1
|
Audouze-Chaud J, Mathews JA, Crome SQ. Efficient and stable CRISPR/Cas9-mediated genome-editing of human type 2 innate lymphoid cells. Front Immunol 2023; 14:1275413. [PMID: 37868976 PMCID: PMC10585162 DOI: 10.3389/fimmu.2023.1275413] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/05/2023] [Indexed: 10/24/2023] Open
Abstract
Innate lymphoid cells (ILCs) are a family of innate lymphocytes with important roles in immune response coordination and maintenance of tissue homeostasis. The ILC family includes group 1 (ILC1s), group 2 (ILC2s) and group 3 (ILC3s) 'helper' ILCs, as well as cytotoxic Natural Killer (NK) cells. Study of helper ILCs in humans presents several challenges, including their low proportions in peripheral blood or needing access to rare samples to study tissue resident ILC populations. In addition, the lack of established protocols harnessing genetic manipulation platforms has limited the ability to explore molecular mechanism regulating human helper ILC biology. CRISPR/Cas9 is an efficient genome editing tool that enables the knockout of genes of interest, and is commonly used to study molecular regulation of many immune cell types. Here, we developed methods to efficiently knockout genes of interest in human ILC2s. We discuss challenges and lessons learned from our CRISPR/Cas9 gene editing optimizations using a nucleofection transfection approach and test a range of conditions and nucleofection settings to obtain a protocol that achieves effective and stable gene knockout while maintaining optimal cell viability. Using IL-4 as a representative target, we compare different ribonucleoprotein configurations, as well as assess effects of length of time in culture and other parameters that impact CRISPR/Cas9 transfection efficiency. Collectively, we detail a CRISPR/Cas9 protocol for efficient genetic knockout to aid in studying molecular mechanism regulating human ILC2s.
Collapse
Affiliation(s)
- Johanne Audouze-Chaud
- Department of Immunology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, Ajmera Transplant Centre, University Health Network, Toronto, ON, Canada
| | - Jessica A. Mathews
- Toronto General Hospital Research Institute, Ajmera Transplant Centre, University Health Network, Toronto, ON, Canada
| | - Sarah Q. Crome
- Department of Immunology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, Ajmera Transplant Centre, University Health Network, Toronto, ON, Canada
| |
Collapse
|
2
|
Chikileva IO, Bruter AV, Persiyantseva NA, Zamkova MA, Vlasenko RY, Dolzhikova YI, Shubina IZ, Donenko FV, Lebedinskaya OV, Sokolova DV, Pokrovsky VS, Fedorova PO, Ustyuzhanina NE, Anisimova NY, Nifantiev NE, Kiselevskiy MV. Anti-Cancer Potential of Transiently Transfected HER2-Specific Human Mixed CAR-T and NK Cell Populations in Experimental Models: Initial Studies on Fucosylated Chondroitin Sulfate Usage for Safer Treatment. Biomedicines 2023; 11:2563. [PMID: 37761005 PMCID: PMC10526813 DOI: 10.3390/biomedicines11092563] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Human epidermal growth factor receptor 2 (HER2) is overexpressed in numerous cancer cell types. Therapeutic antibodies and chimeric antigen receptors (CARs) against HER2 were developed to treat human tumors. The major limitation of anti-HER2 CAR-T lymphocyte therapy is attributable to the low HER2 expression in a wide range of normal tissues. Thus, side effects are caused by CAR lymphocyte "on-target off-tumor" reactions. We aimed to develop safer HER2-targeting CAR-based therapy. CAR constructs against HER2 tumor-associated antigen (TAA) for transient expression were delivered into target T and natural killer (NK) cells by an effective and safe non-viral transfection method via nucleofection, excluding the risk of mutations associated with viral transduction. Different in vitro end-point and real-time assays of the CAR lymphocyte antitumor cytotoxicity and in vivo human HER2-positive tumor xenograft mice model proved potent cytotoxic activity of the generated CAR-T-NK cells. Our data suggest transient expression of anti-HER2 CARs in plasmid vectors by human lymphocytes as a safer treatment for HER2-positive human cancers. We also conducted preliminary investigations to elucidate if fucosylated chondroitin sulfate may be used as a possible agent to decrease excessive cytokine production without negative impact on the CAR lymphocyte antitumor effect.
Collapse
Affiliation(s)
- Irina O. Chikileva
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Alexandra V. Bruter
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
| | - Nadezhda A. Persiyantseva
- Research Institute of Carcinogenesis, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (N.A.P.); (M.A.Z.)
| | - Maria A. Zamkova
- Research Institute of Carcinogenesis, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (N.A.P.); (M.A.Z.)
| | - Raimonda Ya. Vlasenko
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Yuliya I. Dolzhikova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Irina Zh. Shubina
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Fedor V. Donenko
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Olga V. Lebedinskaya
- Department of Histology, Embryology and Cytology, EA Vagner Perm State Medical University, 614000 Perm, Russia;
| | - Darina V. Sokolova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Patrice Lumumba Peoples’ Friendship University, 117198 Moscow, Russia
| | - Vadim S. Pokrovsky
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Patrice Lumumba Peoples’ Friendship University, 117198 Moscow, Russia
| | - Polina O. Fedorova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Microbiology, Virology and Immunology Department, Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia
- II Mechnikov Research Institute of Vaccines and Serums, 105064 Moscow, Russia
| | | | - Natalia Yu. Anisimova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Nikolay E. Nifantiev
- ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Mikhail V. Kiselevskiy
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| |
Collapse
|
3
|
Kucharski M, Mrowiec P, Białka S, Misiołek H, Misiołek M, Sechman A, Zięba-Przybylska D, Ocłoń E. Non‑viral transfection methods optimized for miRNA delivery to human dermal fibroblasts. Mol Med Rep 2023; 27:89. [PMID: 36896782 DOI: 10.3892/mmr.2023.12976] [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: 06/17/2022] [Accepted: 01/12/2023] [Indexed: 03/09/2023] Open
Abstract
Fibroblasts are beneficial model cells for in vitro studies and are frequently used in tissue engineering. A number of transfection reagents have been employed to deliver microRNAs (miRNAs/miRs) into cells for genetic manipulation. The present study aimed to establish an effective method of transient miRNA mimic transfection into human dermal fibroblasts. The experimental conditions included three different methods: Physical/mechanical nucleofection, and two lipid‑based methods, Viromer® Blue and INTERFERin®. To evaluate the impact of these methods, cell viability and cytotoxicity assays were performed. The silencing effect of miR‑302b‑3p was revealed to alter the expression levels of its target gene carnitine O‑octanoyltransferase (CROT) by reverse transcription‑quantitative PCR. The present study showed that all selected non‑viral transient transfection systems exhibited good efficiency. It was also confirmed that nucleofection, for which a 21.4‑fold decrease in the expression of the CROT gene was observed 4 h after 50 nM hsa‑miR‑302b‑3p transfection, was the most effective method. However, these results indicated that lipid‑based reagents can maintain the silencing effect of miRNAs up to 72 h after transfection. In summary, these results indicated that nucleofection may be the optimal method for the transport of small miRNA mimics. However, lipid‑based methods allow for the use of lower concentrations of miRNA and maintain longer‑lasting effects.
