cancer Biol Ther 2014; 4:885-92. [PMID: 16177559 DOI: 10.4161/cbt.4.8.2133] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Apoptosis, the most common and well-defined form of programmed cell death (PCD), is often impaired in cancer and neurodegenerative diseases and can limit conventional therapy. Bioluminescent molecular imaging was employed to study apoptosis in human colon cancer cells that have been treated with various doses of the therapeutic agent TRAIL (tumor necrosis factor-related apoptosis inducing ligand). While monitoring therapeutic response through a proluminescent, caspase-activated DEVD-aminoluciferin reagent (Caspase-Glo 3/7) which produced strong, stable signals, alternate preparations of the reagent were explored for non-invasive imaging methods. Dissolving the lyophilized DEVD-aminoluciferin compound in Dulbecco's PBS instead of lysis buffer (along with heat inactivation of an accompanying exogenous luciferase protein by heating at 85 degrees C for 20 minutes) yielded a minimally invasive apoptosis detector, with maximum luminescence intensities 2.5-fold stronger than those produced by D-luciferin at a final concentration of 100 microg/mL. Bioluminescent imaging of cancer therapeutic response through minimally invasive detection of caspase activation may serve as an important tool in monitoring apoptosis in vivo and in vitro.
Collapse
Affiliation(s)
- Jue Judy Liu
- Roy and Diana Vagelos Scholars Program in Molecular Life Sciences, University of Pennsylvania School of Arts and Sciences, Philadelphia, USA
| | | | | | | |
Collapse
|
35
|
Affiliation(s)
- Padhma Ranganathan
- Graduate Center for Toxicology, University of Kentucky, Lexington, Kentucky, USA
| | | |
Collapse
|
36
|
Ni Nyoman AD, Lüder CGK. Apoptosis-like cell death pathways in the unicellular parasite Toxoplasma gondii following treatment with apoptosis inducers and chemotherapeutic agents: a proof-of-concept study. Apoptosis 2013; 18:664-80. [PMID: 23468121 PMCID: PMC3634991 DOI: 10.1007/s10495-013-0832-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Ancient pathways of an apoptosis-like cell death have been identified in unicellular eukaryotes including protozoan parasites. Here, we examined programmed cell death in the apicomplexan Toxoplasma gondii which is a common intracellular pathogen of humans and warm-blooded animals. Treatment of extracellular T. gondii with various pro-apoptotic stimuli significantly induced DNA strand breaks as revealed by TUNEL and flow cytometry. Using staurosporine or miltefosine as pro-apoptotic stimuli, parasites also presented a reduced cell size, i.e. pyknosis and externalized phosphatidylserine while the plasma membrane remained intact. Importantly, staurosporine also induced DNA strand breaks in intracellular T. gondii. Data mining of the Toxoplasma genome resource identified 17 putative cell death-associated genes encoding proteases, a nuclease and several apoptosis regulators. Staurosporine-treated parasites but not controls strongly up-regulated several of these genes in a time-dependent fashion with a putative PDCD2 protein being more than 100-fold up-regulated. However, the mitochondrial membrane potential (ΔΨm) remained intact and caspase-like activity increased only slightly during staurosporine-triggered cell death. As compared to staurosporine, the transcriptional response of parasites to miltefosine was more restricted but PDCD2 was again strongly induced. Furthermore, T. gondii lost their ΔΨm and rapidly presented strong caspase-like activity during miltefosine treatment. Consequently, protease inhibitors abrogated miltefosine-induced but not staurosporine-induced Toxoplasma cell death. Finally, toxoplasmacidal drugs triggered DNA strand breaks in extracellular T. gondii. Interestingly, clindamycin also induced markers of an apoptosis-like cell death in intracellular parasites. Together, the data indicate that T. gondii possesses ancient apoptosis-like cell death machinery which can be triggered by chemotherapeutic agents.
