Abstract
Alzheimer’s disease is a progressive and age-related neurodegenerative disorder that is manifested by neuropathological changes and clinical symptoms. Recently, cell-based therapeutic interventions have been considered as the promising and effective strategies in this field. Herein, we investigated therapeutic effects of neural stem cell secretome on Alzheimer’s disease-like model by triggering of Wnt/β-catenin signaling pathway. In this study, mice were randomly allocated into three different groups as follows: Control, AD + Vehicle, and AD + NSCs-CM groups. To induce mouse model of AD, Aβ1-42 was injected into intracerebroventricular region. Following AD-like confirmation through thioflavin S staining and Passive avoidance test, about 5 µl mouse NSCs-CM was injected into the target areas 21 days after AD induction. For evaluation of endogenous proliferation rate (BrdU/Nestin+ cells), 50 µg/kbW BrdU was intraperitoneally injected for 5 consecutive days. To track NSC differentiation, percent of BrdU/NeuN+ cells were monitored via immunofluorescence staining. Histological Nissl staining was done to neurotoxicity and cell death in AD mice after NSCs-CM injection. Morris Water maze test was performed to assess learning and memory performance. Data showed that NSCs-CM could reverse the learning and memory deficits associated with Aβ pathology. The reduced expression of Wnt/β-catenin-related genes such as PI3K, Akt, MAPK, and ERK in AD mice was increased. Along with these changes, NSCs-CM suppressed overactivity of GSK3β activity induced by Aβ deposition. Besides, NSCs increased BrdU/Nestin+ and BrdU/NeuN+ cells in a paracrine manner, indicating proliferation and neural differentiation of NSCs. Moreover, neurotoxicity rate and cell loss were deceased after NSCs-CM injection. In summary, NSCs can regulate adult neurogenesis through modulating of Wnt/β-catenin signaling pathway and enhance the behavioral performance in the AD mice. These data present the alternative and effective approach in the management of AD and other cognitive impairments.
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Data Availability
The datasets presented/analyzed during the current study are available.
Abbreviations
- DAPI:
-
4,6-diamidino-2-phenylindole
- BrdU:
-
5-Bromo-20-deoxyuridine
- AD:
-
Alzheimer’s disease
- Aβ:
-
Amyloid β
- FGF-2:
-
Basic fibroblast growth factor-2
- BDNF:
-
Brain-derived neurotrophic factor
- ICV:
-
Cerebroventricular
- DMEM/F-12:
-
Dulbecco’s modified eagle medium/nutrient mixture
- ELISA:
-
Enzyme-linked immunosorbent assay
- EGF:
-
Epidermal growth factor
- GSK-3β:
-
Glycogen synthase kinase-3β
- IF:
-
Immunofluorescence
- MWM:
-
Morris water maze
- NGF:
-
Nerve growth factor
- NSCs-CM:
-
Neural stem cell condition medium
References
Abrous, D. N., & Wojtowicz, J. M. (2015). Interaction between neurogenesis and hippocampal memory system: New vistas. Cold Spring Harbor Perspectives in Biology, 7(6), a018952.
Adachi, K., Mirzadeh, Z., Sakaguchi, M., Yamashita, T., Nikolcheva, T., Gotoh, Y., et al. (2007). β-catenin signaling promotes proliferation of progenitor cells in the adult mouse subventricular zone. Stem Cells, 25(11), 2827–2836. https://doi.org/10.1634/stemcells.2007-0177
Alonso, A. D. C., Grundke-Iqbal, I., Barra, H. S., & Iqbal, K. (1997). Abnormal phosphorylation of tau and the mechanism of Alzheimer neurofibrillary degeneration: Sequestration of microtubule-associated proteins 1 and 2 and the disassembly of microtubules by the abnormal tau. Proceedings of the National Academy of Sciences, 94(1), 298–303.
Alzheimer’s Association. (2016). 2016 Alzheimer’s disease facts and figures. Alzheimer’s & Dementia, 12(4), 459–509.
Ameri, M., Shabaninejad, Z., Movahedpour, A., Sahebkar, A., Mohammadi, S., Hosseindoost, S., et al. (2020). Biosensors for detection of Tau protein as an Alzheimer’s disease marker. International Journal of Biological Macromolecules, 162, 1100–1108.