Collapse
Affiliation(s)
- Mirosław Kucharski
- Department of Animal Physiology and Endocrinology, Anatomy and Genomics, University of Agriculture in Krakow, 30‑059 Krakow, Poland
| | - Patrycja Mrowiec
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Krakow, 30‑059 Krakow, Poland
| | - Szymon Białka
- Department of Anesthesiology and Intensive Care, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40‑055 Katowice, Poland
| | - Hanna Misiołek
- Department of Anesthesiology and Intensive Care, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40‑055 Katowice, Poland
| | - Maciej Misiołek
- Clinical Department of Otorhinolaryngology and Laryngological Oncology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40‑055 Katowice, Poland
| | - Andrzej Sechman
- Department of Animal Physiology and Endocrinology, Anatomy and Genomics, University of Agriculture in Krakow, 30‑059 Krakow, Poland
| | - Dorota Zięba-Przybylska
- Department of Animal Nutrition and Biotechnology, and Fisheries, University of Agriculture in Krakow, 30‑248 Krakow, Poland
| | - Ewa Ocłoń
- Centre for Experimental and Innovative Medicine, Laboratory of Recombinant Proteins Production, University of Agriculture in Krakow, 30‑248 Krakow, Poland
| |
Collapse
|
4
|
Brandt CB, Fonager SV, Haskó J, Helmig RB, Degn S, Bolund L, Jessen N, Lin L, Luo Y. HIF1A Knockout by Biallelic and Selection-Free CRISPR Gene Editing in Human Primary Endothelial Cells with Ribonucleoprotein Complexes. Biomolecules 2022; 13. [PMID: 36671408 DOI: 10.3390/biom13010023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
Primary endothelial cells (ECs), especially human umbilical vein endothelial cells (HUVECs), are broadly used in vascular biology. Gene editing of primary endothelial cells is known to be challenging, due to the low DNA transfection efficiency and the limited proliferation capacity of ECs. We report the establishment of a highly efficient and selection-free CRISPR gene editing approach for primary endothelial cells (HUVECs) with ribonucleoprotein (RNP) complex. We first optimized an efficient and cost-effective protocol for messenger RNA (mRNA) delivery into primary HUVECs by nucleofection. Nearly 100% transfection efficiency of HUVECs was achieved with EGFP mRNA. Using this optimized DNA-free approach, we tested RNP-mediated CRISPR gene editing of primary HUVECs with three different gRNAs targeting the HIF1A gene. We achieved highly efficient (98%) and biallelic HIF1A knockout in HUVECs without selection. The effects of HIF1A knockout on ECs' angiogenic characteristics and response to hypoxia were validated by functional assays. Our work provides a simple method for highly efficient gene editing of primary endothelial cells (HUVECs) in studies and manipulations of ECs functions.
Collapse
|
5
|
Otsuka T, Kan HM, Mason TD, Nair LS, Laurencin CT. Overexpression of NDST1 Attenuates Fibrotic Response in Murine Adipose-Derived Stem Cells. Stem Cells Dev 2022; 31:787-798. [PMID: 35920108 PMCID: PMC9836701 DOI: 10.1089/scd.2022.0053] [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: 02/16/2022] [Accepted: 08/01/2022] [Indexed: 01/22/2023] Open
Abstract
Adipose-derived stem cells (ADSCs) hold tremendous potential for treating diseases and repairing damaged tissues. Heparan sulfate (HS) plays various roles in cellular signaling mechanisms. The importance of HS in stem cell function has been reported and well documented. However, there has been little progress in using HS for therapeutic purposes. We focused on one of the sulfotransferases, NDST1, which influences overall HS chain extent and sulfation pattern, with the expectation to enhance stem cell function by increasing the N-sulfation level. We herein performed transfections of a green fluorescent protein-vector control and NDST1-vector into mouse ADSCs to evaluate stem cell functions. Overexpression of NDST1 suppressed the osteogenic differentiation of ADSCs. There was no pronounced effect observed on the stemness, inflammatory gene expression, nor any noticeable effect in adipogenic and chondrogenic differentiation. Under the tumor necrosis factor-alpha stimulation, NDST1 overexpression induced several chemokine productions that attract neutrophils and macrophages. Finally, we identified an antifibrotic response in ADSCs overexpressing NDST1. This study provides a foundation for the evaluation of HS-related effects in ADSCs undergoing ex vivo gene manipulation.
