Abstract
The Merkel disc is a main type of tactile end organs for sensing gentle touch and is essential for sophisticated sensory tasks including social interaction, environmental exploration, and tactile discrimination. Recent studies have shown that Merkel cells are primary sites of mechanotransduction using Piezo2 channels as a molecular transducer in Merkel discs. Furthermore, tactile stimuli trigger serotonin release from Merkel cells to excite their associated whisker Aβ-afferent endings and transmit tactile signals. The tactile transduction and transmission at Merkel discs may have important clinical implications in sensory dysfunctions such as the loss of tactile sensitivity and tactile allodynia seen in patients who have diabetes and inflammatory diseases and undergo chemotherapy.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Abd-Elsayed AA, Ikeda R, Jia Z, Ling J, Zuo X et al (2015) KCNQ channels in nociceptive cold-sensing trigeminal ganglion neurons as therapeutic targets for treating orofacial cold hyperalgesia. Mol Pain 11:45
Abraira VE, Ginty DD (2013) The sensory neurons of touch. Neuron 79:618–639
Albers J, Chaudhry V, Cavaletti G, Donehower R (2007) Interventions for preventing neuropathy caused by cisplatin and related compounds. Cochrane Database Syst Rev 24:CD005228
Banach M, Juranek JK, Zygulska AL (2017) Chemotherapy-induced neuropathies-a growing problem for patients and health care providers. Brain Behav 7:e00558
Barton DL, Wos EJ, Qin R, Mattar BI, Green NB et al (2011) A double-blind, placebo-controlled trial of a topical treatment for chemotherapy-induced peripheral neuropathy: NCCTG trial N06CA. Support Care Cancer 19:833–841
Basbaum AI, Bautista DM, Scherrer G, Julius D (2009) Cellular and molecular mechanisms of pain. Cell 139:267–284
Baumann KI, Chan E, Halata Z, Senok SS, Yung WH (1996) An isolated rat vibrissal preparation with stable responses of slowly adapting mechanoreceptors. Neurosci Lett 213:1–4
Bensmaia SJ, Craig JC, Yoshioka T, Johnson KO (2006) SA1 and RA afferent responses to static and vibrating gratings. J Neurophysiol 95:1771–1782
Blake DT, Johnson KO, Hsiao SS (1997) Monkey cutaneous SAI and RA responses to raised and depressed scanned patterns: effects of width, height, orientation, and a raised surround. J Neurophysiol 78:2503–2517
Bosman LW, Houweling AR, Owens CB, Tanke N, Shevchouk OT et al (2011) Anatomical pathways involved in generating and sensing rhythmic whisker movements. Front Integr Neurosci 5:53
Bymaster FP, Beedle EE, Findlay J, Gallagher PT, Krushinski JH et al (2003) Duloxetine (Cymbalta), a dual inhibitor of serotonin and norepinephrine reuptake. Bioorg Med Chem Lett 13:4477–4480
Cahusac PM, Senok SS (2006) Metabotropic glutamate receptor antagonists selectively enhance responses of slowly adapting type I mechanoreceptors. Synapse 59:235–242
Carvell GE, Simons DJ (1990) Biometric analyses of vibrissal tactile discrimination in the rat. J Neurosci 10:2638–2648
Cavaletti G, Marmiroli P (2010) Chemotherapy-induced peripheral neurotoxicity. Nat Rev Neurol 6:657–666
Chalfie M, Au M (1989) Genetic control of differentiation of the Caenorhabditis elegans touch receptor neurons. Science 243:1027–1033
Chang W, Kanda H, Ikeda R, Ling J, DeBerry JJ, Gu JG (2016) Merkel disc is a serotonergic synapse in the epidermis for transmitting tactile signals in mammals. Proc Natl Acad Sci U S A 113:E5491–E5500
Coste B, Mathur J, Schmidt M, Earley TJ, Ranade S et al (2010) Piezo1 and Piezo2 are essential components of distinct mechanically activated cation channels. Science 330:55–60
