1
|
Roy S, Curry SD, Bibbey MG, Chapnick DA, Liu X, Goodwin AP, Cha JN. Effect of covalent photoconjugation of affibodies to epidermal growth factor receptor (EGFR) on cellular quiescence. Biotechnol Bioeng 2022; 119:187-198. [PMID: 34676884 DOI: 10.1002/bit.27964] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 08/03/2021] [Accepted: 10/13/2021] [Indexed: 11/10/2022]
Abstract
Cellular quiescence is a reversible state of cell cycle arrest whereby cells are temporarily maintained in the nondividing phase. Inducing quiescence in cancer cells by targeting growth receptors is a treatment strategy to slow cell growth in certain aggressive tumors, which in turn increases the efficacy of treatments such as surgery or systemic chemotherapy. However, ligand interactions with cell receptors induce receptor-mediated endocytosis followed by proteolytic degradation, which limits the duration of cellular quiescence. Here, we report the effects of targeted covalent affibody photoconjugation to epidermal growth factor receptors (EGFR) on EGFR-positive MDA-MB-468 breast cancer cells. First, covalently conjugating affibodies to cells increased doubling time two-fold and reduced ERK activity by 30% as compared to cells treated with an FDA-approved anti-EGFR antibody Cetuximab, which binds to EGFR noncovalently. The distribution of cells in each phase of the cell cycle was determined, and cells conjugated with the affibody demonstrated an accumulation in the G1 phase, indicative of G1 cell cycle arrest. Finally, the proliferative capacity of the cells was determined by the incorporation of 5-ethynyl-2-deoxyuridine and Ki67 Elisa assay, which showed that the percentage of proliferative cells with photoconjugated affibody was half of that found for the untreated control.
Collapse
Affiliation(s)
- Shambojit Roy
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, USA
| | - Shane D Curry
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, USA
| | - Michael G Bibbey
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, USA
| | - Douglas A Chapnick
- Department of Biochemistry, University of Colorado, Boulder, Colorado, USA
| | - Xuedong Liu
- Department of Biochemistry, University of Colorado, Boulder, Colorado, USA
| | - Andrew P Goodwin
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, USA
| | - Jennifer N Cha
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, USA
| |
Collapse
|
2
|
Kim MJ, Cervantes C, Jung YS, Zhang X, Zhang J, Lee SH, Jun S, Litovchick L, Wang W, Chen J, Fang B, Park JI. PAF remodels the DREAM complex to bypass cell quiescence and promote lung tumorigenesis. Mol Cell 2021; 81:1698-1714.e6. [PMID: 33626321 PMCID: PMC8052288 DOI: 10.1016/j.molcel.2021.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/15/2020] [Accepted: 01/29/2021] [Indexed: 01/01/2023]
Abstract
The DREAM complex orchestrates cell quiescence and the cell cycle. However, how the DREAM complex is deregulated in cancer remains elusive. Here, we report that PAF (PCLAF/KIAA0101) drives cell quiescence exit to promote lung tumorigenesis by remodeling the DREAM complex. PAF is highly expressed in lung adenocarcinoma (LUAD) and is associated with poor prognosis. Importantly, Paf knockout markedly suppressed LUAD development in mouse models. PAF depletion induced LUAD cell quiescence and growth arrest. PAF is required for the global expression of cell-cycle genes controlled by the repressive DREAM complex. Mechanistically, PAF inhibits DREAM complex formation by binding to RBBP4, a core DREAM subunit, leading to transactivation of DREAM target genes. Furthermore, pharmacological mimicking of PAF-depleted transcriptomes inhibited LUAD tumor growth. Our results unveil how the PAF-remodeled DREAM complex bypasses cell quiescence to promote lung tumorigenesis and suggest that the PAF-DREAM axis may be a therapeutic vulnerability in lung cancer.