Collapse
Affiliation(s)
- Takayoshi Otsuka
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, Connecticut, USA
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, Connecticut, USA
| | - Ho-Man Kan
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, Connecticut, USA
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, Connecticut, USA
| | - Timothy D. Mason
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, Connecticut, USA
| | - Lakshmi S. Nair
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, Connecticut, USA
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, Connecticut, USA
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Cato T. Laurencin
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, Connecticut, USA
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, Connecticut, USA
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut, USA
| |
Collapse
|
6
|
Podstawski P, Samiec M, Skrzyszowska M, Szmatoła T, Semik-Gurgul E, Ropka-Molik K. The Induced Expression of BPV E4 Gene in Equine Adult Dermal Fibroblast Cells as a Potential Model of Skin Sarcoid-like Neoplasia. Int J Mol Sci 2022; 23:1970. [PMID: 35216085 DOI: 10.3390/ijms23041970] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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] [Received: 01/26/2022] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023] Open
Abstract
The equine sarcoid is one of the most common neoplasias in the Equidae family. Despite the association of this tumor with the presence of bovine papillomavirus (BPV), the molecular mechanism of this lesion has not been fully understood. The transgenization of equine adult cutaneous fibroblast cells (ACFCs) was accomplished by nucleofection, followed by detection of molecular modifications using high-throughput NGS transcriptome sequencing. The results of the present study confirm that BPV-E4- and BPV-E1^E4-mediated nucleofection strategy significantly affected the transcriptomic alterations, leading to sarcoid-like neoplastic transformation of equine ACFCs. Furthermore, the results of the current investigation might contribute to the creation of in vitro biomedical models suitable for estimating the fates of molecular dedifferentiability and the epigenomic reprogrammability of BPV-E4 and BPV-E4^E1 transgenic equine ACFC-derived sarcoid-like cell nuclei in equine somatic cell-cloned embryos. Additionally, these in vitro models seem to be reliable for thoroughly recognizing molecular mechanisms that underlie not only oncogenic alterations in transcriptomic signatures, but also the etiopathogenesis of epidermal and dermal sarcoid-dependent neoplastic transformations in horses and other equids. For those reasons, the aforementioned transgenic models might be useful for devising clinical treatments in horses afflicted with sarcoid-related neoplasia of cutaneous and subcutaneous tissues.
Collapse
|
7
|
Agostini F, Vicinanza C, Biolo G, Spessotto P, Da Ros F, Lombardi E, Durante C, Mazzucato M. Nucleofection of Adipose Mesenchymal Stem/Stromal Cells: Improved Transfection Efficiency for GMP Grade Applications. Cells 2021; 10:cells10123412. [PMID: 34943920 PMCID: PMC8700287 DOI: 10.3390/cells10123412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/22/2021] [Revised: 11/26/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022] Open
Abstract
Nucleofection (NF) is a safe, non-viral transfection method, compatible with Good Manufacturing Practice guidelines. Such a technique is useful to improve therapeutic effectiveness of adipose tissue mesenchymal stem cells (ASC) in clinical settings, but improvement of NF efficiency is mandatory. Supernatant rich in growth factors (SRGF) is a clinical-grade medium additive for ASC expansion. We showed a dramatically increased NF efficiency and post-transfection viability in ASC expanded in presence of SRGF (vs. fetal bovine serum). SRGF expanded ASC were characterized by increased vesicle endocytosis but lower phagocytosis properties. SRGF increased n-6/n-3 ratio, reduced membrane lipid raft occurrence, and lowered intracellular actin content in ASC. A statistical correlation between NF efficiency and lipid raft availability on cell membranes was shown, even though a direct relationship could not be demonstrated: attempts to selectively modulate lipid rafts levels were, in fact, limited by technical constraints. In conclusion, we reported for the first time that tuning clinical-grade compatible cell culture conditions can significantly improve ASC transfection efficiency by a non-viral and safe approach. A deep mechanistic characterization is extremely complex, but we can hypothesize that integrated changes in membrane structure and intracellular actin content could contribute to explain SRGF impact on ASC NF efficiency.
Collapse
Affiliation(s)
- Francesco Agostini
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
- Correspondence: ; Tel.: +39-0434-659095
| | - Carla Vicinanza
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
| | - Gianni Biolo
- Unit of Internal Medicine, Clinica Medica, Department of Medical Surgical and Health Sciences, University of Trieste, Strada di Fiume 447, 34100 Trieste, Italy;
| | - Paola Spessotto
- Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy;
| | - Francesco Da Ros
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
| | - Elisabetta Lombardi
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
| | - Cristina Durante
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
| | - Mario Mazzucato
- Stem Cell Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Via F. Gallini 2, 33081 Aviano, Italy; (C.V.); (F.D.R.); (E.L.); (C.D.); (M.M.)
| |
Collapse
|
8
|
Huang RS, Lai MC, Lin S. Ex Vivo Expansion and CRISPR-Cas9 Genome Editing of Primary Human Natural Killer Cells. Curr Protoc 2021; 1:e246. [PMID: 34529358 DOI: 10.1002/cpz1.246] [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: 06/13/2023]
Abstract
Natural killer (NK) cells are potent innate immune cells that provide the surveillance and elimination of infected, stressed, and malignant cells. The unique immune recognition mechanisms and functions of NK cells make them an attractive cell type for immunology research and adoptive immunotherapy. However, primary NK cells are challenging to culture ex vivo and lack efficient genetic tools, hindering the research of NK cells and the development of NK cell therapeutics. Here we describe methods for the freeze-thaw process, feeder-free ex vivo expansion, CRISPR-Cas9 genome editing, and functional characterizations of primary human NK cells. Our protocol enables ∼30-fold and ∼2000-fold average expansion rates from 1 × 107 cryopreserved NK cells in 14 and 28 days, respectively. We also detail methods for CRISPR gene knockout and knockin by nucleofection of Cas9 ribonucleoproteins (RNP) and DNA repair templates. Gene knockout by Cas9 RNP nucleofection can be multiplexed to simultaneously target three genes. The CRISPR-edited cells can be cryopreserved and rethawed with high viability for future studies. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Thawing of natural killer cells Basic Protocol 2: Ex vivo expansion of natural killer cells Basic Protocol 3: Cryopreservation of expanded natural killer cells Basic Protocol 4: Characterization of natural killer cells: Flow cytometry and surface marker analysis Basic Protocol 5: Cytotoxicity and degranulation assays Basic Protocol 6: Preparation of homology-directed repair templates Basic Protocol 7: Nucleofection of CRISPR-Cas9 ribonucleoproteins Basic Protocol 8: Genotyping of gene-edited natural killer cells Basic Protocol 9: Phenotyping of gene-edited natural killer cells.