Azari, H. (2013). Isolation and enrichment of defined neural cell populations from heterogeneous neural stem cell progeny. Neural progenitor cells (pp. 95–106). Springer.
Azari, H., Sharififar, S., Rahman, M., Ansari, S., & Reynolds, B. A. (2011). Establishing embryonic mouse neural stem cell culture using the neurosphere assay. Journal of Visualized Experiments. https://doi.org/10.3791/2457
Baptista, P., & Andrade, J. P. (2018). Adult hippocampal neurogenesis: Regulation and possible functional and clinical correlates. Frontiers in Neuroanatomy, 12, 44.
Berdugo-Vega, G., Arias-Gil, G., López-Fernández, A., Artegiani, B., Wasielewska, J. M., Lee, C.-C., et al. (2020). Increasing neurogenesis refines hippocampal activity rejuvenating navigational learning strategies and contextual memory throughout life. Nature Communications, 11(1), 1–12.
Binder, L. I., Guillozet-Bongaarts, A. L., Garcia-Sierra, F., & Berry, R. W. (2005). Tau, tangles, and Alzheimer’s disease. Biochimica et Biophysica Acta (BBA)—Molecular Basis of Disease, 1739(2–3), 216–223.
Bosiacki, M., Gąssowska-Dobrowolska, M., Kojder, K., Fabiańska, M., Jeżewski, D., Gutowska, I., et al. (2019). Perineuronal nets and their role in synaptic homeostasis. International Journal of Molecular Sciences, 20(17), 4108.
Chen, B. Y., Wang, X., Wang, Z. Y., Wang, Y. Z., Chen, L. W., & Luo, Z. J. (2013). Brain-derived neurotrophic factor stimulates proliferation and differentiation of neural stem cells, possibly by triggering the Wnt/β-catenin signaling pathway. Journal of Neuroscience Research, 91(1), 30–41.
Chen, X.-Q., & Mobley, W. C. (2019). Alzheimer disease pathogenesis: Insights from molecular and cellular biology studies of oligomeric Aβ and tau species. Frontiers in Neuroscience, 13, 659.
Cho, J. W., Jung, S. Y., Kim, D. Y., Chung, Y. R., Choi, H. H., Jeon, J. W., et al. (2018). PI3K-Akt-Wnt pathway is implicated in exercise-induced improvement of short-term memory in cerebral palsy rats. International Neurourology Journal, 22(Suppl 3), S156-164. https://doi.org/10.5213/inj.1836224.112
Clevers, H., & Nusse, R. (2012). Wnt/β-catenin signaling and disease. Cell, 149(6), 1192–1205.
Crapser, J. D., Spangenberg, E. E., Barahona, R. A., Arreola, M. A., Hohsfield, L. A., & Green, K. N. (2020). Microglia facilitate loss of perineuronal nets in the Alzheimer’s disease brain. EBioMedicine, 58, 102919.
de la Torre-Ubieta, L., & Bonni, A. (2011). Transcriptional regulation of neuronal polarity and morphogenesis in the mammalian brain. Neuron, 72(1), 22–40.
Deng, Y., Wang, Z., Wang, R., Zhang, X., Zhang, S., Wu, Y., et al. (2013). Amyloid-β protein (Aβ) Glu11 is the major β-secretase site of β-site amyloid-β precursor protein-cleaving enzyme 1 (BACE1), and shifting the cleavage site to Aβ Asp1 contributes to Alzheimer pathogenesis. European Journal of Neuroscience, 37(12), 1962–1969.
Diaz Brinton, R., & Ming Wang, J. (2006). Therapeutic potential of neurogenesis for prevention and recovery from Alzheimer’s disease: Allopregnanolone as a proof of concept neurogenic agent. Current Alzheimer Research, 3(3), 185–190.
Drubin, D. G., & Kirschner, M. W. (1986). Tau protein function in living cells. Journal of Cell Biology, 103(6), 2739–2746.
Ebneth, A., Godemann, R., Stamer, K., Illenberger, S., Trinczek, B., Mandelkow, E.-M., et al. (1998). Overexpression of tau protein inhibits kinesin-dependent trafficking of vesicles, mitochondria, and endoplasmic reticulum: Implications for Alzheimer’s disease. The Journal of Cell Biology, 143(3), 777–794.