Diamond J, Holmes M, Nurse CA (1986) Are Merkel cell-neurite reciprocal synapses involved in the initiation of tactile responses in salamander skin? J Physiol 376:101–120
Diamond ME, von Heimendahl M, Knutsen PM, Kleinfeld D, Ahissar E (2008) ‘Where’ and ‘what’ in the whisker sensorimotor system. Nat Rev Neurosci 9:601–612
Drew LJ, Rohrer DK, Price MP, Blaver KE, Cockayne DA et al (2004) Acid-sensing ion channels ASIC2 and ASIC3 do not contribute to mechanically activated currents in mammalian sensory neurones. J Physiol 556:691–710
Driscoll M, Chalfie M (1991) The mec-4 gene is a member of a family of Caenorhabditis elegans genes that can mutate to induce neuronal degeneration. Nature 349:588–593
Ebara S, Kumamoto K, Matsuura T, Mazurkiewicz JE, Rice FL (2002) Similarities and differences in the innervation of mystacial vibrissal follicle-sinus complexes in the rat and cat: a confocal microscopic study. J Comp Neurol 449:103–119
Eijkelkamp N, Linley JE, Torres JM, Bee L, Dickenson AH et al (2013) A role for Piezo2 in EPAC1-dependent mechanical allodynia. Nat Commun 4:1682
Fagan BM, Cahusac PM (2001) Evidence for glutamate receptor mediated transmission at mechanoreceptors in the skin. Neuroreport 12:341–347
Findlater GS, Cooksey EJ, Anand A, Paintal AS, Iggo A (1987) The effects of hypoxia on slowly adapting type I (SAI) cutaneous mechanoreceptors in the cat and rat. Somatosens Res 5:1–17
Fricke B, Lints R, Stewart G, Drummond H, Dodt G et al (2000) Epithelial Na+ channels and stomatin are expressed in rat trigeminal mechanosensory neurons. Cell Tissue Res 299:327–334
Fukuda J, Ishimine H, Masaki Y (2003) Long-term staining of live Merkel cells with FM dyes. Cell Tissue Res 311:325–332
Gewandter JS, Mohile SG, Heckler CE, Ryan JL, Kirshner JJ et al (2014) A phase III randomized, placebo-controlled study of topical amitriptyline and ketamine for chemotherapy-induced peripheral neuropathy (CIPN): a University of Rochester CCOP study of 462 cancer survivors. Support Care Cancer 22:1807–1814
Gottschaldt KM, Vahle-Hinz C (1981) Merkel cell receptors: structure and transducer function. Science 214:183–186
Haeberle H, Fujiwara M, Chuang J, Medina MM, Panditrao MV et al (2004) Molecular profiling reveals synaptic release machinery in Merkel cells. Proc Natl Acad Sci U S A 101:14503–14508
Haeberle H, Lumpkin EA (2008) Merkel cells in somatosensation. Chemosens Percept 1:110–118
Halata Z, Grim M, Bauman KI (2003) Friedrich Sigmund Merkel and his “Merkel cell”, morphology, development, and physiology: review and new results. Anat Rec A Discov Mol Cell Evol Biol 271:225–239
Hama A, Takamatsu H (2016) Chemotherapy-induced peripheral neuropathic pain and rodent models. CNS Neurol Disord Drug Targets 15:7–19
He L, Tuckett RP, English KB (2003) 5-HT2 and 3 receptor antagonists suppress the response of rat type I slowly adapting mechanoreceptor: an in vitro study. Brain Res 969:230–236
Hires SA, Efros AL, Svoboda K (2013) Whisker dynamics underlying tactile exploration. J Neurosci 33:9576–9591
Hoke A, Ray M (2014) Rodent models of chemotherapy-induced peripheral neuropathy. ILAR J 54:273–281
Hopkins HL, Duggett NA, Flatters SJ (2016) Chemotherapy-induced painful neuropathy: pain-like behaviours in rodent models and their response to commonly used analgesics. Curr Opin Support Palliat Care 10:119–128
Huang M, Chalfie M (1994) Gene interactions affecting mechanosensory transduction in Caenorhabditis elegans. Nature 367:467–470
Iggo A, Muir AR (1969) The structure and function of a slowly adapting touch corpuscle in hairy skin. J Physiol 200:763–796