Collapse
Affiliation(s)
- Moon Jong Kim
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Christopher Cervantes
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Youn-Sang Jung
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Xiaoshan Zhang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jie Zhang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sung Ho Lee
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sohee Jun
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Larisa Litovchick
- Department of Internal Medicine and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Wenqi Wang
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Junjie Chen
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Bingliang Fang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jae-Il Park
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; The University of Texas MD Anderson UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA; Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| |
Collapse
|
3
|
Dobrowolski C, Valadkhan S, Graham AC, Shukla M, Ciuffi A, Telenti A, Karn J. Entry of Polarized Effector Cells into Quiescence Forces HIV Latency. mBio 2019; 10:e00337-19. [PMID: 30914509 DOI: 10.1128/mBio.00337-19] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Current primary cell models for HIV latency correlate poorly with the reactivation behavior of patient cells. We have developed a new model, called QUECEL, which generates a large and homogenous population of latently infected CD4+ memory cells. By purifying HIV-infected cells and inducing cell quiescence with a defined cocktail of cytokines, we have eliminated the largest problems with previous primary cell models of HIV latency: variable infection levels, ill-defined polarization states, and inefficient shutdown of cellular transcription. Latency reversal in the QUECEL model by a wide range of agents correlates strongly with RNA induction in patient samples. This scalable and highly reproducible model of HIV latency will permit detailed analysis of cellular mechanisms controlling HIV latency and reactivation. The latent HIV reservoir is generated following HIV infection of activated effector CD4 T cells, which then transition to a memory phenotype. Here, we describe an ex vivo method, called QUECEL (quiescent effector cell latency), that mimics this process efficiently and allows production of large numbers of latently infected CD4+ T cells. Naïve CD4+ T cells were polarized into the four major T cell subsets (Th1, Th2, Th17, and Treg) and subsequently infected with a single-round reporter virus which expressed GFP/CD8a. The infected cells were purified and coerced into quiescence using a defined cocktail of cytokines, including tumor growth factor beta, interleukin-10 (IL-10), and IL-8, producing a homogeneous population of latently infected cells. Flow cytometry and transcriptome sequencing (RNA-Seq) demonstrated that the cells maintained the correct polarization phenotypes and had withdrawn from the cell cycle. Key pathways and gene sets enriched during transition from quiescence to reactivation include E2F targets, G2M checkpoint, estrogen response late gene expression, and c-myc targets. Reactivation of HIV by latency-reversing agents (LRAs) closely mimics RNA induction profiles seen in cells from well-suppressed HIV patient samples using the envelope detection of in vitro transcription sequencing (EDITS) assay. Since homogeneous populations of latently infected cells can be recovered, the QUECEL model has an excellent signal-to-noise ratio and has been extremely consistent and reproducible in numerous experiments performed during the last 4 years. The ease, efficiency, and accuracy of the mimicking of physiological conditions make the QUECEL model a robust and reproducible tool to study the molecular mechanisms underlying HIV latency.
Collapse
|
4
|
Okada T, Okabe G, Tak YS, Mimura S, Takisawa H, Kubota Y. Suppression of targeting of Dbf4-dependent kinase to pre-replicative complex in G0 nuclei. Genes Cells 2018; 23:94-104. [PMID: 29314475 DOI: 10.1111/gtc.12556] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/01/2017] [Indexed: 12/01/2022]
Abstract
Intact G0 nuclei isolated from quiescent cells are not capable of DNA replication in interphase Xenopus egg extracts, which allow efficient replication of permeabilized G0 nuclei. Previous studies have shown multiple control mechanisms for maintaining the quiescent state, but DNA replication inhibition of intact G0 nuclei in the extracts remains poorly understood. Here, we showed that pre-RC is assembled on chromatin, but its activation is inhibited after incubating G0 nuclei isolated from quiescent NIH3T3 cells in the extracts. Concomitant with the inhibition of replication, Mcm4 phosphorylation mediated by Dbf4-dependent kinase (DDK) as well as chromatin binding of DDK is suppressed in G0 nuclei without affecting the nuclear transport of DDK. We further found that the nuclear extracts of G0 but not proliferating cells inhibit the binding of recombinant DDK to pre-RC assembled plasmids. In addition, we observed rapid activation of checkpoint kinases after incubating G0 nuclei in the egg extracts. However, specific inhibitors of ATR/ATM are unable to promote DNA replication in G0 nuclei in the egg extracts. We suggest that a novel inhibitory mechanism is functional to prevent the targeting of DDK to pre-RC in G0 nuclei, thereby suppressing DNA replication in Xenopus egg extracts.
Collapse
Affiliation(s)
- Takuya Okada
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.,Department of Mammalian Regulatory Network, Graduate School of Biostudies, Kyoto University, Kyoto, Kyoto, Japan
| | - Gaku Okabe
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.,Engineering Integration Department, Air Water Inc., Osaka, Japan
| | - Yon-Soo Tak
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Satoru Mimura
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Haruhiko Takisawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Yumiko Kubota
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| |
Collapse
|
5
|
Leonov A, Feldman R, Piano A, Arlia-Ciommo A, Lutchman V, Ahmadi M, Elsaser S, Fakim H, Heshmati-Moghaddam M, Hussain A, Orfali S, Rajen H, Roofigari-Esfahani N, Rosanelli L, Titorenko VI. Caloric restriction extends yeast chronological lifespan via a mechanism linking cellular aging to cell cycle regulation, maintenance of a quiescent state, entry into a non-quiescent state and survival in the non-quiescent state. Oncotarget 2017; 8:69328-69350. [PMID: 29050207 PMCID: PMC5642482 DOI: 10.18632/oncotarget.20614] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/14/2017] [Indexed: 12/22/2022] Open
Abstract
A yeast culture grown in a nutrient-rich medium initially containing 2% glucose is not limited in calorie supply. When yeast cells cultured in this medium consume glucose, they undergo cell cycle arrest at a checkpoint in late G1 and differentiate into quiescent and non-quiescent cell populations. Studies of such differentiation have provided insights into mechanisms of yeast chronological aging under conditions of excessive calorie intake. Caloric restriction is an aging-delaying dietary intervention. Here, we assessed how caloric restriction influences the differentiation of chronologically aging yeast cultures into quiescent and non-quiescent cells, and how it affects their properties. We found that caloric restriction extends yeast chronological lifespan via a mechanism linking cellular aging to cell cycle regulation, maintenance of quiescence, entry into a non-quiescent state and survival in this state. Our findings suggest that caloric restriction delays yeast chronological aging by causing specific changes in the following: 1) a checkpoint in G1 for cell cycle arrest and entry into a quiescent state; 2) a growth phase in which high-density quiescent cells are committed to become low-density quiescent cells; 3) the differentiation of low-density quiescent cells into low-density non-quiescent cells; and 4) the conversion of high-density quiescent cells into high-density non-quiescent cells.