Eriksson, P. S., Perfilieva, E., Björk-Eriksson, T., Alborn, A.-M., Nordborg, C., Peterson, D. A., et al. (1998). Neurogenesis in the adult human hippocampus. Nature Medicine, 4(11), 1313–1317.
Esfandiary, E., Abdolali, Z., Omranifard, V., Ghanadian, M., Bagherian-Sararoud, R., Karimipour, M., et al. (2018). Novel effects of Rosa damascena extract on patients with neurocognitive disorder and depression: A clinical trial study. International Journal of Preventive Medicine, 9, 57.
Esfandiary, E., Karimipour, M., Mardani, M., Alaei, H., Ghannadian, M., Kazemi, M., et al. (2014). Novel effects of Rosa damascena extract on memory and neurogenesis in a rat model of Alzheimer’s disease. Journal of Neuroscience Research, 92(4), 517–530.
Esfandiary, E., Karimipour, M., Mardani, M., Ghanadian, M., Alaei, H. A., Mohammadnejad, D., et al. (2015). Neuroprotective effects of Rosa damascena extract on learning and memory in a rat model of amyloid-β-induced Alzheimer’s disease. Advanced Biomedical Research, 4, 131.
Faigle, R., & Song, H. (2013). Signaling mechanisms regulating adult neural stem cells and neurogenesis. Biochimica et Biophysica Acta (BBA), 1830(2), 2435–2448.
Gage, F. H. (2019). Adult neurogenesis in mammals. Science, 364(6443), 827–828.
Gonçalves, J. T., Schafer, S. T., & Gage, F. H. (2016). Adult neurogenesis in the hippocampus: From stem cells to behavior. Cell, 167(4), 897–914.
Gould, E. (2007). How widespread is adult neurogenesis in mammals? Nature Reviews Neuroscience, 8(6), 481–488.
Gouras, G. K., Tsai, J., Naslund, J., Vincent, B., Edgar, M., Checler, F., et al. (2000). Intraneuronal Aβ42 accumulation in human brain. The American Journal of Pathology, 156(1), 15–20.
Grundke-Iqbal, I., Iqbal, K., Tung, Y.-C., Quinlan, M., Wisniewski, H. M., & Binder, L. I. (1986). Abnormal phosphorylation of the microtubule-associated protein tau (tau) in Alzheimer cytoskeletal pathology. Proceedings of the National Academy of Sciences, 83(13), 4913–4917.
Gundersen, H., Bendtsen, T. F., Korbo, L., Marcussen, N., Møller, A., Nielsen, K., et al. (1988). Some new, simple and efficient stereological methods and their use in pathological research and diagnosis. Apmis, 96(1–6), 379–394.
Guo, M., Yin, Z., Chen, F., & Lei, P. (2020). Mesenchymal stem cell-derived exosome: A promising alternative in the therapy of Alzheimer’s disease. Alzheimer’s Research & Therapy, 12(1), 109. https://doi.org/10.1186/s13195-020-00670-x
Harland, M., Torres, S., Liu, J., & Wang, X. (2020). Neuronal mitochondria modulation of LPS-induced neuroinflammation. Journal of Neuroscience, 40(8), 1756–1765.
Harris, K. M., & Weinberg, R. J. (2012). Ultrastructure of synapses in the mammalian brain. Cold Spring Harbor Perspectives in Biology, 4(5), a005587.
Heneka, M. T., Carson, M. J., El Khoury, J., Landreth, G. E., Brosseron, F., Feinstein, D. L., et al. (2015). Neuroinflammation in Alzheimer’s disease. The Lancet Neurology, 14(4), 388–405.
Hernández, F., de Barreda, E. G., Fuster-Matanzo, A., Lucas, J. J., & Avila, J. (2010). GSK3: A possible link between beta amyloid peptide and tau protein. Experimental Neurology, 223(2), 322–325.
Hooper, C., Killick, R., & Lovestone, S. (2008). The GSK3 hypothesis of Alzheimer’s disease. Journal of Neurochemistry, 104(6), 1433–1439.
Hoover, B. R., Reed, M. N., Su, J., Penrod, R. D., Kotilinek, L. A., Grant, M. K., et al. (2010). Tau mislocalization to dendritic spines mediates synaptic dysfunction independently of neurodegeneration. Neuron, 68(6), 1067–1081.