Ikeda I, Yamashita Y, Ono T, Ogawa H (1994) Selective phototoxic destruction of rat Merkel cells abolishes responses of slowly adapting type I mechanoreceptor units. J Physiol 479(Pt 2):247–256
Ikeda R, Cha M, Ling J, Jia Z, Coyle D, Gu JG (2014) Merkel cells transduce and encode tactile stimuli to drive Abeta-afferent impulses. Cell 157:664–675
Ikeda R, Ling J, Cha M, Gu JG (2015) In situ patch-clamp recordings from Merkel cells in rat whisker hair follicles, an experimental protocol for studying tactile transduction in tactile-end organs. Mol Pain 11:23
Johansson RS, Flanagan JR (2009) Coding and use of tactile signals from the fingertips in object manipulation tasks. Nat Rev Neurosci 10:345–359
Johnson KO (2001) The roles and functions of cutaneous mechanoreceptors. Curr Opin Neurobiol 11:455–461
Kautio AL, Haanpaa M, Kautiainen H, Kalso E, Saarto T (2011) Burden of chemotherapy-induced neuropathy – a cross-sectional study. Support Care Cancer 19:1991–1996
Kernan M, Cowan D, Zuker C (1994) Genetic dissection of mechanosensory transduction: mechanoreception-defective mutations of Drosophila. Neuron 12:1195–1206
Khalsa PS, Friedman RM, Srinivasan MA, Lamotte RH (1998) Encoding of shape and orientation of objects indented into the monkey fingerpad by populations of slowly and rapidly adapting mechanoreceptors. J Neurophysiol 79:3238–3251
Loprinzi CL, Reeves BN, Dakhil SR, Sloan JA, Wolf SL et al (2011) Natural history of paclitaxel-associated acute pain syndrome: prospective cohort study NCCTG N08C1. J Clin Oncol 29:1472–1478
Lou S, Duan B, Vong L, Lowell BB, Ma Q (2013) Runx1 controls terminal morphology and mechanosensitivity of VGLUT3-expressing C-mechanoreceptors. J Neurosci 33:870–882
Majithia N, Loprinzi CL, Smith TJ (2016) New practical approaches to chemotherapy-induced neuropathic pain: prevention, assessment, and treatment. Oncology (Williston Park) 30:1020–1029
Maksimovic S, Baba Y, Lumpkin EA (2013) Neurotransmitters and synaptic components in the Merkel cell-neurite complex, a gentle-touch receptor. Ann N Y Acad Sci 1279:13–21
Maksimovic S, Nakatani M, Baba Y, Nelson AM, Marshall KL et al (2014) Epidermal Merkel cells are mechanosensory cells that tune mammalian touch receptors. Nature 509:617–621
Maricich SM, Wellnitz SA, Nelson AM, Lesniak DR, Gerling GJ et al (2009) Merkel cells are essential for light-touch responses. Science 324:1580–1582
Merkel F (1875) Tastzellen and Tastkoerperchen bei den Hausthieren und beim Menschen. Arch Mikroscop Anat 11:636–652
Mills LR, Diamond J (1995) Merkel cells are not the mechanosensory transducers in the touch dome of the rat. J Neurocytol 24:117–134
Munger BL (1965) The intraepidermal innervation of the snout skin of the opossum. A light and electron microscope study, with observations on the nature of Merkel’s Tastzellen. J Cell Biol 26:79–97
Press D, Mutlu S, Guclu B (2010) Evidence of fast serotonin transmission in frog slowly adapting type 1 responses. Somatosens Mot Res 27:174–185
Price MP, Lewin GR, McIlwrath SL, Cheng C, Xie J et al (2000) The mammalian sodium channel BNC1 is required for normal touch sensation. Nature 407:1007–1011
Prigg T, Goldreich D, Carvell GE, Simons DJ (2002) Texture discrimination and unit recordings in the rat whisker/barrel system. Physiol Behav 77:671–675
Rao RD, Flynn PJ, Sloan JA, Wong GY, Novotny P et al (2008) Efficacy of lamotrigine in the management of chemotherapy-induced peripheral neuropathy: a phase 3 randomized, double-blind, placebo-controlled trial, N01C3. Cancer 112:2802–2808
