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Retinitis pigmentosa 32(RP32)

MedGen UID:
322781
•Concept ID:
C1835927
•
Disease or Syndrome
Synonyms: RP 32; RP32
 
Gene (location): CLCC1 (1p13.3)
 
Monarch Initiative: MONDO:0012363
OMIM®: 609913

Definition

A retinitis pigmentosa that has material basis in variation in the chromosome region 1p21.3-p13.3. [from MONDO]

Clinical features

From HPO
Photophobia
MedGen UID:
43220
•Concept ID:
C0085636
•
Sign or Symptom
Excessive sensitivity to light with the sensation of discomfort or pain in the eyes due to exposure to bright light.
See: Feature record | Search on this feature
Night blindness
MedGen UID:
10349
•Concept ID:
C0028077
•
Disease or Syndrome
Inability to see well at night or in poor light.
See: Feature record | Search on this feature
Retinal degeneration
MedGen UID:
48432
•Concept ID:
C0035304
•
Finding
A nonspecific term denoting degeneration of the retinal pigment epithelium and/or retinal photoreceptor cells.
See: Feature record | Search on this feature
Reduced visual acuity
MedGen UID:
65889
•Concept ID:
C0234632
•
Finding
Diminished clarity of vision.
See: Feature record | Search on this feature
Optic disc pallor
MedGen UID:
108218
•Concept ID:
C0554970
•
Finding
A pale yellow discoloration of the optic disc (the area of the optic nerve head in the retina). The optic disc normally has a pinkish hue with a central yellowish depression.
See: Feature record | Search on this feature
Bone spicule pigmentation of the retina
MedGen UID:
323029
•Concept ID:
C1836926
•
Finding
Pigment migration into the retina in a bone-spicule configuration (resembling the nucleated cells within the lacuna of bone).
See: Feature record | Search on this feature
Undetectable electroretinogram
MedGen UID:
383742
•Concept ID:
C1855685
•
Finding
Lack of any response to stimulation upon electroretinography.
See: Feature record | Search on this feature
Attenuation of retinal blood vessels
MedGen UID:
480605
•Concept ID:
C3278975
•
Finding
See: Feature record | Search on this feature
Photoreceptor layer loss on macular OCT
MedGen UID:
892581
•Concept ID:
C4073079
•
Finding
Loss of the outer nuclear layer (photoreceptor layer) as assessed by ocular coherence tomography.
See: Feature record | Search on this feature
Pigmentary retinopathy
MedGen UID:
1643295
•Concept ID:
C4551715
•
Disease or Syndrome
An abnormality of the retina characterized by pigment deposition. It is typically associated with migration and proliferation of macrophages or retinal pigment epithelial cells into the retina; melanin from these cells causes the pigmentary changes. Pigmentary retinopathy is a common final pathway of many retinal conditions and is often associated with visual loss.
See: Feature record | Search on this feature
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Professional guidelines

PubMed

Genotypes Predispose Phenotypes-Clinical Features and Genetic Spectrum of ABCA4-Associated Retinal Dystrophies.
Sung YC, Yang CH, Yang CM, Lin CW, Huang DS, Huang YS, Hu FR, Chen PL, Chen TC
Genes (Basel) 2020 Nov 27;11(12) doi: 10.3390/genes11121421. PMID: 33261146Free PMC Article

Recent clinical studies

Etiology

IMPG2-Related Maculopathy.
Birtel J, Caswell R, De Silva SR, Herrmann P, Rehman S, Lotery AJ, Mahroo OA, Michaelides M, Webster AR, MacLaren RE, Charbel Issa P
Am J Ophthalmol 2024 Feb;258:32-42. Epub 2023 Oct 6 doi: 10.1016/j.ajo.2023.10.002. PMID: 37806544
Clinical presentation and macular morphology in retinitis pigmentosa patients.
Okonkwo ON, Hassan AO, Agweye CT, Victor U, Akanbi T
Ann Afr Med 2023 Oct-Dec;22(4):451-455. doi: 10.4103/aam.aam_181_22. PMID: 38358145Free PMC Article
Usher Syndrome on the Island of Ireland: A Genotype-Phenotype Review.
Stephenson KAJ, Whelan L, Zhu J, Dockery A, Wynne NC, Cairns RM, Kirk C, Turner J, Duignan ES, O'Byrne JJ, Silvestri G, Kenna PF, Farrar GJ, Keegan DJ
Invest Ophthalmol Vis Sci 2023 Jul 3;64(10):23. doi: 10.1167/iovs.64.10.23. PMID: 37466950Free PMC Article
Efficacy and safety of setmelanotide, a melanocortin-4 receptor agonist, in patients with Bardet-Biedl syndrome and Alström syndrome: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial with an open-label period.
Haqq AM, Chung WK, Dollfus H, Haws RM, Martos-Moreno GÁ, Poitou C, Yanovski JA, Mittleman RS, Yuan G, Forsythe E, Clément K, Argente J
Lancet Diabetes Endocrinol 2022 Dec;10(12):859-868. Epub 2022 Nov 7 doi: 10.1016/S2213-8587(22)00277-7. PMID: 36356613Free PMC Article
Ciliopathy: Usher Syndrome.
Tsang SH, Aycinena ARP, Sharma T
Adv Exp Med Biol 2018;1085:167-170. doi: 10.1007/978-3-319-95046-4_32. PMID: 30578505