Collapse
Affiliation(s)
- Rih-Sheng Huang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Min-Chi Lai
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Steven Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
9
|
Huang RS, Shih HA, Lai MC, Chang YJ, Lin S. Enhanced NK-92 Cytotoxicity by CRISPR Genome Engineering Using Cas9 Ribonucleoproteins. Front Immunol 2020; 11:1008. [PMID: 32528479 PMCID: PMC7256201 DOI: 10.3389/fimmu.2020.01008] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [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] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/28/2020] [Indexed: 12/26/2022] Open
Abstract
Natural killer (NK) cells are an attractive cell-type for adoptive immunotherapy, but challenges in preparation of therapeutic primary NK cells restrict patient accessibility to NK cell immunotherapy. NK-92 is a well-characterized human NK cell line that has demonstrated promising anti-cancer activities in clinical trials. Unlimited proliferation of NK-92 cells provides a consistent supply of cells for the administration and development of NK cell immunotherapy. However, the clinical efficacy of NK-92 cells has not reached its full potential due to reduced immune functions as compared to primary NK cells. Improvements of NK-92 functions currently rely on conventional transgene delivery by mRNA, plasmid and viral vector with limited efficiencies. To enable precise genetic modifications, we have established a robust CRISPR genome engineering platform for NK-92 based on the nucleofection of Cas9 ribonucleoprotein. To demonstrate the versatility of the platform, we have performed cell-based screening of Cas9 guide RNA, multiplex gene knockout of activating and inhibitory receptors, knock-in of a fluorescent gene, and promoter insertion to reactivate endogenous CD16 and DNAM-1. The CRISPR-engineered NK-92 demonstrated markedly enhanced cytotoxicity and could mediate antibody-dependent cellular cytotoxicity against hard to kill cancer cell lines. Our genome editing platform is straightforward and robust for both functional studies and therapeutic engineering of NK-92 cells.
Collapse
MESH Headings
- Antibody-Dependent Cell Cytotoxicity
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/metabolism
- CRISPR-Associated Protein 9/genetics
- CRISPR-Associated Protein 9/metabolism
- CRISPR-Cas Systems
- Cell Survival
- Clustered Regularly Interspaced Short Palindromic Repeats
- GPI-Linked Proteins/genetics
- GPI-Linked Proteins/metabolism
- Gene Expression Regulation
- Gene Targeting
- HEK293 Cells
- HeLa Cells
- Humans
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Neoplasms/immunology
- Neoplasms/metabolism
- Neoplasms/pathology
- Neoplasms/therapy
- RNA, Guide, CRISPR-Cas Systems/genetics
- RNA, Guide, CRISPR-Cas Systems/metabolism
- Receptors, IgG/genetics
- Receptors, IgG/metabolism
Collapse
Affiliation(s)
- Rih-Sheng Huang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Hsin-An Shih
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Min-Chi Lai
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Yao-Jen Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Steven Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
10
|
Stadnicka K, Dębowska M, Dębski J, Bajek A. Secreting oviduct epithelial cells of Coturnix coturnix japonica (QOEC) and changes to their proteome after nonviral transfection. J Cell Biochem 2019; 120:12724-12739. [PMID: 30854717 DOI: 10.1002/jcb.28541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 12/07/2018] [Revised: 02/13/2019] [Accepted: 02/21/2019] [Indexed: 02/04/2023]
Abstract
The quail oviduct (Coturnix c. japonica) is a natural candidate avian bioreactor, while the secretive quail oviduct epithelial cells (QOECs) are potential in vitro producers of recombinant proteins and vaccines. In view of the need for highly performing and transformable cell lines, QOEC may potentially act as an alternative bioreactor platform to the existing ones, for example, to the Chinese hamster ovary. The aim of this work was to characterize QOECs and their response to nucleofection with a nonviral plasmid DNA carrying the human interferon-α 2a gene (hIFNλ2a), in vitro. Primary QOEC cultures from laying quails (10-15 weeks old) were characterized by their proliferation rate, doubling time, and multilineage differentiation. Electroporation to cell nuclei (nucleofection) was used to deliver nonviral plasmid DNA containing a reporter GFP and hIFN under the ovalbumin promoter. The posttransfection analysis included polymerase chain reaction, Western blot analysis, and liquid chromatography coupled to tandem mass spectrometry. QOEC showed a typical epithelial characteristic in a primary 2D monolayer culture system and retained secretive potential up to the first passage. QOEC showed differentiation into osteoblastic lineage after stimulation. The nucleofection mean efficiency was low (2.3%). Differences of up to 10% in the proteomic profiles between nontransfected and transfected QOEC were found, the most important of these were related to the absence of keratins and cell-adhesion proteins in the transfected QOEC. Concluding, with the practical information provided here, QOEC have the potential to serve as an avian secreting cellular platform. QOEC may be further transformed to cell lineage to meet the requirement for a stable, electrocompetent, and transfectable model. The first proteomic comparison of QOEC delivered in this study showed, in the majority, a stable proteome of the nontransfected vs transfected QOEC.
Collapse
Affiliation(s)
- Katarzyna Stadnicka
- Department of Animal Biotechnology and Genetics, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Bydgoszcz, Poland
| | - Michalina Dębowska
- Department of Animal Biotechnology and Genetics, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Bydgoszcz, Poland
| | - Janusz Dębski
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics-Polish Academy of Sciences, Warsaw, Poland
| | - Anna Bajek
- Department of Tissue Engineering, Nicolaus Copernicus University, Bydgoszcz, Poland
| |
Collapse
|
11
|
Abstract
Differentiation of human fibroblasts into functional neurons depends on the introduction of viral-mediated transcription factors, which present risks of viral gene integration and tumorigenicity. In recent years, although some studies have been successful in directly inducing neurons through sustained expression of small molecule compounds, they have only been shown to be effective on mouse-derived cells. Thus, herein we delivered vectors containing Epstein-Barr virus-derived oriP/Epstein-Barr nuclear antigen 1 encoding the neuronal transcription factor, Ascl1, the neuron-specific microRNA, miR124, and a small hairpin directed against p53, into human fibroblasts. Cells were incubated in a neuron-inducing culture medium. Immunofluorescence staining was used to detect Tuj-1, microtubule-associated protein 2, neuron-specific nucleoprotein NeuN and nerve cell adhesion molecules in the induced cells. The proportion of Tuj1-positive cells was up to 36.7% after induction for 11 days. From day 21, these induced neurons showed neuron-specific expression patterns of microtubule-associated protein 2, NeuN and neural cell adhesion molecule. Our approach is a simple, plasmid-based process that enables direct reprogramming of human fibroblasts into neurons, and provides alternative avenues for disease modeling and neurodegenerative medicine.