Iqbal, K., Liu, F., & Gong, C.-X. (2016). Tau and neurodegenerative disease: The story so far. Nature Reviews Neurology, 12(1), 15.
Ittner, A., Chua, S. W., Bertz, J., Volkerling, A., van der Hoven, J., Gladbach, A., et al. (2016). Site-specific phosphorylation of tau inhibits amyloid-β toxicity in Alzheimer’s mice. Science, 354(6314), 904–908.
Jahed, F. J., Rahbarghazi, R., Shafaei, H., Rezabakhsh, A., & Karimipour, M. (2021). Application of neurotrophic factor-secreting cells (astrocyte-Like cells) in the in-vitro Alzheimer’s disease-like pathology on the human neuroblastoma cells. Brain Research Bulletin, 172, 180–189.
Karimipour, M., Rahbarghazi, R., Tayefi, H., Shimia, M., Ghanadian, M., Mahmoudi, J., et al. (2019). Quercetin promotes learning and memory performance concomitantly with neural stem/progenitor cell proliferation and neurogenesis in the adult rat dentate gyrus. International Journal of Developmental Neuroscience, 74, 18–26.
Kempermann, G., Kuhn, H. G., & Gage, F. H. (1997). More hippocampal neurons in adult mice living in an enriched environment. Nature, 386(6624), 493–495.
Kim, H. Y., Lee, D. K., Chung, B.-R., Kim, H. V., & Kim, Y. (2016). Intracerebroventricular injection of amyloid-β peptides in normal mice to acutely induce Alzheimer-like cognitive deficits. Journal of Visualized Experiments: JoVE, 109, e53308.
Kwak, Y.-D., Hendrix, B. J., & Sugaya, K. (2014). Secreted type of amyloid precursor protein induces glial differentiation by stimulating the BMP/Smad signaling pathway. Biochemical and Biophysical Research Communications, 447(3), 394–399.
Lassmann, H., Bancher, C., Breitschopf, H., Wegiel, J., Bobinski, M., Jellinger, K., et al. (1995). Cell death in Alzheimer’s disease evaluated by DNA fragmentation in situ. Acta Neuropathologica, 89(1), 35–41.
Lee, H. J., Lee, D. Y., Kim, H. L., & Yang, S. H. (2020). Scrophularia buergeriana extract improves memory impairment via inhibition of the apoptosis pathway in the mouse hippocampus. Applied Sciences, 10(22), 7987.
Leeson, H. C., Kasherman, M. A., Chan-Ling, T., Lovelace, M. D., Brownlie, J. C., Toppinen, K. M., et al. (2018). P2X7 receptors regulate phagocytosis and proliferation in adult hippocampal and SVZ neural progenitor cells: Implications for inflammation in neurogenesis. Stem Cells, 36(11), 1764–1777.
Lempriere, S. (2019). Birth of hippocampal neurons declines in Alzheimer disease. Nature Reviews Neurology, 15(5), 245–245.
Lu, P., Jones, L., Snyder, E., & Tuszynski, M. (2003). Neural stem cells constitutively secrete neurotrophic factors and promote extensive host axonal growth after spinal cord injury. Experimental Neurology, 181(2), 115–129.
Ly, P. T., Cai, F., & Song, W. (2011). Detection of neuritic plaques in Alzheimer’s disease mouse model. JoVE (Journal of Visualized Experiments), 53, e2831.
Magdesian, M. H., Carvalho, M. M., Mendes, F. A., Saraiva, L. M., Juliano, M. A., Juliano, L., et al. (2008). Amyloid-β binds to the extracellular cysteine-rich domain of Frizzled and inhibits Wnt/β-catenin signaling. Journal of Biological Chemistry, 283(14), 9359–9368.
McInnes, J., Wierda, K., Snellinx, A., Bounti, L., Wang, Y.-C., Stancu, I.-C., et al. (2018). Synaptogyrin-3 mediates presynaptic dysfunction induced by tau. Neuron, 97(4), 823-835.e828.
Ming, G.-L., & Song, H. (2011). Adult neurogenesis in the mammalian brain: Significant answers and significant questions. Neuron, 70(4), 687–702.