Diagnosis

IMPG2-Related Maculopathy.
Birtel J, Caswell R, De Silva SR, Herrmann P, Rehman S, Lotery AJ, Mahroo OA, Michaelides M, Webster AR, MacLaren RE, Charbel Issa P
Am J Ophthalmol 2024 Feb;258:32-42. Epub 2023 Oct 6 doi: 10.1016/j.ajo.2023.10.002. PMID: 37806544
Efficacy and safety of setmelanotide, a melanocortin-4 receptor agonist, in patients with Bardet-Biedl syndrome and Alström syndrome: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial with an open-label period.
Haqq AM, Chung WK, Dollfus H, Haws RM, Martos-Moreno GÁ, Poitou C, Yanovski JA, Mittleman RS, Yuan G, Forsythe E, Clément K, Argente J
Lancet Diabetes Endocrinol 2022 Dec;10(12):859-868. Epub 2022 Nov 7 doi: 10.1016/S2213-8587(22)00277-7. PMID: 36356613Free PMC Article
Inherited retinal disease in Norway - a characterization of current clinical and genetic knowledge.
Holtan JP, Selmer KK, Heimdal KR, Bragadóttir R
Acta Ophthalmol 2020 May;98(3):286-295. Epub 2019 Aug 19 doi: 10.1111/aos.14218. PMID: 31429209
Genotype-phenotype correlation and mutation spectrum in a large cohort of patients with inherited retinal dystrophy revealed by next-generation sequencing.
Huang XF, Huang F, Wu KC, Wu J, Chen J, Pang CP, Lu F, Qu J, Jin ZB
Genet Med 2015 Apr;17(4):271-8. Epub 2014 Nov 6 doi: 10.1038/gim.2014.138. PMID: 25356976
Coats'-type retinitis pigmentosa.
Khan JA, Ide CH, Strickland MP
Surv Ophthalmol 1988 Mar-Apr;32(5):317-32. doi: 10.1016/0039-6257(88)90094-x. PMID: 2457260

Therapy

Rescue of cone and rod photoreceptor function in a CDHR1-model of age-related retinal degeneration.
Yusuf IH, Burgoyne T, Salman A, McClements ME, MacLaren RE, Charbel Issa P
Mol Ther 2024 May 1;32(5):1445-1460. Epub 2024 Mar 19 doi: 10.1016/j.ymthe.2024.03.026. PMID: 38504520Free PMC Article
Efficacy and safety of setmelanotide, a melanocortin-4 receptor agonist, in patients with Bardet-Biedl syndrome and Alström syndrome: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial with an open-label period.
Haqq AM, Chung WK, Dollfus H, Haws RM, Martos-Moreno GÁ, Poitou C, Yanovski JA, Mittleman RS, Yuan G, Forsythe E, Clément K, Argente J
Lancet Diabetes Endocrinol 2022 Dec;10(12):859-868. Epub 2022 Nov 7 doi: 10.1016/S2213-8587(22)00277-7. PMID: 36356613Free PMC Article
Management of cystoid macular edema secondary to retinitis pigmentosa via subliminal micropulse yellow laser.
Arslan U
Lasers Med Sci 2021 Mar;36(2):317-323. Epub 2020 May 4 doi: 10.1007/s10103-020-03031-0. PMID: 32363437
INTRAVITREAL DEXAMETHASONE IMPLANT IN RETINITIS PIGMENTOSA-RELATED CYSTOID MACULAR EDEMA.
Mansour AM, Sheheitli H, Kucukerdonmez C, Sisk RA, Moura R, Moschos MM, Lima LH, Al-Shaar L, Arevalo JF, Maia M, Foster RE, Kayikcioglu O, Kozak I, Kurup S, Zegarra H, Gallego-Pinazo R, Hamam RN, Bejjani RA, Cinar E, Erakgün ET, Kimura A, Teixeira A
Retina 2018 Feb;38(2):416-423. doi: 10.1097/IAE.0000000000001542. PMID: 28221257
Management of Cystoid Macular Edema in Retinitis Pigmentosa.
Huckfeldt RM, Comander J
Semin Ophthalmol 2017;32(1):43-51. Epub 2016 Oct 17 doi: 10.1080/08820538.2016.1228404. PMID: 27748628