Collapse
Affiliation(s)
- Shao-Bing Dai
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Ting Shen
- Department of Neurology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Ting-Ting Zheng
- Department of Neurology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jia-Li Pu
- Department of Neurology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Xin-Zhong Chen
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| |
Collapse
|
12
|
Abstract
CRISPR/Cas9 has enabled the rapid and efficient generation of gene knockouts across various cell types of several species. T cells are central players in adaptive immune responses. Gene editing in primary T cells not only represents a valuable research tool, but is also critical for next generation immunotherapies, such as CAR T cells. Broad application of CRIPSR/Cas9 for gene editing in primary T cells has been hampered by limitations in transfection efficiency and the requirement for TCR stimulation. In this article, we provide a detailed protocol for Cas9/gRNA ribonucleoprotein (RNP) transfection of primary mouse and human T cells without the need for TCR stimulation that achieves near complete loss of target gene expression at the population level. This approach enables rapid target discovery and validation in both mouse and human primary T cells. © 2018 by John Wiley & Sons, Inc.
Collapse
Affiliation(s)
- Soyoung A Oh
- Department of Cancer Immunology, Genentech, South San Francisco, California
| | - Akiko Seki
- Department of Cancer Immunology, Genentech, South San Francisco, California
| | - Sascha Rutz
- Department of Cancer Immunology, Genentech, South San Francisco, California
| |
Collapse
|
13
|
Tang L, Bondareva A, González R, Rodriguez-Sosa JR, Carlson DF, Webster D, Fahrenkrug S, Dobrinski I. TALEN-mediated gene targeting in porcine spermatogonia. Mol Reprod Dev 2018; 85:250-261. [PMID: 29393557 DOI: 10.1002/mrd.22961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 12/15/2017] [Revised: 01/22/2018] [Accepted: 01/25/2018] [Indexed: 01/05/2023]
Abstract
Spermatogonia represent a diploid germ cell population that includes spermatogonial stem cells. In this report, we describe new methods for isolation of highly enriched porcine spermatogonia based on light scatter properties, and for targeted mutagenesis in porcine spermatogonia using nucleofection and TALENs. We optimized a nucleofection protocol to deliver TALENs specifically targeting the DMD locus in porcine spermatogonia. We also validated specific sorting of porcine spermatogonia based on light scatter properties. We were able to obtain a highly enriched germ cell population with over 90% of cells being UCH-L1 positive undifferentiated spermatogonia. After gene targeting in porcine spermatogonia, indel (insertion or deletion) mutations as a result of non-homologous end joining (NHEJ) were detected in up to 18% of transfected cells. Our report demonstrates for the first time an approach to obtain a live cell population highly enriched in undifferentiated spermatogonia from immature porcine testes, and that gene targeting can be achieved in porcine spermatogonia which will enable germ line modification.
Collapse
Affiliation(s)
- Lin Tang
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Alla Bondareva
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Raquel González
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Jose R Rodriguez-Sosa
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | | | | | | | - Ina Dobrinski
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| |
Collapse
|
14
|
Abstract
Embryonic and induced pluripotent stem cells can self-renew and differentiate into multiple cell types of the body. The pluripotent cells are thus coveted for research in regenerative medicine and are currently in clinical trials for eye diseases, diabetes, heart diseases, and other disorders. The potential to differentiate into specialized cell types coupled with the recent advances in genome editing technologies including the CRISPR/Cas system have provided additional opportunities for tailoring the genome of iPSC for varied applications including disease modeling, gene therapy, and biasing pathways of differentiation, to name a few. Among the available editing technologies, the CRISPR/Cas9 from Streptococcus pyogenes has emerged as a tool of choice for site-specific editing of the eukaryotic genome. The CRISPRs are easily accessible, inexpensive, and highly efficient in engineering targeted edits. The system requires a Cas9 nuclease and a guide sequence (20-mer) specific to the genomic target abutting a 3-nucleotide "NGG" protospacer-adjacent-motif (PAM) for targeting Cas9 to the desired genomic locus, alongside a universal Cas9 binding tracer RNA (together called single guide RNA or sgRNA). Here we present a step-by-step protocol for efficient generation of feeder-independent and footprint-free iPSC and describe methodologies for genome editing of iPSC using the Cas9 ribonucleoprotein (RNP) complexes. The genome editing protocol is effective and can be easily multiplexed by pre-complexing sgRNAs for more than one target with the Cas9 protein and simultaneously delivering into the cells. Finally, we describe a simplified approach for identification and characterization of iPSCs with desired edits. Taken together, the outlined strategies are expected to streamline generation and editing of iPSC for manifold applications.
Collapse
Affiliation(s)
- Anjali Nandal
- Department of Animal and Avian Sciences, University of Maryland; Animal Bioscience and Biotechnology Laboratory, ARS, USDA
| | - Barbara Mallon
- NIH Stem Cell Unit, Bethesda, National Institutes of Health
| | - Bhanu P Telugu
- Department of Animal and Avian Sciences, University of Maryland; Animal Bioscience and Biotechnology Laboratory, ARS, USDA; RenOVAte Biosciences Inc;
| |
Collapse
|
15
|
Abstract
Nucleofection of chondrocytes has been shown to be an adequate method of transfection. Using Amaxa's nucleofection system, transfection efficiencies up to 89% were achievable for vector (pmaxGFP) and 98% for siRNA (siGLO) into passaged chondrocytes. However, such methods rely on costly commercial kits with proprietary reagents limiting its use in basic science labs and in clinical translation. Bovine-passaged chondrocytes were plated in serum reduced media conditionsand then nucleofected using various in laboratory-produced buffers. Cell attachment, confluency, viability, and transfection efficiency was assessed following nucleofection. For each parameter the buffers were scored and a final rank for each buffer was determined. Buffer denoted as 1M resulted in no significant difference for cell attachment, confluency, and viability as compared to non-nucleofected controls. Nucleofection in 1M buffer, in the absence of DNA vectors, resulted in increased col2, ki67, ccnd1 mRNA levels, and decreased col1 mRNA levels at 4 days of culture. Flow cytometry revealed that the transfection efficiency of 1M buffer was comparable to that obtained using the Amaxa commercial kit. siRNA designed against lamin A/C resulted in an average reduction of lamin A and C proteins to 19% and 8% of control levels, respectively. This study identifies a cost-effective, efficient method of nonviral nucleofection of bovine-passaged chondrocytes using known buffer formulations. Human-passaged chondrocytes could also be successfully nucleofected in 1M buffer. Thus this method should facilitate cost-efficient gene targeting of cells used for articular cartilage repair in a research setting.