Collapse
Affiliation(s)
- Ayu Dewi Ni Nyoman
- Institute for Medical Microbiology, University Medical Center, Georg-August-University, Kreuzbergring 57, 37075, Göttingen, Germany
- Department of Biochemistry, Faculty of Medicine and Health Sciences, Udayana University, Sudirman Denpasar, 80232 Bali, Indonesia
| | - Carsten G. K. Lüder
- Institute for Medical Microbiology, University Medical Center, Georg-August-University, Kreuzbergring 57, 37075, Göttingen, Germany
| |
Collapse
|
37
|
Qiao S, Cabello CM, Lamore SD, Lesson JL, Wondrak GT. D-Penicillamine targets metastatic melanoma cells with induction of the unfolded protein response (UPR) and Noxa (PMAIP1)-dependent mitochondrial apoptosis. Apoptosis 2013; 17:1079-94. [PMID: 22843330 DOI: 10.1007/s10495-012-0746-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
D-Penicillamine (3,3-dimethyl-D-cysteine; DP) is an FDA-approved redox-active D-cysteine-derivative with antioxidant, disulfide-reducing, and metal chelating properties used therapeutically for the control of copper-related pathology in Wilson's disease and reductive cystine-solubilization in cystinuria. Based on the established sensitivity of metastatic melanoma cells to pharmacological modulation of cellular oxidative stress, we tested feasibility of using DP for chemotherapeutic intervention targeting human A375 melanoma cells in vitro and in vivo. DP treatment induced caspase-dependent cell death in cultured human metastatic melanoma cells (A375, G361) without compromising viability of primary epidermal melanocytes, an effect not observed with the thiol-antioxidants N-acetyl-L-cysteine (NAC) and dithiothreitol. Focused gene expression array analysis followed by immunoblot detection revealed that DP rapidly activates the cytotoxic unfolded protein response (UPR; involving phospho-PERK, phospho-eIF2α, Grp78, CHOP, and Hsp70) and the mitochondrial pathway of apoptosis with p53 upregulation and modulation of Bcl-2 family members (involving Noxa, Mcl-1, and Bcl-2). DP (but not NAC) induced oxidative stress with early impairment of glutathione homeostasis and mitochondrial transmembrane potential. SiRNA-based antagonism of PMAIP1 expression blocked DP-induced upregulation of the proapoptotic BH3-only effector Noxa and prevented downregulation of the Noxa-antagonist Mcl-1, rescuing melanoma cells from DP-induced apoptosis. Intraperitoneal administration of DP displayed significant antimelanoma activity in a murine A375 xenograft model. It remains to be seen if melanoma cell-directed induction of UPR and apoptosis using DP or improved DP-derivatives can be harnessed for future chemotherapeutic intervention.
Collapse
Affiliation(s)
- Shuxi Qiao
- Department of Pharmacology and Toxicology, College of Pharmacy and Arizona Cancer Center, University of Arizona, 1515 North Campbell Avenue, Tucson, AZ 85724, USA
| | | | | | | | | |
Collapse
|
38
|
Sale MJ, Cook SJ. That which does not kill me makes me stronger; combining ERK1/2 pathway inhibitors and BH3 mimetics to kill tumour cells and prevent acquired resistance. Br J Pharmacol 2013; 169:1708-22. [PMID: 23647573 PMCID: PMC3753831 DOI: 10.1111/bph.12220] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/10/2013] [Accepted: 04/25/2013] [Indexed: 01/07/2023] Open
Abstract
UNLABELLED Oncogenic mutations in RAS or BRAF can drive the inappropriate activation of the ERK1/2. In many cases, tumour cells adapt to become addicted to this deregulated ERK1/2 signalling for their proliferation, providing a therapeutic window for tumour-selective growth inhibition. As a result, inhibition of ERK1/2 signalling by BRAF or MEK1/2 inhibitors is an attractive therapeutic strategy. Indeed, the first BRAF inhibitor, vemurafenib, has now been approved for clinical use, while clinical evaluation of MEK1/2 inhibitors is at an advanced stage. Despite this progress, it is apparent that tumour cells adapt quickly to these new targeted agents so that tumours with acquired resistance can emerge within 6-9 months of primary treatment. One of the major reasons for this is that tumour cells typically respond to BRAF or MEK1/2 inhibitors by undergoing a G1 cell cycle arrest rather than dying. Indeed, although inhibition of ERK1/2 invariably increases the expression of pro-apoptotic BCL2 family proteins, tumour cells undergo minimal apoptosis. This cytostatic response may simply provide the cell with the opportunity to adapt and acquire resistance. Here we discuss recent studies that demonstrate that combination of BRAF or MEK1/2 inhibitors with inhibitors of pro-survival BCL2 proteins is synthetic lethal for ERK1/2-addicted tumour cells. This combination effectively transforms the cytostatic response of BRAF and MEK1/2 inhibitors into a striking apoptotic cell death response. This not only augments the primary efficacy of BRAF and MEK1/2 inhibitors but delays the onset of acquired resistance to these agents, validating their combination in the clinic. LINKED ARTICLES This article is part of a themed section on Emerging Therapeutic Aspects in Oncology. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2013.169.issue-8.
