1
|
Huang Y, Osouli A, Pham J, Mancino V, O'Grady C, Khan T, Chaudhuri B, Pastor-Soler NM, Hallows KR, Chung EJ. Investigation of Basolateral Targeting Micelles for Drug Delivery Applications in Polycystic Kidney Disease. Biomacromolecules 2024; 25:2749-2761. [PMID: 38652072 DOI: 10.1021/acs.biomac.3c01397] [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: 04/25/2024]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is a complex disorder characterized by uncontrolled renal cyst growth, leading to kidney function decline. The multifaceted nature of ADPKD suggests that single-pathway interventions using individual small molecule drugs may not be optimally effective. As such, a strategy encompassing combination therapy that addresses multiple ADPKD-associated signaling pathways could offer synergistic therapeutic results. However, severe off-targeting side effects of small molecule drugs pose a major hurdle to their clinical transition. To address this, we identified four drug candidates from ADPKD clinical trials, bardoxolone methyl (Bar), octreotide (Oct), salsalate (Sal), and pravastatin (Pra), and incorporated them into peptide amphiphile micelles containing the RGD peptide (GRGDSP), which binds to the basolateral surface of renal tubules via integrin receptors on the extracellular matrix. We hypothesized that encapsulating drug combinations into RGD micelles would enable targeting to the basolateral side of renal tubules, which is the site of disease, via renal secretion, leading to superior therapeutic benefits compared to free drugs. To test this, we first evaluated the synergistic effect of drug combinations using the 20% inhibitory concentration for each drug (IC20) on renal proximal tubule cells derived from Pkd1flox/-:TSLargeT mice. Next, we synthesized and characterized the RGD micelles encapsulated with drug combinations and measured their in vitro therapeutic effects via a 3D PKD growth model. Upon both IV and IP injections in vivo, RGD micelles showed a significantly higher accumulation in the kidneys compared to NT micelles, and the renal access of RGD micelles was significantly reduced after the inhibition of renal secretion. Specifically, both Bar+Oct and Bar+Sal in the RGD micelle treatment showed enhanced therapeutic efficacy in ADPKD mice (Pkd1fl/fl;Pax8-rtTA;Tet-O-Cre) with a significantly lower KW/BW ratio and cyst index as compared to PBS and free drug-treated controls, while other combinations did not show a significant difference. Hence, we demonstrate that renal targeting through basolateral targeting micelles enhances the therapeutic potential of combination therapy in genetic kidney disease.
Collapse
Affiliation(s)
- Yi Huang
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Ali Osouli
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Jessica Pham
- Department of Medicine, Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- USC/UKRO Kidney Research Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Valeria Mancino
- Department of Medicine, Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- USC/UKRO Kidney Research Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Colette O'Grady
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Taranatee Khan
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Baishali Chaudhuri
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Nuria M Pastor-Soler
- Department of Medicine, Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- USC/UKRO Kidney Research Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Kenneth R Hallows
- Department of Medicine, Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- USC/UKRO Kidney Research Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Eun Ji Chung
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
- Department of Medicine, Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, California 90089, United States
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California 90033, United States
- Bridge Institute, University of Southern California, Los Angeles, California 90089, United States
| |
Collapse
|
2
|
Huang B, Zeng Z, Kim S, Fausto CC, Koppitch K, Li H, Li Z, Chen X, Guo J, Zhang CC, Ma T, Medina P, Schreiber ME, Xia MW, Vonk AC, Xiang T, Patel T, Li Y, Parvez RK, Der B, Chen JH, Liu Z, Thornton ME, Grubbs BH, Diao Y, Dou Y, Gnedeva K, Ying Q, Pastor-Soler NM, Fei T, Hallows KR, Lindström NO, McMahon AP, Li Z. Long-term expandable mouse and human-induced nephron progenitor cells enable kidney organoid maturation and modeling of plasticity and disease. Cell Stem Cell 2024:S1934-5909(24)00129-2. [PMID: 38692273 DOI: 10.1016/j.stem.2024.04.002] [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: 05/11/2023] [Revised: 02/07/2024] [Accepted: 04/01/2024] [Indexed: 05/03/2024]
Abstract
Nephron progenitor cells (NPCs) self-renew and differentiate into nephrons, the functional units of the kidney. Here, manipulation of p38 and YAP activity allowed for long-term clonal expansion of primary mouse and human NPCs and induced NPCs (iNPCs) from human pluripotent stem cells (hPSCs). Molecular analyses demonstrated that cultured iNPCs closely resemble primary human NPCs. iNPCs generated nephron organoids with minimal off-target cell types and enhanced maturation of podocytes relative to published human kidney organoid protocols. Surprisingly, the NPC culture medium uncovered plasticity in human podocyte programs, enabling podocyte reprogramming to an NPC-like state. Scalability and ease of genome editing facilitated genome-wide CRISPR screening in NPC culture, uncovering genes associated with kidney development and disease. Further, NPC-directed modeling of autosomal-dominant polycystic kidney disease (ADPKD) identified a small-molecule inhibitor of cystogenesis. These findings highlight a broad application for the reported iNPC platform in the study of kidney development, disease, plasticity, and regeneration.