Collapse
Affiliation(s)
- Justin Parreno
- Lunenfeld-Tanenbaum Research Insitute, Toronto, Ontario, Canada,Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Elizabeth Delve
- Lunenfeld-Tanenbaum Research Insitute, Toronto, Ontario, Canada,Institute of Biomaterials and Bioengineering, University of Toronto, Ontario, Canada
| | - Katarina Andrejevic
- Lunenfeld-Tanenbaum Research Insitute, Toronto, Ontario, Canada,Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | | | - Po-han Wu
- Lunenfeld-Tanenbaum Research Insitute, Toronto, Ontario, Canada
| | - Rita Kandel
- Lunenfeld-Tanenbaum Research Insitute, Toronto, Ontario, Canada,Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada,Institute of Biomaterials and Bioengineering, University of Toronto, Ontario, Canada,Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada,Rita Kandel, Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario, M5G 1X5, Canada.
| |
Collapse
|
16
|
Yu L, Reynaud F, Falk J, Spencer A, Ding YD, Baumlé V, Lu R, Castellani V, Yuan C, Rudkin BB. Highly efficient method for gene delivery into mouse dorsal root ganglia neurons. Front Mol Neurosci 2015; 8:2. [PMID: 25698920 PMCID: PMC4313362 DOI: 10.3389/fnmol.2015.00002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 11/06/2014] [Accepted: 01/06/2015] [Indexed: 01/21/2023] Open
Abstract
The development of gene transfection technologies has greatly advanced our understanding of life sciences. While use of viral vectors has clear efficacy, it requires specific expertise and biological containment conditions. Electroporation has become an effective and commonly used method for introducing DNA into neurons and in intact brain tissue. The present study describes the use of the Neon® electroporation system to transfect genes into dorsal root ganglia neurons isolated from embryonic mouse Day 13.5–16. This cell type has been particularly recalcitrant and refractory to physical or chemical methods for introduction of DNA. By optimizing the culture condition and parameters including voltage and duration for this specific electroporation system, high efficiency (60–80%) and low toxicity (>60% survival) were achieved with robust differentiation in response to Nerve growth factor (NGF). Moreover, 3–50 times fewer cells are needed (6 × 104) compared with other traditional electroporation methods. This approach underlines the efficacy of this type of electroporation, particularly when only limited amount of cells can be obtained, and is expected to greatly facilitate the study of gene function in dorsal root ganglia neuron cultures.
Collapse
Affiliation(s)
- Lingli Yu
- Differentiation and Cell Cycle Group, Laboratoire de Biologie Moléculaire de la Cellule, UMR 5239, Centre National de la Recherche Scientifique, Ecole normale Supérieure de Lyon, University of Lyon 1 Claude Bernard, University of Lyon Lyon, France ; Laboratory of Molecular and Cellular Neurophysiology, East China Normal University Shanghai, China ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Florie Reynaud
- Centre de Génétique et Physiologie Moléculaire et Cellulaire, UMR Centre National de la Recherche Scientifique 5534, University of Lyon 1 Claude Bernard, University of Lyon Villeurbanne, France
| | - Julien Falk
- Centre de Génétique et Physiologie Moléculaire et Cellulaire, UMR Centre National de la Recherche Scientifique 5534, University of Lyon 1 Claude Bernard, University of Lyon Villeurbanne, France
| | - Ambre Spencer
- Differentiation and Cell Cycle Group, Laboratoire de Biologie Moléculaire de la Cellule, UMR 5239, Centre National de la Recherche Scientifique, Ecole normale Supérieure de Lyon, University of Lyon 1 Claude Bernard, University of Lyon Lyon, France ; Laboratory of Molecular and Cellular Neurophysiology, East China Normal University Shanghai, China ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Yin-Di Ding
- Differentiation and Cell Cycle Group, Laboratoire de Biologie Moléculaire de la Cellule, UMR 5239, Centre National de la Recherche Scientifique, Ecole normale Supérieure de Lyon, University of Lyon 1 Claude Bernard, University of Lyon Lyon, France ; Laboratory of Molecular and Cellular Neurophysiology, East China Normal University Shanghai, China ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Véronique Baumlé
- Differentiation and Cell Cycle Group, Laboratoire de Biologie Moléculaire de la Cellule, UMR 5239, Centre National de la Recherche Scientifique, Ecole normale Supérieure de Lyon, University of Lyon 1 Claude Bernard, University of Lyon Lyon, France ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Ruisheng Lu
- Laboratory of Molecular and Cellular Neurophysiology, East China Normal University Shanghai, China ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Valérie Castellani
- Centre de Génétique et Physiologie Moléculaire et Cellulaire, UMR Centre National de la Recherche Scientifique 5534, University of Lyon 1 Claude Bernard, University of Lyon Villeurbanne, France
| | - Chonggang Yuan
- Differentiation and Cell Cycle Group, Laboratoire de Biologie Moléculaire de la Cellule, UMR 5239, Centre National de la Recherche Scientifique, Ecole normale Supérieure de Lyon, University of Lyon 1 Claude Bernard, University of Lyon Lyon, France ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| | - Brian B Rudkin
- Laboratory of Molecular and Cellular Neurophysiology, East China Normal University Shanghai, China ; Joint Laboratory of Neuropathogenesis, Key Laboratory of Brain Functional Genomics, Chinese Ministry of Education, East China Normal University, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon Shanghai, China
| |
Collapse
|
17
|
Zanin MP, Hellström M, Shepherd RK, Harvey AR, Gillespie LN. Development of a cell-based treatment for long-term neurotrophin expression and spiral ganglion neuron survival. Neuroscience 2014; 277:690-9. [PMID: 25088914 DOI: 10.1016/j.neuroscience.2014.07.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 03/12/2014] [Revised: 06/13/2014] [Accepted: 07/18/2014] [Indexed: 12/13/2022]
Abstract
Spiral ganglion neurons (SGNs), the target cells of the cochlear implant, undergo gradual degeneration following loss of the sensory epithelium in deafness. The preservation of a viable population of SGNs in deafness can be achieved in animal models with exogenous application of neurotrophins such as brain-derived neurotrophic factor (BDNF) and neurotrophin-3. For translation into clinical application, a suitable delivery strategy that provides ongoing neurotrophic support and promotes long-term SGN survival is required. Cell-based neurotrophin treatment has the potential to meet the specific requirements for clinical application, and we have previously reported that Schwann cells genetically modified to express BDNF can support SGN survival in deafness for 4 weeks. This study aimed to investigate various parameters important for the development of a long-term cell-based neurotrophin treatment to support SGN survival. Specifically, we investigated different (i) cell types, (ii) gene transfer methods and (iii) neurotrophins, in order to determine which variables may provide long-term neurotrophin expression and which, therefore, may be the most effective for supporting long-term SGN survival in vivo. We found that fibroblasts that were nucleofected to express BDNF provided the most sustained neurotrophin expression, with ongoing BDNF expression for at least 30 weeks. In addition, the secreted neurotrophin was biologically active and elicited survival effects on SGNs in vitro. Nucleofected fibroblasts may therefore represent a method for safe, long-term delivery of neurotrophins to the deafened cochlea to support SGN survival in deafness.