Collapse
Affiliation(s)
- Matthew J Sale
- Signalling Laboratory, The Babraham Institute, Babraham Research Campus, Cambridge, UK.
| | | |
Collapse
|
39
|
Shoji-Kawata S, Sumpter R, Leveno M, Campbell GR, Zou Z, Kinch L, Wilkins AD, Sun Q, Pallauf K, MacDuff D, Huerta C, Virgin HW, Helms JB, Eerland R, Tooze SA, Xavier R, Lenschow DJ, Yamamoto A, King D, Lichtarge O, Grishin NV, Spector SA, Kaloyanova DV, Levine B. Identification of a candidate therapeutic autophagy-inducing peptide. Nature 2013; 494:201-6. [PMID: 23364696 PMCID: PMC3788641 DOI: 10.1038/nature11866] [Citation(s) in RCA: 574] [Impact Index Per Article: 52.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 12/17/2012] [Indexed: 12/12/2022]
Abstract
The lysosomal degradation pathway of autophagy has a crucial role in defence against infection, neurodegenerative disorders, cancer and ageing. Accordingly, agents that induce autophagy may have broad therapeutic applications. One approach to developing such agents is to exploit autophagy manipulation strategies used by microbial virulence factors. Here we show that a peptide, Tat-beclin 1-derived from a region of the autophagy protein, beclin 1, which binds human immunodeficiency virus (HIV)-1 Nef-is a potent inducer of autophagy, and interacts with a newly identified negative regulator of autophagy, GAPR-1 (also called GLIPR2). Tat-beclin 1 decreases the accumulation of polyglutamine expansion protein aggregates and the replication of several pathogens (including HIV-1) in vitro, and reduces mortality in mice infected with chikungunya or West Nile virus. Thus, through the characterization of a domain of beclin 1 that interacts with HIV-1 Nef, we have developed an autophagy-inducing peptide that has potential efficacy in the treatment of human diseases.
Collapse
Affiliation(s)
- Sanae Shoji-Kawata
- Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas 75390, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Chen Z, Li Y, Zhang C, Yi H, Wu C, Wang J, Liu Y, Tan J, Wen J. Downregulation of Beclin 1 and impairment of autophagy in a small population of colorectal cancer. Dig Dis Sci 2013; 58:2887-94. [PMID: 23812859 PMCID: PMC3781302 DOI: 10.1007/s10620-013-2732-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 05/29/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Autophagy is a highly conserved mechanism for degradation and recycling of long-lived proteins and damaged organelle to maintain cell homeostasis. Deregulation of autophagy has been associated with tumorigenesis. Beclin 1 is an essential autophagy protein and its upregulation has been observed in most colorectal cancer tissues. However, there is a small population of colorectal cancers with downregulation of Beclin 1. AIM The purpose of this study was to investigate the role autophagy plays in colorectal cancers with downregulation of Beclin 1. METHODS LC3 protein, an autophagosome marker, was assessed by ICH and WB in colorectal cancers tissues. An anti-tumor effect of Beclin 1 was examined by introducing exogenous Beclin 1 in vitro. Colony formation assay, growth curves and mouse xenograft were analysed. RESULTS Our results showed that LC3 was suppressed in the colorectal cancers (9.86 %) with downregulation of Beclin 1. Moreover, overexpression of Beclin 1 inhibited colorectal cancer cell growth and enhanced the rapamycin-induced antitumor effect in vitro. CONCLUSION Downregulation of Beclin 1 and autophagy inhibition play an important role in a part of colorectal cancers. Activating autophagy or overexpression of Beclin 1 may be an effective treatment for some colorectal cancers. Detection of expression profile of Beclin 1 in colorectal cancers could be a strategy for new diagnostic and therapeutic methods.