Moreno-Jiménez, E. P., Flor-García, M., Terreros-Roncal, J., Rábano, A., Cafini, F., Pallas-Bazarra, N., et al. (2019). Adult hippocampal neurogenesis is abundant in neurologically healthy subjects and drops sharply in patients with Alzheimer’s disease. Nature Medicine, 25(4), 554–560.
Nakano, M., Kubota, K., Kobayashi, E., Chikenji, T. S., Saito, Y., Konari, N., et al. (2020). Bone marrow-derived mesenchymal stem cells improve cognitive impairment in an Alzheimer’s disease model by increasing the expression of microRNA-146a in hippocampus. Scientific Reports, 10(1), 1–15.
Nakano, M., Nagaishi, K., Konari, N., Saito, Y., Chikenji, T., Mizue, Y., et al. (2016). Bone marrow-derived mesenchymal stem cells improve diabetes-induced cognitive impairment by exosome transfer into damaged neurons and astrocytes. Scientific Reports, 6(1), 1–14.
Patapoutian, A., & Reichardt, L. F. (2000). Roles of Wnt proteins in neural development and maintenance. Current Opinion in Neurobiology, 10(3), 392–399.
Patterson, C. (2018). The state of the art of dementia research: New frontiers. World Alzheimer Report, 2018.
Pirbhoy, P. S., Rais, M., Lovelace, J. W., Woodard, W., Razak, K. A., Binder, D. K., et al. (2020). Acute pharmacological inhibition of matrix metalloproteinase-9 activity during development restores perineuronal net formation and normalizes auditory processing in Fmr1 KO mice. Journal of neurochemistry, 155(5), 538–558.
Plassman, B. L., Langa, K. M., Fisher, G. G., Heeringa, S. G., Weir, D. R., Ofstedal, M. B., et al. (2007). Prevalence of dementia in the United States: The aging, demographics, and memory study. Neuroepidemiology, 29(1–2), 125–132.
Rajamohamedsait, H. B., & Sigurdsson, E. M. (2012). Histological staining of amyloid and pre-amyloid peptides and proteins in mouse tissue. Amyloid proteins (pp. 411–424). Springer.
Rehman, I. U., Ahmad, R., Khan, I., Lee, H. J., Park, J., Ullah, R., et al. (2021). Nicotinamide ameliorates amyloid beta-induced oxidative stress-mediated neuroinflammation and neurodegeneration in adult mouse brain. Biomedicines, 9(4), 408.
Reichelt, A. C., Hare, D. J., Bussey, T. J., & Saksida, L. M. (2019). Perineuronal nets: Plasticity, protection, and therapeutic potential. Trends in Neurosciences, 42(7), 458–470.
Rhee, Y.-H., Yi, S.-H., Kim, J. Y., Chang, M.-Y., Jo, A.-Y., Kim, J., et al. (2016). Neural stem cells secrete factors facilitating brain regeneration upon constitutive Raf-Erk activation. Scientific Reports, 6(1), 1–16.
Rosso, S. B., & Inestrosa, N. C. (2013). WNT signaling in neuronal maturation and synaptogenesis. Frontiers in Cellular Neuroscience, 7, 103.
Scheltens, P., Blennow, K., Breteler, M., de Strooper, B., Frisoni, G., Salloway, S., et al. (2016). Alzheimer’s disease. Lancet (London, England), 388, 505–517.
Schmid, S., Jungwirth, B., Gehlert, V., Blobner, M., Schneider, G., Kratzer, S., et al. (2017). Intracerebroventricular injection of beta-amyloid in mice is associated with long-term cognitive impairment in the modified hole-board test. Behavioural Brain Research, 324, 15–20.
Schwarz, T. J., Ebert, B., & Lie, D. C. (2012). Stem cell maintenance in the adult mammalian hippocampus: A matter of signal integration? Developmental Neurobiology, 72(7), 1006–1015.
Selkoe, D. J., & Hardy, J. (2016). The amyloid hypothesis of Alzheimer’s disease at 25 years. EMBO Molecular Medicine, 8(6), 595–608.
Serrano-Pozo, A., Frosch, M., Masliah, E., & Hyman, B. (2011). Neuropathological alterations in Alzheimer disease. Cold Spring Harbor Perspectives in Medicine, 1(1), a006189.