Collapse
Affiliation(s)
- M P Zanin
- Bionics Institute, Melbourne, Australia
| | - M Hellström
- School of Anatomy, Physiology and Human Biology, The University of Western Australia, Australia
| | - R K Shepherd
- Bionics Institute, Melbourne, Australia; Department of Medical Bionics, University of Melbourne, Australia
| | - A R Harvey
- School of Anatomy, Physiology and Human Biology, The University of Western Australia, Australia
| | - L N Gillespie
- Bionics Institute, Melbourne, Australia; Department of Medical Bionics, University of Melbourne, Australia.
| |
Collapse
|
18
|
Bowles R, Patil S, Pincas H, Sealfon SC. Validation of efficient high-throughput plasmid and siRNA transfection of human monocyte-derived dendritic cells without cell maturation. J Immunol Methods 2010; 363:21-8. [PMID: 20875421 PMCID: PMC3964480 DOI: 10.1016/j.jim.2010.09.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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: 09/14/2010] [Accepted: 09/17/2010] [Indexed: 12/25/2022]
Abstract
Transfection of primary immune cells is difficult to achieve at high efficiency and without cell activation and maturation. Dendritic cells (DCs) represent a key link between the innate and adaptive immune systems. Delineating the signaling pathways involved in the activation of human primary DCs and reverse engineering cellular inflammatory pathways have been challenging tasks. We optimized and validated an effective high-throughput transfection protocol, allowing us to transiently express DNA in naïve primary DCs, as well as investigate the effect of gene silencing by RNA interference. Using a high-throughput nucleofection system, monocyte-derived DCs were nucleoporated with a plasmid expressing green fluorescent protein (GFP), and transfection efficiency was determined by flow cytometry, based on GFP expression. To evaluate the effect of nucleoporation on DC maturation, the expression of cell surface markers CD86 and MHCII in GFP-positive cells was analyzed by flow cytometry. We established optimal assay conditions with a cell viability reaching 70%, a transfection efficiency of over 50%, and unchanged CD86 and MHCII expression. We examined the impact of small interfering RNA (siRNA)-mediated knockdown of RIG-I, a key viral recognition receptor, on the induction of the interferon (IFN) response in DCs infected with Newcastle disease virus. RIG-I protein was undetectable by Western blot in siRNA-treated cells. RIG-I knockdown caused a 75% reduction in the induction of IFNβ mRNA compared with the negative control siRNA. This protocol should be a valuable tool for probing the immune response pathways activated in human DCs.
Collapse
Affiliation(s)
| | | | - Hanna Pincas
- Center for Translational Systems Biology and Department of Neurology, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Stuart C. Sealfon
- Center for Translational Systems Biology and Department of Neurology, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029, USA
| |
Collapse
|
19
|
Phuket TRN, Covarrubias M. Kv4 Channels Underlie the Subthreshold-Operating A-type K-current in Nociceptive Dorsal Root Ganglion Neurons. Front Mol Neurosci 2009; 2:3. [PMID: 19668710 PMCID: PMC2724030 DOI: 10.3389/neuro.02.003.2009] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [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: 04/25/2009] [Accepted: 06/08/2009] [Indexed: 01/29/2023] Open
Abstract
The dorsal root ganglion (DRG) contains heterogeneous populations of sensory neurons including primary nociceptive neurons and C-fibers implicated in pain signaling. Recent studies have demonstrated DRG hyperexcitability associated with downregulation of A-type K+ channels; however, the molecular correlate of the corresponding A-type K+ current (IA) has remained hypothetical. Kv4 channels may underlie the IA in DRG neurons. We combined electrophysiology, molecular biology (Whole-Tissue and Single-Cell RT-PCR) and immunohistochemistry to investigate the molecular basis of the IA in acutely dissociated DRG neurons from 7- to 8-day-old rats. Whole-cell recordings demonstrate a robust tetraethylammonium-resistant (20 mM) and 4-aminopyridine-sensitive (5 mM) IA. Matching Kv4 channel properties, activation and inactivation of this IA occur in the subthreshold range of membrane potentials and the rate of recovery from inactivation is rapid and voltage-dependent. Among Kv4 transcripts, the DRG expresses significant levels of Kv4.1 and Kv4.3 mRNAs. Also, single small-medium diameter DRG neurons (∼30 μm) exhibit correlated frequent expression of mRNAs encoding Kv4.1 and Nav1.8, a known nociceptor marker. In contrast, the expressions of Kv1.4 and Kv4.2 mRNAs at the whole-tissue and single-cell levels are relatively low and infrequent. Kv4 protein expression in nociceptive DRG neurons was confirmed by immunohistochemistry, which demonstrates colocalization of Kv4.3 and Nav1.8, and negligible expression of Kv4.2. Furthermore, specific dominant-negative suppression and overexpression strategies confirmed the contribution of Kv4 channels to IA in DRG neurons. Contrasting the expression patterns of Kv4 channels in the central and peripheral nervous systems, we discuss possible functional roles of these channels in primary sensory neurons.