Collapse
Affiliation(s)
- Zhihong Chen
- Department of Pathology, School of Basic Medicine, Central South University, 172 Tong Zi Po Road, Changsha, 410013 China
- Department of Pathology, Hunan Provincial People’s Hospital, Changsha, 410005 China
| | - Yanchun Li
- Department of Pathology, Hunan Provincial People’s Hospital, Changsha, 410005 China
| | - Chi Zhang
- Function Laboratory Centre, University of South China, Hengyang, 421001 China
| | - Hongmei Yi
- Department of Pathology, Hunan Provincial People’s Hospital, Changsha, 410005 China
| | - Chang Wu
- Department of Pathology, School of Basic Medicine, Central South University, 172 Tong Zi Po Road, Changsha, 410013 China
| | - Junpu Wang
- Department of Pathology, School of Basic Medicine, Central South University, 172 Tong Zi Po Road, Changsha, 410013 China
| | - Yuwu Liu
- Department of Pathology, School of Basic Medicine, Central South University, 172 Tong Zi Po Road, Changsha, 410013 China
| | - Jieqiong Tan
- State Key Lab of Medical Genetics, Central South University, Changsha, 410078 China
| | - Jifang Wen
- Department of Pathology, School of Basic Medicine, Central South University, 172 Tong Zi Po Road, Changsha, 410013 China
| |
Collapse
|
41
|
Shanmugam MK, Nguyen AH, Kumar AP, Tan BKH, Sethi G. Targeted inhibition of tumor proliferation, survival, and metastasis by pentacyclic triterpenoids: potential role in prevention and therapy of cancer. Cancer Lett 2012; 320:158-70. [PMID: 22406826 DOI: 10.1016/j.canlet.2012.02.037] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/28/2012] [Accepted: 02/29/2012] [Indexed: 01/08/2023]
Abstract
Over the last two decades, extensive research on plant-based medicinal compounds has revealed exciting and important pharmacological properties and activities of triterpenoids. Fruits, vegetables, cereals, pulses, herbs and medicinal plants are all considered to be biological sources of these triterpenoids, which have attracted great attention especially for their potent anti-inflammatory and anti-cancer activities. Published reports in the past have described the molecular mechanism(s) underlying the various biological activities of triterpenoids which range from inhibition of acute and chronic inflammation, inhibition of tumor cell proliferation, induction of apoptosis, suppression of angiogenesis and metastasis. However systematic analysis of various pharmacological properties of these important classes of compounds has not been done. In this review, we describe in detail the pre-clinical chemopreventive and therapeutic properties of selected triterpenoids that inhibit multiple intracellular signaling molecules and transcription factors involved in the initiation, progression and promotion of various cancers. Molecular targets modulated by these triterpenoids comprise, cytokines, chemokines, reactive oxygen intermediates, oncogenes, inflammatory enzymes such as COX-2, 5-LOX and MMPs, anti-apoptotic proteins, transcription factors such as NF-κB, STAT3, AP-1, CREB, and Nrf2 (nuclear factor erythroid 2-related factor) that regulate tumor cell proliferation, transformation, survival, invasion, angiogenesis, metastasis, chemoresistance and radioresistance. Finally, this review also analyzes the potential role of novel synthetic triterpenoids identified recently which mimic natural triterpenoids in physical and chemical properties and are moving rapidly from bench to bedside research.