Collapse
Affiliation(s)
- Anna Leonov
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Rachel Feldman
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Amanda Piano
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | | | - Vicky Lutchman
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Masoumeh Ahmadi
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Sarah Elsaser
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Hana Fakim
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | | | - Asimah Hussain
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | - Sandra Orfali
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | | | | | - Leana Rosanelli
- Department of Biology, Concordia University, Montreal, Quebec, Canada
| | | |
Collapse
|
6
|
Dai L, Ye S, Li HW, Chen DF, Wang HL, Jia SN, Lin C, Yang JS, Yang F, Nagasawa H, Yang WJ. SETD4 Regulates Cell Quiescence and Catalyzes the Trimethylation of H4K20 during Diapause Formation in Artemia. Mol Cell Biol 2017; 37:e00453-16. [PMID: 28031330 DOI: 10.1128/MCB.00453-16] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 12/02/2016] [Indexed: 01/19/2023] Open
Abstract
As a prominent characteristic of cell life, the regulation of cell quiescence is important for proper development, regeneration, and stress resistance and may play a role in certain degenerative diseases. However, the mechanism underlying quiescence remains largely unknown. Encysted embryos of Artemia are useful for studying the regulation of this state because they remain quiescent for prolonged periods during diapause, a state of obligate dormancy. In the present study, SET domain-containing protein 4, a histone lysine methyltransferase from Artemia, was identified, characterized, and named Ar-SETD4. We found that Ar-SETD4 was expressed abundantly in Artemia diapause embryos, in which cells were in a quiescent state. Meanwhile, trimethylated histone H4K20 (H4K20me3) was enriched in diapause embryos. The knockdown of Ar-SETD4 reduced the level of H4K20me3 significantly and prevented the formation of diapause embryos in which neither the cell cycle nor embryogenesis ceased. The catalytic activity of Ar-SETD4 on H4K20me3 was confirmed by an in vitro histone methyltransferase (HMT) assay and overexpression in cell lines. This study provides insights into the function of SETD4 and the mechanism of cell quiescence regulation.
Collapse
|
7
|
Wang N, Docherty F, Brown HK, Reeves K, Fowles A, Lawson M, Ottewell PD, Holen I, Croucher PI, Eaton CL. Mitotic quiescence, but not unique "stemness," marks the phenotype of bone metastasis-initiating cells in prostate cancer. FASEB J 2015; 29:3141-50. [PMID: 25888599 DOI: 10.1096/fj.14-266379] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 03/31/2015] [Indexed: 01/09/2023]
Abstract
This study aimed to identify subpopulations of prostate cancer cells that are responsible for the initiation of bone metastases. Using rapidly dividing human prostate cancer cell lines, we identified mitotically quiescent subpopulations (<1%), which we compared with the rapidly dividing populations for patterns of gene expression and for their ability to migrate to the skeletons of athymic mice. The study used 2-photon microscopy to map the presence/distribution of fluorescently labeled, quiescent cells and luciferase expression to determine the presence of growing bone metastases. We showed that the mitotically quiescent cells were very significantly more tumorigenic in forming bone metastases than fast-growing cells (55 vs. 15%) and had a unique gene expression profile. The quiescent cells were not uniquely stem cell like, with no expression of CD133 but had the same level expression of other putative prostate stem cell markers (CD44 and integrins α2/β1), when compared to the rapidly proliferating population. In addition, mitotic quiescence was associated with very high levels of C-X-C chemokine receptor type 4 (CXCR4) production. Inhibition of CXCR4 activity altered the homing of quiescent tumor cells to bone. Our studies suggest that mitotic dormancy is a unique phenotype that facilitates tumor cell colonization of the skeleton in prostate cancer.
Collapse
Affiliation(s)
- Ning Wang
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Freyja Docherty
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Hannah K Brown
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Kim Reeves
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Anne Fowles
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Michelle Lawson
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Penelope D Ottewell
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Ingunn Holen
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Peter I Croucher
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| | - Colby L Eaton
- *Department of Human Metabolism, Medical School, University of Sheffield, Sheffield, United Kingdom; Breakthrough Breast Cancer Research Unit, Paterson Institute for Cancer Research, Manchester, United Kingdom; Department of Oncology, Medical School, University of Sheffield, Sheffield, United Kingdom; and Bone Biology Division, Garvan Institute of Medical Research, Sydney, Australia
| |
Collapse
|