Collapse
Affiliation(s)
- Biao Huang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zipeng Zeng
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Sunghyun Kim
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Connor C Fausto
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kari Koppitch
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Hui Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zexu Li
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P.R. China
| | - Xi Chen
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jinjin Guo
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chennan C Zhang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tianyi Ma
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Pedro Medina
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Megan E Schreiber
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Mateo W Xia
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ariel C Vonk
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tianyuan Xiang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tadrushi Patel
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yidan Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Riana K Parvez
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Balint Der
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Urology, Faculty of Medicine, Semmelweis University, Budapest 3170, Hungary
| | - Jyun Hao Chen
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhenqing Liu
- Division of Stem Cell Biology Research, Department of Developmental and Stem Cell Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Matthew E Thornton
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Brendan H Grubbs
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yarui Diao
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yali Dou
- Department of Medicine, Department of Biochemistry and Molecular Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ksenia Gnedeva
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Tina and Rick Caruso Department of Otolaryngology - Head and Neck Surgery, University of Southern California, Los Angeles, CA 90033, USA
| | - Qilong Ying
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nuria M Pastor-Soler
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Teng Fei
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P.R. China
| | - Kenneth R Hallows
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nils O Lindström
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Andrew P McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhongwei Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| |
Collapse
|
3
|
Kang MJ, Ioannou S, Lougheide Q, Dittmar M, Hsu Y, Pastor-Soler NM. The study of intercalated cells using ex vivo techniques: primary cell culture, cell lines, kidney slices, and organoids. Am J Physiol Cell Physiol 2024; 326:C229-C251. [PMID: 37899748 DOI: 10.1152/ajpcell.00479.2022] [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: 10/27/2022] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 10/31/2023]
Abstract
This review summarizes methods to study kidney intercalated cell (IC) function ex vivo. While important for acid-base homeostasis, IC dysfunction is often not recognized clinically until it becomes severe. The advantage of using ex vivo techniques is that they allow for the differential evaluation of IC function in controlled environments. Although in vitro kidney tubular perfusion is a classical ex vivo technique to study IC, here we concentrate on primary cell cultures, immortalized cell lines, and ex vivo kidney slices. Ex vivo techniques are useful in evaluating IC signaling pathways that allow rapid responses to extracellular changes in pH, CO2, and bicarbonate (HCO3-). However, these methods for IC work can also be challenging, as cell lines that recapitulate IC do not proliferate easily in culture. Moreover, a "pure" IC population in culture does not necessarily replicate its collecting duct (CD) environment, where ICs are surrounded by the more abundant principal cells (PCs). It is reassuring that many findings obtained in ex vivo IC systems signaling have been largely confirmed in vivo. Some of these newly identified signaling pathways reveal that ICs are important for regulating NaCl reabsorption, thus suggesting new frontiers to target antihypertensive treatments. Moreover, recent single-cell characterization studies of kidney epithelial cells revealed a dual developmental origin of IC, as well as the presence of novel CD cell types with certain IC characteristics. These exciting findings present new opportunities for the study of IC ex vivo and will likely rediscover the importance of available tools in this field.NEW & NOTEWORTHY The study of kidney intercalated cells has been limited by current cell culture and kidney tissue isolation techniques. This review is to be used as a reference to select ex vivo techniques to study intercalated cells. We focused on the use of cell lines and kidney slices as potential useful models to study membrane transport proteins. We also review how novel collecting duct organoids may help better elucidate the role of these intriguing cells.