Collapse
Affiliation(s)
- Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | | | | | | | | |
Collapse
|
42
|
Xu Y, Zheng W, Wang T, Wang P, Zhu L, Ma X. Genetic protein TmSm(T34A) enhances sensitivity of chemotherapy to breast cancer cell lines as a synergistic drug to doxorubicin. Biomed Pharmacother 2012; 66:368-72. [PMID: 22560635 DOI: 10.1016/j.biopha.2011.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Accepted: 12/15/2011] [Indexed: 01/12/2023] Open
Abstract
In order to eliminate common side effects to cancer patients and resistance from chemotherapy, a genetic protein TmSm(T34A) was investigated as a sensitizer to doxorubicin. The results indicated TmSm(T34A) enhanced the sensitivity of three breast cancer cell lines to doxorubicin with low dose, and reduced the dose of doxorubicin significantly in contrast to common effective dose. As a synergistic therapy, the TmSm(T34A) also caused strongest apoptotic activity in MCF-7, and the possible molecular mechanisms were explored primarily. The research showed the TmSm(T34A) is promising to be a potential drug in strengthening therapy effects of breast cancer chemotherapy.
Collapse
Affiliation(s)
- Yuxin Xu
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | | | | | | | | | | |
Collapse
|
43
|
Wang S, Han Q, Zhang G, Zhang N, Li Z, Chen J, Lv Y, Li N, Xing F, Tian N, Zhu Q, Liu Z. CpG oligodeoxynucleotide-adjuvanted fusion peptide derived from HBcAg epitope and HIV-Tat may elicit favorable immune response in PBMCs from patients with chronic HBV infection in the immunotolerant phase. Int Immunopharmacol 2010; 11:406-11. [PMID: 21182997 DOI: 10.1016/j.intimp.2010.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2010] [Revised: 12/05/2010] [Accepted: 12/06/2010] [Indexed: 12/22/2022]
Abstract
The absence or insufficiency of specific immune response results in chronic hepatitis B virus (HBV) infection and immunotolerance. Therapeutic fusion peptide containing hepatitis B core antigen (HBcAg)(18-27) CTL epitope and human immunodeficiency virus (HIV)-Tat(49-57) peptide was synthesized and the activity when adjuvanted with CpG oligodeoxynucleotide (CpG ODN) was evaluated in PBMCs from patients with chronic HBV infection in the immunotolerant phase in this study. Results showed that the fusion peptide when adjuvanted with CpG ODN could induce significantly higher levels of IFN-γ and IL-4 in the PBMCs compared with fusion peptide or CpG ODN alone. The magnitude of augmentation to IFN-γ by the fusion peptide plus CpG ODN was much higher than that to IL-4. Cytotoxicity assay showed that the percentage of target cell lysis by effector cells stimulated by fusion peptide plus CpG ODN was higher than that in fusion peptide or CpG ODN alone at most of the E/T ratios tested. The magnitude augmented to IFN-γ by fusion peptide plus CpG ODN was also much higher than that to the percentage of target cell lysis. It is concluded that HBcAg(18-27) and HIV-Tat(49-57) fusion peptide when adjuvanted with CpG ODN may have much higher potency to induce IFN-γ than to induce IL-4 and cytotoxicity, suggesting the favorable immune response towards noncytolytic inactivation of the virus mediated by IFN-γ and the potential to break the tolerant state in chronic HBV infection.
