Date published: 2026-4-23

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SP-D Inhibitors

The target of SP-D inhibitors, surfactant protein D (SP-D), plays a pivotal role in orchestrating the immune response and regulating inflammation within the human body. SP-D belongs to the collectin family of proteins and is primarily located in the lungs and other mucosal surfaces. As a key component of the innate immune system, SP-D serves as a critical first line of defense against a spectrum of pathogens, including bacteria, viruses, and fungi. Its multifaceted functions involve the recognition and opsonization of pathogens, facilitation of phagocytosis by immune cells, and modulation of inflammatory responses. SP-D inhibitors are designed to specifically target the activity of SP-D, exerting their effects through interference with the protein's binding and aggregation processes. By disrupting the interactions between SP-D and microbial pathogens or immune cells, these inhibitors influence the activation of immune responses and contribute to the regulation of inflammatory cascades. The modulation of SP-D activity through inhibitors have implications in various medical contexts, ranging from respiratory diseases and infectious conditions to autoimmune disorders.

In summary, SP-D inhibitors represent a class of chemical compounds designed to modulate the immune response and inflammation by specifically targeting the collectin protein SP-D. The intricate interplay between SP-D and various pathogens underscores the importance of understanding the mechanisms underlying SP-D inhibitors' interference with the protein's functions. While the applications of SP-D inhibitors in medical contexts are compelling, further research is essential to elucidate their precise mechanisms and evaluate their safety and efficacy in research and development. The study of SP-D inhibitors not only sheds light on the complex interactions within the innate immune system but also holds promise for advancing strategies that may impact immune responses in health and disease.

SEE ALSO...

Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Dexamethasone

50-02-2sc-29059
sc-29059B
sc-29059A
100 mg
1 g
5 g
$91.00
$139.00
$374.00
36
(1)

This glucocorticoid can affect gene expression by interacting with glucocorticoid receptors, potentially downregulating the transcription of genes like that of SP-D.

Cyclosporin A

59865-13-3sc-3503
sc-3503-CW
sc-3503A
sc-3503B
sc-3503C
sc-3503D
100 mg
100 mg
500 mg
10 g
25 g
100 g
$63.00
$92.00
$250.00
$485.00
$1035.00
$2141.00
69
(5)

As an immunosuppressant, it can inhibit calcineurin, which in turn could affect the NF-AT transcription factor and possibly decrease SP-D gene transcription.

SB 431542

301836-41-9sc-204265
sc-204265A
sc-204265B
1 mg
10 mg
25 mg
$82.00
$216.00
$416.00
48
(1)

This inhibitor may block TGF-β signaling, which is involved in various gene expressions including possibly SP-D, leading to its decreased expression.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

It inhibits mTOR, which can alter several transcriptional programs, potentially reducing SP-D expression as part of a broader anti-inflammatory effect.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Known for its anti-inflammatory properties, curcumin might suppress NF-κB, a transcription factor that can regulate the expression of immune-related proteins.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

This compound can modulate several signaling pathways and might downregulate SP-D expression as part of its wide-ranging effects on gene expression.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

A major component of green tea, EGCG, may influence multiple signaling pathways, possibly reducing the expression of certain immune-related proteins like SP-D.

Hydrocortisone

50-23-7sc-300810
5 g
$102.00
6
(1)

As a compound, it may interact with glucocorticoid receptors and modulate the expression of genes involved in the immune response, potentially including SP-D.

Cholecalciferol

67-97-0sc-205630
sc-205630A
sc-205630B
1 g
5 g
10 g
$71.00
$163.00
$296.00
2
(1)

It can regulate gene expression through the vitamin D receptor, and could modulate immune response genes, possibly affecting SP-D expression levels.

Aspirin

50-78-2sc-202471
sc-202471A
5 g
50 g
$20.00
$42.00
4
(1)

It may inhibit cyclooxygenase enzymes and alter the production of prostaglandins, which can have downstream effects on immune gene expression.