Collapse
Affiliation(s)
- Min Ju Kang
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| | - Silvia Ioannou
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| | - Quinn Lougheide
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| | - Michael Dittmar
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| | - Young Hsu
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| | - Nuria M Pastor-Soler
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine of USC, Los Angeles, California, United States
| |
Collapse
|
4
|
Huang B, Zeng Z, Li H, Li Z, Chen X, Guo J, Zhang CC, Schreiber ME, Vonk AC, Xiang T, Patel T, Li Y, Parvez RK, Der B, Chen JH, Liu Z, Thornton ME, Grubbs BH, Diao Y, Dou Y, Gnedeva K, Lindström NO, Ying Q, Pastor-Soler NM, Fei T, Hallows KR, McMahon AP, Li Z. Modeling kidney development, disease, and plasticity with clonal expandable nephron progenitor cells and nephron organoids. bioRxiv 2023:2023.05.25.542343. [PMID: 37293038 PMCID: PMC10245960 DOI: 10.1101/2023.05.25.542343] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nephron progenitor cells (NPCs) self-renew and differentiate into nephrons, the functional units of the kidney. Here we report manipulation of p38 and YAP activity creates a synthetic niche that allows the long-term clonal expansion of primary mouse and human NPCs, and induced NPCs (iNPCs) from human pluripotent stem cells. Cultured iNPCs resemble closely primary human NPCs, generating nephron organoids with abundant distal convoluted tubule cells, which are not observed in published kidney organoids. The synthetic niche reprograms differentiated nephron cells into NPC state, recapitulating the plasticity of developing nephron in vivo. Scalability and ease of genome-editing in the cultured NPCs allow for genome-wide CRISPR screening, identifying novel genes associated with kidney development and disease. A rapid, efficient, and scalable organoid model for polycystic kidney disease was derived directly from genome-edited NPCs, and validated in drug screen. These technological platforms have broad applications to kidney development, disease, plasticity, and regeneration.
Collapse
Affiliation(s)
- Biao Huang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- These authors contributed equally
| | - Zipeng Zeng
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- These authors contributed equally
| | - Hui Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zexu Li
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P. R. China
| | - Xi Chen
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jinjin Guo
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chennan C. Zhang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Megan E. Schreiber
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ariel C. Vonk
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tianyuan Xiang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tadrushi Patel
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yidan Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Riana K. Parvez
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Balint Der
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jyun Hao Chen
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhenqing Liu
- Division of Stem Cell Biology Research, Department of Developmental and Stem Cell Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Matthew E. Thornton
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Brendan H. Grubbs
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yarui Diao
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yali Dou
- Department of Medicine, Department of Biochemistry and Molecular Medicine, University of Southern California, CA 90033, USA
| | - Ksenia Gnedeva
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, University of Southern California, Los Angeles, CA 90033, USA
| | - Nils O. Lindström
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Qilong Ying
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nuria M. Pastor-Soler
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Teng Fei
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P. R. China
| | - Kenneth R. Hallows
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Andrew P. McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhongwei Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Lead contact
| |
Collapse
|
5
|
Jin K, Ma Y, Manrique-Caballero CL, Li H, Emlet DR, Li S, Baty CJ, Wen X, Kim-Campbell N, Frank A, Menchikova EV, Pastor-Soler NM, Hallows KR, Jackson EK, Shiva S, Pinsky MR, Zuckerbraun BS, Kellum JA, Gómez H. Activation of AMP-activated protein kinase during sepsis/inflammation improves survival by preserving cellular metabolic fitness. FASEB J 2020; 34:7036-7057. [PMID: 32246808 DOI: 10.1096/fj.201901900r] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 01/24/2020] [Accepted: 03/18/2020] [Indexed: 01/08/2023]
Abstract