Song, J., Zhong, C., Bonaguidi, M. A., Sun, G. J., Hsu, D., Gu, Y., et al. (2012). Neuronal circuitry mechanism regulating adult quiescent neural stem-cell fate decision. Nature, 489(7414), 150–154.
Stuchlik, A. (2014). Dynamic learning and memory, synaptic plasticity and neurogenesis: An update. Frontiers in Behavioral Neuroscience, 8, 106.
Terry, R. D., Masliah, E., Salmon, D. P., Butters, N., DeTeresa, R., Hill, R., et al. (1991). Physical basis of cognitive alterations in Alzheimer’s disease: Synapse loss is the major correlate of cognitive impairment. Annals of Neurology: Official Journal of the American Neurological Association and the Child Neurology Society, 30(4), 572–580.
Thuret, S., Toni, N., Aigner, S., Yeo, G. W., & Gage, F. H. (2009). Hippocampus-dependent learning is associated with adult neurogenesis in MRL/MpJ mice. Hippocampus, 19(7), 658–669.
Vafaei, A., Rahbarghazi, R., Kharaziha, M., Avval, N. A., Rezabakhsh, A., & Karimipour, M. (2021). Polycaprolactone fumarate acts as an artificial neural network to promote the biological behavior of neural stem cells. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 109(2), 246–256.
Walsh, D. M., & Selkoe, D. J. (2004). Deciphering the molecular basis of memory failure in Alzheimer’s disease. Neuron, 44(1), 181–193.
Wan, W., Xia, S., Kalionis, B., Liu, L., & Li, Y. (2014). The role of Wnt signaling in the development of alzheimer’s disease: a potential therapeutic target? BioMed Research International, 2014, 1–9.
Wang, P., Luo, Q., Qiao, H., Ding, H., Cao, Y., Yu, J., et al. (2017). The neuroprotective effects of carvacrol on ethanol-induced hippocampal neurons impairment via the antioxidative and antiapoptotic pathways. Oxidative Medicine and Cellular Longevity. https://doi.org/10.1155/2017/4079425
Wang, Z., Xu, Q., Cai, F., Liu, X., Wu, Y., & Song, W. (2019). BACE2, a conditional β-secretase, contributes to Alzheimer’s disease pathogenesis. JCI Insight. https://doi.org/10.1172/jci.insight.123431
Weingarten, M. D., Lockwood, A. H., Hwo, S.-Y., & Kirschner, M. W. (1975). A protein factor essential for microtubule assembly. Proceedings of the National Academy of Sciences, 72(5), 1858–1862.
Williams, R. W., & Rakic, P. (1988). Elimination of neurons from the rhesus monkey’s lateral geniculate nucleus during development. Journal of Comparative Neurology, 272(3), 424–436.
Wodarz, A., & Nusse, R. (1998). Mechanisms of Wnt signaling in development. Annual Review of Cell and Developmental Biology, 14(1), 59–88.
Xie, M., Zhang, G., Yin, W., Hei, X.-X., & Liu, T. (2018). Cognitive enhancing and antioxidant effects of tetrahydroxystilbene glucoside in Aβ1-42-induced neurodegeneration in mice. Journal of Integrative Neuroscience, 17(3–4), 355–365.
Yeung, J. H., Palpagama, T. H., Tate, W. P., Peppercorn, K., Waldvogel, H. J., Faull, R. L., et al. (2020). The acute effects of amyloid-beta1–42 on glutamatergic receptor and transporter expression in the mouse hippocampus. Frontiers in Neuroscience, 13, 1427.
Zhao, C., Deng, W., & Gage, F. H. (2008). Mechanisms and functional implications of adult neurogenesis. Cell, 132(4), 645–660.
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Authors wish to thank the personnel of Neuroscience Research Center for help and guidance.
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This study was supported by a Grant from Tabriz University of Medical Sciences (63595).
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FH, RR, SSE, GB, MH, and MS performed different analyses. MK supervised the study.
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Hijroudi, F., Rahbarghazi, R., Sadigh-Eteghad, S. et al. Neural Stem Cells Secretome Increased Neurogenesis and Behavioral Performance and the Activation of Wnt/β-Catenin Signaling Pathway in Mouse Model of Alzheimer’s Disease. Neuromol Med 24, 424–436 (2022). https://doi.org/10.1007/s12017-022-08708-z
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DOI: https://doi.org/10.1007/s12017-022-08708-z