Collapse
Affiliation(s)
- Thanawath Ratanadilok Na Phuket
- Department of Pathology, Anatomy, and Cell Biology, Jefferson Medical College of Thomas Jefferson University Philadelphia, PA, USA
| | | |
Collapse
|
20
|
Moulin M, Arrigo AP. Caspases activation in hyperthermia-induced stimulation of TRAIL apoptosis. Cell Stress Chaperones 2008; 13:313-26. [PMID: 18330721 PMCID: PMC2673937 DOI: 10.1007/s12192-008-0027-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [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: 12/18/2007] [Revised: 01/30/2008] [Accepted: 02/01/2008] [Indexed: 10/22/2022] Open
Abstract
In leukemia cells, hyperthermia enhances tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis. The phenomenon is caspase-dependent and results in membrane changes leading to an increased recognition of TRAIL death receptors by TRAIL. Because either caspase-2 or an apical proteolytic event has been recently proposed to act as an initiator of the cell death mechanism induced by heat shock, we have investigated the hierarchy of caspase activation in cells exposed to the combined heat shock plus TRAIL treatment. We report here that caspases-2, -3, and -8 were the first caspases to be activated. As expected, caspase-8 is required and indispensable during the initiation of this death signaling. Caspase-2 may also participate in the phenomenon but, in contrast to caspase-8, its presence appears dispensable because its depletion by small interfering RNA is devoid of effects. Our observations also suggest a role of caspase-3 and of a particular cleaved form of this caspase during the early signals of heat shock plus TRAIL-induced apoptosis.
Collapse
Affiliation(s)
- Maryline Moulin
- Laboratoire Stress, Chaperons et Mort Cellulaire, CNRS UMR 5534, Centre de Génétique Moléculaire et Cellulaire, Université Claude Bernard Lyon-1, 16 rue Dubois, 69622 Villeurbanne Cedex, France
| | - André-Patrick Arrigo
- Laboratoire Stress, Chaperons et Mort Cellulaire, CNRS UMR 5534, Centre de Génétique Moléculaire et Cellulaire, Université Claude Bernard Lyon-1, 16 rue Dubois, 69622 Villeurbanne Cedex, France
| |
Collapse
|
21
|
Keravala A, Ormerod BK, Palmer TD, Calos MP. Long-term transgene expression in mouse neural progenitor cells modified with phiC31 integrase. J Neurosci Methods 2008; 173:299-305. [PMID: 18606184 PMCID: PMC2615000 DOI: 10.1016/j.jneumeth.2008.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [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: 02/28/2008] [Revised: 06/09/2008] [Accepted: 06/10/2008] [Indexed: 11/27/2022]
Abstract
Stem cells can potentially be utilized in combined gene/cell therapies for neural diseases. We examined the ability of the non-viral phiC31 integrase system to promote stable transgene expression in mouse neural progenitor cells (mNPCs). phiC31 integrase catalyzes the sequence-specific integration of attB-containing plasmids into pseudo attP sites in mammalian genomes, to produce long-term transgene expression. We achieved gene transfer by co-nucleofection of a plasmid carrying the luciferase marker gene and an attB site and a plasmid expressing integrase in mNPCs that had been generated in a neurosphere preparation. Luciferase expression was quantified in live cells for 8 weeks, revealing persistence of gene expression. Sequence-specific integration at a preferred pseudo attP site in the mouse genome was detected by using PCR. Furthermore, sustained transgene expression was demonstrated in genetically modified NPCs that were cultured in conditions that promoted either growth or differentiation into neurons and astrocytes. Our results demonstrate that the phiC31 integrase system produces stable transgene expression in adult mNPCs and their progeny and may be useful in strategies for combating neurodegenerative disorders.
Collapse
Affiliation(s)
- Annahita Keravala
- Department of Genetics, Stanford University School of Medicine, Stanford. CA 94305
| | - Brandi K. Ormerod
- Department of Neuroscience, Stanford University School of Medicine, Stanford. CA 94305
| | - Theo D. Palmer
- Department of Neuroscience, Stanford University School of Medicine, Stanford. CA 94305
| | - Michele P. Calos
- Department of Genetics, Stanford University School of Medicine, Stanford. CA 94305
| |
Collapse
|
22
|
Schakowski F, Buttgereit P, Mazur M, Märten A, Schöttker B, Gorschlüter M, Schmidt-Wolf IGH. Novel non-viral method for transfection of primary leukemia cells and cell lines. Genet Vaccines Ther 2004; 2:1. [PMID: 14715084 PMCID: PMC331421 DOI: 10.1186/1479-0556-2-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2003] [Accepted: 01/12/2004] [Indexed: 11/12/2022]
Abstract
BACKGROUND: Tumor cells such as leukemia and lymphoma cells are possible targets for gene therapy. However, previously leukemia and lymphoma cells have been demonstrated to be resistant to most of non-viral gene transfer methods. METHODS: The aim of this study was to analyze various methods for transfection of primary leukemia cells and leukemia cell lines and to improve the efficiency of gene delivery. Here, we evaluated a novel electroporation based technique called nucleofection. This novel technique uses a combination of special electrical parameters and specific solutions to deliver the DNA directly to the cell nucleus under mild conditions. RESULTS: Using this technique for gene transfer up to 75% of primary cells derived from three acute myeloid leukemia (AML) patients and K562 cells were transfected with the green flourescent protein (GFP) reporter gene with low cytotoxicity. In addition, 49(+/- 9.7%) of HL60 leukemia cells showed expression of GFP. CONCLUSION: The non-viral transfection method described here may have an impact on the use of primary leukemia cells and leukemia cell lines in cancer gene therapy.
Collapse
Affiliation(s)
- Frank Schakowski
- Medizinische Klinik und Poliklinik I, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| | - Peter Buttgereit
- Medizinische Klinik und Poliklinik I, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| | - Martin Mazur
- Medizinische Klinik und Poliklinik I, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| | - Angela Märten
- Present address: Chirurgische Klinik, Universität Heidelberg, Germany
| | | | - Marcus Gorschlüter
- Medizinische Klinik und Poliklinik I, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| | - Ingo GH Schmidt-Wolf
- Medizinische Klinik und Poliklinik I, Rheinische Friedrich-Wilhelms-Universität, Bonn, Germany
| |
Collapse
|