Collapse
MESH Headings
- Adjuvants, Immunologic/adverse effects
- Adjuvants, Immunologic/chemical synthesis
- Adjuvants, Immunologic/pharmacology
- Adult
- Apoptosis Regulatory Proteins/adverse effects
- Apoptosis Regulatory Proteins/chemistry
- Apoptosis Regulatory Proteins/pharmacology
- Cell Culture Techniques
- Cell Survival/drug effects
- Chromatography, High Pressure Liquid
- DNA/chemistry
- DNA/pharmacology
- Enzyme-Linked Immunosorbent Assay
- Epitopes/chemistry
- Female
- Hep G2 Cells
- Hepatitis B Surface Antigens/chemistry
- Hepatitis B, Chronic/blood
- Hepatitis B, Chronic/immunology
- Humans
- Immune Tolerance
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Interleukin-4/immunology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Male
- Middle Aged
- Oligodeoxyribonucleotides
- Peptide Fragments/chemistry
- Recombinant Fusion Proteins/adverse effects
- Recombinant Fusion Proteins/chemistry
- Recombinant Fusion Proteins/pharmacology
- Survivin
- Th1 Cells/drug effects
- Th1 Cells/immunology
- Th2 Cells/drug effects
- Th2 Cells/immunology
- Young Adult
- tat Gene Products, Human Immunodeficiency Virus/adverse effects
- tat Gene Products, Human Immunodeficiency Virus/chemistry
- tat Gene Products, Human Immunodeficiency Virus/pharmacology
Collapse
Affiliation(s)
- Suna Wang
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, The People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Wang YF, Song QS, Zhang YM, Ma DL, Wang Y, Ke XY. [Sensitizing effect of recombinant human PDCD5 protein on chemotherapy of acute monocytic leukemia cell line U937 and its mechanism]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2010; 18:277-281. [PMID: 20416151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study was aimed to investigate the sensitizing effect of recombinant human PDCD5 (rhPDCD5) protein on chemotherapy of U937 cell line and its mechanism. The flow cytometry was performed to assess the changes of cell apoptosis and cell cycle influenced by rhPDCD5. Hochst 33258 staining was used to observe morphology of the apoptotic cells. The activity change of caspase-3 was detected to analyse the possible mechanisms of rhPDCD5-induced apoptosis. RT-PCR was performed to observe the expression level of drug-resistant genes. The results showed that the percentage of apoptotic cells and the activity of caspase-3 remarkably increased in U937 cells treated with rhPDCD5 combined with chemotherapeutic drug; the cell cycle arrest induced by anti-tumor drug was also enhanced when combined with rhPDCD5; meanwhile, the expression levels of drug-resistant genes were down-regulated in jointly treated U937 cells. It is concluded that the chemosensitizing mechanisms of rhPDCD5 are complex. rhPDCD5 may increase the cytotoxicity of anti-tumor drugs by promoting the caspase-3-related apoptosis, influencing cell cycle, decreasing the expression of drug-resistant genes and reversing drug-resistance.
Collapse
Affiliation(s)
- Yan-Fang Wang
- Department of Hematology, The Third Hospital, Peking University, Beijing 100191, China
| | | | | | | | | | | |
Collapse
|
45
|
Zheng WY, Ma XY, Wei DZ, Wang JZ, Liu QH, Ma YS, Yang SL. [Preparation of recombinant HIV-TATm-survivin (T34A) protein and its pro-apoptosis activity to cancer cells in vitro]. Sheng Wu Gong Cheng Xue Bao 2009; 22:285-92. [PMID: 16607958 DOI: 10.1016/s1872-2075(06)60028-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
As a novel member of the IAP (Inhibitor of apoptosis protein) family, survivin was observed to be expressed in most human cancerous cells. Fusion protein TATm-survivin (T34A) has drawn considerable attention because it is a potential anti-tumor protein that can be transduced into cancer cell with the help of HIV-TAT domain. In this study, the cDNA encoding survivin was cloned by RT-PCR from human breast cancer cell lines B-Cap-37. An expression vector of pRSET-B-HIV-tatm-survivin (T34A) was constructed by PCR after survivin (T34A) was mutated by site-directed mutagenesis. Subsequently, the resultant plasmid was transformed into E. coli BL21 (DE3). Recombinant HIV-TATm-Survivin (T34A) protein was expressed efficiently with 0.5mM IPTG as inducer, reaching a yield of 650mg/liter (as inclusion body) in fermentation