Rao RD, Michalak JC, Sloan JA, Loprinzi CL, Soori GS et al (2007) Efficacy of gabapentin in the management of chemotherapy-induced peripheral neuropathy: a phase 3 randomized, double-blind, placebo-controlled, crossover trial (N00C3). Cancer 110:2110–2118
Sang CN, Gracely RH, Max MB, Bennett GJ (1996) Capsaicin-evoked mechanical allodynia and hyperalgesia cross nerve territories. Evidence for a central mechanism. Anesthesiology 85:491–496
Senok SS, Baumann KI, Halata Z (1996) Selective phototoxic destruction of quinacrine-loaded Merkel cells is neither selective nor complete. Exp Brain Res 110:325–334
Smith EM, Cohen JA, Pett MA, Beck SL (2010) The reliability and validity of a modified total neuropathy score-reduced and neuropathic pain severity items when used to measure chemotherapy-induced peripheral neuropathy in patients receiving taxanes and platinums. Cancer Nurs 33:173–183
Smith EM, Pang H, Cirrincione C, Fleishman S, Paskett ED et al (2013) Effect of duloxetine on pain, function, and quality of life among patients with chemotherapy-induced painful peripheral neuropathy: a randomized clinical trial. JAMA 309:1359–1367
Smith KR Jr (1970) The ultrastructure of the human Haarscheibe and Merkel cell. J Invest Dermatol 54:150–159
Tachibana T, Endoh M, Fujiwara N, Nawa T (2005) Receptors and transporter for serotonin in Merkel cell-nerve endings in the rat sinus hair follicle. An immunohistochemical study. Arch Histol Cytol 68:19–28
Tachibana T, Nawa T (2002) Recent progress in studies on Merkel cell biology. Anat Sci Int 77:26–33
Tapper DN (1965) Stimulus-response relationships in the cutaneous slowly-adapting mechanoreceptor in hairy skin of the cat. Exp Neurol 13:364–385
Tofthagen C, McAllister RD, Visovsky C (2013) Peripheral neuropathy caused by Paclitaxel and docetaxel: an evaluation and comparison of symptoms. J Adv Pract Oncol 4:204–215
Torebjork HE, Lundberg LE, LaMotte RH (1992) Central changes in processing of mechanoreceptive input in capsaicin-induced secondary hyperalgesia in humans. J Physiol 448:765–780
Woo SH, Lumpkin EA, Patapoutian A (2015) Merkel cells and neurons keep in touch. Trends Cell Biol 25:74–81
Woo SH, Ranade S, Weyer AD, Dubin AE, Baba Y et al (2014) Piezo2 is required for Merkel-cell mechanotransduction. Nature 509:622–626
Yamashita Y, Akaike N, Wakamori M, Ikeda I, Ogawa H (1992) Voltage-dependent currents in isolated single Merkel cells of rats. J Physiol 450:143–162
Yan Z, Zhang W, He Y, Gorczyca D, Xiang Y et al (2013) Drosophila NOMPC is a mechanotransduction channel subunit for gentle-touch sensation. Nature 493:221–225
Yoshimura M, Jessell T (1990) Amino acid-mediated EPSPs at primary afferent synapses with substantia gelatinosa neurones in the rat spinal cord. J Physiol 430:315–335
Zimmerman A, Bai L, Ginty DD (2014) The gentle touch receptors of mammalian skin. Science 346:950–954
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this chapter
Cite this chapter
Gu, J.G. (2018). Molecular Mechanisms of the Sense of Touch: An Overview of Mechanical Transduction and Transmission in Merkel Discs of Whisker Hair Follicles and Some Clinical Perspectives. In: Shyu, BC., Tominaga, M. (eds) Advances in Pain Research: Mechanisms and Modulation of Chronic Pain. Advances in Experimental Medicine and Biology, vol 1099. Springer, Singapore. https://doi.org/10.1007/978-981-13-1756-9_1
Download citation
DOI: https://doi.org/10.1007/978-981-13-1756-9_1
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-1755-2
Online ISBN: 978-981-13-1756-9
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)