The purpose was to determine the role of AMPK activation in the renal metabolic response to sepsis, the development of sepsis-induced acute kidney injury (AKI) and on survival. In a prospective experimental study, 167 10- to 12-week-old C57BL/6 mice underwent cecal ligation and puncture (CLP) and human proximal tubule epithelial cells (TEC; HK2) were exposed to inflammatory mix (IM), a combination of lipopolysaccharide (LPS) and high mobility group box 1 (HMGB1). Renal/TEC metabolic fitness was assessed by monitoring the expression of drivers of oxidative phosphorylation (OXPHOS), the rates of utilization of OXPHOS/glycolysis in response to metabolic stress, and mitochondrial function by measuring O2 consumption rates (OCR) and the membrane potential (Δψm ). Sepsis/IM resulted in AKI, increased mortality, and in renal AMPK activation 6-24 hours after CLP/IM. Pharmacologic activation of AMPK with 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR) or metformin during sepsis improved the survival, while AMPK inhibition with Compound C increased mortality, impaired mitochondrial respiration, decreased OCR, and disrupted TEC metabolic fitness. AMPK-driven protection was associated with increased Sirt 3 expression and restoration of metabolic fitness. Renal AMPK activation in response to sepsis/IM is an adaptive mechanism that protects TEC, organs, and the host by preserving mitochondrial function and metabolic fitness likely through Sirt3 signaling.
Collapse
Affiliation(s)
- Kui Jin
- Department of Critical Care, Anhui Provincial Hospital, He Fei, China
| | - Yujie Ma
- Department of Critical Care Medicine, Air Force Medical Center, Beijing, China
| | - Carlos L Manrique-Caballero
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hui Li
- Division of Nephrology and Hypertension and USC/UKRO Kidney Research Center, Department of Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - David R Emlet
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shengnan Li
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Catherine J Baty
- Renal Electrolyte Division, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiaoyan Wen
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nahmah Kim-Campbell
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alicia Frank
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Elizabeth V Menchikova
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nuria M Pastor-Soler
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Nephrology and Hypertension and USC/UKRO Kidney Research Center, Department of Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Kenneth R Hallows
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA.,Division of Nephrology and Hypertension and USC/UKRO Kidney Research Center, Department of Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Edwin K Jackson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sruti Shiva
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.,Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael R Pinsky
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Brian S Zuckerbraun
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hernando Gómez
- Center for Critical Care Nephrology, Department of Critical Care Medicine, The CRISMA Center, University of Pittsburgh, Pittsburgh, PA, USA.,Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|
6
|
Li H, Ho PY, Mancino V, Pham J, Sepehr S, Saitta B, Pastor-Soler NM, Hallows KR. Metformin Inhibits Cyst Growth and Alters Cell Metabolism
in Vitro
and Improves Relevant Disease Parameters in a Hypomorphic ADPKD Mouse Model. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.05000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hui Li
- University of Southern California
| | | | | | | | | | | | | | | |
Collapse
|
7
|
Saitta B, Li H, Pham J, Mancino V, Sepehr S, Hallows KR, Pastor-Soler NM. Sex‐differences in AMPK activity and kidney function parameters post uninephrectomy. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.05001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Hui Li
- Keck School of Medicine of USC
| | | | | | | | | | | |
Collapse
|
8
|
Pavlov TS, Levchenko V, Ilatovskaya DV, Li H, Palygin O, Pastor-Soler NM, Hallows KR, Staruschenko A. Lack of Effects of Metformin and AICAR Chronic Infusion on the Development of Hypertension in Dahl Salt-Sensitive Rats. Front Physiol 2017; 8:227. [PMID: 28473772 PMCID: PMC5397526 DOI: 10.3389/fphys.2017.00227] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/31/2017] [Indexed: 12/19/2022] Open
Abstract