Prognosis

HYPERREFLECTIVE BAND IN THE GANGLION CELL LAYER IN RETINITIS PIGMENTOSA.
Antropoli A, Arrigo A, Bianco L, Cavallari E, Berni A, Casoni F, Consalez G, Bandello F, Cremona O, Battaglia Parodi M
Retina 2023 Aug 1;43(8):1348-1355. doi: 10.1097/IAE.0000000000003801. PMID: 36996465
Pituitary morphovolumetric changes in Alström syndrome.
Citton V, Maffei P, Marshall JD, Baglione A, Collin GB, Milan G, Vettor R, Naggert JK, Manara R
J Neuroradiol 2016 Jun;43(3):195-9. Epub 2015 Dec 17 doi: 10.1016/j.neurad.2015.10.005. PMID: 26704672Free PMC Article
The doublecortin gene family and disorders of neuronal structure.
Dijkmans TF, van Hooijdonk LW, Fitzsimons CP, Vreugdenhil E
Cent Nerv Syst Agents Med Chem 2010 Mar;10(1):32-46. doi: 10.2174/187152410790780118. PMID: 20236041
Genetic markers for retinitis pigmentosa.
Wang DY, Chan WM, Tam PO, Chiang SW, Lam DS, Chong KK, Pang CP
Hong Kong Med J 2005 Aug;11(4):281-8. PMID: 16085945
Coats'-type retinitis pigmentosa.
Khan JA, Ide CH, Strickland MP
Surv Ophthalmol 1988 Mar-Apr;32(5):317-32. doi: 10.1016/0039-6257(88)90094-x. PMID: 2457260

Clinical prediction guides

Functional Vision in Patients With Biallelic USH2A Variants.
Heon E, Melia M, Bocchino LE, Samarakoon L, Duncan JL, Ayala AR, Audo I, Bradley C, Cheetham JK, Dagnelie G, Durham TA, Hoyng CB, Jain N, Jayasundera KT, Pennesi ME, Weng CY; Foundation Fighting Blindness Consortium Investigator Group
Am J Ophthalmol 2024 Apr;260:200-211. Epub 2023 Dec 21 doi: 10.1016/j.ajo.2023.12.009. PMID: 38135239
IMPG2-Related Maculopathy.
Birtel J, Caswell R, De Silva SR, Herrmann P, Rehman S, Lotery AJ, Mahroo OA, Michaelides M, Webster AR, MacLaren RE, Charbel Issa P
Am J Ophthalmol 2024 Feb;258:32-42. Epub 2023 Oct 6 doi: 10.1016/j.ajo.2023.10.002. PMID: 37806544
Hyperautofluorescent Ring Pattern in Retinitis Pigmentosa: Clinical Implications and Modifications Over Time.
Antropoli A, Arrigo A, Bianco L, Cavallari E, Bandello F, Battaglia Parodi M
Invest Ophthalmol Vis Sci 2023 Sep 1;64(12):8. doi: 10.1167/iovs.64.12.8. PMID: 37669062Free PMC Article
Clinical characteristics of comorbid retinal dystrophies and primary angle closure disease.
Parameswarappa DC, Doctor MB, Natarajan R, Rani PK, Garudadri C, Jalali S, Senthil S
Int Ophthalmol 2022 Oct;42(10):3137-3144. Epub 2022 May 18 doi: 10.1007/s10792-022-02313-6. PMID: 35585370
Clinical Phenotype of PDE6B-Associated Retinitis Pigmentosa.
Kuehlewein L, Zobor D, Stingl K, Kempf M, Nasser F, Bernd A, Biskup S, Cremers FPM, Khan MI, Mazzola P, Schäferhoff K, Heinrich T, Haack TB, Wissinger B, Zrenner E, Weisschuh N, Kohl S
Int J Mol Sci 2021 Feb 27;22(5) doi: 10.3390/ijms22052374. PMID: 33673512Free PMC Article

Recent systematic reviews

A systematic review of inherited retinal dystrophies in Pakistan: updates from 1999 to April 2023.
Munir A, Afsar S, Rehman AU
BMC Ophthalmol 2024 Feb 5;24(1):55. doi: 10.1186/s12886-024-03319-7. PMID: 38317096Free PMC Article
Retinitis pigmentosa genes implicated in South Asian populations: a systematic review.
Zafar S, Ahmad K, Ali A, Baig R
J Pak Med Assoc 2017 Nov;67(11):1734-1739. PMID: 29171570

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      Clinical tests in GTR
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      Related Medical Subject Headings
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      OMIM records containing genes associated with phenotypes registered in MedGen
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