culture. The inclusion bodies were solubilized, refolded and purified to a purity of 96% by ion exchange chromatograghy and size-exclusion chromatography. Remarkable effects of the purified recombinant HIV-TATm-Survivin (T34A) on the morphology of cell line SW1990 and B-Cap-37 were observed after being administrated for 4h. MTT assay showed recombinant HIV-TATm-survivin (T34A) protein could inhibit significantly cell proliferation of SW1990 and B-Cap-37 and SSMC-7721 in vitro. Apoptosis rate and cell circle of SW1990 and B-Cap-37 that had been treated with target protein (final concentration 30 microg/mL) were detected with flow cytometry. Results revealed that more than 65% cancer cells were arrested at G1 phase. The study suggested that TATm-survivin (T34A) protein was a hopeful protein drug in the treatment of cancers by facilitating apoptosis of cancer cells. Key words recombinant HIV-TATm-Survivin (T34A), expression and purification, pro-apoptosis bioactivity, SW1990 and B-Cap-37 cancer cell lines
Collapse
Affiliation(s)
- Wen-Yun Zheng
- State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science & Technology, Shanghai 200237, China
| | | | | | | | | | | | | |
Collapse
|
46
|
Abstract
Apo2L/TRAIL ligation of specific cell surface receptors (DR4 and DR5) induces apoptosis of many malignant cells with little effect on normal cells. This anti-tumor capability has been demonstrated using cell lines of many tumor types, both in vitro and in vivo when the cells are grown as xenografts. We have extended these studies to investigate the efficacy of Apo2L/TRAIL against patient tumor xenografts in SCID mice and found that the growth of many tumors, both of primary and metastatic origin, can be inhibited by Apo2L/TRAIL. The basis of resistance to Apo2L/TRAIL induced apoptosis in malignant cells and normal cells is not completely understood, but it is known that a variety of factors including hypoxia, MMPs and cytokines present in the tumor microenvironment can influence the response of malignant cells to Apo2L/TRAIL. Currently, the clinical potential of several molecules targeting the Apo2L/TRAIL receptors DR4 and DR5 is being investigated. Our goal in this review is to provide a brief overview of a number of factors that have potential to influence the response of patient tumors to Apo2L/TRAIL.
Collapse
Affiliation(s)
- Thomas A Mace
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
| | | | | | | | | |
Collapse
|
47
|
Chen J, Volpi S, Aguilera G. Anti-apoptotic actions of vasopressin in H32 neurons involve MAP kinase transactivation and Bad phosphorylation. Exp Neurol 2008; 211:529-38. [PMID: 18402937 PMCID: PMC2447546 DOI: 10.1016/j.expneurol.2008.02.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2008] [Revised: 02/21/2008] [Accepted: 02/26/2008] [Indexed: 01/29/2023]
Abstract
Vasopressin (VP) secreted within the brain modulates neuronal function acting as a neurotransmitter. Based on the observation that VP prevented serum deprivation-induced cell death in the neuronal cell line, H32, which expresses endogenous V1 receptors, we tested the hypothesis that VP has anti-apoptotic properties. Flow cytometry experiments showed that 10 nM VP prevented serum deprivation-induced cell death and annexin V binding. Serum deprivation increased caspase-3 activity in a time and serum concentration dependent manner, and VP prevented these effects through interaction with receptors of V1 subtype. The signaling pathways mediating the anti-apoptotic effect of VP involve mitogen activated protein (MAP) kinase and extracellular signal-regulated kinases (ERK), Ca(2+)/calmodulin dependent kinase (CaMK) and protein kinase C (PKC). Western blot analyses revealed time-dependent decreases of Bad phosphorylation and increases in cytosolic levels of cytochrome c following serum deprivation, effects which were prevented by 10 nM VP. These data demonstrate that activation of endogenous V1 VP receptors prevents serum deprivation-induced apoptosis, through phosphorylation-inactivation of the pro-apoptotic protein, Bad, and consequent decreases in cytosolic cytochrome c and caspase-3 activation. The data suggest that VP has anti-apoptotic activity in neurons and that VP may act as a neuroprotective agent in the brain.