In the kidney, reabsorption via the epithelial sodium channel (ENaC) is involved in long-term blood pressure control. Previously we demonstrated that ENaC hyperactivity is associated with development of salt-sensitive (SS) hypertension in Dahl SS rats. AMP-activated kinase (AMPK), playing a role in cellular energy homeostasis, has been shown to decrease ENaC activity. Here, we tested whether metformin and AICAR, two drugs that activate AMPK, affect the development of salt-induced hypertension. High salt diet significantly increased mean arterial pressure (MAP) in Dahl SS rats. Blood pressure elevation was accompanied by a short-term decline of heart rate and increased circadian arterial pressure dipping. Metformin and AICAR were delivered intravenously at doses of 200 and 20 mg/kg/day, respectively. However, both control and drug-treated groups had similar development of high blood pressure within 3 weeks of 8% NaCl dietary salt intake. In the metformin-treated animals MAP reached 164.9 ± 9.1 mmHg, which was not significantly different from the control group (171.8 ± 5.6 mmHg). Patch clamp analysis revealed that the metformin-treated rats had no difference in the activity of ENaC. AICAR treatment also did not affect the development of hypertension and kidney injury. MAP reached 182.8 ± 4.8 and 178.0 ± 2.8 mmHg in AICAR and vehicle treated groups, respectively. Of note, we found that high-salt diet activated AMPK in the Dahl SS rats, and treatment with these AMPK activators had no significant further effect on AMPK activity. We conclude that AMPK activators, at least under these conditions, do not affect development of hypertension during high-salt diet in the Dahl SS rat model.
Collapse
Affiliation(s)
- Tengis S Pavlov
- Department of Physiology, Medical College of WisconsinMilwaukee, WI, USA.,Division of Hypertension and Vascular Research, Henry Ford HospitalDetroit, MI, USA
| | | | | | - Hui Li
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los AngelesLos Angeles, CA, USA
| | - Oleg Palygin
- Department of Physiology, Medical College of WisconsinMilwaukee, WI, USA
| | - Nuria M Pastor-Soler
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los AngelesLos Angeles, CA, USA
| | - Kenneth R Hallows
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los AngelesLos Angeles, CA, USA
| | | |
Collapse
|
9
|
Roy A, Khadem S, Donnelly BF, Gong F, Pastor-Soler NM, Chang YC, Subramanya AR. Alternatively spliced PY cassette exons in WNK1 enhance sensitivity to aldosterone via the E3 ubiquitin ligase Nedd4‐2. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.1152.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ankita Roy
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Shaheen Khadem
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Bridget F. Donnelly
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Fan Gong
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Nuria M. Pastor-Soler
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
| | - Y.P. Christy Chang
- Department of MedicineUniversity of Maryland School of MedicineBaltimoreMD
| | - Arohan R. Subramanya
- Department of MedicineRenal-Electrolyte DivisionUniversity of Pittsburgh School of MedicinePittsburghPA
- VA Pittsburgh Healthcare SystemPittsburghPA
| |
Collapse
|
10
|
Rondanino C, Poland PA, Kinlough CL, Li H, Rbaibi Y, Myerburg MM, Al-bataineh MM, Kashlan OB, Pastor-Soler NM, Hallows KR, Weisz OA, Apodaca G, Hughey RP. Galectin-7 modulates the length of the primary cilia and wound repair in polarized kidney epithelial cells. Am J Physiol Renal Physiol 2011; 301:F622-33. [PMID: 21677144 DOI: 10.1152/ajprenal.00134.2011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Galectins (Gal) are β-galactoside-binding proteins that function in epithelial development and homeostasis. An overlapping role for Gal-3 and Gal-7 in wound repair was reported in stratified epithelia. Although Gal-7 was thought absent in simple epithelia, it was reported in a proteomic analysis of cilia isolated from cultured human airway, and we recently identified Gal-7 transcripts in Madin-Darby canine kidney (MDCK) cells (Poland PA, Rondanino C, Kinlough CL, Heimburg-Molinaro J, Arthur CM, Stowell SR, Smith DF, Hughey RP. J Biol Chem 286: 6780-6790, 2011). We now report that Gal-7 is localized exclusively on the primary cilium of MDCK, LLC-PK(1) (pig kidney), and mpkCCD(c14) (mouse kidney) cells as well as on cilia in the rat renal proximal tubule. Gal-7 is also present on most cilia of multiciliated cells in human airway epithelia primary cultures. Interestingly, exogenous glutathione S-transferase (GST)-Gal-7 bound the MDCK apical plasma membrane as well as the cilium, while the lectin Ulex europeaus agglutinin, with glycan preferences similar to Gal-7, bound the basolateral plasma membrane as well as the cilium. In pull-down assays, β1-integrin isolated from either the basolateral or apical/cilia membranes of MDCK cells was similarly bound by GST-Gal-7. Selective localization of Gal-7 to cilia despite the presence of binding sites on all cell surfaces suggests that intracellular Gal-7 is specifically delivered to cilia rather than simply binding to surface glycoconjugates after generalized secretion. Moreover, depletion of Gal-7 using tetracycline-induced short-hairpin RNA in mpkCCD(c14) cells significantly reduced cilia length and slowed wound healing in a scratch assay. We conclude that Gal-7 is selectively targeted to cilia and plays a key role in surface stabilization of glycoconjugates responsible for integrating cilia function with epithelial repair.