Collapse
Affiliation(s)
- Jun Chen
- Developmental Endocrinology Branch, National Institute of Child Health and Human Development, NIH, Bethesda MD 20892, USA
| | | | | |
Collapse
|
48
|
Chemnitz JM, Eggle D, Driesen J, Classen S, Riley JL, Debey-Pascher S, Beyer M, Popov A, Zander T, Schultze JL. RNA fingerprints provide direct evidence for the inhibitory role of TGFβ and PD-1 on CD4+ T cells in Hodgkin lymphoma. Blood 2007; 110:3226-33. [PMID: 17644739 DOI: 10.1182/blood-2006-12-064360] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Abstract
A hallmark of various human malignancies is the expression of immunoinhibitory factors within the tumor microenvironment. There is indirect evidence based on in vitro experiments that tumor-infiltrating T cells in human malignancies are suppressed by such factors. Still, direct evidence of the influence of individual inhibitory factors on immune cells in human cancer in vivo is lacking. To address this question, we used Hodgkin lymphoma (HL) as a model because histopathological characteristics of HL are thought to be due mostly to the effects of a wide variety of cytokines, including TGFβ or membrane-bound receptors such as PD-1 that are suspected to contribute to immune evasion of tumor cells. Using a genome-wide transcriptional approach, we established specific RNA fingerprints of TGFβ and PD-1 signaling in human T cells in vitro. Applying these specific fingerprints, we directly demonstrate that CD4+ T cells in HL—but not in follicular lymphoma (FL)—are under the inhibitory influence of both TGFβ and PD-1 in vivo. This approach can be easily generalized to provide direct evidence of the impact of any given soluble or cell-bound factor on any cell type within diseased tissue.
Collapse
Affiliation(s)
- Jens M Chemnitz
- Molecular Tumor Biology and Tumor Immunology, Department of Internal Medicine I, University of Cologne, Kerpener Strasse 62, 50924 Cologne, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Turco MC, Lamberti A, Bisogni R, Romano MF, Petrella A, Ammirante M, Rosati A, d' Avenia M, Arra C, Spugnini E, Venuta S. Modulation of cell apoptosis by AIR. Leukemia 2007; 21:2557-9. [PMID: 17637817 DOI: 10.1038/sj.leu.2404837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
50
|
Cumont MC, Monceaux V, Viollet L, Lay S, Parker R, Hurtrel B, Estaquier J. TGF-beta in intestinal lymphoid organs contributes to the death of armed effector CD8 T cells and is associated with the absence of virus containment in rhesus macaques infected with the simian immunodeficiency virus. Cell Death Differ 2007; 14:1747-58. [PMID: 17612589 DOI: 10.1038/sj.cdd.4402192] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
SIV-infected macaques exhibit distinct rates of progression to AIDS and despite significant increases in CD8+ T cells, immune cells fail to control and eradicate SIV in vivo. Here, we investigated the interplay between viral reservoir sites, CD8+ T-cell activation/death and outcome. Our data provide strong evidence that mesenteric (Mes) lymph nodes represent major reservoirs not only for SIV-infected macaques progressing more rapidly toward AIDS but also in controllers. We demonstrate that macaques progressing faster display greater expression of TGF-beta and Indoleamine 2,3 dioxygenase in particular in intestinal tissues associated with a phosphorylation of the p53 protein on serine 15 in CD8+ T cells from Mes lymph nodes. These factors may act as a negative regulator of CD8+ T-cell function by inducing a Bax/Bak/Puma-dependent death pathway of effector/memory CD8+ T cells. Greater T-cell death and viral dissemination was associated with a low level of TIA-1+ expressing cells. Finally, we provide evidence that abrogation of TGF-beta in vitro enhances T-cell proliferation and reduces CD8+ T-cell death. Our data identify a mechanism of T-cell exhaustion in intestinal lymphoid organs and define a potentially effective immunological strategy for the modulation of progression to AIDS.
Collapse
Affiliation(s)
- M C Cumont
- CNRS URA 1930; Unité de Physiopathologie des Infections Lentivirales, Institut Pasteur, 28 rue du Docteur Roux, 75724 Paris cedex 15, France
| | | | | | | | | | | | | |
Collapse
|