Collapse
Affiliation(s)
- Christine Rondanino
- Renal-Electrolyte Div., Dept. of Medicine, Univ. of Pittsburgh School of Medicine, PA 15261, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Abstract
Metachromatic leukodystrophy (MLD) is an autosomal recessive disorder resulting from the inability to metabolize sulphatide, an important component of myelin. Although there is significant clinical variability between patients, most have the late-infantile form. It is one of the most common lysosomal disorders involving mental deterioration and is found throughout the world. The great majority of the cases have a deficiency of arylsulphatase A activity. Accurate diagnosis of MLD is complicated by the presence of so-called pseudodeficiency alleles and the need to receive specimens for biochemical testing within 24-48 h of collection. We report the identification of the mutation (a g-to-a transition in the first nucleotide of intron 4) in the arylsulphatase A gene causing late-infantile MLD among the Eskimo population of southern Alaska. As all patients and family members from living and deceased patients had the same mutation, a mutation-based test was developed to identify patients and carriers that can be done on dried blood spots sent via regular mail service. A possible genetic link between this population and the Navajo Indians of the southwestern United States is proposed.
Collapse
Affiliation(s)
- N M Pastor-Soler
- Department of Medicine (Medical Genetics), Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | | | | | | | | |
Collapse
|
12
|
Pastor-Soler NM, Rafi MA, Hoffman JD, Hu D, Wenger DA. Metachromatic leukodystrophy in the Navajo Indian population: a splice site mutation in intron 4 of the arylsulfatase A gene. Hum Mutat 1994; 4:199-207. [PMID: 7833949 DOI: 10.1002/humu.1380040305] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [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: 01/27/2023]
Abstract
Metachromatic leukodystrophy (MLD) is an autosomal recessive disorder of myelin metabolism, resulting from the inability to properly degrade 3-sulfogalactosylceramide (sulfatide). This metabolic block is often due to defective functioning of the lysosomal enzyme arylsulfatase A (ARSA). Unmetabolized sulfatide accumulates in the white matter of the CNS and in the peripheral nerves, leading to progressive demyelination and death. Late infantile, juvenile and adult clinical variants of MLD have been described. A Navajo Indian child was diagnosed with late infantile MLD (LIMLD), and his ARSA gene was amplified in three overlapping regions by the PCR and sequenced. A single mutation was found: a G-->A transition in the first nucleotide of intron 4 (IVS4nt1), which abolishes the 5' splice site consensus sequence. Negligible amounts of ARSA mRNA were observed in Northern blots. However, PCR amplification and sequencing of the ARSA cDNA showed that all of the mRNA species from the patient have exon 4 deleted. A new reading frame is thus established which results in a premature stop codon within exon 5. A minority of transcripts had additional splicing errors. Both parents carry this mutation, and the father also carries the pseudodeficiency (PD) allele. Three additional unrelated Navajo LIMLD patients were found to be homozygous for the same MLD-causing mutation by allele-specific oligonucleotide (ASO) hybridization. This method could be used for carrier and patient identification in this population.
Collapse
Affiliation(s)
- N M Pastor-Soler
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | | | | | | | | |
Collapse
|